Mismatch between bird species sensitivity and the protection of intact habitats across the Americas,Ecology Letters

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Mismatch between bird species sensitivity and the protection of intact habitats across the Americas
Ecology Letters ( IF 7.6 ) Pub Date : 2021-08-16 , DOI: 10.1111/ele.13859
Victor Cazalis _{1,

2,

3} , Megan D Barnes ₄ , Alison Johnston ₅ , James E M Watson ₆ , Cagan H Şekercioğlu _{7,

8} , Ana S L Rodrigues ₁

Affiliation

Protected areas are highly heterogeneous in their effectiveness at buffering human pressure, which may hamper their ability to conserve species highly sensitive to human activities. Here, we use 60 million bird observations from eBird to estimate the sensitivity to human pressure of each bird species breeding in the Americas. Concerningly, we find that ecoregions hosting large proportions of high-sensitivity species, concentrated in tropical biomes, do not have more intact protected habitat. Moreover, 266 high-sensitivity species have little or no intact protected habitat within their distributions. Finally, we show that protected area intactness is decreasing faster where high-sensitivity species concentrate. Our results highlight a major mismatch between species conservation needs and the coverage of intact protected habitats, which likely hampers the long-term effectiveness of protected areas at retaining species. We highlight ecoregions where protection and management of intact habitats, complemented by restoration, is urgently needed.

中文翻译：

鸟类物种敏感性与美洲完整栖息地保护之间的不匹配

保护区在缓冲人类压力方面的效率差异很大，这可能会妨碍它们保护对人类活动高度敏感的物种的能力。在这里，我们使用来自 eBird 的 6000 万只鸟类观察来估计在美洲繁殖的每种鸟类对人类压力的敏感性。令人担忧的是，我们发现拥有大量高敏感性物种的生态区，集中在热带生物群落中，没有更完整的受保护栖息地。此外，266 种高敏感性物种在其分布范围内几乎没有或没有完整的受保护栖息地。最后，我们表明，在高敏感性物种集中的地方，保护区的完整性下降得更快。我们的结果突出了物种保护需求与完整受保护栖息地的覆盖率之间的重大不匹配，这可能会妨碍保护区在保留物种方面的长期有效性。我们强调生态区，在这些生态区中，迫切需要保护和管理完整栖息地并辅之以恢复。

更新日期：2021-10-08

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