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Satellite data and machine learning reveal the incidence of late frost defoliations on Iberian beech forests Ecol. Appl. (IF 4.248) Pub Date : 2021-01-10 José Miguel Olano; Ana I. García‐Cervigón; Gabriel Sangüesa‐Barreda; Vicente Rozas; Diego Muñoz‐Garachana; Miguel García‐Hidalgo; Ángel García‐Pedrero
Climate warming is driving an advance of leaf unfolding date in temperate deciduous forests, promoting longer growing seasons and higher carbon gains. However, an earlier leaf phenology also increases the risk of late frost defoliation (LFD) events. Compiling the spatiotemporal patterns of defoliations caused by spring frost events is critical to unveil whether the balance between the current advance
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The effects of population synchrony, life history, and access constraints on benefits from fishing portfolios Ecol. Appl. (IF 4.248) Pub Date : 2021-02-19 Kiva L. Oken; Daniel S. Holland; André E. Punt
Natural resources often exhibit large interannual fluctuations in productivity driven by shifting environmental conditions, and this translates to high variability in the revenue resource users earn. However, users can dampen this variability by harvesting a portfolio of resources. In the context of fisheries, this means targeting multiple populations, though the ability to actually build diverse fishing
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How does prescribed fire shape bird and plant communities in a temperate dry forest ecosystem? Ecol. Appl. (IF 4.248) Pub Date : 2021-02-19 Frederick W. Rainsford; Luke T. Kelly; Steve W.J. Leonard; Andrew F. Bennett
To mitigate the impact of severe wildfire on human society and the environment, prescribed fire is widely used in forest ecosystems to reduce fuel loads and limit fire spread. To avoid detrimental effects on conservation values, it is imperative to understand how prescribed fire affects taxa having a range of different adaptations to disturbance. Such studies will have greatest benefit if they extend
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A general model of the thermal constraints on the world’s most destructive locust, Schistocerca gregaria Ecol. Appl. (IF 4.248) Pub Date : 2021-02-19 Koutaro Ould Maeno; Cyril Piou; Michael R. Kearney; Sidi Ould Ely; Sid’Ahmed Ould Mohamed; Mohamed El Hacen Jaavar; Mohamed Abdallahi Ould Babah Ebbe
All terrestrial ectotherms are constrained to some degree by their thermal environment and the extent that they can behaviorally buffer variable thermal conditions. New biophysical modelling methods (NicheMapR) allow the calculation of the body temperature of thermoregulating animals anywhere in the world from first principles, but require detailed observational data for parameterization and testing
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Indigenous plants promote insect biodiversity in urban greenspaces Ecol. Appl. (IF 4.248) Pub Date : 2021-02-19 Luis Mata; Alan N. Andersen; Alejandra Morán‐Ordóñez; Amy K. Hahs; Anna Backstrom; Christopher D. Ives; Daniel Bickel; David Duncan; Estibaliz Palma; Freya Thomas; Kate Cranney; Ken Walker; Ian Shears; Linda Semeraro; Mallik Malipatil; Melinda L. Moir; Michaela Plein; Nick Porch; Peter A. Vesk; Tessa R. Smith; Yvonne Lynch
The contribution of urban greenspaces to support biodiversity and provide benefits for people is increasingly recognised. However, ongoing management practices favour vegetation oversimplification – often limiting greenspaces to lawns and tree canopy rather than multi‐layered vegetation that includes under‐ and midstorey – and the use of nonnative species. These practices hinder the potential of greenspaces
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Unifying atmospheric biology research for the U.S. scientific community Ecol. Appl. (IF 4.248) Pub Date : 2020-12-13 Claire G. Williams; David J. Smith
A global COVID‐19 pandemic, rising asthma and allergies, along with climate change impacting storm intensity and frequency, point to an urgent need to unify U.S. atmospheric biology research. To this end, we briefly define atmospheric biology, summarize its fragmented history, and then outline how to unify the field to provide benefits for the U.S. science community and its citizens. Atmospheric biology
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Quantitative assessment of fish larvae community composition in spawning areas using metabarcoding of bulk samples Ecol. Appl. (IF 4.248) Pub Date : 2021-01-08 Frances C. Ratcliffe; Tamsyn M. Uren Webster; Deiene Rodriguez‐Barreto; Richard O'Rorke; Carlos Garcia de Leaniz; Sofia Consuegra
Accurate assessment of larval community composition in spawning areas is essential for fisheries management and conservation but is often hampered by the cryptic nature of many larvae, which renders them difficult to identify morphologically. Metabarcoding is a rapid and cost‐effective method to monitor early life stages for management and environmental impact assessment purposes but its quantitative
