Shuaishuai Gao , Delgerchimeg Davaasuren , Jicai Li , Changliang Shao , Yuguang Zhang , Xiulei Wang , Jia Li
{"title":"Projected impacts of climate change and border fencing on the distribution of Khulan (Equus hemionus hemionus)","authors":"Shuaishuai Gao , Delgerchimeg Davaasuren , Jicai Li , Changliang Shao , Yuguang Zhang , Xiulei Wang , Jia Li","doi":"10.1016/j.gecco.2025.e03593","DOIUrl":"10.1016/j.gecco.2025.e03593","url":null,"abstract":"<div><div>The Khulan (<em>Equus hemionus hemionus</em>), a wild ass inhabiting the arid and semiarid regions of Central Asia, plays a critical ecological role in maintaining the balance of desert steppe ecosystems. However, its populations are increasingly threatened by climate change and anthropogenic barriers, necessitating urgent adaptive conservation strategies. This study investigates the combined impacts of climate change and border fencing on Khulan distribution and migration patterns. Using an ensemble species distribution models (eSDMs) implemented in BIOMOD2, completed with least-cost paths (LCP) analysis, we simulated current and future habitat suitability under multiple climate scenarios (SSP126, SSP370, and SSP585) and identified potential ecological corridors. Our findings include: (1) Habitat loss: projections indicate a > 30 % decline in suitable Khulan habitat under all future climate scenarios compared to current conditions. (2) Environmental drivers: temperature variability and water availability as the primary factors shaping habitat suitability. (3) protected area inadequacy: existing nature reserves currently cover only 16.81 % of suitable habitats, with future projections dropping to 9.56 % - 12.68 %, leaving vast critical habitats unprotected. (4) Migration barriers and connectivity solutions: the China-Mongolia border fence severely disrupts Khulan movement, exacerbating habitat fragmentation. We identified 64 potential ecological corridors, including 13 transboundary pathways, to link 17 core habitats and mitigate fragmentation effects. These results underscore the need for transboundary conservation efforts and adaptive management strategies to safeguard Khulan populations under escalating climatic and anthropogenic pressures.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"60 ","pages":"Article e03593"},"PeriodicalIF":3.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844951","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}
Mikaeylah J. Davidson , Lee Berger , Amy Aquilina , Melissa Hernandez Poveda , Daniel Guinto , Michael McFadden , Deon Gilbert , Damian Goodall , Kyall R. Zenger , Lee F. Skerratt , Tiffany A. Kosch
{"title":"Exposure to low doses of Batrachochytrium dendrobatidis reveals variation in resistance in the Critically Endangered southern corroboree frog","authors":"Mikaeylah J. Davidson , Lee Berger , Amy Aquilina , Melissa Hernandez Poveda , Daniel Guinto , Michael McFadden , Deon Gilbert , Damian Goodall , Kyall R. Zenger , Lee F. Skerratt , Tiffany A. Kosch","doi":"10.1016/j.gecco.2025.e03587","DOIUrl":"10.1016/j.gecco.2025.e03587","url":null,"abstract":"<div><div>Emerging infectious diseases, such as chytridiomycosis caused by <em>Batrachochytrium dendrobatidis</em> (Bd), pose a significant extinction threat to amphibians, including the Critically Endangered southern corroboree frog (<em>Pseudophryne corroboree</em>). Understanding phenotypic variation in Bd susceptibility is important for developing and applying novel conservation strategies, such as selective breeding, to enhance disease resistance and support population recovery. In one of the largest experimental Bd challenge studies to date, we exposed 972 juvenile <em>P. corroboree</em> bred to represent the extant genetic diversity of the species, encompassing all 15 historical populations. Across three replicate experiments, survival rates ranged from 44 % to 74 %, with frogs from one zoo exhibiting higher mortality. Notably, 21–47 % of Bd-exposed frogs remained uninfected, suggesting significant phenotypic variation in disease resistance in this population. Among infected frogs, disease progression varied, with most reaching terminal stages within 69 days (range: 33–97 days), though a few individuals maintained stable infection loads without developing clinical chytridiomycosis. Experimental factors, such as age, size, and body condition, did not consistently predict survival or infection rates across experiments. While younger and smaller frogs were generally more susceptible, the effects of these factors varied across replicates, highlighting the importance of large sample sizes and repeated experiments to capture phenotypic variation in susceptibility. These findings suggest that a subset of <em>P. corroboree</em> may possess the capacity to resist or tolerate low-dose Bd exposure, offering potential for selective breeding programs to improve conservation outcomes. The dataset generated from this study will be instrumental in guiding breeding strategies that strengthen conservation efforts for this critically endangered, iconic amphibian.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"60 ","pages":"Article e03587"},"PeriodicalIF":3.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882686","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}
