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气候变化和土地利用变化背景下豹亚种的保护

Leopard subspecies conservation under climate and land-use change.

作者信息

Mitchell Charlotte, Bolam Jamie, Bertola Laura D, Naude Vincent N, Gonçalves da Silva Lucas, Razgour Orly

机构信息

Biosciences University of Exeter Exeter UK.

Department of Biology University of Copenhagen Copenhagen Denmark.

出版信息

Ecol Evol. 2024 May 21;14(5):e11391. doi: 10.1002/ece3.11391. eCollection 2024 May.

Abstract

Predicting the effects of global environmental changes on species distribution is a top conservation priority, particularly for large carnivores, that contribute to regulating and maintaining ecosystems. As the most widespread and adaptable large felid, ranging across Africa and Asia, leopards are crucial to many ecosystems as both keystone and umbrella species, yet they are threatened across their ranges. We used intraspecific species distribution models (SDMs) to predict changes in range suitability for leopards under future climate and land-use change and identify conservation gaps and opportunities. We generated intraspecific SDMs for the three western leopard subspecies, the African, ; Arabian, ; and Persian, , leopards, and overlapped predictions with protected areas (PAs) coverage. We show that leopard subspecies differ in their environmental associations and vulnerability to future changes. The African and Arabian leopards are predicted to lose ~25% and ~14% of their currently suitable range, respectively, while the Persian leopard is predicted to experience ~12% range gains. We found that most areas predicted to be suitable were not protected, with only 4%-16% of the subspecies' ranges falling inside PAs, and that these proportions will decrease in the future. The highly variable responses we found between leopard subspecies highlight the importance of considering intraspecific variation when modelling vulnerability to climate and land-use changes. The predicted decrease in proportion of suitable ranges falling inside PAs threatens global capacity to effectively conserve leopards because survival rates are substantially lower outside PAs due to persecution. Hence, it is important to work with local communities to address negative human-wildlife interactions and to restore habitats to retain landscape connectivity where PA coverage is low. On the other hand, the predicted increase in range suitability across southern Europe presents opportunities for expansion outside of their contemporary range, capitalising on European rewilding schemes.

摘要

预测全球环境变化对物种分布的影响是保护工作的首要重点,对于有助于调节和维持生态系统的大型食肉动物而言尤为如此。作为分布最广且适应性最强的大型猫科动物,豹遍布非洲和亚洲,作为关键物种和伞护物种,对许多生态系统至关重要,但它们在整个分布范围内都受到威胁。我们使用种内物种分布模型(SDMs)来预测未来气候和土地利用变化下豹的适宜栖息地范围变化,并确定保护缺口和机遇。我们为三种西部豹亚种,即非洲豹、阿拉伯豹和波斯豹生成了种内SDMs,并将预测结果与保护区(PAs)覆盖范围进行叠加。我们发现豹亚种在环境关联和对未来变化的脆弱性方面存在差异。预计非洲豹和阿拉伯豹目前适宜的栖息地范围将分别丧失约25%和约14%,而波斯豹的适宜栖息地范围预计将增加约12%。我们发现,预计适宜的大多数区域未得到保护,只有4%-16%的亚种栖息地范围位于保护区内,而且这些比例未来还会下降。我们在豹亚种之间发现的高度可变反应凸显了在模拟对气候和土地利用变化的脆弱性时考虑种内变异的重要性。预计保护区内适宜栖息地范围比例的下降威胁到全球有效保护豹的能力,因为由于受到迫害,保护区外的存活率要低得多。因此,与当地社区合作解决负面的人兽互动问题,并在保护区覆盖范围较低的地区恢复栖息地以保持景观连通性非常重要。另一方面,预计整个南欧适宜栖息地范围的增加为豹在其当前分布范围之外进行扩张提供了机遇,可以利用欧洲的野化计划。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8c18/11109047/e05b6f4f0ffa/ECE3-14-e11391-g004.jpg

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