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Recent bark beetle outbreaks influence wildfire severity in mixed‐conifer forests of the Sierra Nevada, California, USA Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 Rebecca B. Wayman; Hugh D. Safford
In temperate forests, elevated frequency of drought related disturbances will likely increase the incidence of interactions between disturbances such as bark beetle epidemics and wildfires. Our understanding of the influence of recent drought and insect‐induced tree mortality on wildfire severity has largely lacked information from forests adapted to frequent fire. A recent unprecedented tree mortality
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Chemical diversity rather than cultivar diversity predicts natural enemy control of herbivore pests Ecol. Appl. (IF 4.248) Pub Date : 2021-01-10 Kayleigh C. Hauri; Andrea E. Glassmire; William C. Wetzel
Cultivar mixtures have been studied for decades as a means for pest suppression. The literature, however, shows a large variability in outcomes, suggesting that we are unable to create mixtures that consistently suppress insect pests and attract natural enemies. A key gap in our understanding of how cultivar mixtures influence pest control is that few studies have examined the plant traits or mechanisms
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Evaluating a trait‐based approach to compare natural enemy and pest communities in agroforestry vs. arable systems Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 Tom Staton; Richard J. Walters; Jo Smith; Tom D. Breeze; Robbie D. Girling
Diversified farming systems, for example those that incorporate agroforestry elements, have been proposed as a solution that could maintain and improve multiple ecosystem services. However, habitat diversification in and around arable fields has complex and inconsistent effects on invertebrate crop pests and their natural enemies. This hinders the development of policy recommendations to promote the
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Linking land use patterns and pest outbreaks in Bt maize Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 Coy R. St. Clair; Aaron J. Gassmann
Western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a major pest of maize in the United States and is an invasive pest in Europe. Maize is the only agricultural crop on which western corn rootworm larvae can survive and this insect requires two consecutive years of maize cultivation to complete its life cycle. Transgenic maize producing insecticidal proteins
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Managing ecosystems in a sea of uncertainty: invasive species management and assisted colonizations Ecol. Appl. (IF 4.248) Pub Date : 2021-02-17 Anthony R. Rendall; Duncan R. Sutherland; Christopher M. Baker; Ben Raymond; Raylene Cooke; John G. White
Managing ecosystems in the face of complex species interactions, and the associated uncertainty, presents a considerable ecological challenge. Altering those interactions via actions such as invasive species management or conservation translocations can result in unintended consequences, supporting the need to be able to make more informed decisions in the face of this uncertainty. We demonstrate the
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Political economy of renewable resource federalism Ecol. Appl. (IF 4.248) Pub Date : 2020-12-15 James N. Sanchirico; Julie C. Blackwood; Ben Fitzpatrick; David M. Kling; Suzanne Lenhart; Michael G. Neubert; Katriona Shea; Charles B. Sims; Michael R. Springborn
The authority to manage natural capital often follows political boundaries rather than ecological. This mismatch can lead to unsustainable outcomes, as spillovers from one management area to the next may create adverse incentives for local decision making, even within a single country. At the same time, one‐size‐fits‐all approaches of federal (centralized) authority can fail to respond to state (decentralized)
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Effects of postfire climate and seed availability on postfire conifer regeneration Ecol. Appl. (IF 4.248) Pub Date : 2020-12-16 Joseph A. E. Stewart; Phillip J. van Mantgem; Derek J. N. Young; Kristen L. Shive; Haiganoush K. Preisler; Adrian J. Das; Nathan L. Stephenson; Jon E. Keeley; Hugh D. Safford; Micah C. Wright; Kevin R. Welch; James H. Thorne
Large, severe fires are becoming more frequent in many forest types across the western United States and have resulted in tree mortality across tens of thousands of hectares. Conifer regeneration in these areas is limited because seeds must travel long distances to reach the interior of large burned patches and establishment is jeopardized by increasingly hot and dry conditions. To better inform postfire
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Predator‐ and competitor‐induced responses in amphibian populations that evolved different levels of pesticide tolerance Ecol. Appl. (IF 4.248) Pub Date : 2021-02-15 Devin K. Jones; Jessica Hua; Brian M. Mattes; Rickey D. Cothran; Jason T. Hoverman; Rick A. Relyea
