Journal for Nature Conservation最新文献_第9页

Management strategies for ungulate overpopulation in closed ecosystems: A system dynamics approach to Cabañeros National Park (Spain) 封闭生态系统中有蹄类动物种群过剩的管理策略：Cabañeros国家公园（西班牙）的系统动力学方法

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-17 DOI: 10.1016/j.jnc.2025.127130

Ángela Martín-Méndez , Francisco Campuzano-Bolarín

Overabundant ungulate populations in predator-free protected areas always lead to vegetation loss, soil degradation, and disease outbreaks. This study evaluates alternative management strategies for Cabañeros National Park (Spain) following the 2020 hunting ban. Since then, the number of red deer (Cervus elaphus) and wild boar (Sus scrofa) has increased uncontrollably, causing rapid vegetation loss, soil erosion, and the emergence of density-dependent diseases. To conduct this study, a systems dynamics simulation model was developed that integrates ungulate demography, vegetation biomass, and soil quality over a 15-year period (2015–2030). Three scenarios were tested: (i) continued no intervention, (ii) introduction of 10 wolves (Canis lupus signatus) in 2025, and (iii) reinstatement of selective hunting with an annual culling of 15%. Model calibration used monitoring data and literature-based parameter estimates, with sensitivity analyses used to identify key drivers. As a result, ungulate biomass is projected to double by 2030, vegetation cover will decline below ecological thresholds, and soil organic matter will decline irreversibly. Wolf introduction slows population growth but does not allow vegetation recovery within five years. Selective hunting stabilizes ungulate numbers, restores vegetation above the threshold, and halves projected soil loss. Sensitivity analyses highlight ungulate birth rates and hunting rates as the most influential parameters. In conclusion, the model indicates that, under current conditions, regulated hunting is the only proven single-lever policy capable of achieving short-term ecological recovery. The findings provide an evidence-based framework for decision-makers, emphasizing the need for timely intervention to prevent irreversible ecosystem degradation in Mediterranean protected areas.

在没有捕食者的保护区内，数量过多的有蹄类动物总是会导致植被丧失、土壤退化和疾病爆发。本研究评估了2020年狩猎禁令后Cabañeros国家公园（西班牙）的替代管理策略。从那时起，马鹿（Cervus elaphus）和野猪（Sus scrofa）的数量不受控制地增加，导致植被迅速丧失、土壤侵蚀和密度依赖性疾病的出现。为了进行这项研究，开发了一个系统动力学模拟模型，该模型集成了15年（2015-2030年）期间有蹄类人口统计、植被生物量和土壤质量。测试了三种情景：(i)继续不干预，（ii）在2025年引入10只狼（Canis lupus signatus），以及（iii）恢复选择性狩猎，每年淘汰15%。模型校准使用监测数据和基于文献的参数估计，并使用敏感性分析来确定关键驱动因素。因此，预计到2030年有蹄类生物量将翻一番，植被覆盖将下降到生态阈值以下，土壤有机质将不可逆转地减少。狼的引入减缓了种群的增长，但不允许植被在五年内恢复。选择性狩猎稳定了有蹄类动物的数量，使植被恢复到阈值以上，并使预计的土壤损失减半。敏感性分析强调有蹄动物的出生率和狩猎率是最具影响力的参数。综上所述，该模型表明，在当前条件下，有管制的狩猎是唯一被证明能够实现短期生态恢复的单杠杆政策。这些发现为决策者提供了一个基于证据的框架，强调了及时干预以防止地中海保护区生态系统不可逆转退化的必要性。

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引用次数: 0

Public preferences for marine ecological restoration after oil spills: a choice experiment analysis of the 2021 A Symphony oil spill 公众对石油泄漏后海洋生态恢复的偏好：2021年《交响乐团》石油泄漏事件的选择实验分析

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-17 DOI: 10.1016/j.jnc.2025.127136

