Food abundance and weather influence habitat-specific ranging patterns in forest- and savanna mosaic-dwelling red-tailed monkeys (Cercopithecus ascanius).
guenon
hominin adaptation
movement ecology
resource distribution
savanna-woodland mosaic
Journal
American journal of physical anthropology
ISSN: 1096-8644
Titre abrégé: Am J Phys Anthropol
Pays: United States
ID NLM: 0400654
Informations de publication
Date de publication:
10 2019
10 2019
Historique:
received:
21
02
2019
revised:
16
06
2019
accepted:
01
08
2019
pubmed:
20
8
2019
medline:
17
4
2020
entrez:
20
8
2019
Statut:
ppublish
Résumé
Primates that live in predominantly forested habitats and open, savanna mosaics should exhibit behavioral responses to differing food distributions and weather. We compared ecological constraints on red-tailed monkey ranging behavior in forest and savanna mosaic environments. Intraspecific variation in adaptations to these conditions may reflect similar pressures faced by hominins during the Plio-Pleistocene. We followed six groups in moist evergreen forest at Ngogo (Uganda) and one group in a savanna-woodland mosaic at the Issa Valley (Tanzania). We used spatial analyses to compare home range sizes and daily travel distances (DTD) between sites. We used measures of vegetation density and phenology to interpolate spatially explicit indices of food (fruit, flower, and leaves) abundance. We modeled DTD and range use against food abundance. We modeled DTD and at Issa hourly travel distances (HTD), against temperature and rainfall. Compared to Issa, monkeys at Ngogo exhibited significantly smaller home ranges and less variation in DTD. DTD related negatively to fruit abundance, which had a stronger effect at Issa. DTD and HTD related negatively to temperature but not rainfall. This effect did not differ significantly between sites. Home range use did not relate to food abundance at either site. Our results indicate food availability and thermoregulatory constraints influence red-tailed monkey ranging patterns. Intraspecific variation in home range sizes and DTD likely reflects different food distributions in closed and open habitats. We compare our results with hypotheses of evolved hominin behavior associated with the Plio-Pleistocene shift from similar closed to open environments.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
217-231Subventions
Organisme : American Society of Primatologists
ID : 2017 General Small Grant
Pays : International
Organisme : Salk Center for Academic Research and Training in Anthropogeny
Pays : International
Organisme : UCSD
Pays : International
Organisme : Liverpool John Moores University
Pays : International
Informations de copyright
© 2019 Wiley Periodicals, Inc.
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