Exposure to agrochemicals can drive rapid phenotypic and genetic changes in exposed populations. For instance, amphibian populations living far from agriculture (a proxy for agrochemical exposure) exhibit low pesticide tolerance, but they can be induced to possess high tolerance following a sublethal pesticide exposure. In contrast, amphibian populations close to agriculture exhibit high, constitutive
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Improving the ability of a BACI design to detect impacts within a kelp‐forest community Ecol. Appl. (IF 4.248) Pub Date : 2021-02-15 A. Rassweiler; D.K. Okamoto; D.C. Reed; D.J. Kushner; D.M. Schroeder; K.D. Lafferty
Distinguishing between human impacts and natural variation in abundance remains difficult because most species exhibit complex patterns of variation in space and time. When ecological monitoring data are available, a Before‐After‐Control‐Impact (BACI) analysis can control for natural spatial and temporal variation to better identify an impact and estimate its magnitude. However, populations with limited
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Short‐term effects of wildfire in boreal peatlands: Does fire mitigate the linear footprint of oil and gas exploration? Ecol. Appl. (IF 4.248) Pub Date : 2020-12-17 Jaime Pinzon; Anna Dabros; Federico Riva; James R. N. Glasier
Exploration practices for oil sands developments in the boreal forest of western Canada create a network of thousands of kilometers of linear features, particularly seismic lines that dissect these forests posing significant environmental challenges. As wildfire is one of the prevalent stand‐replacing natural disturbances in the Canadian boreal forest, it is an important driver of environmental change
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Estimating social‐ecological resilience: fire management futures in the Sonoran Desert Ecol. Appl. (IF 4.248) Pub Date : 2021-02-12 Clare E. Aslan; Manette Sandor; Martha Sample; Sasha Stortz; Sara Souther; Carrie Levine; Leah Samberg; Miranda Gray; Brett Dickson
Resilience quantifies the ability of a system to remain in or return to its current state following disturbance. Due to inconsistent terminology and usage of resilience frameworks, quantitative resilience studies are challenging, and resilience is often treated as an abstract concept rather than a measurable system characteristic. We used a novel, spatially‐explicit stakeholder engagement process to
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Alpine treeline ecotones are potential refugia for a montane pine species threatened by bark beetle outbreaks Ecol. Appl. (IF 4.248) Pub Date : 2020-12-08 Colin T. Maher; Constance I. Millar; David L. R. Affleck; Robert E. Keane; Anna Sala; Claudine Tobalske; Andrew J. Larson; Cara R. Nelson
Warming‐induced mountain pine beetle (Dendroctonus ponderosae; MPB) outbreaks have caused extensive mortality of whitebark pine (Pinus albicaulis; WBP) throughout the species’ range. In the highest mountains where WBP occur, they cross alpine treeline ecotones (ATEs) where growth forms transition from trees to shrub‐like krummholz, some of which survived recent MPB outbreaks. This observation motivated
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Local connections and the larval competency strongly influence marine metapopulation persistence Ecol. Appl. (IF 4.248) Pub Date : 2021-02-10 Giorgia Cecino; Eric A. Treml
The relationship between metapopulation stability and connectivity has long been investigated in ecology, however, most of these studies are focussed on theoretical species and habitat networks, having limited ability to capture the complexity of real‐world metapopulations. Network analysis became more important in modelling connectivity, but it is still uncertain which networks metrics are reliable
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Matching methods to quantify wildfire effects on forest carbon mass in the U.S. Pacific Northwest Ecol. Appl. (IF 4.248) Pub Date : 2020-12-25 Hyeyoung Woo; Bianca N. I. Eskelson; Vicente J. Monleon
Forest wildfires consume and redistribute carbon within forest carbon pools. Because the incidence of wildfires is unpredictable, quantifying wildfire effects is challenging due to the lack of prefire data or controls from experiments over a large landscape. We explored a quasi‐experimental method, propensity score matching, to estimate wildfire effects on aboveground forest woody carbon mass in Washington
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Water storage decisions will determine the distribution and persistence of imperiled river fishes Ecol. Appl. (IF 4.248) Pub Date : 2020-12-17 Kimberly L. Dibble; Charles B. Yackulic; Theodore A. Kennedy; Kevin R. Bestgen; John C. Schmidt
Managing the world’s freshwater supply to meet societal and environmental needs in a changing climate is one of the biggest challenges for the 21st century. Dams provide water security; however, the allocation of dwindling water supply among reservoirs could exacerbate or ameliorate the effects of climate change on aquatic communities. Here, we show that the relative sensitivity of river thermal regimes
