Evaluating threats to South Shetland Antarctic fur seals amidst population collapse

IF 4.3 2区 生物学 Q1 ECOLOGY Mammal Review Pub Date : 2023-10-04 DOI:10.1111/mam.12327
Douglas J. Krause, Robert L. Brownell Jr, Carolina A. Bonin, Samuel M. Woodman, Douglas Shaftel, George M. Watters
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评估南设得兰岛南极海狗在种群崩溃中面临的威胁
摘要南极海狗(Arctocephalus gazella)是一种标志性的海洋哺乳动物,是南极生态系统的重要组成部分,也是区域渔业管理的重要指标物种。最近的研究表明,gazella熊头羚至少由四个不同的亚种群组成,包括南设得兰群岛上的一个繁殖群。这些南设得兰南极海狗(SSAFS)是世界上纬度最高的海狗种群。因此,这一亚种群面临着一系列独特的环境和生态挑战,拥有不成比例的巨大物种遗传多样性库,并在过去15年(2008-2023年)经历了灾难性的种群下降。我们回顾了成功恢复SSAFS的一系列当前和潜在威胁。如果决策者希望提高恢复力并支持该物种的强大种群和未来的恢复潜力,则需要采取行动解决从不确定到严重的威胁,包括碎片纠缠,气候变化,意外死亡以及与磷虾渔业的资源竞争。特别是,应仔细处理与一年中的幼鱼和磷虾渔业的空间和时间分布重叠有关的风险。目前迫切需要对所有南极毛海豹亚种群进行最新的种群估计,分析SSAFS的种群生存能力,并进一步描述夏季和冬季的觅食行为,以便更好地为潜在的保护行动提供信息。
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来源期刊
Mammal Review
Mammal Review 生物-动物学
CiteScore
12.20
自引率
4.10%
发文量
29
审稿时长
>12 weeks
期刊介绍: Mammal Review is the official scientific periodical of the Mammal Society, and covers all aspects of mammalian biology and ecology, including behavioural ecology, biogeography, conservation, ecology, ethology, evolution, genetics, human ecology, management, morphology, and taxonomy. We publish Reviews drawing together information from various sources in the public domain for a new synthesis or analysis of mammalian biology; Predictive Reviews using quantitative models to provide insights into mammalian biology; Perspectives presenting original views on any aspect of mammalian biology; Comments in response to papers published in Mammal Review; and Short Communications describing new findings or methods in mammalian biology.
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