Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism

Abstract Amazonian rivers are usually suggested as dispersal barriers, limiting biogeographic units. This is evident in a widely accepted Areas of Endemism (AoEs) hypothesis proposed for Amazonian birds. We empirically test this hypothesis based on quantitative analyses of species distribution. We c...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ubirajara Oliveira, Marcelo F. Vasconcelos, Adalberto J. Santos
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1054fd8ae42c40c99c1a3df57246408a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:1054fd8ae42c40c99c1a3df57246408a
record_format	dspace
spelling	oai:doaj.org-article:1054fd8ae42c40c99c1a3df57246408a2021-12-02T15:05:51ZBiogeography of Amazon birds: rivers limit species composition, but not areas of endemism10.1038/s41598-017-03098-w2045-2322https://doaj.org/article/1054fd8ae42c40c99c1a3df57246408a2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03098-whttps://doaj.org/toc/2045-2322Abstract Amazonian rivers are usually suggested as dispersal barriers, limiting biogeographic units. This is evident in a widely accepted Areas of Endemism (AoEs) hypothesis proposed for Amazonian birds. We empirically test this hypothesis based on quantitative analyses of species distribution. We compiled a database of bird species and subspecies distribution records, and used this dataset to identify AoEs through three different methods. Our results show that the currently accepted Amazonian AoEs are not consistent with areas identified, which were generally congruent among datasets and methods. Some Amazonian rivers represent limits of AoEs, but these areas are not congruent with those previously proposed. However, spatial variation in species composition is correlated with largest Amazonian rivers. Overall, the previously proposed Amazonian AoEs are not consistent with the evidence from bird distribution. However, the fact that major rivers coincide with breaks in species composition suggest they can act as dispersal barriers, though not necessarily for all bird taxa. This scenario indicates a more complex picture of the Amazonian bird distribution than previously imagined.Ubirajara OliveiraMarcelo F. VasconcelosAdalberto J. SantosNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ubirajara Oliveira Marcelo F. Vasconcelos Adalberto J. Santos Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
description	Abstract Amazonian rivers are usually suggested as dispersal barriers, limiting biogeographic units. This is evident in a widely accepted Areas of Endemism (AoEs) hypothesis proposed for Amazonian birds. We empirically test this hypothesis based on quantitative analyses of species distribution. We compiled a database of bird species and subspecies distribution records, and used this dataset to identify AoEs through three different methods. Our results show that the currently accepted Amazonian AoEs are not consistent with areas identified, which were generally congruent among datasets and methods. Some Amazonian rivers represent limits of AoEs, but these areas are not congruent with those previously proposed. However, spatial variation in species composition is correlated with largest Amazonian rivers. Overall, the previously proposed Amazonian AoEs are not consistent with the evidence from bird distribution. However, the fact that major rivers coincide with breaks in species composition suggest they can act as dispersal barriers, though not necessarily for all bird taxa. This scenario indicates a more complex picture of the Amazonian bird distribution than previously imagined.
format	article
author	Ubirajara Oliveira Marcelo F. Vasconcelos Adalberto J. Santos
author_facet	Ubirajara Oliveira Marcelo F. Vasconcelos Adalberto J. Santos
author_sort	Ubirajara Oliveira
title	Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
title_short	Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
title_full	Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
title_fullStr	Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
title_full_unstemmed	Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
title_sort	biogeography of amazon birds: rivers limit species composition, but not areas of endemism
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/1054fd8ae42c40c99c1a3df57246408a
work_keys_str_mv	AT ubirajaraoliveira biogeographyofamazonbirdsriverslimitspeciescompositionbutnotareasofendemism AT marcelofvasconcelos biogeographyofamazonbirdsriverslimitspeciescompositionbutnotareasofendemism AT adalbertojsantos biogeographyofamazonbirdsriverslimitspeciescompositionbutnotareasofendemism
_version_	1718388626392350720

Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism

Ejemplares similares