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Review
. 2021 Nov;30(6):399-420.
doi: 10.1002/evan.21924. Epub 2021 Sep 20.

Chimpanzees (Pan troglodytes) in savanna landscapes

Affiliations
Review

Chimpanzees (Pan troglodytes) in savanna landscapes

Stacy Lindshield et al. Evol Anthropol. 2021 Nov.

Abstract

Chimpanzees (Pan troglodytes) are the only great apes that inhabit hot, dry, and open savannas. We review the environmental pressures of savannas on chimpanzees, such as food and water scarcity, and the evidence for chimpanzees' behavioral responses to these landscapes. In our analysis, savannas were generally associated with low chimpanzee population densities and large home ranges. In addition, thermoregulatory behaviors that likely reduce hyperthermia risk, such as cave use, were frequently observed in the hottest and driest savanna landscapes. We hypothesize that such responses are evidence of a "savanna landscape effect" in chimpanzees and offer pathways for future research to understand its evolutionary processes and mechanisms. We conclude by discussing the significance of research on savanna chimpanzees to modeling the evolution of early hominin traits and informing conservation programs for these endangered apes.

Keywords: Pan troglodytes; behavioral flexibility; dry environments; mosaic vegetation; primates; seasonality.

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References

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