Juan Liu, Jingmei Li, Yichong Dong

Ecological restoration is a fundamental response to sudden environmental damage caused by oil spills. In addition to promptly repairing affected ecosystems and resources, restoration efforts should also reflect public environmental preferences to compensate for declines in environmental welfare. Identifying these preferences is essential for improving the social acceptability and implementation effectiveness of oil spill restoration policies. This study takes the 2021 A Symphony tanker collision in the Yellow Sea as a case study. A discrete choice experiment with 515 respondents was conducted to evaluate public preferences for key attributes of ecological restoration, and a latent class model was employed to investigate the sources of preference heterogeneity. Results from the random parameter logit model reveal a strong overall preference for ecological restoration. Among the evaluated attributes, improvements in seawater quality are most preferred, followed by the restoration of marine biological resources and sandy coastlines. Based on the results of the latent class model, respondents can be divided into two types: landscape-oriented and ecology-prioritizing. On average, each household is willing to pay 486.058 CNY (USD 68.250) per year to fully repair the environmental damage caused by the oil spill. The landscape-oriented group places greater emphasis on sandy coastline restoration and is more sensitive to associated costs. The ecology-prioritizing group attaches greater importance to the restoration of seawater quality and marine biological resources and is willing to pay a higher price for this. The latter group is characterized by higher education and income levels, prior experience in environmental volunteering, and relatively high trust in the government. These findings provide policymakers with insights into public preferences regarding oil spill restoration, aiding in the development of effective and sustainable oil spill restoration policies.

生态恢复是应对石油泄漏造成的突发性环境破坏的根本对策。除了迅速修复受影响的生态系统和资源外，恢复工作还应反映公众对环境的偏好，以补偿环境福利的下降。确定这些偏好对于提高溢油恢复政策的社会可接受性和执行效率至关重要。本研究以2021年发生在黄海的A Symphony油轮相撞事故为例进行研究。通过对515名受访者的离散选择实验，评估了公众对生态恢复关键属性的偏好，并采用潜在类别模型探讨了偏好异质性的来源。随机参数logit模型的结果显示，总体上对生态恢复有较强的偏好。在评价属性中，海水质量的改善最受青睐，其次是海洋生物资源的恢复和沙质海岸线的恢复。根据潜在分类模型的结果，被调查者可分为景观导向型和生态导向型两种类型。平均每个家庭每年愿意支付486.058元人民币（68.250美元）来全面修复漏油造成的环境破坏。以景观为导向的群体更重视沙滩海岸线的恢复，对相关成本更敏感。生态优先组更重视海水质量和海洋生物资源的恢复，并愿意为此付出更高的代价。后者的特点是受教育程度和收入水平较高，有环境志愿服务经验，对政府的信任度相对较高。这些发现为政策制定者提供了有关溢油修复的公众偏好的见解，有助于制定有效和可持续的溢油修复政策。

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引用次数: 0

Outcomes of wildlife rehabilitation vary by causes of admission for birds and mammals affected by human-wildlife impacts in southeastern Brazil 在巴西东南部，受人类-野生动物影响的鸟类和哺乳动物入院的原因不同，野生动物康复的结果也不同

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-16 DOI: 10.1016/j.jnc.2025.127134

Thaís P. Alencar-Silva , Cristina H. Adania , Jéssica S. Paulino , Jean C.R. Silva , Renato R. Hilário , Karen Mustin , Luís M. Rosalino , William D. Carvalho

Wildlife Rehabilitation Centres are essential for the care, recovery and potential release of wild animals, while also providing valuable information on the impacts of human activities on biodiversity. In this study, we analyzed 12 years of data (2012 to 2023) from the Wildlife Rehabilitation Centre of Associação Mata Ciliar (CRAS-AMC), located in southeastern Brazil. We investigated the monthly variation in the admission of birds and mammals, identified the main causes of admission, and evaluated how these factors influence the outcomes for the animals, including death, permanent captivity or release. A total of 23,441 bird records representing 329 species and 12,395 mammal records from 73 species were analysed. Among birds, the most common causes of admission were illegal trade and removal requests usually made by members of the public in relation to animals in urban areas, with or without injuries, while mammals were most often admitted due to requested removal from urban areas, dog attacks or vehicle collisions. Mortality was the predominant outcome for both birds and mammals, though outcomes varied according to cause, with higher mortality among animals admitted due to collision with vehicle or trafficking, and higher chances of release among those with minor injuries or mistakenly removed from the wild. These findings demonstrate the importance of long-term data collected by Wildlife Rehabilitation Centres to assess threats to wildlife, guide awareness campaigns and support preventive actions. Additionally, such data can inform improvements in the design and operation of current and future facilities. Strengthening these centres is critical for effective wildlife recovery and biodiversity conservation in Brazil, one of the most biologically diverse countries in the world and increasingly affected by anthropogenic pressures.

