Strier K B
Department of Anthropology, Beloit College, Wisc.
Folia Primatol (Basel). 1989;52(1-2):70-7. doi: 10.1159/000156383.
Data were collected on one group of muriquis, or woolly spider monkeys (Brachyteles arachnoides) during a 14-month study at Fazenda Montes Claros, Minas Gerais, Brazil to examine the effects of food patch size on muriqui feeding associations. Muriqui food patches were larger than expected from the availability of patch sizes in the forest; fruit patches were significantly larger than leaf patches. Feeding aggregate size, the maximum number of simultaneous occupants, and patch occupancy time were positively related to the size of fruit patches. However, a greater number of individuals fed at leaf sources than expected from the size of these patches. Adult females tended to feed alone in patches more often than males, whereas males tended to feed in single-sexed groups more often than females. Yet in neither case were these differences statistically significant.
在巴西米纳斯吉拉斯州蒙特斯克拉罗斯庄园进行的一项为期14个月的研究中，收集了一组绒毛蛛猴（Brachyteles arachnoides）的数据，以研究食物斑块大小对绒毛蛛猴觅食关联的影响。绒毛蛛猴的食物斑块比根据森林中斑块大小的可获得性预期的要大；果实斑块明显大于树叶斑块。觅食群体大小、同时占据者的最大数量和斑块占据时间与果实斑块大小呈正相关。然而，在树叶来源处觅食的个体数量比根据这些斑块大小预期的要多。成年雌性比雄性更倾向于在斑块中单独觅食，而雄性比雌性更倾向于在单性别群体中觅食。然而，在这两种情况下，这些差异均无统计学意义。
