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  • Limited open access in socioecological systems: How do communities deal with environmental unpredictability?
    Conserv. Lett. (IF 7.279) Pub Date : 2018-11-15
    Rafael Morais Chiaravalloti; Mark Dyble

    Classical theory on the commons holds that rules are fundamental to sustainability. However, open access may be present in many sustainable socioecological systems. Here, we explore the interaction between environmental unpredictability and cooperation in a fishery in the Pantanal wetland, Brazil. We show that a variable annual flood pulse combined with channel blockages results in a high turnover in fishing grounds. To counter this variability, fishers openly share information about fishing areas with all community members, but are highly territorial with neighboring communities. We argue that this open access within communities but common property between communities represents a system of limited open access and, using a mathematical model, suggest that such a system is favored under conditions of moderate competition and high levels of resource unpredictability. Failing to take into account the social norms that underpin limited open access systems may undermine conservation interventions.

    更新日期:2018-11-15
  • Reconciling pest control, nature conservation, and recreation in coniferous forests
    Conserv. Lett. (IF 7.279) Pub Date : 2018-11-15
    Jonas Hagge; Franz Leibl; Jörg Müller; Martin Plechinger; João Gonçalo Soutinho; Simon Thorn

    Protected areas are not only crucial for biodiversity and natural processes but also for recreation. Although a benign neglect strategy of dealing with natural disturbances in protected areas is beneficial for nature, public debate on avoiding increased pest population growth has intensified. We evaluated the effect of mechanical pest control measures in decreasing populations of insect pests, maintaining nontarget biodiversity, retaining high recreational value, and keeping economic costs low. Debarking and bark scratching or gouging effectively prevented infestation of felled trees by European spruce bark beetles (Ips typographus) and controlled the beetles in recently infested trees. Bark scratching or gouging retained biodiversity at natural levels, whereas debarking decreased biodiversity by 54% with higher economic costs. The public rated bark‐gouged trees more positively than debarked trees. We thus urge authorities to promote bark scratching or gouging in the control of bark beetles in protected areas instead of salvage logging and debarking.

    更新日期:2018-11-15
  • Individual shark profiling: An innovative and environmentally responsible approach for selectively managing human fatalities
    Conserv. Lett. (IF 7.279) Pub Date : 2018-11-11
    Eric E. G. Clua; John D. C. Linnell

    Most shark‐induced human fatalities are followed by widespread and unselective culling campaigns that have limited effectiveness and may have high ecological costs for threatened species. The blanket culling strategy implicitly assumes that incident risk is directly correlated with shark density, an assumption that has yet to be demonstrated. We present the alternative hypothesis that incidents are more likely to be caused by behavioral variability among individual sharks than due to shark density. Throughout their ontogenetic development, large species of sharks opportunistically establish a diet that is rarely, if ever, inclusive of humans as a food source. We propose that, some animals with specific behaviors (including boldness) may potentially pose a higher risk than conspecifics. Under this scenario, the risk of a shark attack in a given area would relate to the presence of a limited number of high‐risk individuals rather than shark density.

    更新日期:2018-11-12
  • An experimental translocation identifies habitat features that buffer camouflage mismatch in snowshoe hares
    Conserv. Lett. (IF 7.279) Pub Date : 2018-11-09
    Evan C. Wilson; Amy A. Shipley; Benjamin Zuckerberg; M. Zachariah Peery; Jonathan N. Pauli

    Conservation for species impacted by climate change often occurs at scales impractical for local land managers. Snowshoe hares (Lepus americanus) are one of the most well‐documented species declining from climate change–specifically a reduction in snowcover–yet clear management strategies have yet to emerge. To test whether camouflage mismatch is reducing hare survival we translocated 96 hares to a site recently extirpated of snowshoe hares, and monitored coat color change, mismatch with snow, habitat use, and weekly survival in winter‐spring of 2017. Hare survival was low during periods of camouflage mismatch, and mismatched hares were 3.2 × less likely to survive, but this pattern varied by habitat. We found that aspen‐alder stands >5 hectares negated the mortality costs of mismatch. We provide experimental evidence that mismatch is driving the range contraction of snowshoe hares, and identify specific habitats to buffer the consequences of climate change on this declining winter specialist.

    更新日期:2018-11-10
  • Diverse knowledge systems reveal social–ecological dynamics that inform species conservation status
    Conserv. Lett. (IF 7.279) Pub Date : 2018-10-26
    Lynn Chi Lee; Joe Thorley; Jane Watson; Mike Reid; Anne Katherine Salomon

    Understanding changes over historical timescales is essential to gauge conservation status of a species. Modern ecological data typically neglect past magnitudes of change, which fortunately can be evaluated by bridging disparate knowledge sources. We synthesized zooarchaeological, historical, traditional, and western science knowledge to document changes in relative abundance of key species in Canada's northern abalone social–ecological system (SES) from the Holocene to present. Integrated models fit to traditional and western science data revealed 3.7% annual population decline from 1940s to 2010s for large abalone, although traditional knowledge density estimates were 9.5× higher than those derived from western science. Abalone are presently scarce compared to the mid‐1900s, but more abundant than before the early 1800s, calling their endangered status into question. Linking multiple knowledge sources can build SES understanding, facilitate power sharing, and support ecologically sustainable and socially just conservation outcomes.

    更新日期:2018-10-26
  • Leveraging satellite technology to create true shark sanctuaries
    Conserv. Lett. (IF 7.279) Pub Date : 2018-10-09
    Darcy Bradley; Juan Mayorga; Douglas J. McCauley; Reniel B. Cabral; Patric Douglas; Steven D. Gaines

    Shark sanctuaries are an ambitious attempt to protect huge areas of ocean space to curtail overfishing of sharks. If shark sanctuaries are to succeed, effective surveillance and enforcement is urgently needed. We use a case study with a high level of illegal shark fishing within a shark sanctuary to help motivate three actionable opportunities to create truly effective shark sanctuaries by leveraging satellite technology: (1) require vessel tracking systems; (2) partner with international research organizations; and (3) ban vessels previously associated with illegal fishing from shark sanctuaries. Sustaining the level of fishing mortality observed in our case study would lead even a healthy shark population to collapse to <10% of its unfished state in fewer than five years. We outline implementations pathways and provide a roadmap to pair new and emerging satellite technologies with existing international agreements to offer new hope for shark conservation successes globally.

    更新日期:2018-10-10
  • Harnessing marine microclimates for climate change adaptation and marine conservation
    Conserv. Lett. (IF 7.279) Pub Date : 2018-10-03
    C. Brock Woodson; Fiorenza Micheli; Charles Boch; Maha Al‐Najjar; Antonio Espinoza; Arturo Hernandez; Leonardo Vázquez‐Vera; Andrea Saenz‐Arroyo; Stephen G. Monismith; Jorge Torre

    ‐ Responses to climate change and large‐scale forcing can vary widely at local scales creating marine microclimates. ‐ Microclimates are robust even under extreme large‐scale forcing events (ENSO, climate change) potentially creating spatial refuges or ‘safe spaces’ for important species. ‐ Small/medium no‐take zones, artificial reefs, and other possible spatial management can be placed to harness local variability as an adaptation or conservation measure in the face of climate change.

    更新日期:2018-10-10
  • The ephemerality of secondary forests in southern Costa Rica
    Conserv. Lett. (IF 7.279) Pub Date : 2018-09-26
    J. Leighton Reid; Matthew E. Fagan; James Lucas; Joshua Slaughter; Rakan A. Zahawi

    Secondary forests are increasingly recognized for conserving biodiversity and mitigating global climate change, but these and other desired outcomes can only be achieved after decades of regeneration, and secondary forests are frequently recleared before they recover to predisturbance conditions. We used a time series of aerial photographs (1947‐2014) to evaluate multidecadal persistence of secondary forests across a 320 km2 landscape in southern Costa Rica. Secondary forests had relatively short lifespans, with 50% recleared within 20 years and 85% recleared within 54 years of when they were first observed. Larger forest fragments and forests near rivers had a lower reclearance hazard, but forest persistence did not differ over time, indicating that regional forest regeneration may be generally ephemeral. Costa Rica has made an international commitment to restore 1 million ha of degraded land by 2020. Depending on how this is achieved, only half that target may remain forested by 2040.

