Ecosystem disturbance is known to negatively affect herpetofauna. There are, however, few studies on the impact of volcanic ash fallout on reptile species and no known publications on any impacts on the family Phyllodactylidae. The Barbados leaf-toed gecko Phyllodactylus pulcher is a Critically Endangered lizard species endemic to the island of Barbados. During 9–22 April 2021, La Soufrière volcano on the neighbouring island of Saint Vincent erupted, leading to significant ash fallout on Barbados. Following this event, indices of body condition for the Barbados leaf-toed gecko declined significantly. However, monitoring over 17 months showed a gradual return to pre-ashfall indices for both males and females. Population-wide tail autotomy rates did not change significantly following the event. The proportion of gravid females significantly declined immediately after the ashfall event, although this exceeded the pre-ash proportion of the following year. Additionally, the proportion of females bearing two rather than one egg doubled in the year following the ashfall. It is unknown whether the decline in body condition is a direct consequence of exposure to ash or a secondary effect of declines in insects and vegetation cover; however, a synergy between these factors is probable.

Myanmar is globally significant for biodiversity conservation but is facing unique challenges as a result of the current political situation, which has led to unsustainable use of natural resources, withdrawal of conservation funds and a governance vacuum that hinders effective conservation. Given these challenges, there is a need to empower local civil society to implement community-led conservation programmes. We report on locally-led surveys of the Critically Endangered white-bellied heron Ardea insignis in northern Myanmar. We recorded the species’ occurrence along rivers and streams across two river catchments in Kachin state during June 2022–December 2023. We sighted white-bellied herons on 25 occasions and we estimate the local population to be 3–5 individuals. Opportunistic hunting using home-made air-pressured guns is a major threat to wildlife in the region and we documented two white-bellied herons shot in the area since 2019. Threats are exacerbated by a lack of wildlife law enforcement as a result of the country’s political unrest. We describe our initial efforts to implement a community-led approach to foster local stewardship in species and habitat management.

Live animal programming is one way that zoos and aquariums can connect their visitors to wildlife. At The Living Desert Zoo and Gardens in California, USA, children aged 7–15 years were assigned to different animal presentation styles as part of their participation in a 3-day summer camp involving ambassador animals. Children were either allowed or not allowed to touch a tortoise being presented to them, following current practices in zoos. We predicted that the ability to touch a tortoise would increase both the desire to conserve tortoises in the wild, as intended, as well as the desire to own a tortoise as a pet, reflecting an unintended descriptive norm. We found no overall effect of allowing children to touch a tortoise on their personal desire to own a tortoise or on making them think others could own them, although participating in the live animal programme at the summer camp reduced older children’s personal desire to own a tortoise and lowered all children’s belief that other people should be able to own tortoises. Across presentation styles, exposure to an ambassador animal encounter increased children’s conservation intent, suggesting that attending a nature-based camp increased their pro-conservation attitudes. Age moderated the effects: touching increased conservation intent and liking among younger children more than older ones, while they still expressed a desire to own tortoises as pets. We discuss the implications of our results for ambassador animal programmes with children.

Global demand for shark products has contributed to increased levels of illegal shark fishing, posing a significant threat to marine ecosystem health and the sustainability of related livelihoods. Despite increased management and policy attention, including bans on shark finning and harvesting of certain species, compliance is not universal, and unsustainable practices persist. In this study, we focus on illegal shark fishing by Sri Lanka’s semi-industrial fleet, aiming to explore fishers’ awareness, perceptions of, and compliance with measures introduced to curb unsustainable shark fishing. During January–June 2023, 254 questionnaire-based interviews and six focus group discussions were conducted at three harbours associated with previous illegal shark landings to explore awareness of regulations and potential drivers of non-compliance. Our findings suggest that only 9% of respondents were aware of all banned shark species, 12% landed banned sharks that were caught incidentally and 47% reported that illegal shark landings occur. Thematic analysis identified key drivers of non-compliance, including the economic importance of sharks, reluctance to discard sharks, lack of awareness of regulations and perceived corruption amongst management authorities. These findings underscore the need to incorporate human dimensions into policymaking and fisheries management to address the global issue of illegal shark fishing effectively. Additionally, we identify that local support is critical for the success and sustainability of shark conservation and management efforts.

