Global Ecology and Conservation最新文献_第9页

Joint effects of hydrothermal conditions and phenological events on autumn vegetation senescence across the Mongolian plateau 热液条件和物候事件对蒙古高原秋季植被衰老的共同影响

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-26 DOI: 10.1016/j.gecco.2025.e04048

Jinyuan Ren , Siqin Tong , Gang Bao , Dorjsuren Altantuya , Xiangqian Li , Hong Ying , Li Mei , Xiaojun Huang , Yuhai Bao

On the Mongolian Plateau, the autumn phenology of vegetation plays a key role in ecosystem functioning and biodiversity conservation in drylands. Understanding its multifaceted driving mechanisms is essential for predicting ecosystem resilience under global change. This study innovatively couples hydrothermal dynamics with key phenological phases, systematically revealing the multi-factor driving mechanisms of vegetation end of the growing season (EOS) from 1982 to 2022, filling a critical gap in long-term research on senescence period responses. The results indicate that the driving mechanisms for EOS changes are drought-induced advancement and temperature-induced retardation. In most areas, the impact of temperature on the vegetation growth rate (EOS) is more significant than that of drought conditions. At the same time, EOS showed a positive correlation with the peak of the growing season (POS) and a negative correlation with the start of the growing season (SOS). Compared to temperature and drought conditions, the key phenological period has a stronger effect on EOS. Furthermore, structural equation modeling and preseason factor analysis suggest a coordinated process-based mechanism underlying EOS variability. Specifically, climate factors jointly regulate SOS, which then propagates through a “SOS, POS, EOS”cascade to determine the final timing of senescence. In this process, POS is identified as the direct determinant of EOS, while the senescence duration (SD) emerges as a key modulator under drought conditions. This study clarifies and identifies the mechanisms through which these factors drive changes in EOS, and enhance our understanding of vegetation management and climate adaptation strategies in the region.

蒙古高原植被秋季物候在旱地生态系统功能和生物多样性保护中起着关键作用。了解其多方面的驱动机制对于预测全球变化下的生态系统恢复能力至关重要。本研究创新性地将热液动力学与关键物候相结合，系统揭示了1982 - 2022年植被生长季末（EOS）的多因素驱动机制，填补了长期研究衰老期响应的关键空白。结果表明，EOS变化的驱动机制是干旱诱导的推进和温度诱导的滞后。在大多数地区，温度对植被生长率（EOS）的影响大于干旱条件。同时，EOS与生长季高峰（POS）呈正相关，与生长季开始（SOS）呈负相关。与温度和干旱条件相比，关键物候期对EOS的影响更大。此外，结构方程模型和季前因子分析表明，EOS变异的机制是基于协调过程的。具体来说，气候因素共同调节SOS，然后通过“SOS， POS， EOS”级联传播，以确定衰老的最终时间。在此过程中，POS被认为是EOS的直接决定因素，而衰老持续时间（SD）则是干旱条件下的关键调节因子。本研究阐明并确定了这些因素驱动生态系统变化的机制，增强了我们对该地区植被管理和气候适应策略的认识。

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引用次数: 0

Reintroduction of platypuses to the Royal National Park: Survival and early establishment dynamics 鸭嘴兽重新引入皇家国家公园：生存和早期建立动态

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-20 DOI: 10.1016/j.gecco.2025.e04036

Patrick J. Giumelli , Gilad Bino , Tahneal Hawke , Dion Iervasi , Richard T. Kingsford

