Global Ecology and Conservation最新文献_第3页

Bryophyte diversity and its environmental drivers across three green space types in Guangzhou, southern China 广州3种绿地类型苔藓植物多样性及其环境驱动因素

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-06-01 Epub Date: 2026-02-27 DOI: 10.1016/j.gecco.2026.e04136

Ke Liu , Hongxiao Liu , Lingbo Ji , Dafeng Hui , Hai Ren

引用次数: 0

Spatial and temporal responses of a predator-prey assemblage to the COVID-19 anthropause 捕食者-猎物组合对COVID-19人类停顿的时空响应

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-01-31 DOI: 10.1016/j.gecco.2026.e04100

Dol Raj Thanet , Saneer Lamichhane , Tirtha Bahadur Kshetri , Madhu Chaudhari , Santosh Rayamajhi , Thakur Silwal

{"title":"Spatial and temporal responses of a predator-prey assemblage to the COVID-19 anthropause","authors":"Dol Raj Thanet , Saneer Lamichhane , Tirtha Bahadur Kshetri , Madhu Chaudhari , Santosh Rayamajhi , Thakur Silwal","doi":"10.1016/j.gecco.2026.e04100","DOIUrl":"10.1016/j.gecco.2026.e04100","url":null,"abstract":"<div><div>Human recreation increasingly influences wildlife behavior, yet spatial and temporal responses are rarely studied together. We used the COVID-19 lockdown and pre-lockdown survey periods in Bardia National Park, Nepal, as a quasi-experiment to investigate how sudden relaxation in human recreation alters site use and diel activity patterns of predator–prey assemblage. Using camera trapping data, we analyzed camera stations that were in operation during both survey periods within an identical 48-day temporal window [24 March–10 May; pre-lockdown (2019) vs. lockdown (2020)]. Spatial responses were estimated using a two-season, multi-species hierarchical site use model, and temporal responses with kernel density overlap and a probability of diurnality. Site use increased during the lockdown for apex predators and several ungulate prey, especially tiger, wild boar, and nilgai, while chital showed little change, and others showed highly uncertain changes with credible intervals overlapping zero. Prey ungulates broadly reclaimed daylight: chital and barking deer shifted mean activity peaks 2–3 h later, hog deer shifted earlier with a marked reshaping of its activity curve, and sambar moved from nocturnal to crepuscular peaks. Tiger activity changed little overall, though diurnal activity decreased. Year-specific functional responses to greenness (NDVI), elevation, and human disturbance were mostly similar across years but with higher predicted site use in 2020, indicating increased habitat permeability rather than changes in habitat selection. These patterns suggest that spatial and temporal responses are only partly aligned across species, so management strategies that protect both where and when wildlife can operate—for example, zoning away from key corridors and quiet hours around dawn and dusk—may be most effective in maintaining access to critical habitats and activity periods.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04100"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forest edges and farmlands as key habitats for butterfly communities in a biodiversity hotspot: A case study from the Taita Hills, Kenya 森林边缘和农田是生物多样性热点地区蝴蝶群落的主要栖息地：来自肯尼亚泰塔山的案例研究

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-01-31 DOI: 10.1016/j.gecco.2026.e04101