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Alignment of ordinal and quantitative species abundance and size indices for the detection of shifting baseline syndrome Ecol. Appl. (IF 4.248) Pub Date : 2021-02-09 Phil O’B. Lyver; Puke Timoti; Sarah J. Richardson; Andrew M. Gormley
Loss of knowledge about historical environmental conditions and species’ abundances threatens how new generations potentially perceive their environment and take action. The inter‐generational shift in perceptions of environmental thresholds is a phenomenon frequently termed, shifting baseline syndrome (SBS). The goals of this study were (i) to determine relationships between ordinal scores (e.g. few
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Rich and abundant spider communities result from enhanced web capture breadth and reduced overlap in urban greenspaces Ecol. Appl. (IF 4.248) Pub Date : 2020-12-23 Mary M. Gardiner; Yvan A. Delgado de la flor; Denisha M. Parker; James D. Harwood
Urbanization is a key contributor to biodiversity loss, but evidence is mounting that cities can support rich arthropod communities, including rare and threatened species. Furthermore, greenspace is growing within hundreds of “shrinking cities” that have lost population resulting in a need to demolish an overabundance of infrastructure creating vacant land. Efforts are underway to transform vacant
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Time‐to‐detection occupancy methods: performance and utility for improving efficiency of surveys Ecol. Appl. (IF 4.248) Pub Date : 2020-11-25 Brian J. Halstead; Jonathan P. Rose; Patrick M. Kleeman
Occupancy methods propelled the quantitative study of species distributions forward by separating the observation process, or the imperfect detectability of species, from the ecological processes of interest governing species distributions. Occupancy studies come at a cost, however: the collection of additional data to account for nondetections at sites where the species is present. The most common
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Temporal invariance of social‐ecological catchments Ecol. Appl. (IF 4.248) Pub Date : 2020-12-08 Mark A. Kaemingk; Christine N. Bender; Christopher J. Chizinski; Aaron J. Bunch; Kevin L. Pope
Natural resources such as waterbodies, public parks, and wildlife refuges attract people from varying distances on the landscape, creating “social‐ecological catchments.” Catchments have provided great utility for understanding physical and social relationships within specific disciplines. Yet, catchments are rarely used across disciplines, such as its application to understand complex spatiotemporal
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Estimating individual level plant traits at scale Ecol. Appl. (IF 4.248) Pub Date : 2021-01-22 Sergio Marconi; Sarah J. Graves; Ben.G. Weinstein; Stephanie Bohlman; Ethan P. White
Functional ecology has increasingly focused on describing ecological communities based on their traits (measurable features affecting individuals fitness and performance). Analyzing trait distributions within and among forests could significantly improve understanding of community composition and ecosystem function. Historically, data on trait distributions are generated by (1) collecting a small number
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Spatial optimization of invasive species control informed by management practices Ecol. Appl. (IF 4.248) Pub Date : 2020-11-20 Makoto Nishimoto; Tadashi Miyashita; Hiroyuki Yokomizo; Hiroyuki Matsuda; Takeshi Imazu; Hiroo Takahashi; Masami Hasegawa; Keita Fukasawa
Optimization of spatial resource allocation is crucial for the successful control of invasive species under a limited budget but requires labor‐intensive surveys to estimate population parameters. In this study, we devised a novel framework for the spatially explicit optimization of capture effort allocation using state‐space population models from past capture records. We applied it to a control program
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Impacts of COVID‐19 on ecology and evolutionary biology faculty in the United States Ecol. Appl. (IF 4.248) Pub Date : 2020-11-23 Lise M. Aubry; Theresa M. Laverty; Zhao Ma
We surveyed ecologists and evolutionary biologists in American universities to understand how they are coping with the COVID‐19 pandemic. Female respondents, assistant professors, and those who care for at least one child or teenager, were significantly more dissatisfied with their work–life balance during this pandemic than others, and further expected these negative impacts to be long lived. Online
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All is fish that comes to the net: metabarcoding for rapid fisheries catch assessment Ecol. Appl. (IF 4.248) Pub Date : 2020-12-08 Tommaso Russo; Giulia Maiello; Lorenzo Talarico; Charles Baillie; Giuliano Colosimo; Lorenzo D'Andrea; Federico Di Maio; Fabio Fiorentino; Simone Franceschini; Germana Garofalo; Danilo Scannella; Stefano Cataudella; Stefano Mariani
