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Climate change threatens giant panda protection in the 21st century

机译:Climate change threatens giant panda protection in the 21st century

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摘要

It is increasingly recognized that biotic interactions could play a significant role in species distribution modelling. To assess the conservation effectiveness of the giant panda (Ailuropoda melanoleuca) reserves in a changing climate, we combined both biotic variables (food availability) and abiotic (climatic and geographic) to project the potential changes of distribution and quality of giant panda habitats using the most recent IPCC-CMIP5 climate scenarios. Our results suggested that climate change would adversely affect giant pandas through habitat degradation, in that: (1) 52.9-71.3% of the current habitats could be lost; (2) the giant panda habitats could become more fragmented and isolated; and (3) both the quantity and quality of habitats in the current giant panda reserves could substantially contract, and approximately 20% of the reserves could lose all habitat representations in this century. Additionally, we found that climate change would make it increasingly necessary to translocate small populations of pandas from the southwestern to the northwestern part of the current distribution range to ensure population viability. Our results suggest the need for immediate change in current conservation policies and formulating adaptation plans for giant panda conservation in a changing climate. (C) 2014 Elsevier Ltd. All rights reserved.
机译:人们日益认识到,生物相互作用可能在物种分布建模中发挥重要作用。为了评估在变化的气候下大熊猫(Ailuropoda melanoleuca)保护区的保护效果,我们结合了生物变量(食物可得性)和非生物变量(气候和地理),以预测大熊猫生境的分布和质量的潜在变化。最新的IPCC-CMIP5气候方案。我们的研究结果表明,气候变化将通过栖息地退化而对大熊猫产生不利影响,原因是:(1)可能损失52.9-71.3%的现有栖息地; (2)大熊猫栖息地可能变得更加零散和孤立; (3)目前大熊猫保护区的栖息地数量和质量都可能大幅萎缩,本世纪大约20%的保护区可能会丧失所有栖息地的代表性。此外,我们发现,气候变化将使越来越少的大熊猫种群从当前分布范围的西南向西北转移,以确保种群的生存能力。我们的结果表明,有必要立即改变当前的保护政策,并制定适应气候变化的大熊猫保护计划。 (C)2014 Elsevier Ltd.保留所有权利。

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