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Titre :
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The African Penguin Spheniscus demersus should be considered Critically Endangered (2024)
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Auteurs :
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Richard B Sherley, Auteur ;
Azwianewi B Makhado, Auteur ;
Robert JM Crawford, Auteur ;
Christina Hagen, Auteur ;
Jessica Kemper, Auteur ;
Katrin Ludynia, Auteur ;
Makhudu J Masotla, Auteur ;
Alistair McInnes, Auteur ;
Lorien Pichegru, Auteur ;
Desmond Tom, Auteur ;
Leshia Upfold, Auteur ;
Lauren J Waller, Auteur
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Type de document :
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Article
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Dans :
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Ostrich (95(3) October, 2024)
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Article en page(s) :
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181-187
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Mots-clés:
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IUCN Red List
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JARA
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Just Another Red-list Assessment
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conservation status
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extinction risk
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population size reduction
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southern Africa
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Résumé :
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The African Penguin Spheniscus demersus has been considered a threatened species since 1984 and, aside from a short period around 2000, its population has been in constant decline since at least the 1950s. By combining counts of the numbers of breeding pairs made at 26 colonies in South Africa and Namibia between 1979 and 2023 with Bayesian state–space models we reassess the species’ conservation status. The breeding population has declined by 77.8% (95% credible intervals: 71.8–84.6%) over the last 30 years (3 generations), from ∼44 300 breeding pairs in 1993 to ∼9 900 pairs in 2023. This falls just below the threshold for a global IUCN Red List status of Critically Endangered (CR) under criterion A2. However, the decline in Namibia exceeds that threshold at the national level (30-year decline = 82.4%, 78.2–86.2%) following the loss of ∼3 600 breeding pairs there in the last 5 years. In South Africa, the Western Cape population is now declining at
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En ligne :
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https://doi.org/10.2989/00306525.2024.2355618
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