Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.

The Neotropics contains half of remaining rainforests and Earth's largest reservoir of amphibian biodiversity. However, determinants of Neotropical biodiversity (i.e., vicariance, dispersals, extinctions, and radiations) earlier than the Quaternary are largely unstudied. Using a novel method of...

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Autores principales:	Juan C Santos, Luis A Coloma, Kyle Summers, Janalee P Caldwell, Richard Ree, David C Cannatella
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/9ad2fd2d3936436ca96cc7c5affe8a67
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spelling	oai:doaj.org-article:9ad2fd2d3936436ca96cc7c5affe8a672021-11-25T05:33:45ZAmazonian amphibian diversity is primarily derived from late Miocene Andean lineages.1544-91731545-788510.1371/journal.pbio.1000056https://doaj.org/article/9ad2fd2d3936436ca96cc7c5affe8a672009-03-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19278298/pdf/?tool=EBIhttps://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885The Neotropics contains half of remaining rainforests and Earth's largest reservoir of amphibian biodiversity. However, determinants of Neotropical biodiversity (i.e., vicariance, dispersals, extinctions, and radiations) earlier than the Quaternary are largely unstudied. Using a novel method of ancestral area reconstruction and relaxed Bayesian clock analyses, we reconstructed the biogeography of the poison frog clade (Dendrobatidae). We rejected an Amazonian center-of-origin in favor of a complex connectivity model expanding over the Neotropics. We inferred 14 dispersals into and 18 out of Amazonia to adjacent regions; the Andes were the major source of dispersals into Amazonia. We found three episodes of lineage dispersal with two interleaved periods of vicariant events between South and Central America. During the late Miocene, Amazonian, and Central American-Chocoan lineages significantly increased their diversity compared to the Andean and Guianan-Venezuelan-Brazilian Shield counterparts. Significant percentage of dendrobatid diversity in Amazonia and Chocó resulted from repeated immigrations, with radiations at <10.0 million years ago (MYA), rather than in situ diversification. In contrast, the Andes, Venezuelan Highlands, and Guiana Shield have undergone extended in situ diversification at near constant rate since the Oligocene. The effects of Miocene paleogeographic events on Neotropical diversification dynamics provided the framework under which Quaternary patterns of endemism evolved.Juan C SantosLuis A ColomaKyle SummersJanalee P CaldwellRichard ReeDavid C CannatellaPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 7, Iss 3, p e56 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Juan C Santos Luis A Coloma Kyle Summers Janalee P Caldwell Richard Ree David C Cannatella Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.
description	The Neotropics contains half of remaining rainforests and Earth's largest reservoir of amphibian biodiversity. However, determinants of Neotropical biodiversity (i.e., vicariance, dispersals, extinctions, and radiations) earlier than the Quaternary are largely unstudied. Using a novel method of ancestral area reconstruction and relaxed Bayesian clock analyses, we reconstructed the biogeography of the poison frog clade (Dendrobatidae). We rejected an Amazonian center-of-origin in favor of a complex connectivity model expanding over the Neotropics. We inferred 14 dispersals into and 18 out of Amazonia to adjacent regions; the Andes were the major source of dispersals into Amazonia. We found three episodes of lineage dispersal with two interleaved periods of vicariant events between South and Central America. During the late Miocene, Amazonian, and Central American-Chocoan lineages significantly increased their diversity compared to the Andean and Guianan-Venezuelan-Brazilian Shield counterparts. Significant percentage of dendrobatid diversity in Amazonia and Chocó resulted from repeated immigrations, with radiations at <10.0 million years ago (MYA), rather than in situ diversification. In contrast, the Andes, Venezuelan Highlands, and Guiana Shield have undergone extended in situ diversification at near constant rate since the Oligocene. The effects of Miocene paleogeographic events on Neotropical diversification dynamics provided the framework under which Quaternary patterns of endemism evolved.
format	article
author	Juan C Santos Luis A Coloma Kyle Summers Janalee P Caldwell Richard Ree David C Cannatella
author_facet	Juan C Santos Luis A Coloma Kyle Summers Janalee P Caldwell Richard Ree David C Cannatella
author_sort	Juan C Santos
title	Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.
title_short	Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.
title_full	Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.
title_fullStr	Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.
title_full_unstemmed	Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.
title_sort	amazonian amphibian diversity is primarily derived from late miocene andean lineages.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/9ad2fd2d3936436ca96cc7c5affe8a67
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Amazonian amphibian diversity is primarily derived from late Miocene Andean lineages.

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