    更新日期:2018-09-27
  • The extirpation of species outside protected areas
    Conserv. Lett. (IF 7.279) Pub Date : 2018-09-21
    Elizabeth H. Boakes; Richard A. Fuller; Philip J.K. McGowan

    Protected areas (PAs) are fundamental to conservation efforts but they are only part of a successful conservation strategy. We examine biodiversity outside PAs in Sundaland, one of the world's most biologically degraded regions. Using the avian order Galliformes as a case study, we identify species that have not been sighted outside PAs within the last 20 years on each individual landmass (i.e., Malay Peninsula, Borneo, Sumatra, Java, and Bali). We estimate these species’ extirpation dates outside PAs using optimal linear estimation and species’ sighting records.

    更新日期:2018-09-21
  • Restoring to the future: Environmental, cultural, and management trade‐offs in historical versus hybrid restoration of a highly modified ecosystem
    Conserv. Lett. (IF 7.279) Pub Date : 2018-09-19
    Kimberly M. Burnett; Tamara Ticktin; Leah L. Bremer; Shimona A. Quazi; Cheryl Geslani; Christopher A. Wada; Natalie Kurashima; Lisa Mandle; Pua‘ala Pascua; Taina Depraetere; Dustin Wolkis; Merlin Edmonds; Thomas Giambelluca; Kim Falinski; Kawika B. Winter

    With growing calls to scale up reforestation efforts worldwide, conservation managers increasingly must decide whether and how to restore highly altered ecosystems. However, empirical research on potential trade‐offs remains scarce. We use a Hawai'i watershed to demonstrate a collaborative, interdisciplinary approach to identifying synergies and trade‐offs associated with maintaining an unrestored forest, versus restoration to a historical or hybrid (native and non‐native plant species) state. We focused on restoration scenarios designed by conservation managers and measured ecological, hydrologic, and cultural outcomes they identified as important metrics of success. The hybrid restoration scenario maximized potential outcomes at moderate cost, and increased two rarely measured but often critical metrics to managers and communities: cultural value and resilience to disturbance. Hybrid restoration approaches developed collaboratively can provide a viable option for scaling up restoration in island ecosystems and other contexts where invasive species pose significant challenges and/or where community support is important.

    更新日期:2018-09-19
  • Amplifying plant disease risk through assisted migration
    Conserv. Lett. (IF 7.279) Pub Date : 2018-09-14
    Allison B. Simler; Matthew A. Williamson; Mark W. Schwartz; David M. Rizzo

    Translocation of species, populations, or genotypes beyond their historic ranges (i.e., assisted migration [AM]) is an oft‐debated climate adaptation strategy. Well‐intentioned AM actions could alter disease dynamics for target species and recipient sites, resulting in unanticipated detrimental economic and ecological impacts. Although disease risks are occasionally mentioned in AM debates, current regulations or best practices that reduce or mitigate these complex risks are generally lacking in North America. We use the Disease Triangle, a foundational framework in pathology, to illustrate pathways through which AM may impact disease emergence, to identify knowledge gaps, and to suggest best practices to reduce disease risks. We highlight empirical examples in which altering pathogen distributions, host communities, and environment have historically resulted in costly and ecologically damaging diseases in plants. Although guidelines to reduce disease risks in AM are generally lacking, policies governing endangered species, invasive species, and disease management can provide starting points for a more comprehensive policy. We use examples from the United States to identify key strengths and weaknesses that can inform regulations to reduce disease risks associated with AM. We argue that consideration of disease motivates policy development that incorporates improved risk assessments, agency coordination, and accountability mechanisms.

    更新日期:2018-09-17
  • Prioritizing recovery funding to maximize conservation of endangered species
    Conserv. Lett. (IF 7.279) Pub Date : 2018-09-14
    Tara G. Martin; Laura Kehoe; Chrystal Mantyka‐Pringle; Iadine Chades; Scott Wilson; Robin G. Bloom; Stephen K. Davis; Ryan Fisher; Jeff Keith; Katherine Mehl; Beatriz Prieto Diaz; Mark E. Wayland; Troy I. Wellicome; Karl P. Zimmer; Paul A. Smith

    The absence of a rigorous mechanism for prioritizing investment in endangered species management is a major implementation hurdle affecting recovery. Here, we present a method for prioritizing strategies for endangered species management based on the likelihood of achieving species’ recovery goals per dollar invested. We demonstrate our approach for 15 species listed under Canada's Species at Risk Act that co‐occur in Southwestern Saskatchewan. Without management, only two species have >50% probability of meeting recovery objectives; whereas, with management, 13 species exceed the >50% threshold with the implementation of just five complementary strategies at a cost of $126m over 20 years. The likelihood of meeting recovery objectives rarely exceeded 70% and two species failed to reach the >50% threshold. Our findings underscore the need to consider the cost, benefit, and feasibility of management strategies when developing recovery plans in order to prioritize implementation in a timely and cost‐effective manner.

    更新日期:2018-09-17
  • Predicting impact to assess the efficacy of community‐based marine reserve design
    Conserv. Lett. (IF 7.279) Pub Date : 2018-09-04
    Patrick F. Smallhorn‐West; Tom C. L. Bridge; Siola'a Malimali; Robert L. Pressey; Geoffrey P. Jones

    During the planning phase the efficacy of different strategies to manage marine resources should ultimately be assessed by their potential impact, or ability to make a difference to ecological and social outcomes. While community‐based and systematic approaches to establishing marine protected areas have their strengths and weaknesses, comparisons of their effectiveness often fail to explicitly address potential impact. Here, we predict conservation impact to compare recently implemented community‐based marine reserves in Tonga to a systematic configuration specifically aimed at maximizing impact. Boosted regression tree outputs indicated that fishing pressure accounted for ∼24% of variation in target species biomass. We estimate that the community‐based approach provides 84% of the recovery potential of the configuration with the greatest potential impact. This high potential impact results from community‐based reserves being located close to villages, where fishing pressure is greatest. These results provide strong support for community‐based marine management, with short‐term benefits likely to accrue even where there is little scope for systematic reserve design.

    更新日期:2018-09-17
  • Missing, delayed, and old: The status of ESA recovery plans
    Conserv. Lett. (IF 7.279) Pub Date : 2018-08-09
    Jacob W. Malcom; Ya‐Wei Li

    Recovery planning is an essential part of implementing the U.S. Endangered Species Act (ESA), but conservationists and government agencies recognize challenges with the current planning process. Using data from all U.S. domestic and transboundary ESA‐listed species, we quantify the completeness, timeliness, age, and other variation among ESA recovery plans over the past 40 years. Among eligible listed taxa (n = 1,548), nearly one‐fourth lack final recovery plans; half of plans have taken >5 years to finalize after listing; half of recovery plans are more than 20 years old; and there is significant variation in planning between agencies, and among regions and taxonomic groups. These results are not unexpected given dwindling budgets and an increasing number of species requiring protection, but underscore the need for systematic improvements to recovery planning. We discuss solutions—some already underway—that may address some of the shortcomings and help improve recovery action implementation for threatened and endangered species.

    更新日期:2018-09-17
  • Environmental governance: A practical framework to guide design, evaluation, and analysis
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-24
    Nathan J. Bennett; Terre Satterfield

    Governance is one of the most important factors for ensuring effective environmental management and conservation actions. Yet, there is still a relative paucity of comprehensive and practicable guidance that can be used to frame the evaluation, design, and analysis of systems of environmental governance. This conceptual review and synthesis article seeks to addresses this problem through resituating the broad body of governance literature into a practical framework for environmental governance. Our framework builds on a rich history of governance scholarship to propose that environmental governance has four general aims or objectives – to be effective, to be equitable, to be responsive, and to be robust. Each of these four objectives need to be considered simultaneously across the institutional, structural, and procedural elements of environmental governance. Through a review of the literature, we developed a set of attributes for each of these objectives and relate these to the overall capacity, functioning, and performance of environmental governance. Our aim is to provide a practical and adaptable framework that can be applied to the design, evaluation, and analysis of environmental governance in different social and political contexts, to diverse environmental problems and modes of governance, and at a range of scales.

