Takahata Yukio, Koyama Naoki, Ichino Shinichiro, Miyamoto Naomi, Nakamichi Masayuki
School of Policy Studies, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Japan.
Primates. 2006 Oct;47(4):383-7. doi: 10.1007/s10329-006-0185-9. Epub 2006 Apr 28.
Based on data obtained over a period of 11 years from female ring-tailed lemurs (Lemur catta), we analyzed the correlation between group size and female reproductive parameters. The birth rate and mean number of surviving infants 1 year after birth per adult female generated an inverted U-shaped curve when plotted against group size (although not significant) and number of adult female members. Infant mortality rate did not have a consistent correlation with group size and number of adult female members. Thus, our findings were similar to the predictions of Wrangham's inter-group feeding competition hypothesis.
基于对雌性环尾狐猴（Lemur catta）长达11年的数据收集，我们分析了群体规模与雌性繁殖参数之间的相关性。将成年雌性的出生率和出生后1年存活婴儿的平均数量与群体规模（尽管不显著）及成年雌性成员数量作图时，得到了一条倒U形曲线。婴儿死亡率与群体规模和成年雌性成员数量之间没有一致的相关性。因此，我们的研究结果与兰厄姆的群体间觅食竞争假说的预测相似。
