Areas beyond national jurisdiction, or the high seas, are vital to life on Earth. However, the conservation of these areas, for example, through area-based management tools (ABMTs), is challenging, particularly when accounting for global change. Using decision science, integrated population models, and a Critically Endangered seabird (Kuaka; Pelecanoides whenuahouensis) as a case study, we evaluated

Reeves's pheasant feathers are used to make headgears for the Chinese opera—Xiqu; however, this posed a considerable threat to the bird's population before it was banned from hunting/trade. It is unclear whether Xiqu-troupes currently use feathers from wild or captive breeding; therefore, we investigated their source and scale of feather utilization. Through interviews, we clarified the current status

The pelagic ocean is Earth's largest habitat, constituting 99% of the global biosphere by volume, directly or indirectly supporting most marine life, and supplying the majority of fish consumed by humans (Game et al., 2009; Pauly et al., 2002). However, the world's pelagic fauna is globally declining largely as a result of unsustainable fishing (Pauly & Zeller, 2016). Industrial fishing has reduced

Variation in the legal status and management of wolves (Canis lupus) across EU Member States provides a good opportunity to test the effectiveness of different practices to reduce livestock losses. This opportunity for testing is particularly useful for lethal interventions, as they are among the most controversial actions within the large carnivore management toolbox. We aimed to test a conservation

World forests face many threats, including wildfires, with tremendous ecological, social, and economic implications. Mediterranean ecosystems have evolved in the presence of fire, but changes to fire regimes associated with other global changes pose new challenges to postfire community regeneration. Forest regeneration largely depends on plant adaptations to survive wildfires or on the recolonization

Negative landscape-scale fragmentation effects are often inferred from negative patch-scale edge effects. I tested this cross-scale extrapolation using two evaluations. First, I searched for studies that estimated the direction of both a patch-scale edge effect and a landscape-scale fragmentation effect. The directions were concordant and discordant in 55% and 45% of cases, respectively. Second, I

1 INTRODUCTION The Kunming-Montreal Global Biodiversity Framework (GBF) envisions harmonious coexistence with nature. Realizing this vision depends on effectively monitoring progress toward the GBF's goals and targets. However, the GBF's current monitoring framework (Convention on Biological Diversity, 2022) has fundamental gaps. Of its 27 goals and targets, only nine have a complete set of headline

Policy instruments—such as regulation, financial incentives, and agricultural extension—are commonly applied by governments to promote sustainable agricultural practices and tackle ecosystem degradation. Despite substantial investment, little data are available to gauge the impact of evolving policy mixes. We constructed a Bayesian network model to explore relationships between policy instruments,

Biological invasions represent one of the major threats to the world's biodiversity. National and international efforts are taken to address the complexity and dynamic of invasions in legislation. However, based on the Polish experience of implementing the European Union's regulation on invasive alien species (IAS), we suggest that an unclear and disorganized process of law implementation results in

In the past two decades, drifting fish aggregation devices (FADs) have revolutionized pelagic fisheries, and are now responsible for the majority of tuna purse seine catches. Here, we argue that by taking advantage of the same proven aggregative properties, FADs could be used to enhance the benefits provided by blue water marine protected areas (MPAs). Using models of commercially targeted fish populations

Establishing large networks of fully protected marine protected areas (MPAs) is challenging because of displacement costs for fisheries. The use of partially protected areas is often proposed as an alternative. However, how conservation and fisheries outcomes of MPA networks are mediated through time by the level of protection remains uncertain. Here we use a metapopulation model of a commercially

Online wildlife trade is widespread and affects thousands of species. Yet, attempts to quantify online wildlife trade have mainly focused on a few platforms and taxonomic groups. Here, we study the prevalence of wildlife trade using automated data collection and filtering methods. We analyze trade across five digital platforms and 156 animal and plant species of conservation concern from a global biodiversity

Offsetting policies have increased worldwide, utilizing a range of biodiversity metrics to compensate for development impacts. We conducted a global analysis of offset legislation by reviewing policies from 108 countries, which have voluntary offsets, or which require offsets by law. We sought to understand how well biodiversity metrics and offset currencies are documented in current policies. Where

Crustaceans, which are highly susceptible to the effects of climate change, are critical for food security worldwide. Yet, management rarely evaluates the performance of alternative regulatory strategies under climate-driven life history change. This limits the development of climate-ready management plans, undermining fisheries sustainability. We compared the performance of alternative minimum legal