In 2001, only six Bali starlings Leucopsar rothschildi remained in the wild. In 2006, the NGO Friends of Nature, People and Forests established a second population on Nusa Penida Island through the release of captive-bred individuals, installation of nest boxes, and engagement with local communities, an approach later extended to Besikalung Wildlife Sanctuary. In this study, we evaluated breeding success in Besikalung in relation to location and nest box placement and examined the role of local cultural frameworks in supporting conservation. We assessed breeding outcomes from 34 nest boxes across sites and conducted interviews with key local stakeholders. Breeding success differed among locations, indicating that site-specific conditions influence reproductive outcomes. Interviews showed that conservation at Besikalung is reinforced by Indigenous law (awig-awig), grounded in the Balinese philosophy of Tri Hita Karana, and by the symbolic status of the Bali starling as an emblem of Bali, which together strengthen community support for its protection.

Begonia larorum is a threatened plant species endemic to Alcatrazes Island, south-east Brazil, which had not been recorded since its discovery in the 1920s. Here we report its rediscovery after more than a century since the first and only collection. In February 2024, we found a single individual in the forest understorey and successfully propagated it ex situ. Later that year we located a population of 19 individuals in an open area of vegetation prone to fires and invasive grasses and we obtained the first colour photographs of the species. Given its restricted range and the threats to its survival, we recommend the species be assessed for inclusion on the global IUCN Red List in addition to maintaining its Critically Endangered status at national level on the Red List of Brazilian Flora. We also propose in situ and ex situ conservation actions.

Climate and land-use changes are major threats to amphibian conservation. However, amphibians on tropical oceanic islands appear to have been overlooked with regards to their vulnerability to global anthropogenic threats. Here we examine whether there are gaps in research evaluating the vulnerability of tropical oceanic island amphibians to climate and land-use changes. We carried out a systematic review of the literature on experimental studies published during 1 July 1998–30 June 2022, to evaluate whether there are knowledge gaps in relation to geographical scope, taxonomic representation, life stage assessment, the factors affecting amphibians and how species and populations respond to these factors. Of 327 articles on climate change and 451 on land-use change, the research of only 18 was carried out on tropical oceanic islands, only on anurans, and < 20% of the authors were affiliated with an oceanic island institution. These 18 studies were on only five islands, and the range of families and life stages assessed was limited. We also found uneven research into the factors affecting oceanic island amphibians and their responses; analyses involving the effect of temperature on amphibian range expansion or contraction were the most common, with few studies of the effects of salinity. The scarcity and unevenness of research from oceanic islands limit our understanding of the effects of climate and land-use changes on amphibians. We discuss potential reasons for these knowledge gaps and recommend ways to address them, such as more equitable distribution of resources and provision of training and research opportunities for island-based biologists.

The pelagic thresher shark Alopias pelagicus is an Evolutionarily Distinct and Globally Endangered species primarily threatened by overfishing. Indonesia is the world's largest shark fishing nation, and in Alor Island, thresher sharks have been a primary target for small-scale fishing communities for decades, sustaining subsistence livelihoods and serving as a protein source. With thresher shark populations continuously declining, there is a need for conservation measures to reduce shark mortality from fishing, while also securing the well-being of coastal communities. This study presents results and lessons learnt from a multi-faceted effort to reduce communities’ dependence on this Endangered shark species through a livelihood-based intervention complemented by collaborative species management and community outreach. Using a theory-based and statistical research design, we describe the approach taken in our intervention and its conservation outcomes. Total thresher shark catches were 91% lower among fishers who participated in our intervention compared to non-participants. Participating fishers also experienced increases in their income, in some cases by up to 525% relative to the income before the intervention. Occasional violations and challenges in the form of socio-political conflicts also occurred, yet these incidents acted as catalysts for regulatory change and reinforced stakeholder collaboration. This suggests overall positive outcomes and the potential for continued social change in shark conservation in the region over the long term. Our findings outline some generalizable lessons learnt for designing and implementing bottom-up livelihood-based interventions in other contexts.