Duncan K. Mwinzi , Esther N. Kioko , Chao-Dong Zhu , Rui Cheng

{"title":"Forest edges and farmlands as key habitats for butterfly communities in a biodiversity hotspot: A case study from the Taita Hills, Kenya","authors":"Duncan K. Mwinzi , Esther N. Kioko , Chao-Dong Zhu , Rui Cheng","doi":"10.1016/j.gecco.2026.e04101","DOIUrl":"10.1016/j.gecco.2026.e04101","url":null,"abstract":"<div><div>Global biodiversity is declining, largely due to the conversion of natural habitats into agricultural land, settlements, and exotic tree plantations. This has left many natural habitats as small, geographically isolated fragments. The cloud forests of the Taita Hills in Kenya have undergone significant changes in recent decades, resulting in the fragmentation of indigenous forests into small remnants. Despite this, these remaining forest patches continue to support high levels of biodiversity. Butterflies, sensitive to habitat changes, serve as key ecosystem indicators. In this study, we investigated how butterfly composition, richness and abundance vary between forest edges and farmlands, across wet and dry seasons using transect counts and baited traps. We recorded 144 butterfly species from 62 genera across 5 families, totaling 17,438 individuals. Species richness, abundance and Shannon diversity were significantly higher at the forest edge than in farmlands. Non-metric multidimensional scaling analysis revealed distinct butterfly communities in the two habitats and seasons. Wet season had higher species richness than dry season, but no significant difference was found in butterfly abundance between seasons. Species richness and abundance did not significantly change with increase in distance from the forest edge. The forest edges support specialist species, including endemics, while farmlands host both savanna and forest specialists. Conservation efforts should focus on protecting remaining pristine forest fragments and creating diverse agricultural landscapes with hedges to aid butterfly conservation.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04101"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Partitioned functional spaces, collapsing redundancy: Functional extinction risks in coastal fish communities 功能空间分割，冗余崩塌：沿海鱼类群落的功能灭绝风险

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-02-04 DOI: 10.1016/j.gecco.2026.e04109

Pengzhan Zhang , Yang Yan , Feng Zeng , Linlong Wang , Yefu Kong , Xin Peng , Yugui Zhu , Lifeng Zhang , Bin Kang

{"title":"Partitioned functional spaces, collapsing redundancy: Functional extinction risks in coastal fish communities","authors":"Pengzhan Zhang , Yang Yan , Feng Zeng , Linlong Wang , Yefu Kong , Xin Peng , Yugui Zhu , Lifeng Zhang , Bin Kang","doi":"10.1016/j.gecco.2026.e04109","DOIUrl":"10.1016/j.gecco.2026.e04109","url":null,"abstract":"<div><div>The functional dimension of biodiversity is a critical predictor of ecosystem resilience, yet it is frequently overlooked in conservation planning for degraded coastal systems. Taking the anthropogenically pressured central East China Sea as an example, we conducted a trait-based analysis of 242 elasmobranch and bony fish species using seven years of standardized bottom trawl data (2015–2021) and quantified functional structure–ecosystem function linkages. Our analysis revealed that elasmobranchs and bony fishes occupy fully partitioned functional spaces, demonstrating complementary and non-redundant ecosystem roles. We further identified significant associations between fish functional traits and specific ecosystem functions. Spatially, offshore waters exhibited significantly elevated species richness and functional richness, whereas nearshore communities showed heightened functional originality. Crucially, simulated extinctions of key functional groups—mesopredators (76.6 % functional richness loss), nutrient transporters (61.3 %), and top predators (11.8 %)—exceeded random extinction impacts, indicating collapsing functional redundancy. Nearshore systems proved disproportionately vulnerable to mesopredator and nutrient-transporter loss. These findings necessitate targeted conservation of elasmobranchs and functionally irreplaceable species—particularly mesopredators, nutrient transporters and top predators—to mitigate disproportionate functional diversity loss and sustain key ecosystem functions under escalating anthropogenic pressures.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04109"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Policy orientations reshape landscape connectivity in mountainous regions: Simulation and spatial optimization in Funiu Mountain area in Central China 政策导向重塑山区景观连通性——以伏牛山为例的模拟与空间优化

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-02-04 DOI: 10.1016/j.gecco.2026.e04105

