Titre
Taxonomic status of Hylomys parvus and Hylomys suillus (Insectivora: Erinaceidae): biochemical and morphological analyses
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Ruedi, M.
Auteure/Auteur
Chapuisat, M.
Auteure/Auteur
Iskandar, D.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0022-2372
Statut éditorial
Publié
Date de publication
1994
Volume
75
Numéro
4
Première page
965
Dernière page/numéro d’article
978
Peer-reviewed
Oui
Langue
anglais
Notes
http://www.jstor.org/stable/1382478
Résumé
The genus Hylomys was thought to be represented by a single widespread species. Biochemical and morphometric analyses of several Southeast Asian populations reveal that Sumatra is inhabited by two distinct species, the dwarf gymnure (H. parvus) and the lesser gymnure (H. suillus). The absence of interbreeding between these two groups along with their relatively ancient common origins are documented by several diagnostic loci and a large Nei's genetic distance (D = 0.353 +/- 0.035). The dwarf gymnure has been reported only from the slopes of the Mt. Kerinci volcano in Sumatra, where the species lives at higher elevations than its potential competitor, the lesser gymnure. Other populations of Hylomys from Java, Borneo, and Malaysia are more closely related to the Sumatran sample of H. suillus, but they exhibit strong interpopulational genetic differentiation (D = 0.165 +/- 0.040) that may be accounted for by their isolated montane habitat. In addition, a principal-components analysis based on 16 measurements of the skull clearly separates adult specimens of both species. There is little overlap in the measurements between H. suillus (which is larger) and H. parvus. On Sumatra where both species may be sympatric, the notched space between premaxillary tips, soft texture of the fur, and more delicate skull and dentition are diagnostic of H. parvus.
PID Serval
serval:BIB_C6EF711CC440
Date de création
2008-01-24T18:22:37.890Z
Date de création dans IRIS
2025-05-20T22:50:12Z