AGE AND SEX-DIFFERENCES IN THE DIET AND FEEDING STRATEGIES OF THE GREEN MONKEY, CERCOPITHECUS-SABAEUS
AGE AND SEX-DIFFERENCES IN THE DIET AND FEEDING STRATEGIES OF THE GREEN MONKEY, CERCOPITHECUS-SABAEUS
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DOI:
10.1016/s0003-3472(83)80001-3
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发表时间:
1983-01-01
期刊:
影响因子:
2.5
通讯作者:
HARRISON, MJS
中科院分区:
文献类型:
--
作者:
HARRISON, MJS
The diet and activity patterns of a group of green monkeys (C. sabaeus) living in the Parc National du Niokolo-Koba, Senegal, were studied over a complete annual cycle and some important age and sex differences were found. In the annual diet, no clear age-sex differences emerged for feeding on fruit, invertebrates or other (mainly foliage) foods, but adult males ate more flowers. In the annual time-budget, no sex differences were found among immature monkeys, but adult females spent less time feeding than adult males. This difference is accounted for by the greater metabolic body-size of adult males. There were seasonal differences among the adults: males spent more time feeding than females in the dry season, but not in the wet season. Males ate more fruit and flowers in the dry season; females ate more foliage in the wet season. Lactating females fed less than nonlactating females. The differences between adults are attributed to superior competitive ability by males over 1st choice foods (fruit and flowers) and to alternative energetic and nutritional strategies of lactating females in response to increased protein requirements.