Monitoring marine resource exploitation is a key activity in fisheries science and biodiversity conservation. Since research surveys are time consuming and costly, fishery‐dependent data (i.e., derived directly from fishing vessels) are increasingly credited with a key role in expanding the reach of ocean monitoring. Fishing vessels may be seen as widely ranging data‐collecting platforms, which could
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Demographic modeling to fine‐tune conservation targets: importance of pre‐adults for the decline of an endangered raptor Ecol. Appl. (IF 4.248) Pub Date : 2020-11-24 Fabrizio Sergio; Giacomo Tavecchia; Julio Blas; Alessandro Tanferna; Fernando Hiraldo
Large, long‐lived species with slow life histories and protracted pre‐breeding stages are particularly susceptible to declines and extinction, often for unknown causes. Here, we show how demographic modeling of a medium‐sized raptor, the Red Kite Milvus milvus, can aid to refocus conservation research and attention on the most likely mechanisms driving its decline. Red Kites’ survival and reproduction
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Erratum Ecol. Appl. (IF 4.248) Pub Date : 2021-01-18
Errata for Latif, Q. S., R. L. Truex, R. A. Sparks, and D. C. Pavlacky, Jr. 2020. Dry conifer forest restoration benefits Colorado Front Range avian communities. Ecological Applications 30:e02142. The authors wish to report three errors. The first error concerns the way they calculated species richness with community occupancy models. This error does not affect the results but does require updating
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Level and spatial pattern of overstory retention impose tradeoffs for regenerating and retained trees Ecol. Appl. (IF 4.248) Pub Date : 2021-01-13 Charles B. Halpern; Lauren S. Urgenson
Variable retention (VR) has been adopted globally as an alternative to more intensive forms of regeneration harvest. By retaining live trees within harvest units, VR seeks balance among the commodity, ecological, and aesthetic values of managed forests. Achieving these multiple, often competing objectives requires an understanding of how level and spatial pattern of retention shape the abundance, growth
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Corridors through time: Does resource continuity impact pollinator communities, populations, and individuals? Ecol. Appl. (IF 4.248) Pub Date : 2020-11-13 Charlie C. Nicholson; Jen J.‐M. Hayes; Samantha Connolly; Taylor H. Ricketts
Spatial aspects of connectivity have received considerable attention from ecologists and conservationists, yet temporal connectivity, the periodic linking of habitats, plays an equally important, but largely overlooked role. Different biological and biophysical attributes of ecosystems underpin temporal connectivity, but here we focus on resource continuity, the uninterrupted availability of foraging
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Satellite‐based habitat monitoring reveals long‐term dynamics of deer habitat in response to forest disturbances Ecol. Appl. (IF 4.248) Pub Date : 2020-12-04 Julian Oeser; Marco Heurich; Cornelius Senf; Dirk Pflugmacher; Tobias Kuemmerle
Disturbances play a key role in driving forest ecosystem dynamics, but how disturbances shape wildlife habitat across space and time often remains unclear. A major reason for this is a lack of information about changes in habitat suitability across large areas and longer time periods. Here, we use a novel approach based on Landsat satellite image time series to map seasonal habitat suitability annually
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Response of lion demography and dynamics to the loss of preferred larger prey Ecol. Appl. (IF 4.248) Pub Date : 2021-01-12 Milan A. Vinks; Scott Creel; Paul Schuette; Matthew Becker; Elias Rosenblatt; Carolyn Sanguinetti; Kambwiri Banda; Ben Goodheart; Kim Young‐Overton; Xia Stevens; Clive Chifunte; Neil Midlane; Chuma Simukonda
Large carnivores are experiencing range contraction and population declines globally. Prey depletion due to illegal offtake is considered a major contributor, but the effects of prey depletion on large carnivore demography are rarely tested. We measured African lion density and tested the factors that affect survival using mark‐recapture models fit to six years of data from known individuals in Kafue
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Multi‐species occupancy modeling provides novel insights into amphibian metacommunity structure and wetland restoration Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 Andrew J. Hamer; Dénes Schmera; Michael J. Mahony
A fundamental goal of community ecology is to understand species‐habitat relationships and how they shape metacommunity structure. Recent advances in occupancy modeling enable habitat relationships to be assessed for both common and rare species within metacommunities using multi‐species occupancy models (MSOM). These models account for imperfect species detection and offer considerable advantages