    更新日期:2018-09-17
  • Efficiency of species survey networks can be improved by integrating different monitoring approaches in a spatial prioritization design
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-24
    Alejandra Morán‐Ordóñez; Stefano Canessa; Gerard Bota; Lluis Brotons; Sergi Herrando; Virgilio Hermoso

    Public participation to monitoring programs is increasingly advocated to overcome scarcity of resources and deliver important information for policy‐making. Here, we illustrate the design of optimal monitoring networks for bird species of conservation concern in Catalonia (NE Spain), under different scenarios of combined governmental and citizen‐science monitoring approaches. In our case study, current government efforts, limited to protected areas, were insufficient to cover the whole spectrum of target species and species‐threat levels, reinforcing the assumption that citizen‐science data can greatly assist in achieving monitoring targets. However, simply carrying out both government and citizen‐science monitoring ad hoc led to inefficiency and duplication of efforts: some species were represented in excess of targets while several features were undersampled. Policy‐making should concentrate on providing an adequate platform for coordination of government and public‐participatory monitoring to minimize duplicated efforts, overcome the biases of each monitoring program and obtain the best from both.

    更新日期:2018-09-17
  • The importance of early life experience and animal cultures in reintroductions
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-20
    Claire S. Teitelbaum; Sarah J. Converse; Thomas Mueller

    Even within a single population, individuals can display striking differences in behavior, with consequences for their survival and fitness. In reintroduced populations, managers often attempt to promote adaptive behaviors by controlling the early life experiences of individuals, but it remains largely unknown whether this early life training has lasting effects on behavior. We investigated the behavior of reintroduced whooping cranes (Grus americana) trained to migrate using two different methods to see whether their migration behavior remained different or converged over time. We found that the behavior of the two groups converged relatively rapidly, indicating that early life training may not produce lasting effects, especially in species that display lifelong learning and behavioral adaptation. In some cases, managers may consider continual behavioral interventions after release if desired behaviors are not present. Understanding the roles early life experience and animal cultures play in determining behavior is crucial for successful reintroduction programs.

    更新日期:2018-09-17
  • Support for the U.S. Endangered Species Act over time and space: Controversial species do not weaken public support for protective legislation
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-19
    Jeremy T. Bruskotter; John A. Vucetich; Kristina M. Slagle; Ramiro Berardo; Ajay S. Singh; Robyn S. Wilson

    We used data from a 2014 survey (n = 1,287) of U.S. residents and recent polls to assess how public support for the U.S. Endangered Species Act (ESA) changed over time, and whether protecting controversial species affects support for the law. We assessed support for the ESA, trust in the U.S. Fish and Wildlife Service (FWS), and attitudes toward wolves across three regions with different experiences in conserving gray wolves through the ESA. We found: (a) ∼4 in 5 Americans support the ESA, whereas ∼1 in 10 oppose; (b) support for the ESA remained stable over the past two decades; (c) strong majorities (>68%) of individuals identifying with 8 special interest types support the ESA; and (d) no differences in support for the ESA, attitudes toward wolves, or trust in the FWS across regions. Results suggest that protecting species—even controversial predators—does not weaken support for protective legislation.

    更新日期:2018-09-17
  • Conserving European biodiversity across realms
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-16
    Sylvaine Giakoumi; Virgilio Hermoso; Silvia B. Carvalho; Vasiliki Markantonatou; Mindaugas Dagys; Takuya Iwamura; Wolfgang N. Probst; Robert J. Smith; Katherine L. Yates; Vasiliki Almpanidou; Tihana Novak; Noam Ben‐Moshe; Stelios Katsanevakis; Joachim Claudet; Marta Coll; Alan Deidun; Franz Essl; José A. García‐Charton; Carlos Jimenez; Salit Kark; Milica Mandić; Antonios D. Mazaris; Wolfgang Rabitsch; Vanessa Stelzenmüller; Elena Tricarico; Ioannis N. Vogiatzakis

    Terrestrial, freshwater, and marine ecosystems are connected via multiple biophysical and ecological processes. Identifying and quantifying links among ecosystems is necessary for the uptake of integrated conservation actions across realms. Such actions are particularly important for species using habitats in more than one realm during their daily or life cycle. We reviewed information on the habitats of 2,408 species of European conservation concern and found that 30% of the species use habitats in multiple realms. Transportation and service corridors, which fragment species habitats, were identified as the most important threat impacting ∼70% of the species. We examined information on 1,567 European Union (EU) conservation projects funded over the past 25 years, to assess the adequacy of efforts toward the conservation of “multi‐realm” species at a continental scale. We discovered that less than a third of multi‐realm species benefited from projects that included conservation actions across multiple realms. To achieve the EU's conservation target of halting biodiversity loss by 2020 and effectively protect multi‐realm species, integrated conservation efforts across realms should be reinforced by: (1) recognizing the need for integrated management at a policy level, (2) revising conservation funding priorities across realms, and (3) implementing integrated land‐freshwater‐sea conservation planning and management.

    更新日期:2018-09-17
  • Incorporating biotic interactions reveals potential climate tolerance of giant pandas
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-13
    Fang Wang; Qing Zhao; William J. McShea; Melissa Songer; Qiongyu Huang; Xiaofeng Zhang; Lingguo Zhou

    Many studies have overestimated species’ range shifts under climate change because they treat climate as the only determinant while ignoring biotic factors. To assess the response of giant pandas to climate change, we incorporated spatial effects in modeling bamboo distributions, which in turn was incorporated to represent giant panda–bamboo biotic interactions in predicting giant panda distribution. Our study revealed potential tolerance of giant pandas to climate change. We found significant residual spatial correlation in the bamboo models. The biotic interactions with bamboo understories and anthropogenic activities had large effects on panda distribution, which lowered the relative importance of climatic variables. Our results are fundamentally different from previous studies that used climate‐only and nonspatial approaches, which may have overestimated the effects of climate change on panda and lead to inappropriate conservation recommendations. We strongly advocate that giant panda conservation planning continues to focus on protecting bamboo forest and reducing anthropogenic interferences.

    更新日期:2018-09-17
  • Peace in Colombia is a critical moment for Neotropical connectivity and conservation: Save the northern Andes–Amazon biodiversity bridge
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-13
    Nicola Clerici; Camilo Salazar; Carolina Pardo‐Díaz; Chris D. Jiggins; James E. Richardson; Mauricio Linares

    Colombia is one of the most biodiverse countries in the world that has historically and is currently experiencing extensive deforestation and habitat fragmentation. Here we show how the most extensive region acting as a natural corridor between the Colombian Andes and Amazon biogeographical regions, the Picachos–Tinigua–Sierra de la Macarena–Chiribiquete megacorridor, is being eroded by large‐scale agricultural expansion endangering the maintenance and connection of gene flow and biodiversity exchange. Several phylogenetic studies indicate that the complex dynamics between the Andean highlands and the Amazonian lowlands have strongly influenced the origin and maintenance of Neotropical biodiversity. We appeal for the attention of international conservation and governmental organizations to direct resources and promote projects focused on the preservation and sustainable management of this strategic Andes–Amazon bridge in both protected and unprotected areas. In the current postconflict era, Colombia has a unique opportunity to create a new social and economic paradigm based on long‐term sustainably developed landscapes and more equitable sharing of wealth. We believe improved management and conservation efforts for the Picachos–Tinigua–Macarena–Chiribiquete megacorridor would demonstrate a collective will in helping to achieve this goal.

