Evidence for social enhancement of reproduction in two Eulemur species
Abstract 10.1002/(SICI)1098-2361(1996)15:13.3.CO;2-G Across the past 20 years, captive reproduction has declined steeply in mongoose lemurs (Eulemur mongoz) and has been only moderately successful in black lemurs (E. macaco). At the same time, reproduction has been so successful in brown lemurs (E. fulvus) that contraception has been used since 1987 to limit captive numbers. No obvious […]
Factors influencing stereotyped behavior of primates in a zoo
Abstract 10.1002/zoo.1430130308.abs Stereotyped behavior is the uniform repetition of a motor pattern that occurs at a higher frequency than considered typical for a species when observed in a natural environment. Stereotypies may be considered atypical behavior and usually indicate that an animal’s psychological welfare is at a suboptimal level. Instantaneous scans at 30-sec intervals during […]