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Demographics of captive De Brazza's guenons
Author(s) -
Brennan E. Jean
Publication year - 1989
Publication title -
zoo biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.5
H-Index - 54
eISSN - 1098-2361
pISSN - 0733-3188
DOI - 10.1002/zoo.1430080106
Subject(s) - biology , fertility , demography , demographics , population , incidence (geometry) , mortality rate , zoology , physics , sociology , optics
Survival and fertility rates of captive De Bràzza's guenons ( Cercopithecus neglectus ), based on the 575 known captive animals in 70 zoos and institutions worldwide, were calculated. The results suggest that the high level of infant mortality (males: dx (day 1‐yr 1) = 0.73 males; females; dx (day 1‐yr 1) = 0.51), low fertility rate (Σ m′ x = 1.69), and differential mortality due to the incidence of stillbirths (males: dx (day 1) = 0.676, females: dx (day 1) = 0.442) may threaten the viability of this population. Possible causes of differential mortality rates are discussed and questions requiring additional research are identified.