Cycles of Activity, Group Composition, and Diet of Lemur mongoz mongoz Linnaeus 1766 in Madagascar

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Abstract
A preliminary study of the ecology and behavior of Lemur mongoz mongoz was carried out in the northwest of Madagascar. The animals were observed for approximately 250 h in July till August, 1973, and for 50 h in June, 1974. L.m.mongoz has been reported to be diurnal and to live in groups of 6–8 individuals. However, we found the animals to be nocturnal and that groups contained an adult male, an adult female and their offspring (groups numbering from 2 to 4 individuals). L. m. mongoz is thus the only species of the genus Lemur studied to date that is active exclusively at night and that lives in family groups. L.m.mongoz was also found to have a very specialized diet. During our study, it was observed to feed on only five species of plant and mainly on the nectar-producing parts (flowers and nectaries) of four of these species. It spent most of its feeding time licking nectar from the flowers of the kapok tree, Ceiba pentandra, and is probably a major pollinator of this tree in Madagascar. In Africa and South and Central America, the kapok tree is usually bat-pollinated. A dietary preference for nectar, although common among bats, has not previously been observed in primates.

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