Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish

The Amazon is probably the most diverse realm on Earth, and is considered to be the primary source of diversity and a center of dispersal for Neotropical terrestrial organisms. Yet, the assumption that the Amazon basin is a primordial place of fish species origination and dispersal into other draina...

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Autores principales: de Queiroz,Luiz Jardim, Meyer, Xavier, Cardoso, Yamila Paula, Bahechar, Ilham A., Covain, Raphaël, Parente, Thiago E.M., Torrente-Vilara, Gislene, Buckup, Paulo A., Montoya-Burgos, Juan I.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2021
Materias:
Biología
Amazon River
Lake Pebas
Biogeography
Ancestral ecology
Niche conservatism
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124982
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124982
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Amazon River
Lake Pebas
Biogeography
Ancestral ecology
Niche conservatism
spellingShingle Biología
Amazon River
Lake Pebas
Biogeography
Ancestral ecology
Niche conservatism
de Queiroz,Luiz Jardim
Meyer, Xavier
Cardoso, Yamila Paula
Bahechar, Ilham A.
Covain, Raphaël
Parente, Thiago E.M.
Torrente-Vilara, Gislene
Buckup, Paulo A.
Montoya-Burgos, Juan I.
Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish
topic_facet Biología
Amazon River
Lake Pebas
Biogeography
Ancestral ecology
Niche conservatism
description The Amazon is probably the most diverse realm on Earth, and is considered to be the primary source of diversity and a center of dispersal for Neotropical terrestrial organisms. Yet, the assumption that the Amazon basin is a primordial place of fish species origination and dispersal into other drainages still need to be tested. We addressed this issue by inferring a time-stratified biogeographic history and reconstructing the ancestral habitat preference of Hypostomus, a continentally widespread and species-rich Neotropical genus. We found that Hypostomus emerged in the Western Amazon ([~]14.7 Ma), when the Western Amazon River was flowing northwards and disconnected from the Eastern Amazon. We show that dispersal events in the first half of Hypostomus evolution occurred from the Western Amazon into adjacent basins, initiating its Neotropical radiation. The ancestral preferred habitat consisted in small rivers with running waters, a predominant habitat in river headwaters. Because of strong niche conservatism in the early evolution of Hypostomus, we suggest that most of the out-of-Western-Amazon dispersal occurred via headwater captures. The radiation of Hypostomus was further promoted by major reconfigurations of river basins, which opened dispersal opportunities into new drainages. Diversification in habitat preference coincided with colonization of basins already occupied by congenerics, indicative of niche shifts triggered by inter-specific competition and species coexistence. By analyzing the evolutionary history of Hypostomus, we show that Western Amazon was the main center of fish dispersal in the Neotropical Region from Middle Miocene to the present, supporting the cradle hypothesis of fish origination and dispersal.
format Articulo
Preprint
author de Queiroz,Luiz Jardim
Meyer, Xavier
Cardoso, Yamila Paula
Bahechar, Ilham A.
Covain, Raphaël
Parente, Thiago E.M.
Torrente-Vilara, Gislene
Buckup, Paulo A.
Montoya-Burgos, Juan I.
author_facet de Queiroz,Luiz Jardim
Meyer, Xavier
Cardoso, Yamila Paula
Bahechar, Ilham A.
Covain, Raphaël
Parente, Thiago E.M.
Torrente-Vilara, Gislene
Buckup, Paulo A.
Montoya-Burgos, Juan I.
author_sort de Queiroz,Luiz Jardim
title Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish
title_short Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish
title_full Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish
title_fullStr Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish
title_full_unstemmed Western Amazon was a center of Neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse Hypostomus catfish
title_sort western amazon was a center of neotropical fish dispersal, as evidenced by the continental-wide time-stratified biogeographic analysis of the hyper-diverse hypostomus catfish
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/124982
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