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Abstract:

Seasonal fluctuations in resource abundance often cause primates to change their feeding behavior and ecology. The objective of this study was to examine the response of a largely frugivorous monkey, the grey-cheeked mangabey (Lophocebus albigena), to seasonal variations in fruit abundance. We used 15-min scan sampling to quantify feeding, activity, and habitat use by monkeys between February and December 1998 in the Dja Reserve, Cameroon. L. albigena were found to have omnivorous feeding habits, consuming the fruits, seeds, leaves, and flowers of 132 plant species. Although monkeys fed from many plant species, only five plant species accounted for 45% of all feeding records. The number of feeding observations on a plant species was significantly correlated with its fruit production. L. albigena responded to fruit-lean periods by shifting from a diet dominated by fruit to one dominated by seeds, flowers, and young leaves. This diet shift coincided with greater use of swamp habitat and higher dietary diversity. L. albigena spent the greatest percentage of scan samples feeding and traveling, but activities varied significantly over the day. Individuals spent a significantly higher percentage of scan samples feeding during the fruit-rich season than in the fruit-lean season. Comparing our results to those of studies in Gabon and Uganda, we found that L. albigena differ across regions in the number of plant species they consume and time spent feeding. These differences may be a result of variations in tree diversity or the strength of seasonal fluctuations in resource abundance among sites.

Registro:

Documento: Artículo
Título:Seasonal variation in the feeding ecology of the grey-cheeked mangabey (Lophocebus albigena) in Cameroon
Autor:Mudry, M.D.; Rahn, I.M.; Solari, A.J.
Filiación:Grupo de Investigación en Biología Evolutiva (GIBE), Depto. de Biologia, Ciudad Universitaria, Buenos Aires, Argentina
Centro de Investigaciones de Reproducción (CIR), Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
Facultad de Medicina, Paraguay 2155 - p. 10, (1121) Buenos Aires, Argentina
Palabras clave:Activity budget; Cameroon; Feeding ecology; Lophocebus albigena; Mangabey; Seasonality; feeding ecology; frugivory; omnivory; primate; seasonal variation; animal; animal behavior; article; Cameroon; Cercocebus; comparative study; feeding behavior; female; fruit; Gabon; male; physiology; plant; psychological aspect; season; social behavior; Uganda; Animals; Behavior, Animal; Cameroon; Cercocebus; Feeding Behavior; Female; Fruit; Gabon; Male; Plant Components; Seasons; Social Behavior; Uganda; Cameroon
Año:2001
Volumen:54
Número:2
Página de inicio:91
Página de fin:105
DOI: http://dx.doi.org/10.1002/ajp.1015
Título revista:American Journal of Primatology
Título revista abreviado:Am. J. Primatol.
ISSN:02752565
CODEN:AJPTD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02752565_v54_n2_p91_Mudry

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Citas:

---------- APA ----------
Mudry, M.D., Rahn, I.M. & Solari, A.J. (2001) . Seasonal variation in the feeding ecology of the grey-cheeked mangabey (Lophocebus albigena) in Cameroon. American Journal of Primatology, 54(2), 91-105.
http://dx.doi.org/10.1002/ajp.1015
---------- CHICAGO ----------
Mudry, M.D., Rahn, I.M., Solari, A.J. "Seasonal variation in the feeding ecology of the grey-cheeked mangabey (Lophocebus albigena) in Cameroon" . American Journal of Primatology 54, no. 2 (2001) : 91-105.
http://dx.doi.org/10.1002/ajp.1015
---------- MLA ----------
Mudry, M.D., Rahn, I.M., Solari, A.J. "Seasonal variation in the feeding ecology of the grey-cheeked mangabey (Lophocebus albigena) in Cameroon" . American Journal of Primatology, vol. 54, no. 2, 2001, pp. 91-105.
http://dx.doi.org/10.1002/ajp.1015
---------- VANCOUVER ----------
Mudry, M.D., Rahn, I.M., Solari, A.J. Seasonal variation in the feeding ecology of the grey-cheeked mangabey (Lophocebus albigena) in Cameroon. Am. J. Primatol. 2001;54(2):91-105.
http://dx.doi.org/10.1002/ajp.1015