Your browser doesn't support javascript.
loading
Short dispersal distance of males in a wild white-handed gibbon (Hylobates lar) population.
Matsudaira, Kazunari; Ishida, Takafumi; Malaivijitnond, Suchinda; Reichard, Ulrich H.
Afiliação
  • Matsudaira K; Unit of Human Biology and Genetics, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.
  • Ishida T; Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
  • Malaivijitnond S; Unit of Human Biology and Genetics, Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.
  • Reichard UH; Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
Am J Phys Anthropol ; 167(1): 61-71, 2018 09.
Article em En | MEDLINE | ID: mdl-29737526
OBJECTIVES: It has long been recognized that in gibbons both sexes disperse from the natal group. However, the fate of dispersed individuals was rarely documented. Here we provide the first detailed information on sex differences in dispersal patterns by analyzing the spatial genetic structure of a well-known white-handed gibbon (Hylobates lar) population. MATERIALS AND METHODS: Mitochondrial DNA (mtDNA) and Y-chromosomal haplotypes, and autosomal microsatellite genotypes were determined for individuals of the Mo Singto study site, Khao Yai National Park, Thailand. Mantel tests for the three genetic marker types were performed for 17 gibbon groups comprising 23 adult males and 18 adult females. RESULTS: Significant positive Mantel correlations were observed for spatial distance and both autosomal microsatellite-based as well as Y-chromosomal haplotype-based genetic distance among adult males. Neighboring adult males tended to be genetically related and share Y-chromosomal haplotypes. Conversely, no significant Mantel correlations were observed either in autosomal microsatellites or mtDNA among adult females. DISCUSSION: Our results confirm, at a genetic level, hypotheses from long-term demographic observations that white-handed gibbon males of the Mo Singto population primarily disperse into adjacent groups. Instead, females disperse more opportunistically either to adjacent or more distant groups. This sex-specific difference reflects an apparent greater tolerance between males than between females. The higher tolerance of adult males allows the formation of stable multimale groups and facilitates male dispersal into an adjacent group. Stable multifemale groups have never been documented for white-handed gibbons probably due to feeding competition between females.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cromossomo Y / DNA Mitocondrial / Hylobates Limite: Animals País/Região como assunto: Asia Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cromossomo Y / DNA Mitocondrial / Hylobates Limite: Animals País/Região como assunto: Asia Idioma: En Ano de publicação: 2018 Tipo de documento: Article