    更新日期:2018-09-17
  • When portfolio theory can help environmental investment planning to reduce climate risk to future environmental outcomes—and when it cannot
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-12
    Amy W. Ando; Jennifer Fraterrigo; Glenn Guntenspergen; Aparna Howlader; Mindy Mallory; Jennifer H. Olker; Samuel Stickley

    Variability among climate change scenarios produces great uncertainty in what is the best allocation of resources among investments to protect environmental goods in the future. Previous research shows Modern Portfolio Theory (MPT) can help optimize environmental investment targeting to reduce outcome uncertainty with minimal loss of expected level of environmental benefits, but no work has yet identified the types of cases for which MPT is most useful. This article assembles data on 26 different conservation cases in three distinct ecological settings and develops new metrics to evaluate how well MPT can reduce uncertainty in future outcomes of a set of environmental investments. We find MPT is broadly but not universally useful and works best when multiple investments have negatively correlated outcomes across climate scenarios; a second‐best investment has expected value almost as good as the value in the best investment; or multiple investments have little uncertainty in ecological outcomes.

    更新日期:2018-09-17
  • Predator Free 2050: A flawed conservation policy displaces higher priorities and better, evidence‐based alternatives
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-10
    Wayne Linklater; Jamie Steer

    New Zealand's policy to exterminate five introduced predators by 2050 is well‐meant but warrants critique and comparison against alternatives. The goal is unachievable with current or near‐future technologies and resources. Its effects on ecosystems and 26 other mammalian predators and herbivores will be complex. Some negative outcomes are likely. Predators are not always and everywhere the largest impact on biodiversity. Lower intensity predator suppression, habitat protection and restoration, and prey refugia will sometimes better support threatened biodiversity. The policy draws attention to where predators are easily killed, not where biodiversity values are greatest. Pest control operations are already contested and imposing the policy is likely to escalate those conflicts. While “high‐profile,” a focus on predator eradication obscures the fact that indigenous habitat cover and quality continues to decline. Thus, the policy is flawed and risks diverting effort and resources from higher environmental priorities and better alternatives. Biodiversity conservation policies should be guided by cost‐benefit analyses, prioritization schemes, and conservation planning in an adaptive management framework to deliver nuanced outcomes appropriate to scale‐ and site‐specific variation in biodiversity values and threats. The success of biodiversity sanctuary‐“spillover” landscapes, habitat restoration, and metapopulation management provide the foundation to build a better policy.

    更新日期:2018-09-17
  • The area–heterogeneity tradeoff applied to spatial protection of rockfish (Sebastes spp.) species richness
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-06
    Alejandro Frid; Madeleine McGreer; Katie SP Gale; Emily Rubidge; Tristan Blaine; Mike Reid; Angeleen Olson; Sandie Hankewich; Ernest Mason; Dave Rolston; Ernest Tallio

    The “area–heterogeneity tradeoff” hypothesis predicts unimodal effects of habitat heterogeneity on species richness, implying that habitats with intermediate heterogeneity may be priority for spatial protection. Alternatively, if heterogeneity effects are positive, then protecting the most heterogeneous habitats may take precedence. We tested for unimodal effects of habitat heterogeneity on the species density (area‐corrected richness) of rockfishes (Sebastes spp.): long‐lived, benthic fishes vulnerable to overexploitation. Inconsistent with predictions, topographic structural complexity had a strong linear effect on species density; other heterogeneity measures had weaker, positive effects and the only unimodal effect (depth range) was weak. The clear implication is that, to protect the highest density of rockfish species, marine protected areas should include the most topographically complex substrates. Our results can also help refine and test species distribution models needed to inform spatial planning where in situ surveys are lacking. The area–heterogeneity tradeoff generates useful predictions for which support may be context‐dependent.

    更新日期:2018-09-17
  • Impact of protected areas on poverty, extreme poverty, and inequality in Nepal
    Conserv. Lett. (IF 7.279) Pub Date : 2018-07-04
    Bowy den Braber; Karl L. Evans; Johan A. Oldekop

    Protected areas (PAs) are key for biodiversity conservation, but there are concerns that they can exacerbate poverty or unequal access to potential benefits, such as those arising from tourism. We assess how Nepalese PAs influence poverty, extreme poverty, and inequality using a multidimensional poverty index, and a quasi‐experimental design that controls for potential confounding factors in non‐random treatment allocation. We specifically investigate the role of tourism in contributing to PA impacts. Nepali PAs reduced overall poverty and extreme poverty, and crucially, did not exacerbate inequality. Benefits occurred in lowland and highland regions, and were often greater when a larger proportion of the area was protected. Spread of benefits to nearby areas outside PAs was negligible. Furthermore, older PAs performed better than more recently established ones, suggesting the existence of time lags. Although tourism was a key driver of poverty alleviation, PAs also reduced extreme poverty in areas with fewer tourists.

    更新日期:2018-09-17
  • Risk‐sensitive planning for conserving coral reefs under rapid climate change
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-27
    Hawthorne L. Beyer; Emma V. Kennedy; Maria Beger; Chaolun Allen Chen; Joshua E. Cinner; Emily S. Darling; C. Mark Eakin; Ruth D. Gates; Scott F. Heron; Nancy Knowlton; David O. Obura; Stephen R. Palumbi; Hugh P. Possingham; Marji Puotinen; Rebecca K. Runting; William J. Skirving; Mark Spalding; Kerrie A. Wilson; Sally Wood; John E. Veron; Ove Hoegh‐Guldberg

    Coral reef ecosystems are seriously threatened by changing conditions in the ocean. Although many factors are implicated, climate change has emerged as a dominant and rapidly growing threat. Developing a long‐term strategic plan for the conservation of coral reefs is urgently needed yet is complicated by significant uncertainty associated with climate change impacts on coral reef ecosystems. We use Modern Portfolio Theory to identify coral reef locations globally that, in the absence of other impacts, are likely to have a heightened chance of surviving projected climate changes relative to other reefs. Long‐term planning that is robust to uncertainty in future conditions provides an objective and transparent framework for guiding conservation action and strategic investment. These locations constitute important opportunities for novel conservation investments to secure less vulnerable yet well‐connected coral reefs that may, in turn, help to repopulate degraded areas in the event that the climate has stabilized.

    更新日期:2018-09-17
  • Collapse of farmland bird populations in an Eastern European country following its EU accession
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-27
    Jiří Reif; Zdeněk Vermouzek

    Eastern European countries are considered a stronghold for the continent's farmland biodiversity. The abundance of farmland birds is one important element of this biodiversity. At the end of the 20th century, member states of the European Union (EU) experienced serious population declines of farmland birds due to agricultural intensification, which was not observed in the Eastern European nonmember states. In 2004, 10 mostly Eastern European countries acceded to the EU. It is thus important to ask whether this historical step resulted in changes of agricultural production and, in turn, in farmland bird populations. Here we used annual crop yields and monitoring data on farmland bird abundance in an Eastern European new EU‐member state and showed that agricultural production intensified and farmland bird populations declined steeply after country's EU accession. These results indicate that entering EU's Common Agricultural Policy caused significant deterioration of farmland biodiversity in a once biodiversity‐rich region.

    更新日期:2018-09-17
  • Tracking trends in the extinction risk of wild relatives of domesticated species to assess progress against global biodiversity targets
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-27
    Philip J. K. McGowan; Louise Mair; Andrew Symes; James R. S. Westrip; Hannah Wheatley; Sarah Brook; James Burton; Sarah King; William J. McShea; Patricia D. Moehlman; Andrew T. Smith; Jane C. Wheeler; Stuart H. M. Butchart

    Ensuring the conservation of wild relatives of domesticated animals that are important food sources for humans forms part of targets for both the Convention on Biological Diversity (CBD) and the Sustainable Development Goals (SDG). There is, however, no indicator allowing progress toward these aims to be measured. We identified 30 domesticated mammal and bird taxa that are sources of food for humans and consider 55 mammal and 449 bird species to be their wild relatives. We developed a Red List Index for these wild relatives, which declined by 2.02% between 1988 and 2016. Currently, 15 species are Critically Endangered, indicating that the Red List Index could deteriorate sharply unless action is taken to ensure the survival of highly threatened species and the reversal of their declines. This Index can meet a range of global policy needs, including reporting on progress toward Aichi Target 13 of the Strategic Plan for Biodiversity 2011–2020 and SDG Target 2.5.

