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title Seasonal flooding regime and ecological traits influence genetic structure of two small rodents
authors Rocha, RG; Ferreira, E; Fonseca, C; Justino, J; Leite, YLR; Costa, LP
author full name Rocha, Rita Gomes; Ferreira, Eduardo; Fonseca, Carlos; Justino, Juliana; Reis Leite, Yuri Luiz; Costa, Leonora Pires
title Seasonal flooding regime and ecological traits influence genetic structure of two small rodents
nationality internacional
source ECOLOGY AND EVOLUTION
language English
document type Article
author keywords Amazonia-Cerrado ecotone; Araguaia river; Cricetidae; mitochondrial DNA; Rodentia
keywords plus POPULATION-GROWTH; DNA POLYMORPHISM; DIVERSIFICATION; EVOLUTIONARY; NEUTRALITY; AMAZONIA; PATTERNS; DISTANCE; MAMMALS; MODELS
abstract Although codistributed species are affected by the same abiotic factors, such as rivers and seasonal flooding regimes, ecological traits, such as locomotion habits and habitat preferences, may also influence differences in levels of genetic diversity and differentiation. We examined population genetic structure and diversity of Hylaeamys megacephalus and Oecomys aff.roberti, two cricetid rodent species from the mid-Araguaia River in central Brazil, using mitochondrial DNA sequence data. Specifically, we aim to test whether the Araguaia River acts as a barrier to the gene flow of these two species and to assess how ecological traits, such as locomotion habits and habitat preferences, may influence differences in levels of genetic diversity and differentiation. As both species occur in flooded forests, neither showed genetic differences related to river banks. Oecomys aff.roberti showed stronger population structure that appears to be associated with isolation by distance. This arboreal species maintained stable populations in the Araguaia River, while the terrestrial H.megacephalus was more affected by seasonal floods, resulting in a genetic signature of population expansion. Our initial predictions were largely supported by our results given that locomotion habits and habitat preferences of each species appears to have played a role on the genetic structure of these two sympatric rodent species.
author address [Rocha, Rita Gomes; Ferreira, Eduardo; Fonseca, Carlos] Univ Aveiro, CESAM, P-3810193 Aveiro, Portugal; [Rocha, Rita Gomes; Ferreira, Eduardo; Fonseca, Carlos] Univ Aveiro, Dept Biol, P-3810193 Aveiro, Portugal; [Rocha, Rita Gomes; Reis Leite, Yuri Luiz; Costa, Leonora Pires] Univ Fed Espirito Santo, Ctr Ciencias Humanas & Nat, Dept Ciencias Biol, Lab Mastozool & Biogeog, BR-29075910 Vitoria, ES, Brazil; [Justino, Juliana] Univ Fed Espirito Santo, Dept Ciencias Biol, Nucleo Genet Aplicada Conservacao Biodiversidade, BR-29043900 Vitoria, ES, Brazil
reprint address Rocha, RG (reprint author), Univ Aveiro, CESAM, Campus Santiago, P-3810193 Aveiro, Portugal.
e-mail address rgrocha@ua.pt
researcherid number Leite, Yuri/D-4667-2009; Ferreira, Eduardo/G-2291-2010; Rocha, Rita/F-9845-2012; CESAM, UA/M-3762-2015
orcid number Leite, Yuri/0000-0002-0248-8738; Ferreira, Eduardo/0000-0003-0497-6118; Rocha, Rita/0000-0002-4410-3648;
funding agency and grant number Fundacao Ciencia e Tecnologia (FCT, Program POPHQREN); European Funds through COMPETE; FCT [PEst-C/MAR/LA0017/2013]; Conselho Nacional de Desenvolvimento Cientifico e Tenologico (CNPq, Brazil); Fundacao de Amparo a Pesquisa e Inovacao do Espirito Santo (FAPES, Brazil)
funding text Fundacao Ciencia e Tecnologia (FCT, Program POPHQREN); European Funds through COMPETE and by FCT (PEst-C/MAR/LA0017/2013); Conselho Nacional de Desenvolvimento Cientifico e Tenologico (CNPq, Brazil); Fundacao de Amparo a Pesquisa e Inovacao do Espirito Santo (FAPES, Brazil).
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cited reference count 41
times cited 2
total times cited count (wos, bci, and cscd) 2
publisher WILEY-BLACKWELL
publisher city HOBOKEN
publisher address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
issn 2045-7758
29-character source abbreviation ECOL EVOL
iso source abbreviation Ecol. Evol.
publication date DEC
year published 2014
volume 4
issue 24
beginning page 4598
ending page 4608
digital object identifier (doi) 10.1002/ece3.1336
page count 11
web of science category Ecology; Evolutionary Biology
subject category Environmental Sciences & Ecology; Evolutionary Biology
document delivery number AX1XE
unique article identifier WOS:000346736200004