Skip to main content
Dryad logo

Rhesus macaques compensate for reproductive delay following ecological adversity early in life

Citation

Luevano, Logan; Sutherland, Chris; Gonzalez, Stephanie J; Hernández-Pacheco, Raisa (2022), Rhesus macaques compensate for reproductive delay following ecological adversity early in life, Dryad, Dataset, https://doi.org/10.5061/dryad.v9s4mw6xj

Abstract

Adversity early in life can shape the reproductive potential of individuals through negative effects on health and life span. However, long-lived populations with multiple reproductive events may present alternative life history strategies to optimize reproductive schedules and compensate for shorter life spans. Here, we quantify the effects of major hurricanes and density dependence as sources of early-life ecological adversity on Cayo Santiago rhesus macaque female reproduction and decompose their effects onto the mean age-specific fertility, reproductive pace, and lifetime reproductive success (LRS). Females experiencing major hurricanes exhibit a delayed reproductive debut but maintain the pace of reproduction past debut and show a higher mean fertility during prime reproductive ages, relative to unaffected females. Increasing density at birth is associated to a decrease in mean fertility and reproductive pace, but such association is absent at intermediate densities. When combined, our study reveals that hurricanes early in life predict a delay-overshoot pattern in mean age-specific fertility that supports the maintenance of LRS. In contrast to predictive adaptive response models of accelerated reproduction, this long-lived population presents a novel reproductive strategy where females who experience major natural disasters early in life ultimately overcome their initial reproductive penalty with no major negative fitness outcomes. Density presents a more complex relation with reproduction that suggests females experiencing a population regulated at intermediate densities early in life will escape density dependence and show optimized reproductive schedules. Our results support hypotheses about life history trade-offs in which adversity-affected females ensure their future reproductive potential by allocating more energy to growth or maintenance processes at younger adult ages.

Methods

This data is based on census data collected by the Caribbean Primate Research Center of the University of Puerto Rico-Medical Sciences Campus.

Usage Notes

The data has nine variables:

season - birth season of focal female

id - id of focal female

age - age of focal female

offspring - 0 = focal female did not produce an offspring, 1 = focal female produced an offspring

exit - age at exit from the population due to death or right censorship

cohort - birth cohort (hurricane or non-hurricane)

censorship - no = focal female died in the population, yes = focal female was right censored

denisty_birth - number of adult females at the onset of the annual birth season

denisty_mating - number of adult females at the onset of the annual mating season