    更新日期:2018-09-17
  • Poor ecological representation by an expensive reserve system: Evaluating 35 years of marine protected area expansion
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-25
    Kerstin Jantke; Kendall R. Jones; James R. Allan; Alienor L.M. Chauvenet; James E.M. Watson; Hugh P. Possingham

    Global areal protection targets have driven a dramatic expansion of the marine protected area (MPA) estate. We analyzed how cost‐effective global MPA expansion has been since the inception of the first global target (set in 1982) in achieving ecoregional representation. By comparing spatial patterns of MPA expansion against optimal MPA estates using the same expansion rates, we show the current MPA estate is both expensive and ineffective. Although the number of ecoregions represented tripled and 12.7% of national waters was protected, 61% of ecoregions and 81% of countries are not 10% protected. Only 10.3% of the national waters of the world would be sufficient to protect 10% of each ecoregion if MPA growth since 1982 strategically targeted underrepresented ecoregions. Unfortunately 16.3% of national waters are required for the same representative target if systematic protection started in 2016 (an extra 3.6% on top of 12.7%). To avoid the high costs of adjusting increasingly biased MPA systems, future efforts should embrace target‐driven systematic conservation planning.

    更新日期:2018-09-17
  • Generic names and mislabeling conceal high species diversity in global fisheries markets
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-22
    Donna‐Mareè Cawthorn; Charles Baillie; Stefano Mariani

    Consumers have the power to influence conservation of marine fishes by selectively purchasing sustainably harvested species. Yet, this power is hindered by vague labeling and seafood fraud, which may mask market biodiversity and lead to inadvertent consumption of threatened species. Here, we investigate the repercussions of such labeling inaccuracies for one of the world's most highly prized families of fishes‐–the snappers (Family: Lutjanidae). By DNA barcoding 300 “snapper” samples collected from six countries, we show that the lax application of this umbrella term and widespread mislabeling (40%) conceal the identities of at least 67 species from 16 families in global marketplaces, effectively lumping taxa for sale that derive from an array of disparately managed fisheries and have markedly different conservation concerns. Bringing this trade into the open should compel a revision of international labeling and traceability policies, as well as enforcement measures, which currently allow such extensive biodiversity to be consumed unknowingly.

    更新日期:2018-09-17
  • Transboundary cooperation improves endangered species monitoring and conservation actions: A case study of the global population of Amur leopards
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-19
    Anna V. Vitkalova; Limin Feng; Alexander N. Rybin; Brian D. Gerber; Dale G. Miquelle; Tianming Wang; Haitao Yang; Elena I. Shevtsova; Vladimir V. Aramilev; Jianping Ge

    Political borders and natural boundaries of wildlife populations seldom coincide, often to the detriment of conservation objectives. Transnational monitoring of endangered carnivores is rare, but is necessary for accurate population monitoring and coordinated conservation policies. We investigate the benefits of collaboratively monitoring the abundance and survival of the critically endangered Amur leopard, which occurs as a single transboundary population across China and Russia. Country‐specific results overestimated abundance and were generally less precise compared to integrated monitoring estimates; the global population was similar in both years: 84 (70–108, 95% confidence interval). Uncertainty in country‐specific annual survival estimates were approximately twice the integrated estimates of 0.82 (0.69–0.91, 95% confidence limits). This collaborative effort provided a better understanding of Amur leopard population dynamics, represented a first step in building trust, and lead to cooperative agreements to coordinate conservation policies.

    更新日期:2018-09-17
  • Giant panda distributional and habitat‐use shifts in a changing landscape
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-19
    Wei Wei; Ronald R. Swaisgood; Qiang Dai; Zhisong Yang; Shibin Yuan; Megan A. Owen; Nicholas W. Pilfold; Xuyu Yang; Xiaodong Gu; Hong Zhou; Han Han; Jindong Zhang; Mingsheng Hong; Zejun Zhang

    Long‐term data on populations, threats, and habitat‐use changes are fundamentally important for conservation policy and management decisions affecting species, but these data are often in short supply. Here, we analyze survey data from 57,087 plots collected in approximately three‐fourths of the giant panda's (Ailuropoda melanoleuca) distributional range during China's national surveys conducted in 1999–2003 and 2011–2014. Pandas associated preferentially with several ecological factors and avoided areas impacted by human activities, such as roads, livestock, mining, and tourism. Promise is shown by dramatic declines in logging rates, but is counterbalanced with recently emerging threats. Pandas have increasingly utilized secondary forest as these forests recovered under protective measures. Pandas have undergone a distributional shift to higher elevations, despite the elevational stability of their bamboo food source, perhaps in response to a similar upward shift in the distribution of livestock. Our findings showcase robust on‐the‐ground data from one of the largest‐scale survey efforts worldwide for an endangered species and highlight how science and policy have contributed to this remarkable success story, and help frame future management strategies.

    更新日期:2018-09-17
  • Population models reveal unexpected patterns of local persistence despite widespread larval dispersal in a highly exploited species
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-13
    Lysel Garavelli; J. Wilson White; Iliana Chollett; Laurent Marcel Chérubin

    Nearshore marine populations are structured in metapopulations that are connected through larval dispersal across national boundaries. One of the main challenges for effective management of these metapopulations is the need for partnerships between nations that share the same resource. By coupling large‐scale connectivity information to a dynamic population model, we analyzed the patterns of connectivity and population persistence for the Caribbean spiny lobster (Panulirus argus) metapopulation both within and across national boundaries. Although spiny lobster subpopulations are highly connected at the basin scale, several nations located in the northern Caribbean and ecoregional networks could persist independently of the larger basin‐wide metapopulation. Based on these results, we propose transnational neighborhoods for spiny lobster management. Our analysis suggests that the dynamics and management of those subpopulations neighborhoods are not intrinsically dependent on “upstream” connectivity even though current rates of upstream larval supply are very high.

    更新日期:2018-09-17
  • Management strategies to minimize the dredging impacts of coastal development on fish and fisheries
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-08
    Amelia S. Wenger; Christopher A. Rawson; Shaun Wilson; Stephen J. Newman; Michael J. Travers; Scott Atkinson; Nicola Browne; Douglas Clarke; Martial Depczynski; Paul L.A. Erftemeijer; Richard D. Evans; Jean‐Paul A. Hobbs; Jennifer L. McIlwain; Dianne L. McLean; Benjamin J. Saunders; Euan Harvey

    Accelerating coastal development and shipping activities dictate that dredging operations will intensify, increasing potential impacts to fishes. Coastal fishes have high economic, ecological, and conservation significance and there is a need for evidence‐based, quantitative guidelines on how to mitigate the impacts of dredging activities. We assess the potential risk from dredging to coastal fish and fisheries on a global scale. We then develop quantitative guidelines for two management strategies: threshold reference values and seasonal restrictions. Globally, threatened species and nearshore fisheries occur within close proximity to ports. We find that maintaining suspended sediment concentrations below 44 mg/L (15–121 bootstrapped CI) and for less than 24 hours would protect 95% of fishes from dredging‐induced mortality. Implementation of seasonal restrictions during peak periods of reproduction and recruitment could further protect species from dredging impacts. This study details the first evidence‐based defensible approach to minimize impacts to coastal fishes from dredging activities.

