Results 141 to 150 of about 1,736 (183)
Activity budgets of Guatemalan howler monkeys (Alouatta pigra Lawrence) [PDF]
, 1982 Cunningham, Teri L.
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Commentary on the Adaptive Significance of Sociality Around Parturition Events, and Conspecific Support of Parturient Females in Some Social Mammals. [PDF]
Animals (Basel)Allen Wild C, Yon L.
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Presencia de Alouatta pigra y regeneración en fragmentos forestales de la selva lacandona
, 2011 openaire +1 more source
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Feeding ecology of the black howler monkey (Alouatta pigra) in Northern Belize
American Journal of Primatology, 1998We studied the feeding ecology of the black howler monkey (Alouatta pigra) from March 1994 to April 1995 in the Community Baboon Sanctuary in northern Belize, Central America. Activity and diet composition were recorded using continuous focal animal sampling.
S C, Silver +3 more
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Coprological Surveys of Alouatta pigra at Two Sites in Belize
International Journal of Primatology, 2006Fecal samples were collected from black howler monkeys (Alouatta pigra) in north central Belize and analyzed for evidence of endoparasite life stages. At least six types of endoparasites were found in Alouatta pigra fecal samples collected in the Lamanai Archaeological Reserve and the Community Baboon Sanctuary in 1999.
Katherine A. Eckert +7 more
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Determination of Fecal Glucocorticoid Metabolites to Evaluate Stress Response in Alouatta pigra
International Journal of Primatology, 2008Measuring fecal glucocorticoid metabolites is now a common practice to assess the stress response in primates. Nevertheless, it is important to validate the utilized immunoassay for each primate species before the technique is applied to populations in the wild.
Rodolfo Martínez-Mota +3 more
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Spatial and Diurnal Distribution of Loud Calling in Black Howlers (Alouatta pigra)
International Journal of Primatology, 2013Loud calling, i.e., howling, is the single most distinctive behavioral attribute of the social system of howler monkeys (Alouatta spp.), yet no general consensus has been established regarding its function. During a 16-mo study, we investigated the degree to which howling bouts varied in duration and spatial and temporal patterns across different ...
Sarie Van Belle +2 more
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Social Relationships Among Male Alouatta pigra
International Journal of Primatology, 2008We investigated male social relationships in 2 groups of black howlers (Alouatta pigra) in Palenque National Park, Mexico, over a 14-mo study characterized by frequent changes in male group membership. Both single males and pairs of males entered our focal groups.
Sarie Van Belle +2 more
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Feeding Competition and Group Size in Alouatta pigra
International Journal of Primatology, 2006Researchers consider group size in primates to be determined by complex relationships among numerous ecological forces. Antipredator benefits and better resource defense are the primary pressures for large groups. Conversely, intragroup limited food availability, can result in greater intragroup feeding competition and individual energy expenditure in ...
Kyle H. Knopff, Mary S. M. Pavelka
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