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Reproduction and population growth in free-ranging mantled howling monkeys

✍ Scribed by Kenneth E. Glander

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
918 KB
Volume
53
Category
Article
ISSN
0002-9483

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✦ Synopsis

Abstract

Free‐ranging mantled howling monkey (Alouatta palliata Gray) females experienced a regular estrus cycle averaging 16.3 days, demonstrated sexual skin changes, and participated in multiple matings before becoming pregnant. Gestation averaged 186 days. The average interval between births was 22.5 months. Sexual maturity occurred at approximately 36 and 42 months for females and males, respectively. Female age at first birth was about 3Β½ years. Births were scattered during some years and clustered during others. The age, rank, and parity of the females affected infant survival. More female than male infants survived to one year of age. Increased population size was the result of immigration rather than births.

πŸ“œ SIMILAR VOLUMES

Brief report: Infant-killing and infant
Brief report: Infant-killing and infant disappearance following male takeovers in a group of free-ranging howling monkeys (Alouatta palliata) in Costa Rica
✍ Dr. Margaret R. Clarke πŸ“‚ Article πŸ“… 1983 πŸ› John Wiley and Sons 🌐 English βš– 500 KB

Events surrounding an infant-killing following a male takeover are described for a group of free-ranging howling monkeys in Costa Rica, and additional evidence is presented for infant disappearances following three previous male takeovers. Infant-killing is best interpreted in this context as a male