    更新日期:2018-09-17
  • Local human activities limit marine protection efficacy on Caribbean coral reefs
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-06
    Adam Suchley; Lorenzo Alvarez‐Filip

    Marine ecosystems globally have suffered habitat, biodiversity and function loss in response to human activity. Marine Protected Areas (MPAs) can limit extractive activities and enhance ecosystem resilience, but do not directly address external stressors. We surveyed 48 sites within seven MPAs and nearby unprotected areas to evaluate drivers of coral reef condition in the Mexican Caribbean. We found that local human activity limits protection effectiveness. Coral cover was positively related to protection characteristics, but was significantly lower at sites with elevated local human activity. Furthermore, we predict ongoing coastal development will reduce coral cover despite expanded protection within a regionwide MPA if an effective integrated coastal zone management strategy is not implemented. Policy makers must acknowledge the detrimental impact of uncontrolled coastal development and apply stringent construction and wastewater regulations in addition to marine protection.

    更新日期:2018-09-17
  • Slow treatment promotes control of harmful species by multiple agents
    Conserv. Lett. (IF 7.279) Pub Date : 2018-06-01
    Adam Lampert; Alan Hastings; James N. Sanchirico

    The management of harmful species, including invasive species, pests, parasites, and diseases, is a major, global challenge. Harmful species cause severe damage to ecosystems, biodiversity, agriculture, and human health. The control of harmful species is challenging and often requires cooperation among multiple agents, such as land‐owners, agencies, and countries. Agents may have incentives to contribute less, leaving more work for other agents, which can result in inefficient treatment. Here we present a dynamic game theory model and we show that slow treatment may promote a stable solution (Markovian Nash equilibrium) where all agents cooperate to remove the harmful species. The efficiency of this solution depends critically on the life history of the harmful species that determines the speed of optimal treatment. Furthermore, this cooperative equilibrium may coexist with other Nash equilibria, including one dictating no treatment of the harmful species, which implies that coordination among agents is critical for successful control.

    更新日期:2018-09-17
  • Using consumer preferences to characterize the trade of wild‐collected ornamental orchids in China
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-31
    Sophie J. Williams; Stephan W. Gale; Amy Hinsley; Jiangyun Gao; Freya A. V. St. John

    Overexploitation of wildlife for trade threatens taxa globally. Interest in demand‐side approaches to address this problem has grown but understanding of how consumer preferences shape demand remains limited. To quantify the role of consumer preferences for wild orchids in China's horticultural market, we used conjoint analysis to determine which attributes are preferred by orchid owners and nonowners in two socioeconomically contrasting areas of South China. Across all respondents, price was the most important attribute followed by flower color. While Xishuangbanna participants exhibited a slight preference for wild over cultivated plants, origin (wild/cultivated) was of minimal importance. We also measured awareness of orchid import regulations. Most did not recognize the CITES logo, and knowledge of import laws was significantly lower in Hong Kong than in Xishuangbanna. Our findings suggest that trade in wild ornamental orchids in South China is supply‐driven, and strengthened regulations might be effective in reducing overexploitation.

    更新日期:2018-09-17
  • Seagrass meadows support global fisheries production
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-21
    Richard K.F. Unsworth; Lina Mtwana Nordlund; Leanne C. Cullen‐Unsworth

    The significant role seagrass meadows play in supporting fisheries productivity and food security across the globe is not adequately reflected in the decisions made by authorities with statutory responsibility for their management. We provide a unique global analysis of three data sources to present the case for why seagrass meadows need targeted policy to recognize and protect their role in supporting fisheries production and food security. (1) Seagrass meadows provide valuable nursery habitat to over 1/5th of the world's largest 25 fisheries, including Walleye Pollock, the most landed species on the planet. (2) In complex small‐scale fisheries from around the world (poorly represented in fisheries statistics), we present evidence that many of those in proximity to seagrass are supported to a large degree by these habitats. (3) We reveal how intertidal fishing activity in seagrass is a global phenomenon, often directly supporting human livelihoods. Our study demonstrates that seagrasses should be recognized and managed to maintain and maximize their role in global fisheries production. The chasm that exists between coastal habitat conservation and fisheries management needs to be filled to maximize the chances of seagrass meadows supporting fisheries, so that they can continue to support human wellbeing.

    更新日期:2018-09-17
  • The elephant (head) in the room: A critical look at trophy hunting
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-09
    Chelsea Batavia; Michael Paul Nelson; Chris T. Darimont; Paul C. Paquet; William J. Ripple; Arian D. Wallach

    Trophy hunting has occupied a prominent position in recent scholarly literature and popular media. In the scientific conservation literature, researchers are generally supportive of or sympathetic to its usage as a source of monetary support for conservation. Although authors at times acknowledge that trophy hunting faces strong opposition from many members of the public, often for unspecified reasons associated with ethics, neither the nature nor the implications of these ethical concerns have been substantively addressed. We identify the central act of wildlife “trophy” taking as a potential source of ethical discomfort and public opposition. We highlight that trophy hunting entails a hunter paying a fee to kill an animal and claim its body or body parts as a trophy of conquest. Situating this practice in a Western cultural narrative of chauvinism, colonialism, and anthropocentrism, we argue trophy hunting is morally inappropriate. We suggest alternative strategies for conservation and community development should be explored and decisively ruled out as viable sources of support before the conservation community endorses trophy hunting. If wildlife conservation is broadly and inescapably dependent on the institution of trophy hunting, conservationists should accept the practice only with a due appreciation of tragedy, and proper remorse.

    更新日期:2018-09-17
  • The major barriers to evidence‐informed conservation policy and possible solutions
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-08
    David C. Rose; William J. Sutherland; Tatsuya Amano; Juan P. González‐Varo; Rebecca J. Robertson; Benno I. Simmons; Hannah S. Wauchope; Eszter Kovacs; América Paz Durán; Alice B. M. Vadrot; Weiling Wu; Maria P. Dias; Martina M. I. Di Fonzo; Sarah Ivory; Lucia Norris; Matheus Henrique Nunes; Tobias Ochieng Nyumba; Noa Steiner; Juliet Vickery; Nibedita Mukherjee

    Conservation policy decisions can suffer from a lack of evidence, hindering effective decision‐making. In nature conservation, studies investigating why policy is often not evidence‐informed have tended to focus on Western democracies, with relatively small samples. To understand global variation and challenges better, we established a global survey aimed at identifying top barriers and solutions to the use of conservation science in policy. This obtained the views of 758 people in policy, practice, and research positions from 68 countries across six languages. Here we show that, contrary to popular belief, there is agreement between groups about how to incorporate conservation science into policy, and there is thus room for optimism. Barriers related to the low priority of conservation were considered to be important, while mainstreaming conservation was proposed as a key solution. Therefore, priorities should focus on convincing the public of the importance of conservation as an issue, which will then influence policy‐makers to adopt pro‐environmental long‐term policies.

    更新日期:2018-09-17
  • Predicting the impacts of anthropogenic disturbances on marine populations
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-07
    Jacob Nabe‐Nielsen; Floris M van Beest; Volker Grimm; Richard M Sibly; Jonas Teilmann; Paul M Thompson

    Marine ecosystems are increasingly exposed to anthropogenic disturbances that cause animals to change behavior and move away from potential foraging grounds. Here we present a process‐based modeling framework for assessing population consequences of such sub‐lethal behavioral effects. It builds directly on how disturbances influence animal movements, foraging and energetics, and is therefore applicable to a wide range of species. To demonstrate the model we assess the impact of wind farm construction noise on the North Sea harbor porpoise population. Subsequently, we demonstrate how the model can be used to minimize population impacts of disturbances through spatial planning. Population models that build on the fundamental processes that determine animal fitness have a high predictive power in novel environments, making them ideal for marine management.

    更新日期:2018-09-17
  • The use, and usefulness, of spatial conservation prioritizations
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-03
    Samuel P. Sinclair; E.J. Milner‐Gulland; Robert J. Smith; Emma J. McIntosh; Hugh P. Possingham; Ans Vercammen; Andrew T. Knight

    Spatial conservation prioritization is used globally to guide decision making with the aim of delivering the best conservation gain per unit investment. However, despite many publications on the topic, the extent to which this approach is used by decision makers has been unclear. To investigate the degree to which prioritization has been adopted by practitioners to guide conservation implementation, we conducted an online survey, collecting data on the approaches used to develop prioritizations and the reported extent of translation to on‐the‐ground action. Using a cluster analysis, we identified two categories of prioritizations, those developed to advance the field (42% of responses) and those intended for implementation (58% of responses). Respondents reported 74% of the prioritizations intended for implementation had translated to on‐the‐ground action. Additionally, we identified strong collaboration between academics and practitioners in prioritization development, suggesting a bridging of the theory‐practice gap. We recommend continued collaboration and research into the effectiveness of prioritizations in delivering conservation impacts.