Conservation translocations aim to improve the long-term viability of species in decline, yet many fail due to problems in post-release survival and establishment. The platypus (Ornithorhynchus anatinus), a semi-aquatic mammal endemic to eastern Australia, faces threats including habitat degradation, fragmentation, and hydrological change, contributing to the risk of population declines and local extinctions. In May 2023, ten platypuses were reintroduced into the Royal National Park (RNP), New South Wales, where the species had been extirpated 20–50 years earlier. We monitored post-release survival, movements, and establishment behaviours over 12 months. Nine individuals were confirmed alive after one year, with estimated annual survival rates of 0.83 for females and 1.00 for males. Individuals displayed a period of initial exploration, with daily movement distances up to 17 km, before establishing home ranges within 2–3 months post-release. Average daily movement declined after 2–4 months in females and 2–5 months in males. Evidence of breeding—including behavioural patterns consistent with nesting and the capture of a juvenile female—confirmed early reproductive success. Our findings confirm the feasibility of platypus translocation and provide valuable insight into post-release establishment processes for a semi-aquatic mammal in a linear freshwater habitat.

保护易位的目的是提高濒危物种的长期生存能力，但由于放生后的生存和建立问题，许多易位失败了。鸭嘴兽（Ornithorhynchus anatinus）是澳大利亚东部特有的半水生哺乳动物，面临栖息地退化、破碎化和水文变化等威胁，导致种群数量下降和局部灭绝的风险。2023年5月，10只鸭嘴兽被重新引入新南威尔士州的皇家国家公园（RNP），该物种在20-50年前已经灭绝。在12个月的时间里，我们监测了释放后的生存、运动和建立行为。1年后确认存活9只，雌虫年存活率为0.83，雄虫年存活率为1.00。个体表现出一段初步的探索期，每天的移动距离可达17 公里，在释放后的2-3 个月内建立了家园。女性和男性的平均每日活动量在2-4个月和2-5个月后下降。繁殖的证据——包括与筑巢一致的行为模式和捕获一只幼年雌性——证实了早期繁殖的成功。我们的研究结果证实了鸭嘴兽易位的可行性，并为半水生哺乳动物在线性淡水栖息地的释放后建立过程提供了有价值的见解。

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引用次数: 0

Demographic response of Rana uenoi to land use near breeding sites: A case study from the Gayasan region, South Korea Rana unenoi对繁殖地点附近土地利用的人口反应：来自韩国加亚山地区的案例研究

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-18 DOI: 10.1016/j.gecco.2025.e04027

Hyun Kim , Hyun-Tae Kim , Na-Yeong Kim , Soo-Dong Lee , Jared D. Wolfe

Amphibians are highly sensitive to habitat disturbance because of their permeable skin and reliance on both aquatic and terrestrial environments. To evaluate how human-driven land-use change affects a forest-stream amphibian, we analysed long-term population dynamics of Rana uenoi in the Gayasan region of South Korea, with a focus on breeding habitats. Between 2007 and 2023, annual egg-mass surveys were conducted at 14 breeding sites, and land-use composition was extracted each year within a 500 m buffer from national geospatial databases. Land-use categories were reclassified into ecologically relevant groups (breeding, high-quality, low-quality and non-living/high-mortality habitats) and their areas were quantified for use in regression models. Breeding populations persisted at four focal sites, where annual egg-mass counts declined by up to 98.5 % over 17 years and breeding ceased entirely at the remaining ten sites. At the four persistent sites, a multiple regression model relating log₁₀-transformed egg-mass counts to habitat composition and site identity explained a large proportion of the variation in reproductive output. Breeding habitats (wetlands and rice paddies) and high-quality habitats (forests) were positively associated with egg-mass production, whereas non-living/high-mortality habitats (roads, urban and barren land) tended to have negative or non-significant effects once other covariates were included. Low-quality habitats (cultivated fields and artificial grasslands) showed weaker and context-dependent associations. Model comparisons indicated that land-use variables alone provided stronger explanatory power than models including breeding-season climate, and time-series analyses showed no strong directional trend in temperature or precipitation over the study period. Although other unmeasured factors may also contribute to declines, our results underscore the predictive value of habitat-specific land-use metrics and highlight the importance of maintaining wetland-forest mosaics and limiting new road and urban development within a few hundred metres of breeding sites to support R. uenoi populations.

