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2023-04
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expert opinion
Hydrobates leucorhous
Leach's Storm Petrel
seabird conservation
threats
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Life sciences
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Abstract
Seabirds are declining globally, though the threats they face differ among and within species and populations. Following substantial population declines at several breeding colonies, Leach’s Storm-Petrel (Hydrobates leucorhous) was uplisted from Least Concern to Vulnerable by the International Union for Conservation of Nature (IUCN) in 2016. Reasons for these declines are unclear, and it is important to identify threats the species faces across its global breeding range to guide research directions and inform conservation efforts. We solicited feedback from 37 Leach’s Storm-Petrel scientific experts from eight countries on the importance of different threats facing the species on land and at sea. Perceived threats to extant colonies varied spatially, with a consensus within regions for main threats. Most researchers agreed that the main threats at or near colonies are avian and mammalian predators and onshore light attraction. At-sea threats have been less studied and were harder to identify and rank, but include offshore lights and structures, spatial shifts in prey, and contaminants. Climate change was not listed specifically because of its multifaceted repercussions, but several perceived threats are linked to climate change. Globally, introduction of mammalian predators is an overarching driver of seabird colony decline or extirpation; thus biosecurity must be considered an important measure for the conservation of storm-petrels. In addition, filling knowledge gaps and implementing a series of regionally relevant and targeted strategies that lead to small but cumulative conservation successes may be the best approach for this species.
Citation
Pollet, I. L., A. K. Lenske, A. N. M. A Ausems, C. Barbraud, Y. Bedolla-Guzmán, A. W. J. Bicknell, M. Bolton, A. L. Bond, K. Delord, A. W. Diamond, D. A. Fifield, C. Gjerdrum, L. R. Halpin, E. S. Hansen, A. Hedd, R. Hoeg, H. L. Major, R. A. Mauck, G. McClelland, L. McFarlane Tranquilla, W. A. Montevecchi, M. Parker, I. Pratte, J.-F. Rail, G. J. Robertson, J. C. Rock, R. A. Ronconi, D. Shutler, I. J. Stenhouse, A. Takahashi, Y. Watanuki, L. J. Welch, S. I. Wilhelm, S. N.P. Wong and M. L. Mallory. 2023. Experts’ opinions on threats to Leach’s Storm-Petrels (Hydrobates leucorhous) across their global range. Avian Conservation and Ecology 18(1):11. https://doi.org/10.5751/ACE-02370-180111
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Resilience Alliance, Inc.
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Avian Conservation and Ecology
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http://hdl.handle.net/10141/623197
DOI
10.5751/ace-02370-180111
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Journal Article
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Copyright © by the author(s). Published here under license by The Resilience Alliance. This article is under a Creative Commons Attribution 4.0 International License. You may share and adapt the work provided the original author and source are credited, you indicate whether any changes were made, and you include a link to the license. ACE-ECO-2022-2370.pdf. The attached file is the published version of the article.
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1712-6568
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