Global population and conservation status of the Great Black-backed Gull Larus marinus

IF 1.5 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION
Samuel Langlois Lopez, A. Bond, N. O’Hanlon, Jared M. Wilson, A. Vitz, C. Mostello, Fredericka B. Hamilton, Jean-François Rail, L. Welch, R. Boettcher, S. Wilhelm, T. Anker‐Nilssen, F. Daunt, E. Masden
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引用次数: 2

Abstract

Summary The Great Black-backed Gull Larus marinus is a generalist species that inhabits temperate and arctic coasts of the north Atlantic Ocean. In recent years, there has been growing concern about population declines at local and regional scales; however, there has been no attempt to robustly assess Great Black-backed Gull population trends across its global range. We obtained the most recent population counts across the species’ range and analysed population trends at a global, continental, and national scale over the most recent three-generation period (1985–2021) following IUCN Red List criteria. We found that, globally, the species has declined by 43%–48% over this period (1.2–1.3% per annum, respectively), from an estimated 291,000 breeding pairs to 152,000–165,000 breeding pairs under two different scenarios. North American populations declined more steeply than European ones (68% and 28%, respectively). We recommend that Great Black-backed Gull should be uplisted from ‘Least Concern’ to ‘Vulnerable’ on the IUCN Red List of Threatened Species under criterion A2 (an estimated reduction in population size >30% over three generations).
大黑背海鸥的全球种群及保护现状
海洋大黑背鸥是一种多面手物种,栖息在北大西洋的温带和北极海岸。近年来,人们越来越担心地方和区域范围内的人口下降;然而,目前还没有人试图对其全球范围内黑背海鸥的种群趋势进行有力的评估。我们获得了该物种范围内的最新种群数量,并根据国际自然保护联盟红色名录标准分析了最近三代(1985-2021)全球、大陆和国家范围内的种群趋势。我们发现,在全球范围内,该物种在这段时间内减少了43%-48%(分别为每年1.2-1.3%),在两种不同的情况下,从估计的29.1万对繁殖对减少到15.2万对-16.5万对繁殖。北美人口的下降幅度比欧洲更大(分别为68%和28%)。我们建议,根据A2标准,将大黑背鸥从“最不受关注”提升为“易危”,列入国际自然保护联盟濒危物种红色名录(估计三代后种群规模减少30%以上)。
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来源期刊
CiteScore
3.40
自引率
6.20%
发文量
50
审稿时长
>12 weeks
期刊介绍: Bird Conservation International is a quarterly peer-reviewed journal that seeks to promote worldwide research and action for the conservation of birds and the habitats upon which they depend. The official journal of BirdLife International, it provides stimulating, international and up-to-date coverage of a broad range of conservation topics, using birds to illuminate wider issues of biodiversity, conservation and sustainable resource use. It publishes original papers and reviews, including targeted articles and recommendations by leading experts.
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