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Soil organic carbon is not just for soil scientists: measurement recommendations for diverse practitioners Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 S.A. Billings; K. Lajtha; A. Malhotra; A.A. Berhe; M.‐A. de Graaff; S. Earl; J. Fraterrigo; K. Georgiou; S. Grandy; S.E. Hobbie; J.A.M. Moore; K. Nadelhoffer; D. Pierson; C. Rasmussen; W.L. Silver; B.N. Sulman; S. Weintraub; W. Wieder
Soil organic carbon (SOC) regulates terrestrial ecosystem functioning, provides diverse energy sources for soil microorganisms, governs soil structure, and regulates the availability of organically‐bound nutrients. Investigators in increasingly diverse disciplines recognize how quantifying SOC attributes can provide insight about ecological states and processes. Today, multiple research networks collect
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Fractal dimension of tree crowns explains species functional‐trait responses to urban environments at different scales Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 Georgios Arseniou; David W. MacFarlane
The evolution of form and function of trees of diverse species has taken place over hundreds of millions of years, while urban environments are relatively new on an evolutionary time scale, representing a novel set of environmental constraints for trees to respond to. It is important to understand how trees of different species, planted in these anthropogenically‐structured urban ecosystems, are responding
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Life‐history theory provides a framework for detecting resource limitation: a test of the Nutritional Buffer Hypothesis Ecol. Appl. (IF 4.248) Pub Date : 2021-01-11 Brett R. Jesmer; Matthew J. Kauffman; Alyson B. Courtemanch; Steve Kilpatrick; Timothy Thomas; Jeff Yost; Kevin L. Monteith; Jacob R. Goheen
For ungulates and other long‐lived species, life‐history theory predicts that nutritional reserves are allocated to reproduction in a state‐dependent manner because survival is highly conserved. Further, as per‐capita food abundance and nutritional reserves decline (i.e., density‐dependence intensifies), reproduction and recruitment become increasingly sensitive to weather. Thus, the degree to which
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An approach to quantify climate–productivity relationships: an example from a widespread Nothofagus forest Ecol. Appl. (IF 4.248) Pub Date : 2021-01-10 Christian Salas‐Eljatib
Unique combinations of geographic and environmental conditions make quantifying the importance of factors that influence forest productivity difficult. I aimed to model the height growth of dominant Nothofagus alpina trees in temperate forests of Chile, as a proxy for forest productivity, by building a dynamic model that accounts for topography, habitat type, and climate conditions. Using stem analysis
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Seedling diversity in actively and passively restored tropical forest understories Ecol. Appl. (IF 4.248) Pub Date : 2021-01-09 Jarrah Wills; John Herbohn; Jessie Wells; Maria Opelia Maranguit Moreno; Angela Ferraren; Jennifer Firn
Alternative methods for restoring tropical forests influence the ecological processes that shape recruitment of understorey species. In turn, the traits of species recruited will influence the ecological processes the forests provide now and over the long‐term. We assess the phylogenetic and functional structure of seedlings beneath monoculture plantations, mixed‐species plantations (both active restoration)
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A Bayesian Dirichlet process community occupancy model to estimate community structure and species similarity Ecol. Appl. (IF 4.248) Pub Date : 2020-11-03 Rahel Sollmann; Mitchell Joseph Eaton; William A. Link; Paul Mulondo; Samuel Ayebare; Sarah Prinsloo; Andrew J. Plumptre; Devin S. Johnson
Community occupancy models estimate species‐specific parameters while sharing information across species by treating parameters as sampled from a common distribution. When communities consist of discrete groups, shrinkage of estimates toward the community mean can mask differences among groups. Infinite‐mixture models using a Dirichlet process (DP) distribution, in which the number of latent groups
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Landscape‐dependent effects of varietal mixtures on insect pest control and implications for farmer profits Ecol. Appl. (IF 4.248) Pub Date : 2020-10-29 Lauren D. Snyder; Miguel I. Gómez; Erika L. Mudrak; Alison G. Power
Intraspecific plant diversity can significantly impact insect herbivore populations in natural systems. Yet, its role as an insect pest control strategy in agriculture has received less attention, and little is known about which crop traits are important to herbivores in different landscape contexts. Moreover, empirical economic analyses on the cost‐effectiveness of varietal mixtures are lacking. We
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Viral infection can reduce the net nitrogen inputs of legume break crops and cover crops Ecol. Appl. (IF 4.248) Pub Date : 2020-10-22 Katherine M. Marchetto; Alison G. Power
