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Seabird population trends along the west coast of North America: causes and the extent of regional concordance

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Seabird population trends along the west coast of North America: causes and the extent of regional concordance; 1994; Article; Journal; Studies in Avian Biology; Ainley, D. G.; Sydeman, W. J.; Hatch, S. A.; Wilson, U. W.

Summary

We compared trends in breeding population size among cormorants, gulls, alcids, and others, among the Farallon Islands, and sites in northern California and Washington, Gulf of Alaska, and Bering Sea, but in most cases only during the last two decades. For a given species, trends were usually concordant within the same oceanographic domain, except for Rhinoceros Auklet, which increased across all domains in its northeastern Pacific range. Overall, humans and their domestic animals have had severe negative impacts to individual islands, but recent restoration efforts have had spectacular results. On the other hand, the California Current and the eastern Bering Sea now seem unable to support historic populations of natural, top-trophic [...]

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Type Scheme Key
local-index unknown 1012821
local-pk unknown 1012821
series unknown Studies in Avian Biology

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journalStudies in Avian Biology
parts
typevolume
value15
languageEnglish
citationTypeArticle

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