Zechen Wang , Zhenqin Shi , Wenbo Zhu , Jiayuan Mao , Shiliang Liu

{"title":"Policy orientations reshape landscape connectivity in mountainous regions: Simulation and spatial optimization in Funiu Mountain area in Central China","authors":"Zechen Wang , Zhenqin Shi , Wenbo Zhu , Jiayuan Mao , Shiliang Liu","doi":"10.1016/j.gecco.2026.e04105","DOIUrl":"10.1016/j.gecco.2026.e04105","url":null,"abstract":"<div><div>Landscape connectivity is a key indicator of ecological integrity and stability at the large scale, yet it is highly vulnerable to land-use changes driven by policy decisions. Over recent decades, rapid urbanization and land-use intensification have led to a widespread decline in connectivity, especially in central and eastern regions in China. Consequently, it is urgent to investigate how different policy orientations will affect landscape connectivity in the future. This study analyzed land-use data from the Funiu Mountain area (2005–2020) in Central China and employed the Patch-generating Land Use Simulation model to simulate land-use patterns in 2035 under four policy-oriented scenarios. Morphological Spatial Pattern Analysis and Conefor were used to evaluate the landscape connectivity of ecological core areas, and the policy scenario with the greatest improvement was applied to guide the spatial configuration of future forest and cropland. The results showed that elevation was the dominant driver of land-use change, and substantial land-use shifts occurred across all scenarios, with the ecological-priority scenario increasing connectivity indices by 30–40 %, while the other three scenarios changed within –10–10 %. This study provides theoretical support for policy delineation by prioritizing contiguous forest expansion along key ecological corridors, clustering new cropland near existing patches, and siting construction away from least cost paths and pinch points, which improves connectivity as indicated by higher PC, IIC, and LCP and reduces fragmentation risk. Multiple policy scenarios of landscape connectivity simulation can help optimize production, living, and ecological spaces and guide sustainable land use planning in mountainous regions.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04105"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A multi-model analysis of global pangolin trade from CITES records (1977–2024): Implications for species conservation 基于CITES记录的全球穿山甲贸易多模型分析（1977-2024）：对物种保护的启示

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-02-20 DOI: 10.1016/j.gecco.2026.e04117

Tariq Ahmad , Sayantani M. Basak , Bo Li

{"title":"A multi-model analysis of global pangolin trade from CITES records (1977–2024): Implications for species conservation","authors":"Tariq Ahmad , Sayantani M. Basak , Bo Li","doi":"10.1016/j.gecco.2026.e04117","DOIUrl":"10.1016/j.gecco.2026.e04117","url":null,"abstract":"<div><div>Pangolins are the world’s most intensively traded mammals, primarily targeted for their scales, meat, and body parts. Consequently, international trade continues to threaten their existence, despite legal protection. Using CITES trade records from 1977 to 2024, we examined temporal, geographic, and taxonomic patterns of pangolin trade after rigorous data cleaning and standardization. Poisson regression generalized linear mixed models (GLMM), and a zero-inflated negative binomial (ZINB) model were employed to examine trade trends, accounting for overdispersion and excess zeros. Our findings reveal a long-term decline in reported legal trade, yet a marked shift in species and trade dynamics. Historically dominated by Asian species such as Manis javanica, M. crassicaudata, and M. pentadactyla, the trade has increasingly involved African species, including M. gigantea and M. tricuspis, in recent years. Since 2000, reported exports from and imports to China have declined significantly and are now comparable to those of other major countries, indicating substantial progress in controlling the pangolin trade. Following the 2016 uplisting of all eight species pangolin to Appendix I, the legal international trade declined sharply, although unreported trafficking may persist beyond CITES records. Overall, this shift reveals the depletion of Asian populations and the rising exploitation pressure on African species. Our findings highlight a clear shift in global pangolin trade, with African pangolins now replacing Asian pangolins, and highlight the vital need for stronger enforcement measures and monitoring that directly target commercial demand.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04117"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bald Eagle home range size and core-use areas in an urbanizing landscape 秃鹰家园规模和核心使用区域处于城市化景观之中

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-01-19 DOI: 10.1016/j.gecco.2026.e04079