野生动物康复中心对于野生动物的照料、恢复和可能的释放至关重要，同时也提供有关人类活动对生物多样性影响的宝贵信息。在这项研究中，我们分析了位于巴西东南部的associa o Mata Ciliar野生动物康复中心（CRAS-AMC） 12年（2012年至2023年）的数据。我们调查了鸟类和哺乳动物入库的月度变化，确定了入库的主要原因，并评估了这些因素如何影响动物的结果，包括死亡、永久圈养或释放。共分析了329个物种的23441个鸟类记录和73个物种的12395个哺乳动物记录。在鸟类中，最常见的入境原因是非法交易，以及通常由公众提出的有关城市地区动物的移走要求，无论是否受伤，而哺乳动物最常见的入境原因是要求从城市地区移走，狗袭击或车辆碰撞。死亡是鸟类和哺乳动物的主要结果，尽管结果因原因而异，由于车辆碰撞或贩运而入院的动物死亡率较高，而轻伤或被错误地从野外带走的动物的释放机会较高。这些发现表明，野生动物康复中心收集的长期数据对于评估野生动物面临的威胁、指导提高认识活动和支持预防行动具有重要意义。此外，这些数据可以为改进当前和未来设施的设计和操作提供信息。加强这些中心对于巴西有效的野生动物恢复和生物多样性保护至关重要，巴西是世界上生物多样性最丰富的国家之一，受到人为压力的影响越来越大。

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引用次数: 0

Key issues for advancing knowledge on ecosystem recovery in post-mining, gas and petroleum areas in Colombia: A systematic review 促进哥伦比亚开采后、天然气和石油地区生态系统恢复知识的关键问题：系统审查

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-16 DOI: 10.1016/j.jnc.2025.127135

Andrés Iván Prato PhD student , Vivian Catherine Rueda Díaz PhD student , Amanda de Abreu Anunciação PhD student

The mining sector has been responsible for nearly half of Colombia’s exports over the past decade. As a tropical country with high biodiversity, Colombia still has half of its territory covered by forests. We have analyzed the rehabilitation or restoration techniques used in post-mining, gas and petroleum areas in Colombia’s natural region, which is the first systematic review of scientific articles published until 2024 in six academic databases (Scopus, Web of Science, Scielo, ScienceDirect, EBSCO, and DOAJ). The search recorded a total of 84 case studies, with a focus on metallic mining (∼ 61 %), followed by coal mining (∼ 35 %), non-metallic mining (∼ 2 %), and petroleum (∼ 2 %). No study on gas activity were found. Overall, the use of multiple rehabilitation or restoration techniques and ecological indicators is rare in these studies. The most common techniques in studies on metallic mining were natural regeneration (∼ 49 %) and bioremediation (∼ 37 %), whereas in coal mining studies, they were physical intervention (∼ 59 %) and planting of native species (∼ 48 %). Despite the recent boom in petroleum and gold exploitation in the Amazon and Orinoquía regions, studies in these areas are scarce. However, we found coal mining, where active intervention is predominant, appears to exhibit a more accelerated ecological recovery process, although a longer evaluation period is required. Ecosystem components such as soil, water, as well as organisms other than plants, should be included more frequently in assessments. Our findings provide support for evidence-informed decision-making related to improving the recovery of post-mining and petroleum areas in Colombia.

在过去十年中，采矿业占哥伦比亚出口的近一半。作为一个生物多样性很高的热带国家，哥伦比亚仍有一半的领土被森林覆盖。我们分析了哥伦比亚自然区域开采后、天然气和石油区域使用的恢复或恢复技术，这是对六个学术数据库（Scopus、Web of Science、Scielo、ScienceDirect、EBSCO和DOAJ）中发表的科学文章的首次系统综述。此次检索共记录了84个案例研究，其重点是金属开采（~ 61%），其次是煤炭开采（~ 35%）、非金属开采（~ 2%）、石油开采（~ 2%）。没有发现关于气体活性的研究。总体而言，在这些研究中，使用多种修复或恢复技术和生态指标是罕见的。在金属开采研究中最常见的技术是自然再生（~ 49%）和生物修复（~ 37%），而在煤矿开采研究中，它们是物理干预（~ 59%）和种植本地物种（~ 48%）。尽管最近亚马逊和Orinoquía地区的石油和黄金开采蓬勃发展，但对这些地区的研究却很少。然而，我们发现，在积极干预占主导地位的煤矿开采中，尽管需要更长的评估期，但似乎表现出更加速的生态恢复过程。生态系统组成部分，如土壤、水以及植物以外的生物，应更频繁地列入评估。我们的研究结果为改善哥伦比亚采油后采收率的循证决策提供了支持。

