タイと西ジャワに分布するカニクイザル地域群間の形態学的比較

• 濱田 穣

  京都大・霊長研・形態進化

• URASOPON Nontakorn

• KAWIN Kanya

• SURYOBROTO Bambang

• MALAIVIJITNOND Suchinda

• 竹中 修

  京都大・霊長研・遺伝子情報

書誌事項

タイトル別名

• Morphological comparison among local troops of Long-tailed macaques (<i>M. fascicularis</i>) in Thailand and western Java

抄録

Introduction The evolutionary history of long-tailed macaques (Macaca fascicularis) has not been thoroughly elucidated because of the paucity of on-site data collection. We conducted field research on the diversity in various biological parameters in long-tails in Thailand and Java. Here we present the result of preliminary analyses on morphometry and body color.<BR>Materials and Methods From temporary Catch-&-Release field works, we collected morphometric and body color data from 10 troops of long-tails in Thailand and one from Indonesia. One Thai rhesus troop was also inspected in northeast Thailand. Basic statistics of body color, somatometric sizes and proportions were calculated for adult subject data, and the latitudinal correlation was Principal component analysis (PCA) was applied using major body lengths.<BR>Results and Discussion The geographical cline in body size was not clear because some northern troops were smaller, and a southern troop was larger than those expected from latitudes of their habitats. Relative tail lengths, however, showed a significant latitudinal variation, that is, northern populations tended to have relatively shorter tails (<120%) than the southern Thai populations (>125 %). The plottings of first two PCA score showed the geographical pattern: size in general and extremity proportion separated troops. The rhesus had the larger body size and rather greater relative extremity lengths to which some long-tail troops showed similarity. The body color of northern-most troop was the lightest and the most vivid, and on the other hand, that of southern-most troop in Thai was the darkest and the most dull. However, the geographical cline was not clearly observed. In conclusion, simple geographical clines as those conforming to Bergman’s and Gloger’s rules were not found between local troops of long-tails in Thailand and Java, but relative tail length and combination of morphometric size and shape showed distinctive geographic pattern. Phylogenetic and adaptational explanations are required for the geographic variation pattern, for example, supposed isolation by the Isthmus of Kra or the degree of arboreality.

収録刊行物

• 霊長類研究　Supplement

  霊長類研究　Supplement 20 (0), 37-37, 2004

  日本霊長類学会

詳細情報

• CRID: 1390001205633739520
• NII論文ID: 130006995884
• DOI: 10.14907/primate.20.0.37.0
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可