Global Ecology and Conservation最新文献

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Quantifying the ecological network dynamics associated with ecological restoration projects: A case study in Southwest China 与生态修复工程相关的生态网络动态量化——以西南地区为例
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-15 DOI: 10.1016/j.gecco.2025.e03744
Jingyang Fan , Shiliang Liu , Wanting Wang , Yetong Li , Yifei Zhao , Gang Wu
{"title":"Quantifying the ecological network dynamics associated with ecological restoration projects: A case study in Southwest China","authors":"Jingyang Fan ,&nbsp;Shiliang Liu ,&nbsp;Wanting Wang ,&nbsp;Yetong Li ,&nbsp;Yifei Zhao ,&nbsp;Gang Wu","doi":"10.1016/j.gecco.2025.e03744","DOIUrl":"10.1016/j.gecco.2025.e03744","url":null,"abstract":"<div><div>Ecological restoration projects have played an important role in curbing current ecological degradation trends, restoring ecological networks, and ensuring regional ecological security. In China, numerous large-scale and high-investment projects have been implemented, emphasizing the concepts of system protection and integrative restoration. However, in the context of ecological restoration at a large scale, how ecological restoration improves the effectiveness of the ecological network is still unclear. To address this issue, we selected the Liuchong River Basin in a typical karst region of Southwest China to assess the ecological network change associated with ecological restoration projects during the period 2016–2018. The Morphological Spatial Pattern Analysis (MSPA) model was applied to identify the ecological sources, the Linkage Mapper tool was used to construct an ecological network, and changes in key features of the ecological network were further quantified. The results showed that there were 32, 26, and 38 ecological source points identified in 2010, 2015, and 2020, respectively. While ecological resistance values remained relatively stable, the number and length of ecological corridors increased significantly, particularly under the influence of the River Channel Regulation Project (RCRP) and the Water Source Restoration Project (WSRP). The α, β, and γ indices increased by 15.31 %, 11.18 %, and 8.33 %, respectively, indicating improved network circuitry, structural accessibility, and node connectivity. These enhancements suggest a shift toward a more integrated and resilient ecological network. Our results suggest that ecological restoration can promote the integrity of ecological networks and has a positive effect on system protection and integrative restoration.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03744"},"PeriodicalIF":3.5,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631166","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
Water table reduction shapes soil nematode communities in Zoige peatlands 若尔盖泥炭地地下水位降低影响土壤线虫群落
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-15 DOI: 10.1016/j.gecco.2025.e03751
Zhengchao Yu , Feng Sun , Mei Wang , Na Li
{"title":"Water table reduction shapes soil nematode communities in Zoige peatlands","authors":"Zhengchao Yu ,&nbsp;Feng Sun ,&nbsp;Mei Wang ,&nbsp;Na Li","doi":"10.1016/j.gecco.2025.e03751","DOIUrl":"10.1016/j.gecco.2025.e03751","url":null,"abstract":"<div><div>The water table of the Zoige peatland has been reduced in recent decades due to climate change and human activities. However, as the biological indicators of soil environment, how the response of soil nematode communities to water table reduction was no clear. In this study, we conducted an in situ field sampling at low, intermediate, and high water table levels (ranging from −72 cm to −18 cm) in the Zoige peatland. The results showed that water table reduction increased the density of bacterivores and decreased the density of fungivores. Nematode diversity also decreased with water table reduction. The nematode channel ratio increased significantly after the water table reduction, indicating that the soil food web was transformed from a fungal-based channel (low decomposition efficiency) to a bacterial-based energy channel (high decomposition efficiency), especially in deep soil (with a maximum increase of 86 %). Structural equation modeling indicated that soil water table reduction had a negative effect on soil water content, thus increasing the abundance of fungivores, bacterivores and herbivores. Soil water table reduction had a positive effect on soil pH, thus increasing bacterivores, but decreasing fungivores. Our results provide substantial evidence for the degradation of Zoige peatland due to water table reduction caused by climate change and anthropogenic disturbance in the future.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03751"},"PeriodicalIF":3.5,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633175","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
Spring drought delayed the stem growth resumption of four broadleaf species in a subtropical forest of China 春季干旱延缓了亚热带森林四种阔叶植物茎的恢复生长
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-14 DOI: 10.1016/j.gecco.2025.e03753
Jing Jiang , Jian Kang , Haiyong Wei , Jinli Tang , Shaowei Jiang , Biyun Yu , Hongxin Su