The Kunming-Montreal Global Biodiversity Framework (GBF) calls for a 50% reduction in rates of invasive alien species establishment by 2030. However, estimating changes in rates of introduction and establishment is far from straightforward, particularly on a national scale. Variation in survey effort over time, the absence of data on survey effort, and aspects of the invasion process itself interact

Protected areas (PAs) are a core component in global efforts to prevent further declines in biodiversity. We examine whether the United Kingdom's PA portfolio has reduced local extinctions of breeding birds and consider how the characteristics of different PA designations may have affected conservation outcomes. We use breeding bird atlas data to calculate the proportion of species in each 10 × 10-km

Risk assessments are conservation tools used to prevent the introduction of invasive species. Many assessments ask whether a taxon has invasive close relatives, but it is unclear whether this phylogenetic information is useful, and which taxonomic scales (e.g., genus, family) are most predictive of risk. Combining phylogenetic clustering analyses with models predicting invasion risk, we found invasive

Artisanal and small-scale gold mining (ASGM), a wealth-generating industry in many regions, is nonetheless a global challenge for governance and a threat to biodiversity, public health, and ecosystem integrity. In 2019, the Peruvian government mobilized a targeted, large-scale armed intervention against illegal ASGM, which has caused deforestation and water resource degradation in this Tropical Biodiversity

From tracking land-use change to biodiversity loss, citizen science data have become a cornerstone for conservation. However, policymakers must understand the “data-generating process” to make good use of existing citizen science data and encourage the production of useful new data. We analyze data from the two largest German online platforms for ecological observations to explore and quantify the

Cover description: The hunting of birds, such as this Madagascar white eye (Zosterops maderaspatanus), is common in rural Madagascar, affecting human wellbeing and, for some species, long-term population viability.

What factors render a species more vulnerable to extinction? In reptiles, foraging mode is a fundamental ecological dimension: some species actively search for immobile prey, whereas others ambush mobile prey. Foraging mode is linked to diet, morphology, movement ecology, and reproductive output, and hence plausibly might affect vulnerability to threatening processes. Our analyses of data on 1543 taxa

In July 2022, the International Union for Conservation of Nature listed the iconic North American monarch butterflies (Danaus plexippus) as Endangered because of population declines of 91% since 1996. Yet, in the United States, there are no national laws protecting monarchs. In 2020, the US Fish and Wildlife Service determined that monarchs are “warranted” for US Endangered Species listing, although

Australia is a global leader in land clearing and biodiversity loss. The overwhelming majority of land clearing within Australia and, globally, is driven by agricultural conversion. The importance of agricultural lands also leads to the concentration of habitat protection in landscapes that do not support productive land uses, which might contribute to species conservation in marginal habitat. Using

Projects designed to incentivize ecosystem management for societal benefits are becoming increasingly popular and are often touted as win–win solutions for social and environmental challenges. Yet, there are important concerns about the equity and justice implications of these programs, and there is strong evidence that a lack of attention to justice can exacerbate or create inequities. We focus on

Agricultural commodity production is a major driver of tropical deforestation and biodiversity loss. Natural rubber from Hevea brasiliensis, a valuable commodity without viable substitutes, has recently been included in the European Union (EU) deforestation regulation that aims to halt imports of goods containing embedded deforestation. Sustained growth in demand for rubber is driven by increasing

Climate change is threatening marine systems, and its widespread and dynamic effects are creating challenges for designing and managing marine protected areas (MPAs). The majority of recommendations for climate-resilient MPAs focus on enhancing ecological resilience to disturbance and updating management strategies to respond as changes occur. Here, we assess how existing recommendations for climate

Illegal fishing, unregulated bycatch, and market demand for certain products (e.g., fins) are largely responsible for the rapid global decline of shark and ray populations. Controlling trade of endangered species remains difficult due to product variety, taxonomic ambiguity, and trade complexity. The genetic tools traditionally used to identify traded species typically target individual tissue samples

Our planet is facing increasing challenges: climate change, biodiversity loss, pandemics, poverty, and many other problems closely linked to a deteriorating environment. Meanwhile, one of our most important assets, rangers working in protected and conserved areas responsible for managing large tracts of the planet's lands and waters, are often underutilized, underrecognized and underequipped. They

Interventions of the host–pathogen dynamics provide strong tests of relationships, yet they are still rarely applied across multiple populations. After American bullfrogs (Rana catesbeiana) invaded a wildlife refuge where federally threatened Chiricahua leopard frogs (R. chiricahuensis) were reintroduced 12 years prior, managers launched a landscape-scale eradication effort to help ensure continued