两栖动物对栖息地干扰非常敏感，因为它们的皮肤具有渗透性，并且依赖于水生和陆地环境。为了评估人类驱动的土地利用变化对森林溪流两栖动物的影响，我们分析了韩国加亚山地区Rana uenoi的长期种群动态，重点研究了繁殖栖息地。2007年至2023年间，在14个繁殖地点进行了年度卵质量调查，并从国家地理空间数据库中提取了500 m缓冲区内的土地利用组成。土地利用类别被重新划分为生态相关组（繁殖、优质、低质量和非生活/高死亡率生境），其面积被量化用于回归模型。繁殖种群在四个焦点地点持续存在，在17年中，每年的蛋质量下降了98.5% %，其余10个地点完全停止了繁殖。在四个持久的地点，将对数0转换的卵质量计数与生境组成和地点特征联系起来的多元回归模型解释了繁殖产出的很大一部分变化。繁殖栖息地（湿地和稻田）和优质栖息地（森林）与产卵量呈正相关，而非生命/高死亡率栖息地（道路、城市和贫瘠土地）往往具有负面或不显著的影响，一旦包括其他协变量。低质量生境（耕地和人工草地）的相关性较弱，且与环境有关。模型比较表明，单独使用土地利用变量的解释能力强于包括繁殖季节气候在内的模型，时间序列分析显示温度和降水在研究期间没有很强的方向性趋势。尽管其他未测量的因素也可能导致种群数量的下降，但我们的研究结果强调了特定栖息地土地利用指标的预测价值，并强调了维持湿地-森林马赛克以及在繁殖地数百米范围内限制新道路和城市发展以支持野田鼠种群的重要性。

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引用次数: 0

Livelihood vulnerability and human wildlife conflict in Nepal’s lowland protected areas 尼泊尔低地保护区的生计脆弱性与人类野生动物冲突

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-13 DOI: 10.1016/j.gecco.2025.e04029

Sujata Shrestha, Uttam Babu Shrestha, Prience Shrestha, Suraj Joshi

Human wildlife conflict (HWC) has emerged as a serious challenge, particularly in low-income countries where protected areas and human settlements overlap, affecting both biodiversity and human well-being. Although HWC generally cause economic losses, disrupt food security and exert socio-psychological pressures on local people, it also negatively affects wildlife populations by increasing retaliatory killings and threatening the survival of endangered species. Nevertheless, the ways in which HWC shapes the local livelihoods of already vulnerable communities remain underexplored. To address this gap, we analysed HWC incident data and vulnerability indicators from 92 municipalities surrounding protected areas (PAs) in Nepal’s lowland Tarai region. Using both the Livelihood Vulnerability Index (LVI) and an IPCC-based vulnerability framework, we assessed the extent to which HWC contributes to overall livelihood vulnerability. We found that while municipalities adjacent to PAs indeed experience higher livelihood vulnerability, the direct contribution of HWC—though significant at the local level—is relatively modest compared to socio-economic and environmental drivers. These findings highlight HWC as an integral part of broader socio-ecological processes, closely linked with livelihood insecurity, poverty, limited access to services and climate stresses. Addressing HWC, therefore, requires a holistic, multi-sectoral approach that goes beyond reactive, species-specific mitigation to incorporate livelihood diversification, strengthen social safety nets, improved access to basic services, and climate-resilient development pathways. We recommend that future conservation and adaptation programs should adopt integrated socio-ecological frameworks that prioritize community-based conflict mitigation, improve compensation mechanisms, and align wildlife management with national livelihood resilience goals such as Sustainable Development Goals (SDGs) and global biodiversity conservation targets under the Kunming–Montreal Global Biodiversity Framework (GBF).