Guerrilla rewilding, the unsanctioned release of species into the wild, is a controversial activity criticized by most conservation professionals. In this Forum article we argue that despite this criticism, it has played a significant but underexplored role in the UK’s rewilding movement. Using examples including butterfly species, goshawk Astur gentilis, wild boar Sus scrofa, beaver Castor fiber and lynx Lynx lynx, we argue that examining these guerrilla rewilding acts provides valuable insights into public preferences for certain species, their perceived acceptability, and the ways in which they shape knowledge and practices of human–wildlife coexistence. However, our analysis also suggests that in some cases guerrilla rewilding can undermine the very species it seeks to restore. Animals released without preparation or monitoring, particularly those habituated to human presence, often lack the ability to survive independently, leading to welfare issues, human–wildlife conflict and wider ecological impacts. Furthermore, by circumventing the social and collaborative dimensions of rewilding, these actions risk deepening divisions among stakeholders, which are critical to ensuring long-term success. Nonetheless, this type of rewilding can also potentially trigger more positive emotions of recovery whilst raising the species’ profile. We find that guerrilla rewilding has in some cases influenced formal rewilding practice and the broader discourse in the UK, in stark contrast to the official government position on nature recovery. This paper draws together some key learning points and highlights areas for future research on guerrilla rewilding.

Understanding demographic processes is critical for conserving threatened epiphytes, yet detailed population studies remain rare. We analysed population dynamics in the context of phorophyte structure of the threatened orchid Cattleya quadricolor, endemic to Colombian tropical dry forest, to identify conservation priorities across eight fragmented subpopulations. Using stage-structured population projection models, we estimated both asymptotic growth rates (λ) and transient dynamics to assess long-term persistence and short-term vulnerability. Across all sites, λ values were consistently < 1, demonstrating that populations are in decline. Demographic structure was strongly skewed towards adult individuals, with seedling and juvenile stages strikingly underrepresented, suggesting recruitment failure as a major population bottleneck. Transient analyses further revealed limited capacity for short-term recovery after disturbance, especially in small populations. Phorophyte composition further influenced risk, as small host trees provide less stable substrates and greater accessibility to collectors, exacerbating vulnerability. Conservation priorities therefore differ amongst populations. In some sites, immediate protection of adult plants, targeted management of phorophyte assemblages and stronger enforcement against illegal collection are most urgent. In others, actions to enhance seedling recruitment, establish ex situ collections and reinforce reintroduction programmes are critical to buffer populations against extinction risk. By integrating asymptotic and transient demographic models with habitat context, our study demonstrates a comprehensive framework for evidence-based conservation of rare epiphytes, and underscores the importance of demographic approaches and phorophyte context for guiding orchid conservation in fragmented tropical dry forests.

Island-endemic arthropods are understudied species and likely to be highly threatened with extinction. Analysis of IUCN Red List assessments can be used to highlight important microhabitats requiring conservation for the effective management of island-endemic arthropod biodiversity. We synthesized information on the 296 island-endemic arthropod species assessed as Critically Endangered as of April 2024, the geography of the islands to which they are endemic, and the broad threats they face. These species comprised 33 taxonomic orders, across which an average of 53% of species were limited entirely to tiny, confined areas of habitat: caves, high elevation areas, isolated pools or sea stacks. These micro-refugia are most utilized by crustaceans and least utilized by myriapods. Caves and pools are the most important habitats on temperate islands where habitat degradation threatens crustaceans. On small tropical islands where arachnids and hexapods are threatened by invasive species, refugia are mostly in high elevation areas. Sea stacks appear to be effective refugia from invasive species only for threatened island-endemics with notable long-distance dispersal adaptation. None of the refugia appear effective in sustaining arthropod species immediately threatened by climate change. Using the interaction between arthropod life history, habitat and threats, it is possible to generalize micro-refugia that (1) should be immediately targeted for management, and (2) could yield undescribed or presumed-extinct species. Prioritizing such refugia for management and research can guide efficient expenditure of local capacity. In our case study, on Ascension Island, micro-refugia for seven endemic arthropods covered < 0.1% of the island's total area.

The bush dog Speothos venaticus, a short-legged, medium-sized Neotropical canid, remains elusive despite its wide geographical range. We present the first documented occurrence of this species within Rio Doce State Park, Minas Gerais state, Brazil. This Park is a unique, well-preserved area with a diverse array of mammal species, a rarity in the fragmented Atlantic Forest. We recorded the bush dog after 7,744 camera-trap days near Lagoa dos Patos, one of the Park’s lakes. This new record is a significant range extension for the species within the Atlantic Forest of Minas Gerais state, as the nearest known record is c. 420 km to the south. The new record is the northernmost documented occurrence of the bush dog in the Brazilian Atlantic Forest. This finding is a significant addition to the Park’s mammalian carnivore community, and underscores its importance as high-quality habitat for rare species such as the bush dog, and its value for scientific research and biodiversity conservation.