Legumes are used in crop rotations by both large‐scale and smallholder farmers alike to increase soil fertility, especially before high‐nitrogen‐demanding crops such as corn (maize). Legume crop residues and green manures are rich in nitrogen due to mutualistic rhizobia, bacteria that live in their roots and convert atmospheric nitrogen into a biologically available form. Growers can obtain recommendations
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Environment shapes the spatial organization of tree diversity in fragmented forests across a human‐modified landscape Ecol. Appl. (IF 4.248) Pub Date : 2020-10-24 Meghna Krishnadas; Anand M. Osuri
Biodiversity patterns are shaped by the combination of dispersal, environment, and stochasticity, but how the influence of these drivers changes in fragmented habitats remains poorly understood. We examined patterns and relationships among total (γ) and site‐level (α) diversity, and site‐to‐site variation in composition (β‐diversity) of tree communities in structurally contiguous and fragmented tropical
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Landscape‐scale differences among cities alter common species’ responses to urbanization Ecol. Appl. (IF 4.248) Pub Date : 2020-11-03 Mason Fidino; Travis Gallo; Elizabeth W. Lehrer; Maureen H. Murray; Cria A. M. Kay; Heather A. Sander; Brandon MacDougall; Carmen M. Salsbury; Travis J. Ryan; Julia L. Angstmann; J. Amy Belaire; Barbara Dugelby; Christopher J. Schell; Theodore Stankowich; Max Amaya; David Drake; Sheryl H. Hursh; Adam A. Ahlers; Jacque Williamson; Laurel M. Hartley; Amanda J. Zellmer; Kelly Simon; Seth B. Magle
Understanding how biodiversity responds to urbanization is challenging, due in part to the single‐city focus of most urban ecological research. Here, we delineate continent‐scale patterns in urban species assemblages by leveraging data from a multi‐city camera trap survey and quantify how differences in greenspace availability and average housing density among 10 North American cities relate to the
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Comment on: Grazing disturbance promotes exotic annual grasses by degrading soil biocrust communities Ecol. Appl. (IF 4.248) Pub Date : 2020-12-15 Rory C. O’Connor; Matthew J. Germino
Biological soil crusts (hereafter, biocrusts) are a critical component of many semiarid ecosystems because they seriously affect seed germination, soil stability, fertility, and hydrology (Belnap 2003). These factors are central to ecosystem recovery following soil‐plant disturbances such as increased wildfire or livestock grazing. Livestock grazing is the primary land use of semiarid landscapes globally
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Management of cover crops in temperate climates influences soil organic carbon stocks: a meta‐analysis Ecol. Appl. (IF 4.248) Pub Date : 2020-12-15 Shelby C. McClelland; Keith Paustian; Meagan E. Schipanski
Increasing the quantity and quality of plant biomass production in space and time can improve the capacity of agroecosystems to capture and store atmospheric carbon (C) in the soil. Cover cropping is a key practice to increase system net primary productivity (NPP) and increase the quantity of high‐quality plant residues available for integration into soil organic matter (SOM). Cover crop management
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Comment on: Inorganic N addition replaces N supplied to switchgrass (Panicum virgatum) by arbuscular mycorrhizal fungi Ecol. Appl. (IF 4.248) Pub Date : 2020-12-05 Woo‐Jung Choi; Scott X. Chang; Jin‐Hyeob Kwak
In a recent paper, Jach‐Smith and Jackson (2020) used the 15N natural abundance (δ15N) of two sources of nitrogen (N), available soil N and N in AMF, and 15N mass balance equations to calculate the amount of N transferred by arbuscular mycorrhizal fungi (AMF) to switchgrass (Panicum virgatum L.), a perennial grass (the host plant) used in a bioenergy system in the United States. The study was conducted
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Exotic species drive patterns of plant species diversity in 93 restored tallgrass prairies Ecol. Appl. (IF 4.248) Pub Date : 2020-11-03 Andrew D. Kaul; Brian J. Wilsey
A primary goal of restoration ecology is to understand the factors that generate variability in species diversity and composition among restorations. Plant communities may assemble deterministically toward a common community type, or they may assemble stochastically, ending differently because of weather conditions during establishment, soil legacy effects, or exotic species propagule pressure. To
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Testing transgenerational transfer of personality in managed wildlife populations: a house mouse control experiment Ecol. Appl. (IF 4.248) Pub Date : 2020-11-01 Kyla C. Johnstone; Clare McArthur; Peter B. Banks