David Sánchez-Fernández , Alba Jiménez-Jiménez , Richard Fox , Roger L.H. Dennis , Jorge M. Lobo
{"title":"Identifying biodiversity hotspots over time: Stability, sampling bias, and conservation implications","authors":"David Sánchez-Fernández , Alba Jiménez-Jiménez , Richard Fox , Roger L.H. Dennis , Jorge M. Lobo","doi":"10.1016/j.gecco.2025.e03586","DOIUrl":"10.1016/j.gecco.2025.e03586","url":null,"abstract":"<div><div>The conservation of biodiversity is a major challenge facing society. In order to design effective conservation strategies, we must be able to identify the areas in which biodiversity is concentrated (i.e., biodiversity hotspots). However, observed patterns of species richness are often heavily biased by sampling effort, undermining the reliability of hotspot detection. Therefore, it is important to understand how the location of identified hotspots varies over time as knowledge about the identity and distribution of species increases. Using what is likely the most comprehensive insect database in the world (the butterflies of Great Britain), we examine the survey effort achieved over time, estimating the degree of congruence in the identification of butterfly biodiversity hotspots at different time intervals. This congruence is low over much of the 215-year period studied, remaining so for hotspots based on a rarity metric even after 1980, when the inventories were already relatively complete. The location of hotspots based on species richness has been more stable in recent decades, reflecting one the more complete sampling coverage in these years. These results highlight the risk of misidentifying biodiversity hotspots based on inadequate data and point to the need for greater sampling effort for insects to improve inventories before identifying and proposing areas for conservation. This study has significant implications for biodiversity conservation, as it provides insights into the usefulness of identifying priority areas based on incomplete inventories, such as those we currently have worldwide.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03586"},"PeriodicalIF":3.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830119","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}
Fangyuan Bu , Zhijun Dai , Xuefei Mei , Ao Chu , Jinping Cheng , Ling Lan
{"title":"Machine learning-based mapping wetland dynamics of the largest freshwater lake in China","authors":"Fangyuan Bu , Zhijun Dai , Xuefei Mei , Ao Chu , Jinping Cheng , Ling Lan","doi":"10.1016/j.gecco.2025.e03585","DOIUrl":"10.1016/j.gecco.2025.e03585","url":null,"abstract":"<div><div>Lake wetlands are critical components of freshwater ecosystems, providing crucial roles in water regulation and biodiversity conservation. However, these lake wetlands are experiencing pervasive and often irreparable losses due to anthropogenic activities and climate change. This study utilizes remote sensing imagery from 1987 to 2023 based on a machine learning technique to analyze the dynamic changes in the wetlands of Poyang Lake, the largest freshwater lake in China. The results revealed a substantial decline in Poyang's wetland area, totaling 242.71 km<sup>2</sup> over the study period. The mudflat areas within the wetlands demonstrated a marked reduction of 64 %, equating to a loss of 617.60 km², predominantly in the northern zone of the lake. In contrast, vegetation coverage increased significantly by 36 %, rising from 1035.32 km² in 1987 to 1411.99 km² in 2023, characterized by a net gain of 361.05 km² primarily due to the encroachment of mudflats. Increases in rainfall have expanded water bodies in dish-shaped lakes, encroaching on the transitional mudflat areas, thus exacerbating wetland degradation. Additionally, intensified human activities, particularly the construction of the Three Gorges Dam, have profoundly altered the river-lake topography gradient and enhanced Poyang Lake’s discharge capacity into the Changjiang River. This alteration appears to be a primary driver of the observed vegetation expansion. Concurrently, reservoir construction within the Poyang Lake basin has trapped water and sediment, and sand extraction within the lake basin has water and sediment entrapment, exacerbated by sand extraction activities that have directly diminished mudflat areas. The present work highlights the ongoing degradation trends of lake wetlands and elucidates the driving forces behind the evolution of Poyang Lake, providing valuable insights for management and conservation strategies aimed at promoting the restoration and sustainable development of lake wetlands.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03585"},"PeriodicalIF":3.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833471","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}
