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Rhesus macaques compensate for reproductive delay following ecological adversity early in life
  • Logan Luevano,
  • Chris Sutherland,
  • Raisa Hernández-Pacheco
Logan Luevano
California State University Long Beach

Corresponding Author:[email protected]

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Chris Sutherland
University of St Andrews
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Raisa Hernández-Pacheco
California State University Long Beach
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Adversity early in life can shape the reproductive potential of individuals through negative effects on health and lifespan. However, long-lived populations with multiple reproductive events may present alternative life history strategies to optimize reproductive schedules and compensate for shorter lifespans when experiencing adversities early in life. Here, we quantify the effects of major hurricanes and density-dependence as sources of early-life ecological adversity on the mean age-specific fertility, reproductive pace, and lifetime reproductive success (LRS) of Cayo Santiago rhesus macaque females, and explored demographic mechanisms for reproductive schedule optimization later in life. Females experiencing major hurricanes early in life exhibit a delayed reproductive debut, but maintain inter-birth intervals and show a higher mean fertility during prime reproductive ages relative to females experiencing no hurricanes. Increasing density at birth is associated to a decrease in mean fertility and LRS. When combined, our study reveals that early-life ecological adversities 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, the long-lived Cayo Santiago population presents a novel reproductive strategy where females who experience major natural disasters early in life ultimately overcome their initial reproductive penalty with no overall negative fitness outcomes. Such strategy suggests that investing more energy into development and maintenance at younger ages allows long-lived females experiencing early-life ecological adversity to reproduce at a mean rate equivalent to that of a typical female cohort later in life.
01 Aug 2021Submitted to Ecology and Evolution
02 Aug 2021Submission Checks Completed
02 Aug 2021Assigned to Editor
02 Aug 2021Reviewer(s) Assigned
19 Aug 2021Review(s) Completed, Editorial Evaluation Pending
23 Aug 2021Editorial Decision: Revise Minor
07 Oct 20211st Revision Received
07 Oct 2021Submission Checks Completed
07 Oct 2021Assigned to Editor
07 Oct 2021Review(s) Completed, Editorial Evaluation Pending
07 Oct 2021Reviewer(s) Assigned
02 Nov 2021Editorial Decision: Revise Minor
19 Nov 20212nd Revision Received
20 Nov 2021Submission Checks Completed
20 Nov 2021Assigned to Editor
20 Nov 2021Review(s) Completed, Editorial Evaluation Pending
30 Nov 2021Editorial Decision: Accept
Jan 2022Published in Ecology and Evolution volume 12 issue 1. 10.1002/ece3.8456