Pest species control operations are most effective if every individual in a population is targeted. Yet, individual personality drives variation in animal responses to devices such as traps and baits. Failing to account for differences in behavior during control operations may drive a selective removal, resulting in residual animals with biased expressions of personality. If these biased traits are
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Evaluating long‐term success in grassland restoration: an ecosystem multifunctionality approach Ecol. Appl. (IF 4.248) Pub Date : 2020-12-04 Monika Carol Resch; Martin Schütz; Nina Buchmann; Beat Frey; Ulrich Graf; Wim H. van der Putten; Stephan Zimmermann; Anita C. Risch
It is generally assumed that restoring biodiversity will enhance diversity and ecosystem functioning. However, to date, it has rarely been evaluated whether and how restoration efforts manage to rebuild biodiversity and multiple ecosystem functions (ecosystem multifunctionality) simultaneously. Here, we quantified how three restoration methods of increasing intervention intensity (harvest only < topsoil
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Integrating environmental justice into applied ecology research: Somebody else’s problem? Ecol. Appl. (IF 4.248) Pub Date : 2020-11-10 Gillian Bowser; Carmen R. Cid
Environmental injustice can be expressed through lack of access to resources, unequal exposure to toxins, and limited access to knowledge about the unsustainable environmental practices that impact communities (Bullard 2018). The ecological processes that contribute to the “perfect storm” of conditions that create environmental injustices are well documented in applied ecology scholarship; yet the
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Potential regional declines in species richness of tomato pollinators in North America under climate change Ecol. Appl. (IF 4.248) Pub Date : 2020-11-11 Luis Carrasco; Monica Papeş; Ellie N. Lochner; Brandyn C. Ruiz; Abigail G. Williams; Gregory J. Wiggins
About 70% of the world's main crops depend on insect pollination. Climate change is already affecting the abundance and distribution of insects, which could cause geographical mismatches between crops and their pollinators. Crops that rely primarily on wild pollinators (e.g., crops that cannot be effectively pollinated by commercial colonies of honey bees) could be particularly in jeopardy. However
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Ongoing declines of woodland birds: Are restoration plantings making a difference? Ecol. Appl. (IF 4.248) Pub Date : 2020-11-25 Donna J. Belder; Jennifer C. Pierson; Ashwin C. Rudder; David B. Lindenmayer
Woodland birds are a species assemblage of conservation concern, and their persistence in fragmented agricultural landscapes is dependent on both the preservation of existing woodland remnants and the implementation of restoration plantings. However, little is known about the habitat‐use and persistence of birds in fragmented agricultural landscapes. We present a detailed, population‐oriented study
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Tracking rates of postfire conifer regeneration vs. deciduous vegetation recovery across the western United States Ecol. Appl. (IF 4.248) Pub Date : 2020-10-16 Melanie K. Vanderhoof; Todd J. Hawbaker; Andrea Ku; Kyle Merriam; Erin Berryman; Megan Cattau
Postfire shifts in vegetation composition will have broad ecological impacts. However, information characterizing postfire recovery patterns and their drivers are lacking over large spatial extents. In this analysis, we used Landsat imagery collected when snow cover (SCS) was present, in combination with growing season (GS) imagery, to distinguish evergreen vegetation from deciduous vegetation. We
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Landscape‐scale restoration minimizes tree growth vulnerability to 21st century drought in a dry forest Ecol. Appl. (IF 4.248) Pub Date : 2020-10-17 John B. Bradford; Caitlin M. Andrews; Marcos D. Robles; Lisa A. McCauley; Travis J. Woolley; Robert M. Marshall
Increasing aridity is a challenge for forest managers and reducing stand density to minimize competition is a recognized strategy to mitigate drought impacts on growth. In many dry forests, the most widespread and common forest management programs currently being implemented focus on restoration of historical stand structures, primarily to minimize fire risk and enhance watershed function. The implications
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Evaluating multiple historical climate products in ecological models under current and projected temperatures Ecol. Appl. (IF 4.248) Pub Date : 2020-10-23 Giancarlo Sadoti; Stephanie A. McAfee; E. Fleur Nicklen; Pamela J. Sousanes; Carl A. Roland
Gridded historical climate products (GHCPs) are employed with increasing frequency when modeling ecological phenomena across large scales and predicting ecological responses to projected climate changes. Concurrently, there is an increasing acknowledgement of the need to account for uncertainty when employing climate projections from ensembles of global circulation models (GCMs) and emissions scenarios
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