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引用次数: 0

Veronica oetaea, a critically endangered narrow endemic of Mt. Oeta (Central Greece): Population dynamics and conservation threats 欧埃塔山（希腊中部）一种极度濒危的狭窄特有种：种群动态和保护威胁

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-13 DOI: 10.1016/j.jnc.2025.127133

S. Oikonomidis , K. Koutsovoulou , I. Dimitriadis , A. Bantounas , P. Delipetrou , C.A. Thanos , K. Georghiou

Veronica oetaea Gustavsson is an annual, narrow-range endemic plant, a specialist of Mediterranean Temporary Ponds (MTPs), and a priority species under the EU Habitats Directive. Its entire global population is confined to three high-altitude MTPs (Alykaina, Greveno, and Livadies) on Mount Oeta, Greece. MTPs are a priority habitat under the Habitats Directive 92/43/EEC (code: 3170*). A twelve-year monitoring program (2013–2024), one of the few long-term MTP studies, revealed a marked population decline. The subpopulation in Livadies, the largest pond inhabited by the species, experienced a near-total collapse, with no individuals recorded in 2021 and 2023. In Alykaina and Greveno, subpopulations plummeted by 90–95 % between 2015 and 2016 and have since stabilized at critically low levels. To assess long-term viability, we conducted a Population Viability Analysis (PVA) using population matrix models for each subpopulation incorporating both the reproductive stages and transitional dynamics of the species. These models incorporated in-situ and ex-situ data on the species’ life cycle, alongside climatic parameters, primarily flooding events. The analysis identified secondary summer flooding during the flowering and fruiting period as the most critical threat. Climatic data show this phenomenon has intensified over the last 15 years, disrupting the plant’s reproduction. This is a unique case where precipitation, not drought, negatively affect the floristic composition of this habitat type. The threat is compounded by interspecific competition, with Eleocharis palustris encroaching in Livadies and Trifolium sp. in Alykaina. The PVA projects a high risk of extinction for V. oetaea within the next few decades if current biotic and abiotic pressures persist.

维罗妮卡（Veronica oetaea Gustavsson）是一种一年生、狭窄范围的地方性植物，是地中海临时池塘（MTPs）的专家，也是欧盟栖息地指令下的优先物种。它的全球人口都局限在希腊Oeta山上的三个高海拔MTPs （Alykaina， Greveno和Livadies）。MTPs是栖息地指令92/43/EEC（代码：3170*）下的优先栖息地。一项为期12年的监测计划（2013-2024年）是为数不多的长期MTP研究之一，显示出种群数量明显下降。该物种居住的最大池塘Livadies的亚种群几乎完全崩溃，在2021年和2023年没有记录到个体。在Alykaina和Greveno，亚种群数量在2015年至2016年期间下降了90 - 95%，此后稳定在极低水平。为了评估其长期生存能力，我们使用种群矩阵模型对每个亚种群进行了种群生存能力分析（PVA），包括物种的生殖阶段和过渡动态。这些模型结合了物种生命周期的原位和非原位数据，以及气候参数，主要是洪水事件。分析认为，花期和结实期的次生夏季洪水是最严重的威胁。气候数据显示，这种现象在过去15年里愈演愈烈，扰乱了植物的繁殖。这是一个独特的例子，降水，而不是干旱，对这种栖息地类型的植物区系组成产生了负面影响。种间竞争加剧了威胁，Eleocharis palustris在livdies和Trifolium sp.在Alykaina的入侵。PVA预测，如果目前的生物和非生物压力持续下去，在未来几十年里，紫叶菊灭绝的风险很高。

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引用次数: 0

Walk the trail or avoid people? Effects of hiking activity on the spatiotemporal habitat use of carnivores in low mountainous areas, northeastern Japan 沿着小路走还是避开人群？日本东北部低山区徒步活动对食肉动物生境时空利用的影响

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-12 DOI: 10.1016/j.jnc.2025.127131