人类与野生动物冲突（HWC）已成为一项严峻的挑战，特别是在保护区和人类住区重叠的低收入国家，既影响生物多样性，也影响人类福祉。HWC通常会造成经济损失，破坏粮食安全，并给当地人民带来社会心理压力，但它也会增加报复性杀戮，对野生动物种群产生负面影响，威胁到濒危物种的生存。然而，对于HWC如何影响本已脆弱社区的当地生计，仍未得到充分探索。为了解决这一差距，我们分析了尼泊尔低地塔拉伊地区保护区（PAs）周围92个城市的HWC事件数据和脆弱性指标。利用生计脆弱性指数（LVI）和基于ipcc的脆弱性框架，我们评估了HWC对整体生计脆弱性的影响程度。我们发现，虽然保护区附近的城市确实经历了更高的生计脆弱性，但与社会经济和环境驱动因素相比，hwc的直接贡献（尽管在地方层面上意义重大）相对较小。这些发现突出表明，低碳能源是更广泛的社会生态过程的一个组成部分，与生计不安全、贫困、获得服务的机会有限和气候压力密切相关。因此，解决HWC问题需要一种全面的、多部门的方法，超越被动的、针对特定物种的缓解，将生计多样化、加强社会安全网、改善获得基本服务的机会和适应气候变化的发展途径纳入其中。我们建议未来的保护和适应项目应采用综合的社会生态框架，优先考虑以社区为基础的冲突缓解，完善补偿机制，并使野生动物管理与可持续发展目标（sdg）和《昆明-蒙特利尔全球生物多样性框架》（GBF）下的全球生物多样性保护目标等国家生计恢复力目标保持一致。

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引用次数: 0

Diatoms as indicators of eutrophication: Relationship with transparency, total phosphorus and Chlorophyll-a concentration in Central European lakes 硅藻作为富营养化的指示器：与中欧湖泊透明度、总磷和叶绿素-a浓度的关系

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-13 DOI: 10.1016/j.gecco.2025.e04025

Monika Rzodkiewicz , Izabela Zawiska , Miłosz Sobczak

Lakes around the world are increasingly impacted by anthropogenic stressors, from local pollution to global change. Their close interaction with surrounding landscapes makes lakes serve as sensitive indicators of both internal and external disturbances, with their sediments preserving records of these changes. This study investigates the relationship between prevalent diatom taxa in the Central European Diatom training set and key eutrophication indicators: transparency, total phosphorus, and Chlorophyll-a, across 64 lakes from northeastern Poland. These variables were selected because they are routinely measured in lake monitoring programs and are strongly associated with diatom community structure. This study identifies the most abundant species, characterizes their ecological preferences, and highlights taxa most indicative of variations along key environmental gradients. Several taxa, including Cyclostephanos dubius, Stephanodiscus hantzschii, and Lindavia radiosa, are robust indicators of eutrophic environments. Others, such as Asterionella formosa and Aulacoseira ambigua, exhibit broader ecological tolerances, thriving under meso-eutrophic conditions. Taxa like Pantocsekiella comensis and Staurosirella lapponica are characteristic of oligo-mesotrophic lakes. Achnanthes exigua and Geissleria schoenfeldii provide additional insights into identifying early shifts from oligotrophic to mesotrophic conditions. Moreover, we refine the ecological profiles of previously under-characterised taxa, including Diatoma tenuis and Fragilaria voucheriae, which are shown in our research, to prefer mesotrophic conditions. These findings provide novel regionally relevant autecological data for central Europe, where calibrated diatom training sets remain scarce. We believe that these results will contribute significantly to both palaeoenvironmental reconstructions and present lake management decisions in similar limnological contexts.