Finance is a precondition for many of the activities that harm ecosystems, but how to address this underlying driver of biodiversity loss remains a topic of debate. This paper reviews the Task Force on Nature-Related Financial Disclosures (TNFD), a corporate-led effort that aims to identify how changes to biodiversity may create financial risks for companies and investors. This approach is also promoted

Cover description: This photograph shows Purdon Dam, in Zimbabwe’s Nyanga National Park, with Mount Nyangani (Zimbabwe’s highest point) in the background. Nyanga National Park is one of Zimbabwe’s oldest protected areas. It contains numerous artefacts and stone structures built by the Ziwa people who inhabited it in the 15th–17th centuries. In more recent times, Nyanga National Park was part of Cecil

This editorial reflects on the history of the conservation movement, the strong continuing influence of its colonial past, and the counter-emergence of a more pluralistic and respectful worldview. Conservation Letters seeks to support and foster an ethical and inclusive discipline of conservation that discards elements of its colonial and racist history. This will involve broadening the disciplinary

Bird conservation depends on robust data on the densities of and threats to each species, and an understanding of the choices and incentives of bird hunters. This first comprehensive study of bird hunting and its effects in Madagascar uses 8 years of data on 87 bird species to determine bird densities and hunting pressure, incentives, choices, methods, spatial variation, and sustainability on the Masoala

Complex challenges posed by climate change, biodiversity loss, and global inequality may require intertwined solutions forged through the frame of “Nature and equity.” This timely frame responds to growing calls for conservation to deliver fair outcomes to people and offers strategic value for meeting environmental goals. To clarify how and why approaches that support nature and equity may emerge,

Existing quantitative syntheses on how biodiversity responds to anthropogenic habitat change appear to sometimes mix different biodiversity metrics in drawing inferences. This “mixing metrics” practice, if prevalent, would considerably bias our understanding of biodiversity responses and render uninterpretable conclusions. However, the prevalence of this practice remains unknown, and the bias it potentially

Trophic rewilding is increasingly being used to promote megafauna reintroductions to island ecosystems, yet ecosystem response to population restoration once megafauna reintroduction occurs remains understudied. In this study of a population of Galapagos giant tortoises reintroduced to an arid island, tortoise exclosures monitored over an 8-year-long period revealed that, in response to the presence

Evidence indicating that human-induced climate change has caused widespread adverse impacts on nature and people is overwhelming (IPCC, 2022). Transitioning to a renewable energy production model is essential to reduce fossil fuel use and greenhouse gas emissions (Gielen et al., 2019). Unfortunately, renewable energy production is not exempt from adverse biodiversity impacts (Serrano et al., 2020)

Protected areas (PAs) have been regarded as a critical strategy to protect natural forest (NF) and biodiversity. Estate-crop expansion is an important driver of deforestation in Indonesia. Yet, little is known regarding the temporal dynamics of PA effectiveness in preventing estate-crop expansion into NF. We employ Cox proportional hazard models and their extensions to characterize the dynamics of

Recent scientific evidence shows that genetic diversity must be maintained, managed, and monitored to protect biodiversity and nature's contributions to people. Three genetic diversity indicators, two of which do not require DNA-based assessment, have been proposed for reporting to the Convention on Biological Diversity and other conservation and policy initiatives. These indicators allow an approximation

Cover description: A collared lioness rolls on her back in Senegal’s Niokolo Koba National Park. This lioness and five others are the first lions collared in the Park by Panthera in an ambitious effort to recover the Critically Endangered species. This lioness was given the nickname ‘Flo,’ and with her collared sister in the background, these lionesses now form the largest of the Park’s prides. Among

South Africa sought to implement an ecologically representative Marine Protected Area (MPA) network to achieve biodiversity and fisheries management goals with least impact on offshore stakeholders. The result was the declaration of a spatially efficient network representing 131 of 150 marine ecosystem types (87%) in 5.4% of ocean area. We outline the 15-year process from planning to implementation

The fate of insects in the Anthropocene has been widely discussed in the scientific literature, the popular media, and in policy circles. This recent attention is justified because reductions in insect abundance and diversity have the potential to undermine the stability of terrestrial ecosystems. Reports of insect declines have also been accompanied by skepticism that is healthy and to be expected

Mismatches between conservation action and conservation needs have been highlighted for diverse species. Lion (Panthera leo) conservation is no exception, raising the question of whether current conservation strategies are always adequate to ensure the long-term persistence of threatened taxa.

