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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Effect of habitat quality on the ecological behaviour of a temperate-living primate: Time-budget adjustments
Primates, Volume 54, No. 3, Year 2013
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Description
Barbary macaques, like other non-human primates living in highly seasonal temperate environments, display high monthly variations in their diet. In addition, their diet changes according to the habitat type they colonize and to the degree of habitat degradation due to resource exploitation by local people, in particular through pastoralism. We studied the time-budget adjustments of wild Barbary macaques in three cedar-oak forests impacted by different intensities of grazing pressure from goats and sheep. We examined how diet variations influenced the time monkeys spent in their activities and their day range lengths (i.e. their energy costs). At three studied sites, diet composition and time budgets showed marked seasonal variations. Diet composition had a strong influence on monkeys' time budget. In the forest where pastoralism was the highest, diet included a greater proportion of underground resources, shrub fruit and acorns, which led to an increase in the time spent foraging and moving, as well as an important increase in day range lengths. Energy costs were therefore higher in a degraded environment than in a suitable habitat. The monkeys living in forests subjected to pastoralism took advantage of increased day lengths to spend more time searching for food. However, in the forest with the highest pastoralism pressure, although monkeys spent more time foraging, they spent less time feeding than monkeys at the other sites. In addition, they appeared to have reached the limits of the available time they could devote to these activities, as their diurnal resting time was at its lowest level over several months. Temperature variations did not appear to modify monkeys' time budgets. In the least favourable habitat, saving time from resting activity allowed monkeys to maintain a relatively high level of social activity, partly linked to rearing constraints. © 2013 Japan Monkey Centre and Springer Japan.
Authors & Co-Authors
Menard, Nelly
France, Rennes
Université de Rennes
Motsch, Peggy
France, Rennes
Université de Rennes
Delahaye, Alexia
France, Rennes
Université de Rennes
Saintvanne, Alice
France, Rennes
Université de Rennes
Le Flohic, Guillaume
France, Rennes
Université de Rennes
Dupé, Sandrine
France, Rennes
Université de Rennes
Vallet, Dominique
France, Rennes
Université de Rennes
Qarro, Mohamed
Morocco, Agdal Rabat
Ecole Nationale Forestière D'ingénieurs
Pierre, Jean Sébastien
France, Rennes
Écosystèmes, Biodiversité, Évolution
Statistics
Citations: 27
Authors: 9
Affiliations: 3
Identifiers
Doi:
10.1007/s10329-013-0350-x
ISSN:
00328332
Research Areas
Food Security