::: Welcome to Conservation Genome Resource Bank for Korean Wildlife :::
17_c.gif 문헌정보
17_c.gif 야생동물관련 자료 및 소식
17_c.gif 종정보
17_c.gif 보전유전학/보전생물학 자료
17_c.gif 야생동물의학 소식 및 자료
  - 천연기념물의 대상
sound.gif 갤러리
sound.gif 자유게시판 (옛날 게시판)
sound.gif 관련사이트
sound.gif 자료실
sound.gif 찾아오시는 길
보전유전학/보전생물학 자료

View Article
  운영자 2005-09-05 15:07:46 | Hit : 24251 | Vote : 8689
Subject   [자료] Skull and tooth morphology of Finnish and Japanese raccoon dogs
Ann. Zool. Fennici 35: 1–16

Skull and tooth morphology of Finnish and Japanese raccoon dogs

Kauhala, K., Viranta, S., Kishimoto, M., Helle, E. & Obara, I. 1998

The skull and tooth morphometrics of Finnish and Japanese raccoon dogs (Nyctereutes procyonoides ussuriensis and N. p. viverrinus, respectively) were examined and compared. The skulls of Finnish raccoon dogs were larger overall than those of Japanese raccoon dogs (tanukis) and were also larger relative to occipital condyle breadth, i.e. body size. Almost all measurements differed among samples in relation to skull size, indicating differences in skull shape. Mandible width and jaw height were the best measurements for discriminating among populations; the mandible is both absolutely and relatively more robust and the jaws more powerful among Finnish than among Japanese raccoon dogs. Japanese raccoon dogs have a relatively longer rostrum and longer tooth rows than Finnish raccoon dogs. Although the absolute measurements of most teeth of Finnish raccoon dogs were larger than those of Japanese raccoon dogs, the relative measurements of molars in particular were larger in Japan than in Finland, indicating a larger grinding surface among Japanese raccoon dogs. We suggest that viverrinus has adapted to a milder climate and less carnivorous diet than ussuriensis. The Japanese raccoon dog is smaller and, due to its less carnivorous diet, its head has become decreased in size and the jaws less powerful; however, since its diet consists largely of invertebrates and coarse plant material, its molars have increased relative to skull size.
 Prev   [자료] The effects of traffic on the raccoon dog (Nyctereutes procyonoides viverrinus) and other mammals in Japan
 Next   [자료] Conservation of coral reefs through active restoration measures: recent approaches and last decade progress

Copyright 1999-2024 Zeroboard / skin by daerew
151-742 서울특별시 관악구 신림9동 산56-1 서울대학교 수의과대학 85동 802호
Tel 02-888-2744, Fax 02-888-2754, E-mail cgrb@cgrb.org

Copyright © 2002-2004 CGRB All Rights Reserved