世界各地的湖泊越来越多地受到人为压力因素的影响，从局部污染到全球变化。它们与周围景观的密切相互作用使湖泊成为内部和外部干扰的敏感指标，其沉积物保存了这些变化的记录。本研究调查了中欧硅藻训练集中常见硅藻类群与波兰东北部64个湖泊富营养化关键指标：透明度、总磷和叶绿素-a之间的关系。之所以选择这些变量，是因为它们在湖泊监测项目中经常被测量，并且与硅藻群落结构密切相关。本研究确定了最丰富的物种，表征了它们的生态偏好，并突出了最能指示关键环境梯度变化的分类群。一些分类群，包括环stephanos dubius， Stephanodiscus hantzschii和Lindavia radiosa，是富营养化环境的有力指标。其他的，如福尔摩沙Asterionella formosa和Aulacoseira ambigua，表现出更广泛的生态耐受性，在中富营养化条件下茁壮成长。comensis Pantocsekiella和Staurosirella lapponica等分类群是低中营养湖泊的特征。紫金螺和雪氏盖氏菌为鉴别从少营养到中营养状态的早期转变提供了额外的见解。此外，我们改进了以前未被充分描述的分类群的生态概况，包括在我们的研究中显示的薄壁硅藻和薄壁Fragilaria voucheriae，更喜欢中营养条件。这些发现为中欧提供了新的区域相关的地质数据，在那里校准的硅藻训练设备仍然稀缺。我们相信这些结果将对古环境重建和类似湖泊环境下的湖泊管理决策有重要贡献。

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引用次数: 0

Deep-sea and deeply vulnerable: Assessing the conservation status of the kitefin shark (Dalatias licha) 深海和极度脆弱：鸢鲨的保护状况评估

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-13 DOI: 10.1016/j.gecco.2025.e04026

W. Medeiros-Leal , M. de Barros , H.G. Silva , O. Crespo-Neto , T.K. Mildenberger , A. Aires-Silva , M. Pinho , R. Santos

Deep-sea ecosystems harbor highly vulnerable species, yet their conservation status remains poorly understood. The kitefin shark (Dalatias licha), a large deep-sea mesopredator, exemplifies this challenge. In the Azores archipelago (Portugal), historical industrial fisheries exploited this species from the 1970s until the late 1990s. The species shows life-history traits typical of low-productivity elasmobranchs, including slow growth, late maturity, and very low intrinsic population growth (5 % per generation). Using fisheries-dependent data, including catch reconstructions (1972–2018), and catch-per-unit-effort, we applied age-structured demographic models and biomass dynamics approaches to assess population status. Our results indicate that past historical exploitation depleted the population, reducing biomass to critically low levels. Although some recovery has been observed since fishery closure, rebuilding is extremely slow, and current biomass remains at only ∼56 % of that expected for a sustainable population. These results highlight the need to recognise the kitefin shark as a highly vulnerable species and to implement precautionary conservation measures, particularly in data-limited deep-sea fisheries.

深海生态系统庇护着高度脆弱的物种，但人们对它们的保护状况知之甚少。风筝鲨（Dalatias licha），一种大型深海中掠食者，就是这种挑战的例证。在亚速尔群岛（葡萄牙），从20世纪70年代到90年代末，历史上的工业渔业对该物种进行了开发。该物种表现出典型的低生产力弹性枝的生活史特征，包括生长缓慢、成熟期晚和极低的内在种群增长率（每代5 %）。利用渔业相关数据，包括渔获量重建（1972-2018）和单位努力渔获量，我们应用年龄结构的人口模型和生物量动力学方法来评估种群状况。我们的研究结果表明，过去的历史开发耗尽了种群，使生物量降至极低的水平。虽然自渔场关闭以来已经观察到一些恢复，但重建非常缓慢，目前的生物量仍然仅为可持续种群预期的约56% %。这些结果突出表明，有必要认识到风筝鲨是一种高度脆弱的物种，并采取预防性保护措施，特别是在数据有限的深海渔业中。

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引用次数: 0

Genetic diversity and population structure of the Chinese endemic Chrysosplenium macrophyllum based on EST-SSR markers 基于EST-SSR标记的中国特有大叶黄的遗传多样性和群体结构

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-12 DOI: 10.1016/j.gecco.2025.e04022

Niyan Xiang , Tao Yuan , Peng Zhan , Tiange Yang , Xitang Chen , Xing Liu , Rui Qin , Hong Liu