{"title":"Spring drought delayed the stem growth resumption of four broadleaf species in a subtropical forest of China","authors":"Jing Jiang ,&nbsp;Jian Kang ,&nbsp;Haiyong Wei ,&nbsp;Jinli Tang ,&nbsp;Shaowei Jiang ,&nbsp;Biyun Yu ,&nbsp;Hongxin Su","doi":"10.1016/j.gecco.2025.e03753","DOIUrl":"10.1016/j.gecco.2025.e03753","url":null,"abstract":"<div><div>Adverse effects of frequent extreme drought events on forest growth have been widely reported. Previous studies primarily focused on boreal forests and temperate forests. However, it is unclear how drought affects the cambium phenology and growth rate of trees, particularly subtropical broadleaf trees. Vaganov-Shashkin (VS) models based on tree-ring chronologies were used to simulate cambium phenology data of 4 tree species (<em>Liquidambar formosana, Camphora bodinieri, Choerospondias axillaris, and Machilus nanmu</em>) from 1984 to 2017, and the response of cambium phenology and growth rate to spring drought was studied. The study found no significant changes in cambium phenology and growth rate between 1984 and 2017. Stem recovery was significantly delayed in all species 1–2 years after drought. Only the cumulative growth rate of <em>C. axillaris</em> decreased significantly in the drought year, and drought had no carryover effect on the cumulative growth rate of all tree species. This consistency was primarily due to the higher resistance and recovery. Although individual spring drought events have a delayed effect on cambium phenology, high resilience ensures that all tree species return to pre-drought levels within 2 years after the drought. This study provides an indispensable scientific benchmark for the adaptive management of global subtropical forests, holding profound significance for sustaining the Earth's critical ecosystem services.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03753"},"PeriodicalIF":3.5,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632893","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
Integrating LiDAR and ecological metrics to quantify habitat suitability for the platypus (Ornithorhynchus anatinus) 基于激光雷达和生态指标的鸭嘴兽栖息地适宜性量化研究
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-13 DOI: 10.1016/j.gecco.2025.e03745
Monique Lush , Gilad Bino , Tahneal Hawke , Adrian Fisher , Sarah May
{"title":"Integrating LiDAR and ecological metrics to quantify habitat suitability for the platypus (Ornithorhynchus anatinus)","authors":"Monique Lush ,&nbsp;Gilad Bino ,&nbsp;Tahneal Hawke ,&nbsp;Adrian Fisher ,&nbsp;Sarah May","doi":"10.1016/j.gecco.2025.e03745","DOIUrl":"10.1016/j.gecco.2025.e03745","url":null,"abstract":"<div><div>Understanding habitat selection and population dynamics is critical for the conservation of the platypus (<em>Ornithorhynchus anatinus</em>), a freshwater species endemic to eastern Australia. This study integrated LiDAR-based habitat modelling, radio-tracking, and ecological assessments to examine habitat suitability and social interactions within a semi-wild platypus population in Tidbinbilla Sanctuary, Australian Capital Territory. Live trapping and radio-tracking of 15 individuals documented movements, burrow use, and foraging behaviours, while high-resolution LiDAR data characterised riparian habitat features. The study revealed a high population density of 6.7 platypuses per hectare, with 21 confirmed individuals occupying the Sanctuary’s waterbodies. Over 32 days of tracking, 31 burrows were identified, with individuals using between one and seven burrows, including six shared burrows, one of which housed five individuals concurrently. Burrow-sharing rates were substantially higher than previously reported. Spatial use was clustered into two distinct hotspots, which could not be fully explained by connectivity or prey availability. Instead, central regions were disproportionately favoured, suggesting that resource-independent factors, such as regional centrality and burrow complexity, influenced habitat selection. LiDAR-based habitat suitability models achieved 85 % accuracy in predicting burrow locations, with elevation and foliage projective cover identified as key predictors. Neither food nor burrow availability significantly influenced habitat selection, indicating both were sufficiently abundant. Instead, factors such as regional centrality emerged as key drivers of habitat use. These findings highlight the applicability of LiDAR-based methodologies for assessing habitat suitability in riparian ecosystems and provide a scalable approach for freshwater biodiversity conservation.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03745"},"PeriodicalIF":3.5,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623443","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
Spatiotemporal distribution of negative human-elephant interactions in Wayanad district, Kerala, India 印度喀拉拉邦Wayanad地区人象负面互动的时空分布
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-12 DOI: 10.1016/j.gecco.2025.e03742
Jacqueline Morrison , Mayukh Chatterjee , K. Ramkumar , Sandeep Tiwari , Susan. L. Walker , Scott Wilson , Alexandra Zimmermann
