Document Detail

Comparisons of food availability and group density of Japanese macaques in primary, naturally regenerated, and plantation forests.
MedLine Citation:
PMID:  16015658     Owner:  NLM     Status:  MEDLINE    
We compared food availability and group density of Japanese macaques in Yakushima, southern Japan, among primary forest and two habitats that had been disturbed by logging and had different regeneration histories. The study was conducted in an undisturbed national park, forest that was logged 7-18 years ago and later naturally regenerated, and forest that was logged 19-27 years ago and later planted with Japanese cedar (Cryptomeria japonica) trees. The plantation forest was primarily composed of large Cryptomeria japonica trees at low stand density, while the naturally regenerated forest was composed of many small trees. The total basal area and number of trees in the primary forest were comparable to those in the plantation forest. Annual fruit production was greatest in the naturally regenerated forest, intermediate in the primary forest, and negligible in the plantation forest. Herb availability was high in the naturally regenerated forest, but low in the primary and plantation forests. The group density of Japanese macaques was high in the naturally regenerated forest, intermediate in the primary forest, and low in the plantation forest. Since group size in the naturally regenerated forest was small, individual density was almost the same as in the primary forest. These results suggest that the effects of regeneration on macaques vary between the two habitats. The plantation forest consisted mostly of Cryptomeria japonica, which supplies only flowers as food in a limited season, and had a lower density of macaques. On the other hand, in the naturally regenerated forest, fruit production and herb availability were high (probably because of the enhanced light conditions after logging), and the density of macaques was as high as in the primary forest.
Goro Hanya; Koichiro Zamma; Shuhei Hayaishi; Shinichi Yoshihiro; Yosuke Tsuriya; Shuji Sugaya; Masahiro M Kanaoka; Sachiko Hayakawa; Yukio Takahata
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of primatology     Volume:  66     ISSN:  0275-2565     ISO Abbreviation:  Am. J. Primatol.     Publication Date:  2005 Jul 
Date Detail:
Created Date:  2005-07-20     Completed Date:  2005-10-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8108949     Medline TA:  Am J Primatol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  245-62     Citation Subset:  IM    
Copyright Information:
(c) 2005 Wiley-Liss, Inc.
Primate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.
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MeSH Terms
Cryptomeria / growth & development
Feeding Behavior / physiology*
Macaca / physiology*
Plant Components, Aerial / growth & development
Population Density*
Regression Analysis
Social Behavior*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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