Miranda Middleton , Reesa Yale Conrey , Nicolas Jaffe , Liba Pejchar

{"title":"Bald Eagle home range size and core-use areas in an urbanizing landscape","authors":"Miranda Middleton , Reesa Yale Conrey , Nicolas Jaffe , Liba Pejchar","doi":"10.1016/j.gecco.2026.e04079","DOIUrl":"10.1016/j.gecco.2026.e04079","url":null,"abstract":"<div><div>Urbanization has contributed to the decline of many wildlife species through habitat loss. To examine how Bald Eagles (<em>Haliaeetus leucocephalus</em>) respond to urbanization we used dynamic Brownian bridge movement models to estimate home range size and core-use areas of 24 territorial Bald Eagles affixed with GPS/GSM transmitters during five different stages of the annual cycle. We then used a mixed-effects linear regression model to identify the land cover characteristics associated with home range size and core-use areas. We found that Bald Eagle home ranges and core-use areas varied in size and were often discontinuous. Home ranges and core-use areas tended to be larger during the pre-nesting and non-nesting stages and smaller during the nestling and post-fledge stages, with these differences being more pronounced in females. Home ranges and core-use areas were smaller in areas containing more water and lower canopy cover. Home ranges, but not core-use areas, were also smaller in areas containing higher amounts of herbaceous wetlands. Home range size was not strongly associated with impervious cover, a metric of human development intensity, but core-use area size increased with impervious cover. Eagle core-use areas did not contain more than an average of 39 % impervious cover, defined as low development intensity by the U.S. Geological Survey. In our study, home ranges covered areas with higher levels of impervious surface compared to core-use areas, demonstrating that while eagles will inhabit areas with moderate levels of development, they concentrate their use in areas with lower levels of development. These findings suggest that Bald Eagles can use urbanizing landscapes, but care should be taken to protect key nesting and foraging sites from high density development.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04079"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decoupled climate relationships of tree radial growth and canopy dynamics along environmental gradients in Qinling Mountains, central China 秦岭树木径向生长与冠层动态沿环境梯度的解耦气候关系

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.gecco.2026.e04060

Xuan Wu , Changfeng Sun , Yu Liu , Mengdan Jing , Huiming Song , Qiufang Cai , Meng Ren , Zhuoying Li , Qiang Li

{"title":"Decoupled climate relationships of tree radial growth and canopy dynamics along environmental gradients in Qinling Mountains, central China","authors":"Xuan Wu , Changfeng Sun , Yu Liu , Mengdan Jing , Huiming Song , Qiufang Cai , Meng Ren , Zhuoying Li , Qiang Li","doi":"10.1016/j.gecco.2026.e04060","DOIUrl":"10.1016/j.gecco.2026.e04060","url":null,"abstract":"<div><div>Radial growth and canopy dynamics of trees both play a significant role in the terrestrial carbon cycle. However, the climate-driven responses of these two key biomass compartments and their modulating factors across different growing seasons remain insufficiently understood. In this study, we integrated tree-ring chronologies with the normalized difference vegetation index (NDVI) from remote sensing to investigate the climate response of tree growth across 20 sites spanning different environmental gradients in the Qinling Mountains of central China. We calculated correlations of Tree-ring width and NDVI with climate factors and evaluated how these responses varied with aridity index, topographic wetness index, elevation and slope. The results revealed that decoupling of xylem and foliage climate responses was most significant in the early growing season, primarily driven by moisture availability, with both tree-ring width and NDVI showing stronger correlations with vapor pressure deficit (VPD) and temperature under improved moisture conditions. Notably, we observed a significant positive correlation between TRW and NDVI of the middle growing season. These findings demonstrate that climate response differences between radial growth and canopy dynamics may arise from their heterogeneous adaptive strategies along environmental gradients, highlighting the important scientific significance of joint assessment of both xylem and foliage growth for understanding forest growth dynamics under global change.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04060"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental challenges influencing maternal care and nesting success in the Broad-snouted Caiman 影响宽吻凯门鳄母性护理和筑巢成功的环境挑战

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.gecco.2026.e04088

Sofía E. Pierini , Melina S. Simoncini , Alejandro Larriera , Jazmín Bauso , Leonardo J. Scarpa , Carlos I. Piña