{"title":"Spatiotemporal distribution of negative human-elephant interactions in Wayanad district, Kerala, India","authors":"Jacqueline Morrison ,&nbsp;Mayukh Chatterjee ,&nbsp;K. Ramkumar ,&nbsp;Sandeep Tiwari ,&nbsp;Susan. L. Walker ,&nbsp;Scott Wilson ,&nbsp;Alexandra Zimmermann","doi":"10.1016/j.gecco.2025.e03742","DOIUrl":"10.1016/j.gecco.2025.e03742","url":null,"abstract":"<div><div>Negative human-elephant interactions (HEI) present a significant threat to the long-term conservation of Asian elephant populations and negatively impact the psychological well-being of local communities. The Brahmagiri-Nilgiri Eastern Ghats complex in Kerala is a key landscape for Asian elephant conservation and supports the largest single breeding population across their range. However, negative encounters between people and elephants are increasing in frequency and have become a prominent cause for concern. Despite this, the use of predictive distribution models to map the spatio-temporal patterns of human-elephant interactions across the landscape remains poorly explored. Compiling 1942 individual conflict incidents from compensation records, we dynamically extracted 16 ecological and anthropogenic variables identified in the literature as important drivers of interactions between people and Asian elephants. Using an ensemble modelling framework incorporating 10 algorithms, we constructed predictive distribution models for the wet and dry seasons from 2011 to 2023 to map the spatiotemporal distribution of regions at consistent risk of negative human-elephant interactions. Final consensus models achieved a mean accuracy of 0.91 (AUC) and 0.73 (TSS) respectively and suggested that the top predictor in influencing interactions is human population density. Regions within and adjacent to the Wayanad Wildlife Sanctuaries (I and II) have the highest predicted likelihood of interactions, however risk-level differs according to season. During the dry season, areas including Kidanganad, Nulpuzha, and Pulpalli, within the Kurichiat, Muthanga, and Sulthan Battery Forest ranges, were identified as having the largest land area at risk. Conversely during the wet season, the Tirunelli and Trisshaleri areas in the Tholpetty forest range demonstrated the highest risk. Results provide valuable insights to inform effective mitigation strategies at the landscape-level.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03742"},"PeriodicalIF":3.5,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631165","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
Wildlife crimes and the demographic characteristics of offenders in western Serengeti, Tanzania: A review of court cases 2012–2022 坦桑尼亚塞伦盖蒂西部野生动物犯罪和罪犯的人口特征:2012-2022年法庭案件回顾
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-12 DOI: 10.1016/j.gecco.2025.e03743
Juma J. Kegamba, Adolph A. Siga
{"title":"Wildlife crimes and the demographic characteristics of offenders in western Serengeti, Tanzania: A review of court cases 2012–2022","authors":"Juma J. Kegamba,&nbsp;Adolph A. Siga","doi":"10.1016/j.gecco.2025.e03743","DOIUrl":"10.1016/j.gecco.2025.e03743","url":null,"abstract":"<div><div>Wildlife crimes are significant global threat to conservation, reducing wildlife populations and threatening some species to extinction. In Tanzania, substantial efforts have been made by conservation law authorities and the government to combat these crimes by apprehending suspects and filing cases in various courts throughout the country. Understanding court decisions on wildlife cases filed can provide a broader understanding of how to enhance the current criminal investigations and prosecution system. We reviewed wildlife cases filed by conservation law authorities and registered at Serengeti District Court (SDC) for ten years from January 2012 to June 2022 to assess the wildlife crime charges, the court decisions on the cases filed, and the rudimentary demographic characteristics of the accused. We found that most cases resulted in custodial convictions or noncustodial fines. The average period of incarceration was 8 years, ranging from 6 months for illegal entry into the protected area to 30 years for possession of elephant tusks and rifles. Most court cases were filed during the dry season from June to October, and the general trend indicated a decline in cases filed from 2014 to 2022. Evidence tendered before the court indicated that wildebeest (<em>Connochaetes taurinus</em>) are the most poached species and wire snare entanglement was the most used technique to trap and catch ungulates. Furthermore, the evidence presented and the interview results indicate that poaching was not only a subsistence activity for bushmeat or economic gain, but also involved other ethnozoological aspects. Assessing the declining trend in wildlife cases and the efficacy of the new governmental antipoaching strategies and penalties will require further analysis of data from several different Tanzanian courts.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03743"},"PeriodicalIF":3.5,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631164","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
Seasonal niche overlap and shifts: Implications for coexisting Larimichthys species in the East China Sea 季节生态位重叠与转移:对东海共生Larimichthys物种的启示
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-11 DOI: 10.1016/j.gecco.2025.e03731
Chenxin Zhu , Hui Zhang , Yi Zhang , Yan Jin , Linlin Yang , Zunlei Liu , Jiahua Cheng