Human-induced pressures such as climate and land-use changes in the Anthropocene disproportionately threaten island ecosystems and the endemic species they host. Shedding light on the ecological needs of island species is key to the conservation of these fragile ecosystems and their unique species. Here we present the ecological needs of a bat species endemic to Sardinia, the long-eared bat Plecotus sardus, and analyse the relationship between this Critically Endangered species and the insular environment at different spatial scales to inform action for its conservation. We show that besides displaying a unique phenology and roost use, the species is closely associated with the dry broadleaf forests of native oaks Quercus ilex and Quercus suber at all scales and, in contrast, is negatively affected by coniferous stands, open pastures and urban environments. Our results not only provide key information for the conservation of P. sardus but also provide insights into the unique adaptations of insular endemic species to the fragile island ecosystems, highlighting the importance of ecological studies to informing conservation in biodiversity hotspots. We also demonstrate that protection and restoration of key habitats, particularly within 2 km of roosts, are key to protecting the few known reproductive colonies.

The Louisiana black bear Ursus americanus luteolus, a subspecies of the subtropical south-central USA, was protected by the U.S. Endangered Species Act in 1992 but removed from coverage in 2016 based on the alleged presence of two viable native populations that had begun to interbreed. However, historical and genetic data show that one population is descended from bears captured in the U.S. state of Minnesota, far to the north, and released on the property of a hunting club in Louisiana. A recent judicial decision ignored those data, deferring to deceptive government claims and effectively dooming the native subspecies to genomic extinction through hybridization with the introduced population.

The Chinese pangolin Manis pentadactyla is categorized as Critically Endangered on the IUCN Red List, but the development of effective conservation strategies is hindered by a lack of data on its distribution range and population dynamics. In addition, standardized survey and analysis methods are required to facilitate the sharing of results and maximize conservation effectiveness. To fill these knowledge and methodological gaps, we investigated the occurrence of pangolin burrows in the subtropical forest ecosystem of Fujian, China. We surveyed a total of 70 transects across five land-cover types within the Fujian Junzifeng National Nature Reserve and detected 87 burrows. The majority of burrows (87%) were located in mixed conifer and broadleaf forests. We used six environmental variables in a generalized linear model to examine the relationship between the occurrence of burrows and environmental factors. The average model results from the best model set showed that the distribution of burrows was significantly influenced by forest type. For effective pangolin conservation, we recommend that local conservation authorities prioritize the protection of mixed conifer and broadleaf forests. Our findings support the local conservation of the Chinese pangolin and the standardization of surveys and conservation efforts across the species’ range.

Large carnivore conservation in human-dominated landscapes is a complex issue, often marked by the stark contrast between those who hold deep-rooted animosity towards these animals and those who welcome their presence. The survival of the Eurasian lynx Lynx lynx in Europe relies on effective coexistence with humans in multi-use areas. We explored the experiences and perceptions of local hunters and pastoralists regarding the return of the lynx to the Giffre Valley, France, and mapped lynx distribution based on the probability of site use while accounting for detection probability. We conducted in-depth interviews with 29 respondents to gather data on lynx sightings, rationale for hunting and pastoralism, and perceptions of lynxes. We found that 45% of respondents had detected lynxes in the last 40 years, with an estimated site use of 0.66 ± SE 0.33 over the last decade, indicating there was a 66% probability of lynxes using the sites during that time period. Our results suggest that hunting and pastoralism in the region are rooted in a desire to carry on local traditions and connect with the natural world. Respondents generally tolerated the presence of lynxes, perceiving few threats to their livelihoods and activities, and expressing a willingness to coexist peacefully. However, some identified future challenges that could arise with the return of large carnivores to the valley and highlighted scenarios that could lead to a decline in tolerance. This study emphasizes the valuable knowledge of local hunters and pastoralists and their potential role in lynx population monitoring and conservation. Integrating stakeholder values in decision-making processes is crucial for inclusive and sustainable responses to promote biodiversity.