The introduction of formal collective property rights to forest lands appears to have improved both environmental and economic outcomes, but there is limited evidence on how these reforms affect cooperative behavior among local resource users. We propose that when national governments issue collective land rights, they strengthen the collective psychological ownership among coowners and produce increased

Strong biodiversity declines have been reported across the European Union, especially in insects, despite conservation policy such as the Habitats Directive that aims to halt biodiversity loss. Using 50 years of observational data, we examined indicators for the goals of the Directive in terms of improving monitoring efforts and occupancy trends of butterfly and dragonfly annex species in a central

Urban biodiversity conservation is critical if cities are to tackle the biodiversity-extinction crisis and connect people with nature. However, little attention has been paid to how urban environmental managers navigate complex socio-ecological contexts to conserve biodiversity in cities. We interviewed environmental managers from Australian cities to identify (1) the breadth of conservation actions

Biodiversity targets, under the Kunming-Montreal Global Biodiversity Framework, prioritize both conservation area and their effectiveness. The effective management of protected areas (PAs) depends greatly on law enforcement resources, which is often tasked to rangers. We addressed economic aspects of law enforcement by rangers working in terrestrial landscapes across Asia. Accordingly, we used ranger

Parachute science (inequity in research relationships between Global North and South scientists) has known detrimental impacts on Global South researchers in conservation. Using two international datasets of English and non-English-language studies testing conservation interventions, we compared the continents in which studies were conducted to those in which authors were affiliated. We found that

Cover description: Deep reefs at 30m observed during the 2022 Nekton Maldives Expedition. Photo credit: Nekton Foundation

Human activities are damaging the world's ecosystems, posing a serious threat to life on Earth, including humanity. To address this situation, widespread and significant changes in human behavior are necessary. Direct experiences of nature can encourage individuals to adopt positive actions towards biodiversity (hereafter pro-biodiversity behavior), but this relationship has not been well studied.

Most of the international trade in fins (and likely meat too) is derived from requiem sharks (family Carcharhinidae), yet trade in only two of the 56 species is currently regulated. Here, we quantify catch, trade, and the shortfall in national and regional fisheries management (M-Risk) for all 56 requiem shark species based on 831 assessments across 30 countries and four Regional Fisheries Management

To protect nature, African parks must contribute to human well-being, overcome threats, and secure reliable funding sources. The first Africa Protected Areas Congress (APAC) held in Kigali, Rwanda from July 18 to 23, 2022 has reaffirmed the need to re-imagine the role of protected and conserved areas (PCAs) in safeguarding wildlife and biodiversity on the continent. Conservation strategies in Africa

Australia has an important role to play in protecting biodiversity, yet has a poor track record in preventing species extinctions. While invasive species and fire regimes are significant contributors to extinction risk in Australia, many species are threatened by habitat loss and other activities that support demand for products and services. Here, we connect the direct impact on in-scope species to

With its focus on wetlands, the Ramsar Convention provides the clearest global agreement helping the conservation of migratory waterbirds. Two specific criteria (5 and 6) support the scientific basis for sites to achieve Ramsar recognition based on waterbird counts, while criterion 4, on species and ecological communities, also plays a role. Other international conventions and agreements follow these

Hyperfragmentation of rivers by anthropogenic barriers is a major threat to biodiversity. Restoration policies are being adopted worldwide to mitigate these impacts, particularly those on fish connectivity. We assessed the utility of a novel genetic index of fragmentation, the FINDEX, by monitoring real-time responses of two fish genera to restoration operations at 11 weirs in France. The FINDEX outperformed

The UK government is considering legislation to prohibit the importation of hunting trophies. We examine documented social, ecological, and political outcomes of two previous such bans. We find that the UK government's proposal shares the shortcomings of existing bans that have (1) failed to address, or have even amplified, key threats to hunted species, (2) imposed costs on citizens of other countries

As human activities increase in intensity and extent, ecosystems face growing threats from multiple stressors. Successful management requires identifying measurable targets, which is challenging because of data limitations, nonlinear ecosystem responses, and potentially shifting targets under multiple stressors. To identify critical management values and determine whether these values shift in the

The global illegal wildlife trade (IWT) is a multibillion dollar annual trade that threatens numerous species. Understanding ways to improve the law enforcement response is an essential component in addressing this trade. Yet, quantifying the impacts of such conservation measures is often hindered by a lack of long-term and reliable datasets. Here, we evaluate a 15-year multistakeholder collaboration

Cover description: Ngurrara Rangers map potential night parrot habitat at a meeting hosted by Paruku Rangers and Traditional Owners in the Great Sandy Desert. Photo credit: Nicolas Rakotopare / Yanunijarra Aboriginal Corporation