Journal
FOLIA PRIMATOLOGICA
Volume 86, Issue 1-2, Pages 134-139Publisher
KARGER
DOI: 10.1159/000368670
Keywords
Longevity; Lifespan; Life table; Age-specific fecundity; Reproductive lifespan; Reproductive senescence; Postreproductive lifespan; Mortality rate
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [09041158, 16252004, 21405015]
- Canon Foundation in Europe
- Kyoto University Foundation
- German Primate Center
- Young Researcher Overseas Visits Program for Vitalizing Brain Circulation of JSPS
- Grants-in-Aid for Scientific Research [09041158, 21405015, 16252004] Funding Source: KAKEN
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The lifespan and age-specific fecundity of female ring-tailed lemurs (Lemur catta) were estimated from a 24-year longitudinal dataset based on individual identification at Berenty Reserve, Madagascar. The mean lifespan of females in 10-year (1989-1998) birth cohorts was 4.9 +/- 4.9 years (n = 77), and the longest recorded lifespan in the population was 20 years. The mortality rate of adult females increased to >= 20% at 10-11 years old and reached 33-50% at 12-15 years old. Although the birth rate of old females (12-17 years old) was 72.0%, slightly lower than that of prime adult females (4-11 years old), i.e. 80.2%, no significant difference was found between them. Half of the females who reached the age of 12 years gave birth in the last year of their life. The oldest mother to give birth was 17 years old. These results suggest that most females can maintain reproductive performance in their later life and that there is no evidence for a postreproductive lifespan in this species. (C) 2015 S. Karger AG, Basel
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