{"title":"Does the Zhenbei seamount in the South China Sea harbor distinctive biodiversity? A primary study based on eDNA metabarcoding","authors":"Xiaofei Chen , Hui Jia , Hui Zhang","doi":"10.1016/j.gecco.2025.e03590","DOIUrl":"10.1016/j.gecco.2025.e03590","url":null,"abstract":"<div><div>The South China Sea is one of the regions with the richest marine biodiversity in the world, featuring a variety of ecological environment such as deep-sea plains, seamounts, and cold springs. Currently, studies on the biodiversity of the South China Sea seamounts are relatively limited, and the seamount effect is still debated. In this study, we used environmental DNA metabarcoding to analyze data from three biological communities in the Zhenbei seamount. We studied the biodiversity and environmental factors in this area and compared the data with those of deep-sea plains and cold spring areas to analyze the biological uniqueness and seamounts diversity. A total of 158 species of phytoplankton, 147 invertebrates, and 82 fish species were identified in the area. The abundance of invertebrates and fish in the Zhenbei seamount was high, with invertebrates showing obvious spatial differences, while the distribution of fish communities exhibited stability. However, phytoplankton community richness was quite low and declined exponentially with depth, attributed to seamounts disturbing the direction and speed of ocean currents, resulting in local eddies and upwelling that changed nutrient availability at different depths. The composition of biological communities in the deep-water area also verifies this view. Our work highlighted the impact of the Zhenbei seamount on community diversity, supporting the long-standing hypothesis that the seamount is a hotspot for species diversity, and provided technical support and knowledge for further exploitation and biodiversity conservation of the seamount.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03590"},"PeriodicalIF":3.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830120","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}
Sze Wing Yiu , Justin P. Suraci , Grant Norbury , Alistair S. Glen , Joanne E. Peace , Patrick M. Garvey
{"title":"Problematic cats in urban reserves: Implications for native biodiversity and urban cat management","authors":"Sze Wing Yiu , Justin P. Suraci , Grant Norbury , Alistair S. Glen , Joanne E. Peace , Patrick M. Garvey","doi":"10.1016/j.gecco.2025.e03584","DOIUrl":"10.1016/j.gecco.2025.e03584","url":null,"abstract":"<div><div>Predation by domestic cats (<em>Felis catus</em>) contributes to the extinction and decline of native species worldwide. Managing these cats is challenging in urban environments because they are valued as companion animals. We quantified cat behaviour in six urban reserves with high biodiversity values across the three largest New Zealand cities using camera traps, in an effort to understand cat impacts on urban biodiversity. Individual cats were identified and their detection rates and diel activity patterns analysed. To assess cat impacts on ground nesting birds, we also monitored the nests of the endangered northern New Zealand dotterel (<em>Charadrius obscurus aquilonius</em>). The minimum number of cats intruding into the reserves was high (ranging from 7 cats in 8 ha to 98 cats in 70 ha), and cats were active both day and night. Behaviour varied greatly among individual cats. Some cats intruded much more frequently than others, and these were the only individuals preying on native birds. One cat visited dotterel nests every night. Hatching or fledging failed at all the nests that were visited by this cat, even though the nests were not depredated. Our study shows that some cats impact native species more than others, and that identifying and targeted management of these problematic cats could be an effective approach if management of the general population is not feasible. The densities of domestic cats that allow native wildlife to thrive in urban environments is a significant knowledge gap that needs to be addressed.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"60 ","pages":"Article e03584"},"PeriodicalIF":3.5,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878785","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}
{"title":"The impact of toe-clipping on animal welfare in amphibians: A systematic review","authors":"Miriam A. Zemanova , Raquel Lázaro Martín , Cathalijn H.C. Leenaars","doi":"10.1016/j.gecco.2025.e03582","DOIUrl":"10.1016/j.gecco.2025.e03582","url":null,"abstract":"<div><div>Amphibians, the animal class most threatened by extinction, are frequently studied in order to provide insights informing conservation efforts. This research regularly requires the capture and marking of individual animals or tissue sampling for genetic analyses. A common technique for both marking and collecting DNA from amphibians is toe-clipping, which involves cutting off a portion of one or more toes. Toe-clipping is relatively fast and cheap, but it might have a negative impact on animal welfare. However, results from studies investigating the impact of toe-clipping have been variable; while some studies have reported no