{"title":"Environmental challenges influencing maternal care and nesting success in the Broad-snouted Caiman","authors":"Sofía E. Pierini , Melina S. Simoncini , Alejandro Larriera , Jazmín Bauso , Leonardo J. Scarpa , Carlos I. Piña","doi":"10.1016/j.gecco.2026.e04088","DOIUrl":"10.1016/j.gecco.2026.e04088","url":null,"abstract":"<div><div>Maternal care and nesting success are critical components of the reproductive cycle in crocodilians, and are strongly influenced by environmental conditions. We studied the effects of environmental factors on maternal care and nesting success in the Broad-snouted Caiman (<em>Caiman latirostris</em>), and we described the behavioral patterns of females. Using camera traps, we monitored 64 nests in forest, savanna, and marsh habitats across different levels of anthropogenic disturbance in Santa Fe, Argentina, over four nesting seasons (2018–2022). Regarding maternal care behavior, we identified nest defense, hatching assistance, and protecting unhatched eggs, in addition to the same patterns previously observed in captivity (nest construction, egg-laying, nest maintenance, and guarding the nest). Maternal care was more frequently observed in marsh nests. However, maternal care did not significantly vary in response to anthropogenic disturbances, nor across nesting seasons. Overall, 38 % (24 out of 64) of the nests were successful, and success was positively associated with maternal care. Most unsuccessful nests occurred in savanna areas, where nests were often affected by flooding and predation by feral pigs (<em>Sus scrofa</em>). These findings contribute to a better understanding of the reproductive strategies of the Broad-snouted Caiman and highlight the need for further research on the costs and benefits of maternal care.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04088"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The loss of prey base may drive the jaguar (Panthera onca) toward extinction in the Atlantic Forest of South America 在南美洲的大西洋森林中，失去猎物基地可能会使美洲虎（Panthera onca）走向灭绝

IF 3.4 2区环境科学与生态学

Global Ecology and Conservation Pub Date : 2026-04-01 Epub Date: 2026-01-31 DOI: 10.1016/j.gecco.2026.e04084

Katia Maria Paschoaletto Micchi de Barros Ferraz , Roberta Montanheiro Paolino , Roberto Fusco-Costa , Ricardo Sampaio , Ana Beatriz de Almeida , Juliano André Bogoni , Vania Foster , Yara Barros , Adriano Garcia Chiarello

{"title":"The loss of prey base may drive the jaguar (Panthera onca) toward extinction in the Atlantic Forest of South America","authors":"Katia Maria Paschoaletto Micchi de Barros Ferraz , Roberta Montanheiro Paolino , Roberto Fusco-Costa , Ricardo Sampaio , Ana Beatriz de Almeida , Juliano André Bogoni , Vania Foster , Yara Barros , Adriano Garcia Chiarello","doi":"10.1016/j.gecco.2026.e04084","DOIUrl":"10.1016/j.gecco.2026.e04084","url":null,"abstract":"<div><div>Jaguar (<em>Panthera onca</em>) is critically endangered in the Atlantic Forest hotspot. Concerned with its imminent extinction, this study combined information on jaguar diet and feeding habits with the most extensive standardized camera-trap survey of jaguar prey species ever conducted in the biome. We aimed to estimate local prey abundance and biomass in nine protected areas, comparing a high-abundance area in the Green Corridor to lower-abundance or jaguar-free areas in the Coastal Atlantic Forest. Additionally, we evaluated the influence of human pressures and environmental variables on prey availability. A systematic literature review was conducted to identify the prey items in the jaguar diet. Camera traps were deployed in a systematic grid. We estimated the local abundance of 14 key prey species using detection/non-detection data in a multi-region community modelling approach. Results showed that jaguar diets are dominated by large-bodied prey, particularly Tayassuidae and Cervidae. Estimated prey abundances (mean = 27.3 individuals) and biomass (mean = 638 kg) were highest in the Green Corridor - and lowest in Coastal Atlantic Forest regions (abundance mean ranging from 1.3 to 10 individuals and mean biomass ranging from 8.2 to 492 kg PA) where jaguars are absent or occur at very low densities. The low abundance and biomass of prey species was explained by human presence, since prey was more abundant in areas with a high cost of human access and less abundant where human access was favored. Long-term conservation of jaguars in the Atlantic Forest depends on restoring prey populations through participatory governance and adaptive management that bridges ecological and social dimensions of conservation.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"66 ","pages":"Article e04084"},"PeriodicalIF":3.4,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0