霊長類研究
Online ISSN : 1880-2117
Print ISSN : 0912-4047
ISSN-L : 0912-4047
地理情報システムによるニホンザル地域個体群の抽出と孤立度
小金沢 正昭
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ジャーナル フリー

1995 年 11 巻 2 号 p. 59-66

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抄録
The grid cell maps with 5km cell resolution were generated from the plotting distribution maps of Japanese monkey (Macaca fuscata) in 1923 (Iwano 1974; Amagasa & Ito 1978) and 1978 (Environment Agency 1981), respectively. The local populations were identified by the GIS processor “MAP II” that clumped with grid cells at 15km clumping distance. Fifty and 44 local populations were appeared from the distribution of Japanese monkey in 1923 and 1978, respectively. As compare the grid cell map in 1923 and 1978, 16 local populations were disappeared, seven were shrank, seven were divided into 24 small clumps, 19 were expanded and combined to 11 larger clumps, one local population did not change in clump size, and one new local population was discovered in 1978. The cell size of the 16 disappeared local populations were less than 10 cells.
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© 日本霊長類学会
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