Takahiro Watanabe, Masayuki U. Saito

Hiking, a well-known recreational activity, can potentially affect wildlife habitat use because of the presence of humans and the establishment of hiking trails. This study specifically focused on carnivores to verify the extent to which hiking activities in low mountainous areas influenced their spatiotemporal habitat use. From July to November 2022, camera traps were deployed along hiking trails (18 sites) and off-trail (six sites) in four distinct low mountainous areas in northeastern Japan. Kernel density estimation and overlap coefficients were used to examine whether the carnivores exhibited activity times at which they avoided hikers. We used an occupancy model to investigate whether carnivores exhibit spatial use that avoids hiking activity (i.e., trails and the relative number of hikers). Carnivores were more active at nighttime, whereas humans were more active during the daytime. The degree of overlap between any species and humans was low. The spatial use analysis showed that the presence of trails positively influenced all carnivores. In contrast, the presence of humans can negatively affect certain species. Japanese martens, raccoon dogs, and Asian black bears preferred areas with limited human presence during the daytime, whereas Japanese weasels and Japanese badgers tended to use areas with minimal human activity, even at nighttime. These findings highlight the compounded influence of hiking on the spatiotemporal habitat use of carnivores.

徒步旅行是一项众所周知的娱乐活动，由于人类的存在和徒步旅行路线的建立，可能会影响野生动物栖息地的使用。本研究以食肉动物为研究对象，验证低山区徒步活动对其时空栖息地利用的影响程度。从2022年7月到11月，在日本东北部四个不同的低山区，沿着徒步路线（18个地点）和小路（6个地点）部署了相机陷阱。核密度估计和重叠系数用于检验食肉动物是否表现出避开徒步旅行者的活动时间。我们使用占用模型来研究食肉动物是否表现出避免徒步活动的空间利用（即步道和徒步者的相对数量）。食肉动物在夜间更活跃，而人类在白天更活跃。任何物种与人类之间的重叠程度都很低。空间利用分析表明，步道的存在对所有食肉动物都有积极影响。相反，人类的存在会对某些物种产生负面影响。日本貂、貉和亚洲黑熊喜欢在白天人类活动较少的地区活动，而日本黄鼠狼和日本獾则倾向于在人类活动最少的地区活动，即使在夜间也是如此。这些发现强调了徒步旅行对食肉动物时空栖息地利用的复合影响。

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引用次数: 0

Exploring patterns of beta phylodiversity in the Argentine angiosperm flora through its vegetation units: Insights for its conservation 通过其植被单元探索阿根廷被子植物区系的β系统多样性模式：对其保护的见解

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-12 DOI: 10.1016/j.jnc.2025.127132

Diego L. Salariato, Fernando O. Zuloaga

Understanding how biodiversity is distributed is an essential task for prioritizing conservation actions. Phylogenetic diversity metrics have become crucial in conservation studies because they allow us to quantify the evolutionary history harbored within assemblages, as well as their evolutionary uniqueness. The Argentine Flora is especially diverse due to the variety of environments that comprise the country. In this work, we aim to analyze angiosperm phylodiversity patterns for Argentine vegetation units in order to generate assessments for conservation. First, we analyzed the evolutionary uniqueness of units by estimating different metrics of beta phylodiversity, and their contribution to the total beta variance. Second, we examined patterns of alpha phylodiversity and their inclusion in the current protected area network. Our results show that vegetation units with the highest evolutionary uniqueness are distributed in two main biogeographic groups: those distributed along the Andean-Patagonian region, and those distributed in northeastern Argentina, associated with the Humid Chaco and the Southern Cone Mesopotamian Savanna. These units differed in their alpha phylodiversity patterns, showing higher levels of phylogenetic clustering those included in the Altoandina and Patagonia phytogeographic provinces, and lower levels those included in the Chaco and Pampa provinces, consistent with the tropical niche conservatism hypothesis. However, the unit included in the Subantartica province presented higher phylogenetic diversity and divergence than units of the Altoandina and Patagonia provinces, coinciding here with the Austral Niche Conservatism hypothesis. Units also showed a pronounced variation in their protection level, so a priority ranking for conservation was generated.

