Geissmann Thomas, Mutschler Thomas
Anthropological Institute, University Zürich-Irchel, Winterthurerstrasse 190, 8057, Zürich, Switzerland.
Primates. 2006 Oct;47(4):393-6. doi: 10.1007/s10329-006-0189-5. Epub 2006 May 31.
We carried out a short study on the diurnal call distribution of two sympatric lemurs in the Réserve Naturelle Intégrale Zahamena (eastern Madagascar). Whereas indris (Indri) song bouts were clearly concentrated in the early morning hours, the roar/shriek choruses of ruffed lemurs (Varecia) exhibited a much more even distribution throughout the day. These differences in distribution pattern support earlier claims that indri song bouts are more likely to serve territorial functions, whereas ruffed lemur loud calls may serve both spacing and/or alarm call functions.
我们对位于马达加斯加东部的扎哈梅纳自然保护区内两种同域分布的狐猴的昼夜鸣叫分布进行了一项简短研究。大狐猴（Indri）的鸣叫时段明显集中在清晨时分，而黑白领狐猴（Varecia）的咆哮/尖叫合唱在一天中分布更为均匀。分布模式上的这些差异支持了早期的观点，即大狐猴的鸣叫时段更有可能起到领地功能，而黑白领狐猴的大声呼叫可能兼具间隔和/或警报功能。
