Survival rates and mortality risks of Plecturocebus cupreus at the California National Primate Research Center.

Autor: Zablocki-Thomas P; California National Primate Research Center, Davis, California, USA., Rebout N; FaunaStats, Schiltigheim, France., Karaskiewicz CL; California National Primate Research Center, Davis, California, USA.; Department of Psychology, University of California, Davis, California, USA., Bales KL; California National Primate Research Center, Davis, California, USA.; Department of Psychology, University of California, Davis, California, USA.; Department of Neurobiology, Physiology, and Behavior, University of California, Davis, California, USA.
Jazyk: angličtina
Zdroj: American journal of primatology [Am J Primatol] 2023 Oct; Vol. 85 (10), pp. e23531. Date of Electronic Publication: 2023 Jul 09.
DOI: 10.1002/ajp.23531
Abstrakt: This article describes survivorship and explores factors affecting mortality risks in a captive colony of coppery titi monkeys (Plecturocebus cupreus) housed at the California National Primate Research Center (CNPRC), at UC Davis, in Davis, CA. We analyzed data collected on individuals since the colony's creation in the 1960s, with a sample of 600 animals with partially complete information (date of birth, age at death, body mass, parental lineage). We used three methods: (1) Kaplan-Meier regressions followed by a log-rank test to compare survival in male and female titi monkeys, (2) a breakpoint analysis to identify shifts in the survival curves, and (3) Cox regressions to test the effect of body mass change, parental pair tenure, and parental age on mortality risk. We found that males tend to have a longer median lifespan than females (14.9 and 11.4 years; p = 0.094) and that survival decreases earlier in males than in females during adulthood (9.8 and 16.2 years). A body mass loss of 10% from adulthood to the time of death led to a 26% higher risk of dying (p < 0.001) as compared to an individual with stable body mass. We found no evidence of sociobiological factors on mortality risks (parental age, parental pair tenure), but an exploratory analysis suggested that a higher rate of offspring conceptions increases mortality risks. This description of factors influencing survival and mortality in titi monkeys is a first step toward understanding aging in this species to consider titi monkeys as a primate model for socioemotional aging.
(© 2023 The Authors. American Journal of Primatology published by Wiley Periodicals LLC.)
Databáze: MEDLINE
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