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Citizen Science Reveals an Extensive Shift in the Winter Distribution of Migratory Western Grebes
Marine waterbirds have shown variable trends in abundance over the past four decades with some species displaying steep declines along the Pacific coast from British Columbia through California. One of the most dramatic changes has been that of western grebes (Aechmophorus occidentalis) in the Salis...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Public Library of Science
2013
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3686804/ https://www.ncbi.nlm.nih.gov/pubmed/23840328 http://dx.doi.org/10.1371/journal.pone.0065408 |