effect on movement, survival, or stress levels, other studies showed the opposite. Therefore, the aim of this review was to evaluate all currently available evidence of the potential animal welfare impact of toe-clipping amphibians in a systematic manner. We searched the Web of Science, BioOne, and Agricola databases for relevant studies. Studies were incorporated into the review if they included original empirical data derived from experiments conducted on amphibians, evaluated the impact of toe clipping on welfare-related outcomes, and used either a suitable control group (no intervention or handling only), or compared outcomes in the same group before and after toe-clipping. Conference proceedings, reviews, non-peer-reviewed publications, informal reports and research employing co-interventions that might have affected the results were systematically excluded. The quality of the studies was evaluated with an augmented version of the SYstematic Review Centre for Laboratory animal Experimentation (SYRCLE)’s bias risk assessment tool for animal studies. In total, 14 relevant articles were identified and included in this review. The methodological design of these articles and their outcome measures showed considerable heterogeneity, and we observed an unclear or substantial risk of bias across all examined studies. Consequently, and in line with our protocol, no meta-analysis was performed and the evidence was narratively synthesised. Furthermore, none of the studies included a power or sample size calculation. Among 44 welfare-related outcomes assessed, we identified evidence indicating discomfort associated with toe-clipping, manifested as decreased jump distance immediately after toe-clipping, elevated corticosterone and decreased testosterone levels in urine, as well as long-term repercussions reflected in lower daily weight gain. Nevertheless, the existing evidence is too scarce and the methodological design of available studies too heterogeneous to reliably conclude that there is a welfare impact of toe-clipping amphibians. Since the quality of the current evidence remains questionable, there is a critical need for adequately powered, high-quality studies that report reliable and pertinent outcome measures to accurately determine the effects of this still popular marking and sampling method. Until more robust","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03582"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821575","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}
Miyabi Nakabayashi , Tomoko Kanamori , Aoi Matsukawa , Joseph Tangah , Augustine Tuuga , Titol Peter Malim , Henry Bernard , Abdul Hamid Ahmad , Ikki Matsuda , Goro Hanya
{"title":"Behavioral response of Bornean ungulates, including bearded pigs and sambar deer, to anthropogenic disturbance in Sabah, Malaysia","authors":"Miyabi Nakabayashi , Tomoko Kanamori , Aoi Matsukawa , Joseph Tangah , Augustine Tuuga , Titol Peter Malim , Henry Bernard , Abdul Hamid Ahmad , Ikki Matsuda , Goro Hanya","doi":"10.1016/j.gecco.2025.e03580","DOIUrl":"10.1016/j.gecco.2025.e03580","url":null,"abstract":"<div><div>Understanding wildlife behavioral responses to anthropogenic disturbance is crucial for assessing its effects and managing protected areas. We used camera traps to investigate the behavioral responses of two of the most frequently hunted Bornean ungulate species, bearded pigs (<em>Sus barbatus</em>) and sambar deer (<em>Rusa unicolor</em>), to anthropogenic disturbance in three protected areas in Sabah, Malaysia, that have varying levels of human activity. We found that human activities generally influence the activity patterns of both ungulates, albeit with variations among the sites. Temporal activity levels of both species would be affected by anthropogenic disturbance; temporal activity levels of bearded pigs were generally low where poaching of this species is reported and both species reduced their activity during daytime, the period of highest probability of encountering humans. Bearded pigs approached plantations during times of low human activity, presumably to forage, indicating that they adjust their spatiotemporal activity patterns to minimize human contact. Conversely sambar deer approached plantations when humans were active during the daytime, suggesting acclimation to non-lethal human contact to maximize energy intake. We observed a reduction in active times for both species at sites of high anthropogenic disturbance. Despite these challenges, both species demonstrated behavioral adaptability to anthropogenic disturbance by utilizing artificial environments such as roads and oil palm plantations probably as foraging places, thereby potentially compensating for reduced active times especially for feedings. Our study underscores the negative impact of human activities on the activity patterns of these two ungulate species. Meanwhile, they showed behavioral plasticity to anthropogenic disturbance by utilizing food resources in artificial environments efficiently. Our findings highlight the need for additional research into the behavioral responses of ungulates in Southeast Asia.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03580"},"PeriodicalIF":3.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833699","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}