{"title":"Seasonal niche overlap and shifts: Implications for coexisting Larimichthys species in the East China Sea","authors":"Chenxin Zhu ,&nbsp;Hui Zhang ,&nbsp;Yi Zhang ,&nbsp;Yan Jin ,&nbsp;Linlin Yang ,&nbsp;Zunlei Liu ,&nbsp;Jiahua Cheng","doi":"10.1016/j.gecco.2025.e03731","DOIUrl":"10.1016/j.gecco.2025.e03731","url":null,"abstract":"<div><div>The large yellow croaker (<em>Larimichthys crocea</em>), a critically endangered marine fish of high economic value in China, suffered severe wild population declines in the 1980s due to overfishing and habitat degradation. Since 2000, habitat protection and large-scale restocking programs have sought to recover this ecologically important species. However, these efforts face ecological challenges, as <em>L. crocea</em> shares habitat and environmental preferences (temperature, salinity, depth) with its sister species, the small yellow croaker (<em>Larimichthys polyactis</em>), raising concerns about interspecific competition. This study quantified their climatic niche overlap using principal component analysis and generalized boosting models, integrating occurrence records and key environmental variables (temperature, salinity, depth, mixed layer thickness) across seasons. Results revealed significant niche overlap, with Schoener’s D values ranging from 0.55 (summer) to 0.66 (winter), indicating heightened competition risks during overwintering periods. <em>L. polyactis</em> exhibited broader niche breadth and greater salinity adaptability, whereas <em>L. crocea</em> displayed niche conservatism, relying on stable coastal habitats (40–70 m depths). Seasonal drivers differed: mixed layer thickness shaped summer distributions, while temperature and sea surface height dominated winter patterns. Overlap zones (4.73 % of the study area) concentrated in Zhejiang’s coastal waters, coinciding with key fishing grounds. Vertical stratification and dietary differences likely reduced direct competition, but <em>L. crocea</em>’s narrow niche breadth increases its vulnerability to environmental change. This study advocates for spatially explicit management, including decreased seasonal fishing effort in high-overlap zones and prioritizing restocking in non-overlapping areas. These findings advance understanding of niche-mediated coexistence in marine ecosystems and provide science-based strategies to balance species recovery with sustainable fisheries.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03731"},"PeriodicalIF":3.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597451","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
Conservation’s green illusion: Nitrogen thresholds as critical determinants of extinction risk in specialist herbivores 保护的绿色错觉:氮阈值是特殊食草动物灭绝风险的关键决定因素
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-11 DOI: 10.1016/j.gecco.2025.e03737
Saroj Shrestha
{"title":"Conservation’s green illusion: Nitrogen thresholds as critical determinants of extinction risk in specialist herbivores","authors":"Saroj Shrestha","doi":"10.1016/j.gecco.2025.e03737","DOIUrl":"10.1016/j.gecco.2025.e03737","url":null,"abstract":"<div><div>Despite decades of habitat-based interventions, the red panda (<em>Ailurus fulgens</em>) remains in steep decline across its Himalayan range. Conservation strategies have emphasized forest cover and connectivity yet overlooked a key physiological constraint: the availability of dietary nitrogen. As obligatory bamboo folivores, red pandas depend on leaves with sufficiently high foliar nitrogen to meet metabolic and reproductive demands, though direct experimental evidence is limited. However, bamboo nitrogen content varies dramatically across species, seasons, elevations, and disturbance gradients. This perspective argues that the absence of nitrogen criteria constitutes a critical blind spot in red panda conservation. Sub-threshold habitats can function as ecological traps, silently undermining translocation, reproduction, and survival even in structurally intact forests. We call for a paradigm shift that integrates foliar nitrogen thresholds into conservation science, landscape planning, and reintroduction protocols. We outline research priorities to (1) establish red panda nitrogen requirements through controlled trials, (2) map nitrogen landscapes using NIRS and remote sensing, and (3) embed nutritional adequacy in habitat policy frameworks. Without this integration, conservation efforts risk being structurally sound but nutritionally void.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03737"},"PeriodicalIF":3.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604472","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
Diversify first! Fatten the tails of phenotypic diversity to enhance adaptive capacity in the Anthropocene 多元化首先!充实表型多样性的尾部,增强人类世的适应能力
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-09 DOI: 10.1016/j.gecco.2025.e03739
Charles H. Cannon , Chai-Shian Kua
