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Quantifying the Extent of North American Mammal Extinction Relative to the Pre-Anthropogenic Baseline
Earth has experienced five major extinction events in the past 450 million years. Many scientists suggest we are now witnessing a sixth, driven by human impacts. However, it has been difficult to quantify the real extent of the current extinction episode, either for a given taxonomic group at the co...
| Autores principales: | , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Public Library of Science
2009
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2789409/ https://www.ncbi.nlm.nih.gov/pubmed/20016820 http://dx.doi.org/10.1371/journal.pone.0008331 |