Phylogeography and diversification of Oriental weaverbirds(Ploceus spp.):A gradual increase of eurytopy  

作　　者：Abdul Razaq Giovanni Forcina Urban Olsson Qian Tang Robert Tizard Naing Lin Nila Pwint Aleem Ahmed Khan 

机构地区：[1]Institute of Pure&Applied Biology,Zoology Division,Bahauddin Zakariya University,Multan,Pakistan [2]Universidad de Alcala(UAH),Global Change Ecology and Evolution Research Group(GloCEE),Departamento de Ciencias de La Vida,28805,Alcala de Henares,Spain [3]CIBIO,Centro de Investigaçao em Biodiversidade e Recursos Genaeticos,InBIO Laborataorio Associado,Universidade do Porto,Campus de Vairao,4485-661,Vairao,Portugal [4]BIOPOLIS Program in Genomics,Biodiversity and Land Planning,CIBIO,Campus de Vairao,4485-661,Vairao,Portugal [5]Department of Biology and Environmental Science,University of Gothenburg,Box 463,SE-40530,Gothenburg,Sweden [6]Gothenburg Global Biodiversity Centre,Box 461,SE-40530,Gothenburg,Sweden [7]Department of Biological Sciences,National University of Singapore,16 Science Drive 4,Republic of Singapore [8]Wildlife Conservation Society,Global Conservation Program,Bronx,NY,USA [9]Nature and Wildlife Conservation Division,Ministry of Natural Resources and Environmental Conservation,Naypyidaw,Myanmar

出　　处：《Avian Research》2023年第4期511-522,共12页鸟类学研究（英文版）

基　　金：supported by fellowships of the Ministry of Universities of the Spanish Government(María Zambrano/Next Generation EU);the Portuguese Foundation for Science and Technology(FCT,PTDC/BAA-AGR/28866/2017)to GF.

摘　　要：Weaverbirds are a speciose group of colorful passerines inhabiting the Old World Tropics.Nevertheless,the Oriental weaverbirds(Ploceus spp.),widespread across southern Asia,are much less diverse and restricted to a few ecological niches compared to their African counterpart.To investigate their phylogeography,we retrieved 101 samples of Baya Weaver(P.philippinus),Streaked Weaver(P.manyar),Black-Throated Weaver(P.benghalensis)and Asian Golden Weaver(P.hypoxanthus)along with GenBank sequences of Finn's Weaver(P.megarhynchus).We reconstructed the first molecular phylogeny based on a dataset consisting of both mitochondrial and nuclear genes,dating the most recent common ancestor of Oriental Ploceus to~11 mya.Subsequent speciation appears to have been a combination of divergence within the Indian subcontinent and dispersal across a barrier situated between the Indian subcontinent and the Indochinese region,which provided habitats with a varying degree of isolations and ultimately promoted divergences in allopatry.Two descendants of the earliest nodes,P.megarhynchus and P.hypoxanthus,are both rare and local,often found near large river systems,which perhaps reflects niche conservatism and a lack of adaptive potential.The three smaller species are all widespread,common and less habitat specific.The most recent divergence,between western and eastern P.philippinus populations,is supported by both phylogenetic and morphological evidence,pointing toward limited gene flow between them.However,a zone of intergradation may exist in Myanmar and Brahmaputra flood plains,thus preventing a recommendation for species level recognition without further study.

关 键 词：Avian phylogenetics Indian subcontinent Indochinese region Multilocus analyses Ploceidae 

分 类 号：Q958.1[生物学—动物学]