Using urinary parameters to estimate seasonal variation in the physical condition of female white‐faced capuchin monkeys ( Cebus capucinus imitator )

Dados Bibliográficos

ID8312147
AutoresMackenzie L Bergstrom (Department of Anthropology and Archaeology University of Calgary Calgary Alberta T2N 1N4 Canada, autor correspondente), M E Thompson (0000-0003-2451-6397, Department of Anthropology University of New Mexico Albuquerque New Mexico 87131), Amanda D Melin (0000-0002-0612-2514, Department of Anthropology and Archaeology University of Calgary Calgary Alberta T2N 1N4 Canada), Linda Marie Fedigan (0000-0001-9343-629X, Department of Anthropology and Archaeology University of Calgary Calgary Alberta T2N 1N4 Canada)
Ano2017
Volume163
Fascículo4
Páginas707-715
Data de publicação2017-08-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAmerican Journal of Physical Anthropology (JOURNAL)
Identificadores do periódicoISSN: 0002-9483 • E-ISSN: 1096-8644
EditoraWiley (PUBLISHER • GB)
DOI10.1002/ajpa.23239
PMID28555757
OpenAlexW2620248290
IdiomaEN
Citações recebidas3
Referências citadas49

OBJECTIVES: The physical condition of females depends on access to resources, which vary over space and time. Assessing variation in physical condition can help identify factors affecting reproductive success, but noninvasive measurement is difficult in wild animals. Creatinine concentration relative to the specific gravity (i.e., density) of urine has promise for noninvasively quantifying the relative muscle mass (RMM) of wild primates. We verified the relationship between these urinary parameters for wild white-faced capuchin monkeys, and assessed temporal changes in the RMM of females across groups and between periods of high and low resource abundance. MATERIALS AND METHODS: We collected urine from 25 adult females in three groups across varying seasons at Sector Santa Rosa, Costa Rica. We measured the specific gravity and creatinine concentration of 692 samples and the effect of specific gravity on creatinine concentration. We used the residuals of this relationship to measure effects of group and season using mixed-effects models. RESULTS: Specific gravity significantly predicted creatinine concentration. Season, group membership and the interaction between these variables were significant predictors of residual creatinine variation. Specifically, RMM was higher during months with high fruit energy density, lower in one social group, and less variable among females in the smallest group. DISCUSSION: Our findings suggest that specific gravity and creatinine may be used as urinary parameters to make inferences about the RMM of capuchins. Using this technique, we infer that females experienced changes in muscle mass according to variation in resource energy availability and social group variation

Animal science · Biology · Creatinine · Specific gravity · Urinary system · Urine · Urine specific gravity · Chemistry · Demography · Ecology · Endocrinology · Hemispheric Asymmetry in Neuroscience · Primate Behavior and Ecology · Stress Responses and Cortisol