{"title":"Spatial clustering analysis combined with ensemble modeling identified potential coastal conservation hotspots of White-eyed gulls in the Red Sea","authors":"Mohanad Abdelgadir , Monif AlRashidi , Randa Alharbi , Abdulaziz S. Alatawi","doi":"10.1016/j.gecco.2025.e03581","DOIUrl":"10.1016/j.gecco.2025.e03581","url":null,"abstract":"<div><div>The islands and coastal habitats of the Red Sea are home to diverse and endemic animal species. However, the current and future conservation status of these species remains unclear. One such species is the White-eyed gull (<em>Ichthyaetus leucophthalmus</em>), an endemic seabird of the Red Sea region that nests on the ground during the hottest months, from June to August. Despite the species' current state of knowledge, there is limited information about its biogeography and spatial distribution in response to ongoing climatic changes in the Red Sea region. In this study, we used a spatial clustering analysis combined with an ensemble modeling approach to predict the coastal distribution and identify potential hotspots for the White-eyed gull. We utilized two sets of current environmental variables and future climatic scenarios for the year 2050 derived from both marine and terrestrial domains. Our analysis identified 13 potential hotspots that are crucial for the conservation of the White-eyed gull. Our findings reveal that climate change is likely to significantly impact the spatial distribution of the White-eyed gull, potentially reducing its current suitable habitats and shifting its range further into the northern Red Sea and possibly to the Mediterranean Sea. Additionally, our models, which integrate marine and terrestrial variables, predict the biogeography of the White-eyed gull with 88–95 % accuracy. Our spatial clustering analysis combined with an ensemble modeling approach can inform conservation and management strategies for coastal areas identified as suitable habitats for the White-eyed gull. Furthermore, it has the potential to be applied to other seabird species with similar habitat requirements in the Red Sea region and beyond.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03581"},"PeriodicalIF":3.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821544","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}
Lixia Chen , Chen-Yang Liu , Yachang Cheng , Guoxiang Yu , Ge Sun , Lei Zhu , Hongxing Jiang , Yang Liu
{"title":"The influence of climate change on the autumn migration timing of three common migratory raptors in East Asia","authors":"Lixia Chen , Chen-Yang Liu , Yachang Cheng , Guoxiang Yu , Ge Sun , Lei Zhu , Hongxing Jiang , Yang Liu","doi":"10.1016/j.gecco.2025.e03578","DOIUrl":"10.1016/j.gecco.2025.e03578","url":null,"abstract":"<div><div>Many bird species have shown temporal changes in their migration phenology due to global warming. The phenomenon of bird species advancing their spring phenology in response to warmer spring temperatures is well-documented and extensively studied. However, autumn phenology, a crucial component of the migrating birds’ annual cycle, has garnered less attention. In contrast to spring phenology, which often exhibits consistent timing changes across the majority of species, the timing of autumn migratory events is subject to greater variability. In this research, we explored the trends in autumn migration and the impact of climate change on these patterns. Our analysis was grounded in a 39-year dataset of bird-banding records from the Changdao Raptor Migration Observatory in China, a key migration bottleneck for East Asian-Australasian Flyway. The dataset encompassed three prevalent migratory raptors: the Oriental Scops Owl (<em>Otus sunia</em>), the Japanese Sparrowhawk (<em>Tachyspiza gularis</em>), and the Eurasian Sparrowhawk (<em>Accipiter nisus</em>). Our analysis showed that the autumn migration timing for these three prevalent raptors has been significantly influenced by climatic changes occurring at both the breeding and stopover sites. The median passage dates for the Oriental Scops Owls and Japanese Sparrowhawks advanced significantly, whereas the Eurasian Sparrowhawks delayed their passage date significantly. The Eastern Atlantic/Western Russia Index, the North Atlantic Oscillation, and the local weather dynamics along the migration route played pivotal roles in shaping the autumn migration timings of the three common raptors. In summary, our findings, based on extensive long-term ringing data, reveal distinct temporal trends in the autumn migration patterns of three small raptors in Asia, highlighting the pivotal climate indices linked to these trends.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"59 ","pages":"Article e03578"},"PeriodicalIF":3.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821552","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}