Opposing demographic histories reveal rapid evolution in grebes (Aves: Podicipedidae)

Autor:	Jon Fjeldså, Marcel van Tuinen, Lisa M. Ogawa, Donald A. Vance, Paulo C. Pulgarin
Rok vydání:	2015
Předmět:	education.field_of_study Podiceps andinus Ecology Lineage (evolution) Population Zoology Podiceps Biology Subspecies biology.organism_classification Critically endangered Threatened species Animal Science and Zoology education Ecology Evolution Behavior and Systematics Grebe
Zdroj:	The Auk. 132:771-786
ISSN:	1938-4254 0004-8038
DOI:	10.1642/auk-14-259.1
Popis:	Grebes (Aves: Podicipedidae) are a threatened family containing species that vary widely in demography. Podicipedidae includes several species that are either rare and confined to a single lake basin, or abundantly distributed across several continents. The most speciose genus, Podiceps, particularly the eared grebe lineage, best reflects this curious demographic pattern by representing the most abundant of extant grebes, several critically endangered species, and a recently extinct species. Here, we obtained genetic data from 3 mitochondrial markers to make phylogenetic and population genetic inferences about the eared grebe clade. Using DNA from tissue, feather, skin, and toe pads, our sampling encompassed all species and subspecies, including the extinct Colombian Grebe (Podiceps andinus) and migratory and resident populations of the North American Black-necked Grebe (P. nigricollis californicus). Bayesian inference yielded novel insights into the dynamics of this group, particularly the recen...
Databáze:	OpenAIRE
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