Chrysosplenium macrophyllum Oliv., a perennial herb endemic to China, is of notable ecological and medicinal value. Nevertheless, its wild resources are gradually diminishing under the pressure of human activities, including crop cultivation and habitat disturbance. In this study, we investigated the genetic diversity and population structure of 404 individuals from 16 natural populations using twelve EST-SSR markers. Furthermore, ecological niche modeling was applied to predict the potential distribution of the species under past, current, and future climatic conditions. The results revealed a moderate level of genetic diversity in C. macrophyllum, which gradually decreased from west to east and was strongly constrained by temperature. Significant genetic differentiation was detected among populations, while molecular variance analysis indicated that most of the variation occurred within populations. Mantel tests showed that genetic differentiation was not correlated with environmental distance but exhibited a significant positive correlation with geographical distance. Structure analysis, principal coordinate analysis, and NJ clustering consistently divided the 16 populations into five groups, demonstrating a clear geographic structure. MaxEnt modeling further indicated that the current suitable distribution of C. macrophyllum is mainly located in subtropical mountainous regions of China, with altitude, annual precipitation, and isothermality being the key environmental factors, among which annual precipitation defined the northern distribution limit. Under future climatic scenarios, the suitable habitat is projected to slightly expand at the margins of its current range. These findings provide valuable insights for the conservation and sustainable utilization of C. macrophyllum in the context of human-induced climate change.

大叶黄。是中国特有的多年生草本植物，具有显著的生态和药用价值。然而，在人类活动的压力下，包括作物种植和栖息地的干扰，其野生资源正在逐渐减少。本研究利用12个EST-SSR标记对16个自然居群404个个体的遗传多样性和群体结构进行了分析。利用生态位模型预测了该物种在过去、现在和未来气候条件下的潜在分布。结果显示c . macrophyllum中等水平的遗传多样性,从西向东逐渐减少和强烈受到温度的限制。群体间存在显著的遗传分化，而分子方差分析表明，变异主要发生在群体内。Mantel检验表明，遗传分化与环境距离不相关，而与地理距离显著正相关。结构分析、主坐标分析和NJ聚类一致将16个种群划分为5个类群，地理结构清晰。MaxEnt模型进一步表明，目前大叶青的适宜分布主要集中在中国的亚热带山区，海拔、年降水量和等温是影响其分布的关键环境因子，其中年降水量确定了其北部的分布界限。在未来的气候情景下，预计适合的栖息地将在其当前范围的边缘略微扩大。这些发现为在人类活动引起的气候变化背景下对大叶青的保护和可持续利用提供了有价值的见解。

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引用次数: 0

Identifying suitable wildlife reintroduction/reinforcement habitats based on environmental, dietary, and behavioral suitability 根据环境、饮食和行为适宜性确定合适的野生动物再引入/强化栖息地

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-11 DOI: 10.1016/j.gecco.2025.e04023

Jiawei Li , Yuanhang Cheng , Yixuan Hong , Ruizheng Yang , Chen Li , Xijin Hu , Xiong Zhang

Global urbanization is intensifying human-induced ecological crises. As a crucial approach for ecological restoration, reintroduction/reinforcement of keystone species requires precise prediction of suitable release sites. However, current studies often focus solely on environmental suitability while neglecting food resource limitations and home-range requirement. Here we focus on a Critically Endangered keystone species, Chinese pangolin (Manis pentadactyla), in the eastern forests of Shenzhen, a megacity in China. To guide its reintroduction/reinforcement, we integrated three criteria (habitat, dietary, and behavioral suitability) to identify optimal reintroduction/reinforcement sites. We conducted i) field surveys to uncover its existing burrows; ii) prey preference analysis via sampling from the background and foraging burrows; iii) species distribution models to predict habitats for pangolins and preferred preys; and iv) spatial analyses to identify pangolin habitat patches (≥double home range) with preferred prey resources. Results indicated Shenzhen’s pangolins primarily consume six genera of ants (Ectomomyrmex, Diacamma and Polyrhachis) and termites (Macrotermes, Reticulitermes and Odontotermes). We derived robust models for both pangolins and its preys. Predicted habitats of pangolins and preferred preys are very similar, with the major large habitat patches located in the eastern forests and a few western hilly parks where our field surveys did not cover. We successfully identified eight large habitat patches (totally 265 km²) suitable for reintroduction/reinforcement of Chinese pangolins across Shenzhen. Our study is among the first to integrate three critical criteria to identify release sites for keystone species in an urban landscape, providing a reliable map of reintroduction/reinforcement of Chinese pangolins in Shenzhen.

