Article (Scientific journals)
Diversity and endemism of Murinae rodents in Thai limestone karsts
Latinne, Alice; Waengsothorn, Surachit; Rojanadilok, Prateep et al.
2013In Systematics and Biodiversity, 11 (3), p. 323-344
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Keywords :
GMYC lineages; limestone karsts; Murinae rodents; Rattini; Southeast Asia; species delimitation; Thailand
Abstract :
[en] This study aims to investigate the species diversity of rodents living in karst ecosystems of Thailand. A survey has been conducted throughout Thailand, 122 karsts sampled and 477 Murinae rodents live-trapped. Phylogenetic reconstructions were carried out using two mitochondrial markers (cytb, COI). A sequence-based species delimitation method completed by the analysis of the level of genetic divergence was then applied to define species boundaries within our dataset. The phylogenetic position of Niviventer hinpoon was also investigated and sequences obtained from the holotype specimen of this species were used to reliably identify samples of N. hinpoon. A total of 12 described Murinae species, corresponding to 17 deeply divergent genetic lineages, were encountered in limestone karsts of Thailand. Our study revealed an important genetic diversity within the traditionally recognized species Maxomys surifer (four highly divergent genetic lineages), Leopoldamys neilli (two highly divergent genetic lineages) and Berylmys bowersi (two highly divergent genetic lineages). These species could be considered as species complex and require further taxonomic work. This study also provides valuable information on the distribution of the two rodent species endemic to limestone karsts of Thailand, L. neilli and N. hinpoon. Leopoldamys neilli was the most abundant species encountered in Thai karsts during our survey. However, L. neilli specimens from western Thailand are genetically highly divergent from the remaining populations of L. neilli and could represent a separate species. Niviventer hinpoon, phylogenetically closely related to N. fulvescens, is much rarer and its distribution limited to central Thailand. Most of the other captured species are typically associated with forest ecosystems. This study suggests that limestone karsts play a key role in the preservation of the rodent species endemic to such habitat, but they would also provide refuges for the forest-dwelling Murinae rodents in deforested regions.
Disciplines :
Genetics & genetic processes
Zoology
Author, co-author :
Latinne, Alice ;  Université de Liège - ULiège > Département des sciences de la vie > Génétique
Waengsothorn, Surachit
Rojanadilok, Prateep
Eiamampai, Krairat
Sribuarod, Kriangsak
Michaux, Johan  ;  Université de Liège - ULiège > Département des sciences de la vie > Génétique
Language :
English
Title :
Diversity and endemism of Murinae rodents in Thai limestone karsts
Publication date :
05 September 2013
Journal title :
Systematics and Biodiversity
ISSN :
1477-2000
eISSN :
1478-0933
Publisher :
Taylor & Francis
Volume :
11
Issue :
3
Pages :
323-344
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 September 2013

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