了解生物多样性是如何分布的是优先保护行动的基本任务。系统发育多样性指标在保护研究中变得至关重要，因为它们使我们能够量化组合内的进化历史，以及它们的进化独特性。由于构成这个国家的各种环境，阿根廷的植物群尤其多样。在这项工作中，我们的目的是分析阿根廷植被单位的被子植物系统多样性模式，以产生保护评估。首先，我们通过估算不同的beta系统多样性指标来分析单位的进化独特性，以及它们对总beta方差的贡献。其次，我们研究了α系统多样性的模式及其在当前保护区网络中的包含。结果表明，具有最高进化独特性的植被单元主要分布在两个生物地理类群中：沿安第斯-巴塔哥尼亚地区分布的植被单元和分布在阿根廷东北部的植被单元，与湿润的查科和南锥体的美索不达米亚稀树草原有关。这些单位在α系统多样性模式上存在差异，在Altoandina和Patagonia植物地理省表现出较高的系统发育聚类水平，而在Chaco和Pampa省表现出较低的系统发育聚类水平，与热带生态位保守性假设相一致。然而，Subantartica省的单位比Altoandina省和Patagonia省的单位表现出更高的系统发育多样性和分化，这与南方生态位保守假说相吻合。各单位在保护水平上也表现出明显的差异，因此产生了保护的优先级排名。

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引用次数: 0

Bycatch associated with fishing the bivalve mollusk (Anomalocardia flexuosa) (Linnaeus, 1767) in a tropical estuary 在热带河口捕捞双壳软体动物（林奈，1767）时的副渔获物

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-11 DOI: 10.1016/j.jnc.2025.127121

José da Silva Mourão , Nathalia Racquel de Oliveira Rocha , Joseline Molozzi , Evaldo de Lira Azevêdo , Franciely Ferreira Paiva , Karen Diele

Bycatch is defined as the unintentional capture or displacement of non-target organisms during fishing activities, and constitutes a critical challenge in managing global fisheries. While it is often associated with finfish fisheries, bycatch also impacts shellfish harvesting. This study aimed to assess of the bycatch associated with dipnet fishing for Anomalocardia flexuosa. The study was performed in the coastal communities of Tramataia and Barra de Mamanguape, which are part of the Environmental Protection Area located in Northeastern Brazil, while also examining the abundance, body size, and biomass of the target species in relation to seasonal variability between the dry and rainy periods. A total of 548 bycatch specimens were recorded, with the majority (78 %) captured during the dry season, indicating a higher incidence of bycatch during this period. A. flexuosa species were captured, with 21.3 % during the rainy season (n = 3644) and 78.7 % during the dry season (n = 13501). Biomass differed only between seasonal periods, with higher values in the dry season, accounting for 9.04 kg of the total. In contrast, the rainy season contributed 3.65 kg of the total biomass. The Cerithium atratum snail was the most prevalent bycatch in the rainy season, while Neritina virginea was dominant in the dry season. Furthermore, the size of A. flexuosa specimens captured in the dry season exceeded those in the rainy season by more than three times, with an average of 13.50 per dip-netting event (53 % larger than minimum capture size) compared to just 3.64 per event (46 % smaller than minimum capture size) in the rainy season. This study highlights the significant diversity among benthic groups affected by trawling practices. Thus, effective co-management policies are needed to minimize the impact of trawling.

副渔获物被定义为在捕捞活动中无意捕获或取代非目标生物，是管理全球渔业的一个重大挑战。虽然副渔获通常与鱼类渔业有关，但也会影响贝类的捕捞。本研究的目的是评估与浸网捕捞有关的副渔获量。这项研究是在Tramataia和Barra de Mamanguape的沿海社区进行的，这是巴西东北部环境保护区的一部分，同时还研究了目标物种的丰度、体型和生物量与干旱和雨季之间的季节变化的关系。共记录了548个副渔获物标本，其中大部分（78%）是在旱季捕获的，表明在此期间副渔获物的发生率较高。其中，雨季捕获弯纹沙蚤占21.3%（3644种），旱季捕获78.7%（13501种）。生物量仅在季节间存在差异，旱季较高，占总量的9.04 kg。相比之下，雨季贡献了3.65 kg的总生物量。雨季最常见的副渔获是白铈螺（Cerithium atratum），旱季主要是白泥螺（Neritina virginia）。此外，旱季捕获的弯沙沙标本的大小是雨季捕获的3倍多，平均每次滴网捕获13.50只（比最小捕获尺寸大53%），而雨季平均每次滴网捕获3.64只（比最小捕获尺寸小46%）。这项研究强调了受拖网捕捞影响的底栖生物群体的显著多样性。因此，需要有效的共同管理政策，以尽量减少拖网捕捞的影响。

