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Accueil du site → Doctorat → Royaume-Uni → 1965-1980 → Some inter-population variation in the behavioural ecology of cercopithecus aethiops tantalus (Sahel)

University of Sussex (1977)

Some inter-population variation in the behavioural ecology of cercopithecus aethiops tantalus (Sahel)

Kavanagh, M. 

Titre : Some inter-population variation in the behavioural ecology of cercopithecus aethiops tantalus (Sahel)

Auteur : Kavanagh, M. 

Université de soutenance  : University of Sussex

Grade : Doctor of Philosophy (PhD) 1977

Résumé partiel
Short-term studies were made of the behaviour of tantalus monkeys in three habitats in order to describe any variation found and to investigate the functional relationship between that variation and the environment. The monkeys were studied in arid sahelian (thorn) savannah, broad-leaved guinea savannah and a mixed area of secondary forest and farmland. The three study sites are described in detail, and included in the descriptions are the results of brief surveys of the vegetation. The farmed forest was significantly vegetally denser than either of the savannah sites, providing more cover for the monkeys. The forest and the guinea-savannah were equally diverse in numbers of plant species but the sahel was poorer in this respect. The two savannah sites were more markedly seasonal in vegetal production than was the farmed forest. Feeding could not be studied quantitatively in the forest but in both savannah habitats the monkeys spent approximately one third of their total time and one third of their feeding time on the ground. Feeding techniques were typical for the species as described by other investigators and reflected a lack of dietary specialization. Meat and invertebrates were eaten as well as vegetable matter, and the proportions of different foodparts in the diet varied greatly both from month to month within each habitat and between habitats. Some social synchrony of feeding independent of the time of day at which the monkeys fed was observed at both savannah sites, but the diurnal cycles of feeding showed great daily variations. In the savannah areas, ranging patterns appeared to be determined by a combination of the distribution of food and water supplies and the desiccating effects of solar radiation. In the farmed forest, these constraints were eased and ranging patterns were more irregular.

Présentation (ProQuest)

Page publiée le 10 juin 2021