{"title":"Diversify first! Fatten the tails of phenotypic diversity to enhance adaptive capacity in the Anthropocene","authors":"Charles H. Cannon ,&nbsp;Chai-Shian Kua","doi":"10.1016/j.gecco.2025.e03739","DOIUrl":"10.1016/j.gecco.2025.e03739","url":null,"abstract":"<div><div>The current pace of environmental change exceeds what most organisms have experienced over the past few million years, with more extreme shifts and events anticipated in the Anthropocene. Emerging environments will include novel combinations of abiotic and biotic conditions, forcing populations and species to either adapt or migrate to avoid extinction. Endogenous mutation rates are slow, particularly as natural populations decline and fragment. Phenotypic plasticity has its limits, particularly at extremes of physiological tolerance. Migration is only effective if appropriate habitat exists within dispersal abilities. Introgressive hybridization, an important element of natural diversification, has been effective means to generate novel vigorous phenotypes. Assisting phenotypic diversification through introgressive hybridization among suites of partially interfertile species could be an effective conservation strategy to enable endangered species to adapt and respond. These suites of species function as a geographically and taxonomically networked syngameon, allowing exchange of advantageous traits, replenishing genetic diversity, and restoring lost ecological and physiological functions. Phenotypic outliers within species - individuals with rare but beneficial traits - are important for maintaining adaptive potential within these networks. Fortunately, species typically maintain their cohesive identities given natural levels of interspecific genetic exchange. Experimental programs and theoretical studies will be essential to explore the impacts of accelerated introgressive hybridization within defined syngameons, with the goals of addressing uncertainties and refining methods. As environmental changes accelerate, promoting phenotypic diversification through hybridization offers a proactive strategy to maintain adaptive capacity. This approach has the potential to safeguard biodiversity and ecosystem functionality through the upcoming biodiversity bottleneck.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03739"},"PeriodicalIF":3.5,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597450","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
Behavioural adaptability of wild geladas (Theropithecus gelada) in human-impacted areas revealed by encounters with free-roaming dogs and potential threats 野生狒狒(Theropithecus gelada)在人类影响地区的行为适应性,通过与自由漫游的狗和潜在威胁的接触揭示
IF 3.5 2区 环境科学与生态学
Global Ecology and Conservation Pub Date : 2025-07-08 DOI: 10.1016/j.gecco.2025.e03738
Luca Pedruzzi , Alice Galotti , Martina Francesconi , Alberto Quartesan , Sheleme Abiyou Gamessa , Bezawork Afework Bogale , Giulio Petroni , Valentina Serra , Alban Lemasson , Elisabetta Palagi
{"title":"Behavioural adaptability of wild geladas (Theropithecus gelada) in human-impacted areas revealed by encounters with free-roaming dogs and potential threats","authors":"Luca Pedruzzi ,&nbsp;Alice Galotti ,&nbsp;Martina Francesconi ,&nbsp;Alberto Quartesan ,&nbsp;Sheleme Abiyou Gamessa ,&nbsp;Bezawork Afework Bogale ,&nbsp;Giulio Petroni ,&nbsp;Valentina Serra ,&nbsp;Alban Lemasson ,&nbsp;Elisabetta Palagi","doi":"10.1016/j.gecco.2025.e03738","DOIUrl":"10.1016/j.gecco.2025.e03738","url":null,"abstract":"<div><div>Studying interactions between domestic species and wild primates is crucial for understanding the impacts of human expansion on wildlife. While free-roaming domestic dogs are one of the most common human-introduced carnivores and pose potential threats to primates, their direct influence on primate behaviour remains largely overlooked. Geladas (<em>Theropithecus gelada</em>), a primate species endemic to Ethiopia's Afro-alpine grasslands with a specialized diet, are facing challenges from habitat loss and interactions with domestic animals throughout their geographical range. Here, we followed 17 gelada group units in an unprotected area of Ethiopia (6-month period, 598 h of observation) and explored their behavioural responses to different natural and human-related threats. We observed strong vigilance in response to the presence of humans chasing nearby groups, as well as in response to dogs and eagles. Other raptors and birds of prey (including vultures and kites) produced no vigilance response, or only a modest one (e.g., augur buzzard). We also report encounters and interactions (n = 16) between dogs and geladas. Although we observed some behaviours associated with agonism and anxiety from both sides, the presence of dogs at close proximity was mainly tolerated. This contrasts with data from populations inhabiting protected areas where geladas typically exhibit flight responses to encounters with dogs. These differences between populations hint at gelada behavioural plasticity to adapt and live in human-impacted environments with limited alternative feeding sites. Increased awareness and documentation of dog-primate interactive events are essential to better grasp the broader implications of human-wildlife coexistence, one of the most important challenges of the Anthropocene.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"62 ","pages":"Article e03738"},"PeriodicalIF":3.5,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589104","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
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