全球城市化加剧了人为造成的生态危机。作为生态恢复的重要手段，关键物种的重新引入/强化需要对合适的放生地点进行精确的预测。然而，目前的研究往往只关注环境适宜性，而忽视了食物资源的限制和家庭范围的要求。在这里，我们关注一种极度濒危的关键物种——中国穿山甲（Manis pentadactyla），它生活在中国大城市深圳的东部森林里。为了指导其重新引入/强化，我们综合了三个标准（栖息地、饮食和行为适宜性）来确定最佳的重新引入/强化地点。我们进行了i)实地调查，以发现其现有的洞穴；Ii)通过背景和觅食洞穴取样分析猎物偏好；Iii)物种分布模型预测穿山甲栖息地和首选猎物；iv)空间分析识别穿山甲栖息地斑块（≥双家距）优选猎物资源。结果表明：深圳穿山甲主要捕食6属蚂蚁（外蚁属、双蚁属和多蚁属）和白蚁（大蚁属、网蚁属和齿蚁属）；我们为穿山甲及其猎物建立了稳健的模型。预测的穿山甲栖息地和首选猎物非常相似，主要的大生境斑块位于东部森林和少数西部丘陵公园，我们的实地调查没有覆盖。我们成功地在深圳地区确定了8个适合中国穿山甲重新引入/强化的大型生境斑块（总面积265 km2）。我们的研究是第一个整合三个关键标准来确定城市景观中关键物种的释放地点的研究之一，为中国穿山甲在深圳的重新引入/强化提供了可靠的地图。

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引用次数: 0

Neighboring forest habitat in blueberry systems reduces patterns of dominance and generates higher seasonal stability of spider communities 在蓝莓系统中，邻近的森林栖息地减少了蜘蛛的优势格局，并产生了更高的蜘蛛群落的季节性稳定性

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-11 DOI: 10.1016/j.gecco.2025.e04019

Sarah M. Rezende , Svoboda V. Pennisi , Jason M. Schmidt

Understanding the dynamics of spider communities within agricultural landscapes is crucial for biodiversity-based pest management. Although often considered habitat generalists, spider communities are partially shaped by environmental filtering and habitat conditions. However, many studies focus only on in-field communities, limiting insights into species sorting across the crop-noncrop interface. In this study, we explore the temporal dynamics of ground-dwelling spider communities collected from pitfall traps in a perennial agroecosystem, blueberry farms. We compared spider diversity and composition across three habitat types: adjacent forest, field edge, and field interior. Our results show that forest patches supported higher richness, greater evenness, and more temporally stable communities compared to commercial blueberry habitats. In contrast, both the field interior and edge were compositionally similar, with a high temporal rate of community change of a few disturbance-tolerant genera. Using Hill numbers, PCoA, and indicator species analysis, we found patterns consistent with strong environmental filtering in disturbed habitats and community persistence in more structurally stable forest patches. These findings underscore the ecological value of adjacent noncrop habitats and support the need to include species and compositional estimates from the habitat matrix around agroecosystems.