    更新日期:2018-09-17
  • Participation in planning and social networks increase social monitoring in community‐based conservation
    Conserv. Lett. (IF 7.279) Pub Date : 2018-04-27
    Steven M. Alexander; Graham Epstein; Örjan Bodin; Derek Armitage; Donovan Campbell

    Biodiversity conservation is often limited by inadequate investments in monitoring and enforcement. However, monitoring and enforcement problems may be overcome by encouraging resource users to develop, endorse, and subsequently enforce conservation regulations. In this article, we draw upon the literature on common‐pool resources and social networks to assess the impacts of participation and network ties on the decisions of fishers to voluntarily report rule violations in two Jamaican marine reserves. Data was collected using questionnaires administered through personal interviews with fishers (n = 277). The results suggest that local fishers are more likely to report illegal fishing if they had participated in conservation planning and if they are directly linked to community‐based wardens in information sharing networks. This research extends well‐established findings regarding the role and impacts of participation on biodiversity conservation by highlighting the importance of synergies between participation and social networks for voluntary monitoring of conservation regulations.

    更新日期:2018-09-17
  • Wicked conflict: Using wicked problem thinking for holistic management of conservation conflict
    Conserv. Lett. (IF 7.279) Pub Date : 2018-04-24
    Tom H.E. Mason; Chris R.J. Pollard; Deepthi Chimalakonda; Angela M. Guerrero; Catherine Kerr‐Smith; Sergio A.G. Milheiras; Michaela Roberts; Paul R. Ngafack; Nils Bunnefeld

    Conservation conflict is widespread, damaging, and has proved difficult to manage using conventional conservation approaches. Conflicts are often “wicked problems,” lacking clear solutions due to divergent values of stakeholders, and being embedded within wickedly complex environments. Drawing on the concept of wicked environmental problems could lead to management strategies better suited to tackling conflict. However, it is unclear whether managers are embracing ideas from the wicked problems concept. There is currently a lack of guidance for applying strategies to tackle particular wicked problems, such as conservation conflict. We explored the suitability of wicked problems‐inspired management, using eight contemporary conflict case studies. Conservation conflict was managed predominantly using conventional approaches suited to tackling single objectives in simple environments, rather than balancing competing objectives in complex environments. To deal with different characteristics of wickedness, we recommend that managers develop strategies combining distributed decision‐making, diverse opinions, pattern‐based predictions, trade‐off‐based objectives, and reporting of failures. Recent advances in conservation conflict research have focused on improving interactions among stakeholders. We believe that such stakeholder‐focused approaches would dovetail with the whole‐system focus of a wicked problems framework, allowing conservationists to move toward a holistic strategy for managing conservation conflict.

    更新日期:2018-09-17
  • Conservation technology: The next generation
    Conserv. Lett. (IF 7.279) Pub Date : 2018-04-18
    Oded Berger‐Tal; José J. Lahoz‐Monfort

    Attitudes among conservation biologists toward technological innovations and solutions have changed over the years from mistrusting and dismissive to widely accepting. However, the time has come for the conservation community to move from being technology consumers to become innovation leaders and to actively seek to create novel technologies to provide conservation tools and solutions. This challenging but critical mind‐set change requires thinking outside the box to establish and support the necessary bridges between the conservation community, technologists in both the public and the private sectors, and policy makers. The ingredients already exist, but success hinges on an open mind to new types of interactions, and bold but coordinated movements to nurture the organisational ecosystem in which such collaborations can thrive and be funded.

    更新日期:2018-09-17
  • Armed conflicts and wildlife decline: Challenges and recommendations for effective conservation policy in the Sahara‐Sahel
    Conserv. Lett. (IF 7.279) Pub Date : 2018-04-03
    José Carlos Brito; Sarah M. Durant; Nathalie Pettorelli; John Newby; Susan Canney; Walid Algadafi; Thomas Rabeil; Pierre‐André Crochet; Juan Manuel Pleguezuelos; Tim Wacher; Koen de Smet; Duarte Vasconcelos Gonçalves; Maria Joana Ferreira da Silva; Fernando Martínez‐Freiría; Teresa Abáigar; João Carlos Campos; Pierre Comizzoli; Soumía Fahd; Amina Fellous; Hamissou Halilou Malam Garba; Dieng Hamidou; Abdoulaye Harouna; Mahamat Hassan Hatcha; Abdullah Nagy; Teresa Luísa Silva; Andack Saad Sow; Cândida Gomes Vale; Zbyszek Boratyński; Hugo Rebelo; Sílvia B. Carvalho

    Increasing conflicts and social insecurity are expected to accelerate biodiversity decline and escalate illegal wildlife killing. Sahara‐Sahel megafauna has experienced recent continuous decline due to unsustainable hunting pressure. Here, we provide the best available data on distribution and population trends of threatened, large vertebrates, to illustrate how escalating regional conflict (565% growth since 2011) is hastening population decline in areas that were formerly refugia for megafauna. Without conservation action, the unique and iconic biodiversity of Earth's largest desert will be forever lost. We recommend: (1) establishing strong commitments for change in global attitude toward nature; (2) engraining a culture of environmental responsibility among all stakeholders; (3) fostering environmental awareness to drive societal change; (4) reinforcing regional security and firearms control; and (5) implementing local research and wildlife monitoring schemes. We identify relevant international partners needed to tackle these challenges and to make strong policy change for biodiversity conservation and regional stability.

    更新日期:2018-09-17
  • Adaptive comanagement to achieve climate‐ready fisheries
    Conserv. Lett. (IF 7.279) Pub Date : 2018-03-30
    Jono R. Wilson; Serena Lomonico; Darcy Bradley; Leila Sievanen; Tom Dempsey; Michael Bell; Skyli McAfee; Christopher Costello; Cody Szuwalski; Huff McGonigal; Sean Fitzgerald; Mary Gleason

    Climate‐related impacts to marine ecosystems threaten the biological, social, and economic resilience of the U.S. fishing industry. Changes in ocean conditions and variability in fisheries productivity have stimulated an effort to integrate climate information into fisheries science and management processes to inform more responsive decision‐making. However, institutional, capacity, and budget constraints within U.S. federal and state fisheries management agencies may hinder the potential to deliver climate‐ready strategies for many fisheries. We examine whether adaptive comanagement as a governance approach can enhance capacity and advance climate‐ready fisheries objectives. Adaptive comanagement may improve the quality of science and decision‐making needed to prepare for and respond to impacts of climate change in fisheries by taking advantage of skills, technology, and funding often not optimally utilized under the current governance system. We focus on the potential to improve information flows as a means to achieve climate‐ready fisheries via adaptive comanagement, but suggest that a greater level of partnership in the management process may be possible in the future after a period of formal experimentation and learning.

    更新日期:2018-09-17
  • Increasing disturbance demands new policies to conserve intact forest
    Conserv. Lett. (IF 7.279) Pub Date : 2018-03-26
    Jörg Müller; Reed F. Noss; Simon Thorn; Claus Bässler; Alexandro B. Leverkus; David Lindenmayer

    Ongoing controversy over logging the ancient Białowieża Forest in Poland symbolizes a global problem for policies and management of the increasing proportion of the earth's intact forest that is subject to postdisturbance logging. We review the extent of, and motivations for, postdisturbance logging in protected and unprotected forests globally. An unprecedented level of logging in protected areas and other places where green‐tree harvest would not normally occur is driven by economic interests and a desire for pest control. To avoid failure of global initiatives dedicated to reducing the loss of species, five key policy reforms are necessary: (1) salvage logging must be banned from protected areas; (2) forest planning should address altered disturbance regimes for all intact forests to ensure that significant areas remain undisturbed by logging; (3) new kinds of integrated analyses are needed to assess the potential economic benefits of salvage logging against its ecological, economic, and social costs; (4) global and regional maps of natural disturbance regimes should be created to guide better spatiotemporal planning of protected areas and undisturbed forests outside reserves; and (5) improved education and communication programs are needed to correct widely held misconceptions about natural disturbances.

