Evolutionary history of the critically endangered Cozumel dwarf carnivores inferred from mitochondrial DNA analyses
| العنوان: | Evolutionary history of the critically endangered Cozumel dwarf carnivores inferred from mitochondrial DNA analyses |
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| المؤلفون: | Katherine W. McFadden, Matthew E. Gompper, D. G. Valenzuela, J. C. Morales |
| المصدر: | Journal of Zoology. 276:176-186 |
| بيانات النشر: | Wiley, 2008. |
| سنة النشر: | 2008 |
| مصطلحات موضوعية: | Conservation genetics, education.field_of_study, biology, Phylogenetic tree, Population, Population genetics, Zoology, Nasua, biology.organism_classification, Coati, Coalescent theory, Critically endangered, Animal Science and Zoology, education, Ecology, Evolution, Behavior and Systematics |
| الوصف: | The pygmy raccoon Procyon pygmaeus and dwarf coati Nasua nelsoni, both endemic to Cozumel Island, Mexico, are two of the most endangered carnivores in the world, and their persistence requires active management. However, the taxonomic status of these populations remains unclear. Therefore we investigated mitochondrial DNA variation using the control region to examine the genetic uniqueness and evolutionary history of these taxa. Using strict phylogenetic criteria, species-level uniqueness of the Cozumel taxa was difficult to discern based solely on haplotype groupings and identification of unique alleles. However, population genetic approaches indicate significant population differentiation between Cozumel and mainland populations and we suggest that these taxa should be treated as distinct management units from their mainland conspecifics. Coalescent analysis indicated that the pygmy raccoon diverged from the mainland about 3050–200 111 years before present (ybp) and the Cozumel coati 1263–82 896 ybp; dates that can be further constrained by incorporating knownage subfossil specimens from Cozumel as well as the geological history of the island. Thus, although it is likely that the island taxa colonized Cozumel before the Mayan peoples populated the island, we are unable to definitively reject the hypothesis that colonization by these taxa was not human facilitated. |
| تدمد: | 1469-7998 0952-8369 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::16f909bdf3a6136e744c311ff6ad2d19 https://doi.org/10.1111/j.1469-7998.2008.00461.x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........16f909bdf3a6136e744c311ff6ad2d19 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14697998 09528369 |
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