Citation

Testard C, Shergold C, Acevedo-Ithier A, Hart J, Bernau A, Negron-Del Valle JE, Phillips D, Watowich MM, Sanguinetti-Scheck JI, Montague MJ, Snyder-Mackler N, Higham JP, Platt ML, Brent LJN. Science 2024; 384(6702): 1330-1335.

Copyright

(Copyright © 2024, American Association for the Advancement of Science)

DOI

10.1126/science.adk0606

PMID

38900867

Abstract

Extreme weather events radically alter ecosystems. When ecological damage persists, selective pressures on individuals can change, leading to phenotypic adjustments. For group-living animals, social relationships may be a mechanism enabling adaptation to ecosystem disturbance. Yet whether such events alter selection on sociality and whether group-living animals can, as a result, adaptively change their social relationships remain untested. We leveraged 10 years of data collected on rhesus macaques before and after a category 4 hurricane caused persistent deforestation, exacerbating monkeys' exposure to intense heat. In response, macaques demonstrated persistently increased tolerance and decreased aggression toward other monkeys, facilitating access to scarce shade critical for thermoregulation. Social tolerance predicted individual survival after the hurricane, but not before it, revealing a shift in the adaptive function of sociality.

Language: en

Keywords

Female; Male; Animals; *Social Behavior; Ecosystem; *Aggression; *Cyclonic Storms; *Macaca mulatta