    更新日期:2018-09-17
  • Time series analysis reveals synchrony and asynchrony between conflict management effort and increasing large grazing bird populations in northern Europe
    Conserv. Lett. (IF 7.279) Pub Date : 2018-03-25
    Jeremy J. Cusack; A. Brad Duthie; O. Sarobidy Rakotonarivo; Rocío A. Pozo; Tom H. E. Mason; Johan Månsson; Lovisa Nilsson; Ingunn M. Tombre; Einar Eythórsson; Jesper Madsen; Ayesha Tulloch; Richard D. Hearn; Steve Redpath; Nils Bunnefeld

    The management of conflicts between wildlife conservation and agricultural practices often involves the implementation of strategies aimed at reducing the cost of wildlife impacts on crops. Vital to the success of these strategies is the perception that changes in management efforts are synchronized relative to changes in impact levels, yet this expectation is never evaluated. We assess the level of synchrony between time series of population counts and management effort in the context of conflicts between agriculture and five populations of large grazing birds in northern Europe. We reveal inconsistent patterns of synchrony and asynchrony between changes in population counts and impact management effort relating to population harvesting, monetary payments, or scaring practices. This variation is likely due to differing management aims, the existence of lags between management decisions and population monitoring, and the inconsistent use of predictive models across case studies. Overall, our findings highlight the need for more adaptive and timely responses of management to changes in target species numbers so as not to unexpectedly increase social conflicts and jeopardize the status of wildlife populations.

    更新日期:2018-09-17
  • New policy directions for global pond conservation
    Conserv. Lett. (IF 7.279) Pub Date : 2018-03-23
    Matthew J. Hill; Christopher Hassall; Beat Oertli; Lenore Fahrig; Belinda J. Robson; Jeremy Biggs; Michael J. Samways; Nisikawa Usio; Noriko Takamura; Jagdish Krishnaswamy; Paul J. Wood

    Despite the existence of well‐established international environmental and nature conservation policies (e.g., the Ramsar Convention and Convention on Biological Diversity) ponds are largely missing from national and international legislation and policy frameworks. Ponds are among the most biodiverse and ecologically important freshwater habitats, and their value lies not only in individual ponds, but more importantly, in networks of ponds (pondscapes). Ponds make an important contribution to society through the ecosystem services they provide, with effective conservation of pondscapes essential to ensuring that these services are maintained. Implementation of current pond conservation through individual site designations does not function at the landscape scale, where ponds contribute most to biodiversity. Conservation and management of pondscapes should complement current national and international nature conservation and water policy/legislation, as pondscapes can provide species protection in landscapes where large‐scale traditional conservation areas cannot be established (e.g., urban or agricultural landscapes). We propose practical steps for the effective incorporation or enhancement of ponds within five policy areas: through open water sustainable urban drainage systems in urban planning, increased incentives in agrienvironment schemes, curriculum inclusion in education, emphasis on ecological scale in mitigation measures following anthropogenic developments, and the inclusion of pondscapes in conservation policy.

    更新日期:2018-09-17
  • Lions in the modern arena of CITES
    Conserv. Lett. (IF 7.279) Pub Date : 2018-02-21
    Hans Bauer; Kristin Nowell; Claudio Sillero‐Zubiri; David W. Macdonald

    Lions have often been discussed under the Convention on International Trade in Endangered Species of wild flora and fauna (CITES). While CITES decisions on species trade regimes are ostensibly based on science, species data are often inconclusive and political considerations inevitably determine outcomes. We present the context of lion conservation and the technical and political processes of CITES to illuminate how a failed uplisting proposal nonetheless resulted in an unprecedented trade restriction as well as conservation initiatives beyond the CITES trade function. We conclude on the limitations of science to guide future directions of CITES debates, leaving politics and ethics to shape decision making.

    更新日期:2018-09-17
  • Misconception and mismanagement of invasive species: The paradoxical case of an alien ungulate in Spain
    Conserv. Lett. (IF 7.279) Pub Date : 2018-02-15
    Jorge Cassinello

    Scientific evidence should dominate in any management decision dealing with alien species. It is also essential for all stakeholders to agree on the terminology used to avoid undesirable misinterpretations. A well‐known example is the use of the term “invasive,” which has two basic meanings, one as a biogeographic criterion and the other as an impact criterion. The aoudad (Ammotragus lervia) is a North African ungulate introduced in Spain, which was labeled “invasive” by Spanish authorities due to misreading of the term used by early studies. Indeed, to date, there are no conclusive empirical data showing negative effects of the aoudad on native flora and fauna. Recent studies have shown that its closest native ungulate, the Iberian ibex (Capra pyrenaica), has expanded throughout territories already occupied by the aoudad, without any apparent conflict. Aoudad diet selection studies also show them to be markedly grazers, so its role in the Mediterranean trophic network might be similar to that of extinct wild ungulates that fed in natural meadows, maintaining landscapes heterogeneous. New opportunities for its study are opening, particularly in Iberian semiarid lands. Unfortunately though, its current simplistic definition as an invasive species keeps in suspense its eventual eradication throughout the country.

    更新日期:2018-09-17
  • Maximizing biodiversity conservation and carbon stocking in restored tropical forests
    Conserv. Lett. (IF 7.279) Pub Date : 2018-04-16
    Pedro H.S. Brancalion; Carolina Bello; Robin L. Chazdon; Mauro Galetti; Pedro Jordano; Renato A.F. Lima; Aretha Medina; Marco Aurélio Pizo; J. Leighton Reid

    Assessing the conservation value of restoration plantings is critical to support the global forest landscape restoration movement. We assessed the implications of tree species selection in the restoration of Brazil's Atlantic Forest regarding carbon stocking and species conservation. This assessment was based on a comprehensive dataset of seedling acquisition records from 961 restoration projects, more than14 million seedlings, 192 forest remnants, and functional data from 1,223 tree species. We found that animal‐dispersed trees with larger seeds tend to have higher seed prices, yet are underrepresented in the seedlings acquired for restoration plantations. Compared to forest remnants, fruit supply potentially offered by the species acquired for restoration plantings is lower for birds, but higher for bats. Reduced abundance of medium‐ and/or large‐seeded, animal‐dispersed trees lead to declines of 2.8–10.6% in simulated potential carbon stocking. Given the uncertainty in these estimates, policy interventions may be needed to encourage greater representation of large‐seeded, animal‐dispersed tree species in Atlantic Forest restorations. These findings provide critical guidance for recovering tree functional diversity, plant‐frugivore mutualistic interactions, and carbon stocking in multi‐species tropical forest restoration plantings.

    更新日期:2018-07-14
  • When conservation research goes awry: A reply to Mascia and Mills (2018)
    Conserv. Lett. (IF 7.279) Pub Date : 2018-05-02
    Jens Friis Lund; Jevgeniy Bluwstein

    We raise two points of contention with “When conservation goes viral: The diffusion of innovative biodiversity conservation policies and practices” in which Mascia and Mills make a case for “diffusion of innovation theory” as a way of understanding how conservation interventions spread, drawing on case studies from Tanzania and the Pacific. First, the conceptualization of the spread of CBNRM as the uptake of innovative policies through diffusion depoliticizes CBNRM and ignores existing social science scholarship on Tanzanian CBNRM. Second, the article's central claim of “diffusion” builds on inflated statistics on the spread of CBNRM in Tanzania.

    更新日期:2018-05-02
Some contents have been Reproduced with permission of the American Chemical Society.
Some contents have been Reproduced by permission of The Royal Society of Chemistry.
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