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引用次数: 0

Bridging assessment gaps: Proactive conservation of endemic subspecies with limited distribution 弥合评估差距：有限分布的地方性亚种的主动保护

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-11 DOI: 10.1016/j.jnc.2025.127129

Tao Liu, Canchao Yang

Global changes are significantly impacting biodiversity, driving numerous species toward endangerment or extinction. These adverse effects are particularly pronounced in species that have recently diverged from subspecies. However, such species often do not receive timely conservation attention because they were previously classified as subspecies and may not have been recognized as threatened at the species level. It reflects an evaluation gap in the IUCN species assessment system, especially for locally endemic subspecies. In this paper, we emphasize the importance of conducting advance assessments of endangered risk levels for endemic subspecies with restricted ranges, using examples from Hainan Island, China. We propose a proactive endangered risk assessment method for the conservation of endemic subspecies globally. This approach aims to provide effective measures to protect endemic subspecies as independent species before they become threatened or endangered.

全球变化对生物多样性产生了重大影响，导致许多物种濒临灭绝。这些不利影响在最近从亚种分化出来的物种中尤为明显。然而，这些物种往往没有得到及时的保护，因为它们以前被列为亚种，可能没有在物种水平上被认为是受威胁的物种。这反映了IUCN物种评估系统的评估差距，特别是对当地特有亚种的评估差距。本文以中国海南岛为例，强调了对范围有限的地方性亚种进行濒危程度预估的重要性。提出了一种全球特有亚种保护的前瞻性濒危风险评估方法。该方法旨在为地方性亚种在受到威胁或濒临灭绝之前作为独立物种进行保护提供有效措施。

引用次数: 0

Altered movement patterns in wolverines with missing paws 失去爪子的狼獾运动模式的改变

IF 2.5 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Journal for Nature Conservation

Pub Date : 2025-10-11 DOI: 10.1016/j.jnc.2025.127127

Jacob L. Seguin, Matthew A. Scrafford

Injury may affect an animal’s ability to move and carry out life history activities, ultimately affecting their fitness. During a larger telemetry study in northwestern Ontario, Canada, we live-captured 2 injured male wolverines who were missing their front right paw. We used GPS collars to compare their daily movements with temporally aligned movements from 27 uninjured male wolverines. Injured males traveled less distance, used smaller areas, moved along more sinuous paths, lived closer to towns, and were in the lowest quantile of body mass. We predicted injured males would move less in snow due to increased sinking depth, but found they moved less in snow-free months. One of the injured males made a > 188 km exploratory movement in 9 days and both individuals lived for at least 2 years after we detected their injury. Ultimately, both were killed by vehicles on provincial highways. We present the first detailed examples of the movement characteristics of injured wolverines. Our results suggest that injured wolverines can fulfill some life history activities such as dispersal and short-term survival which are factors in population demography, but that permanent injury has significant effects on wolverine movement and may be a hidden population level effect. Our data provide information on the sub-lethal effects of injury on movement and contribute to the understanding of the effects of human activities on wolverines.

受伤可能会影响动物的移动和进行生活史活动的能力，最终影响它们的健康。在加拿大安大略省西北部进行的一项更大规模的遥测研究中，我们现场捕获了两只受伤的雄性狼獾，它们失去了右前爪。我们使用GPS项圈将它们的日常活动与27只未受伤的雄性狼獾的时间对齐运动进行比较。受伤的男性行走的距离更短，使用的区域更小，沿着更蜿蜒的路径移动，住得离城镇更近，而且体重最低。我们预测受伤的雄性会在雪中移动较少，因为下沉深度增加，但发现它们在无雪月份移动较少。其中一只受伤的雄性在9天内进行了188公里的探索活动，在我们发现它们受伤后，两只个体都至少活了2年。最终，两人都在省道公路上被车辆撞死。我们提出了受伤的狼獾的运动特征的第一个详细的例子。研究结果表明，受伤的狼獾可以完成一些生活史活动，如分散和短期生存，这是种群人口统计学的因素，但永久性伤害对狼獾的运动有显著影响，可能是一种隐藏的种群水平效应。我们的数据提供了关于伤害对运动的亚致死效应的信息，并有助于理解人类活动对狼獾的影响。

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