了解农业景观中蜘蛛群落的动态对于基于生物多样性的害虫管理至关重要。虽然通常被认为是栖息地的通才，但蜘蛛群落的部分形成是由环境过滤和栖息地条件决定的。然而，许多研究只关注田间群落，限制了对作物-非作物界面物种分选的认识。在这项研究中，我们探讨了从多年生农业生态系统蓝莓农场的陷阱中收集的地面栖息蜘蛛群落的时间动态。我们比较了三种生境类型：邻近森林、野外边缘和野外内部蜘蛛的多样性和组成。研究结果表明，与商业蓝莓栖息地相比，森林斑块支持更高的丰富度、更大的均匀度和更稳定的群落。相反，田间内部和边缘的群落组成相似，少数耐扰动属的群落变化率较高。利用Hill数、PCoA和指示物种分析，我们发现在受干扰的生境中存在强烈的环境过滤，在结构更稳定的森林斑块中存在群落持续性。这些发现强调了邻近非作物生境的生态价值，并支持从农业生态系统周围的生境矩阵中纳入物种和成分估算的必要性。

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引用次数: 0

Abiotic rather than biotic factors predominantly affect ecosystem multifunctionality in semiarid grasslands under changing precipitation 降水变化条件下影响半干旱草原生态系统多功能性的主要是非生物因子而非生物因子

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation

Pub Date : 2025-12-11 DOI: 10.1016/j.gecco.2025.e04021

Lihua Zhang , Pengbin Bao , Quanlin Ma , Xi Wei , Ruifeng Zhao , Tong Zhou , Xiaonuo Guo , Mohan Sun

Global climate change has intensified the uncertainty of precipitation patterns, increased precipitation variations, and profoundly affected the ecosystem multifunctionality (EMF) of semi-arid grasslands. However, the relative contributions of biotic and abiotic factors to EMF under precipitation changes and their mechanisms remain unclear. We conducted a precipitation manipulation experiment initiated in 2013 in the grasslands of the Loess Plateau, and measured ecosystem properties in 2023 after ten years of continuous treatment (±40 %, ±20 %, and 0 %) to examine how biotic (plant diversity and soil microbial diversity) and abiotic (soil water content and soil pH) factors regulate EMF under different precipitation regimes. The results showed that with the increase in precipitation, EMF significantly increased. The positive correlation between plant diversity and EMF was stronger than that between microbial diversity and EMF. Variance decomposition indicated that abiotic factors, especially soil water content (SWC), explained a much larger proportion of EMF changes than biotic factors (20.1 % vs. 1.1 %). The structural equation model further indicated that precipitation also indirectly enhanced EMF by increasing SWC and plant diversity. Soil microbial diversity indirectly affected EMF by regulating plant diversity. An increase in soil pH value was unfavorable for microbial diversity and weakened EMF to a certain extent. We concluded that SWC and plant diversity are the key abiotic and biotic determinants of EMF in semi-arid grasslands, emphasizing the crucial influence of precipitation and the dominant role of abiotic factors.

全球气候变化加剧了降水格局的不确定性，增加了降水变化，深刻影响了半干旱草原生态系统的多功能性。然而，降水变化下生物和非生物因子对电磁场的相对贡献及其机制尚不清楚。我们于2013年在黄土高原草原开展了降水操纵实验，并在连续处理10年后（±40% %、±20% %和0 %）测量了2023年的生态系统特性，以研究不同降水制度下生物（植物多样性和土壤微生物多样性）和非生物（土壤含水量和土壤pH值）因子如何调节EMF。结果表明，随着降水的增加，电磁场显著增大。植物多样性与EMF的正相关强于微生物多样性与EMF的正相关。方差分解表明，非生物因素，尤其是土壤含水量（SWC）对EMF变化的解释比生物因素大得多（20.1 %对1.1 %）。结构方程模型进一步表明，降水也通过增加SWC和植物多样性间接增强了EMF。土壤微生物多样性通过调节植物多样性间接影响EMF。土壤pH值的增加对微生物多样性不利，并在一定程度上减弱了EMF。结果表明，土壤水分和植物多样性是半干旱草原电磁场的主要非生物和生物决定因素，强调了降水的重要影响和非生物因素的主导作用。

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引用次数: 0