Thermal tolerance may cause sexual segregation in sexually dimorphic species living in hot environments

Juan C. Alonso, Iván Salgado and Carlos Palacín

Behavioral Ecology, 2016, vol. 27, issue 3, 717-724

Abstract: Lay Summary Large body size can be a problem when it comes to dissipating body heat in summer. Thus, in hot environments, males and females of species with marked sexual differences in size may be forced to live segregated due to their different sun tolerance. We analyze summer sexual segregation in the great bustard, the most sexually size-dimorphic among birds. Males of this species are much more dependent on shade provided by the vegetation than females.

Keywords: behavioral thermoregulation; great bustard; heat stress; sexual segregation; sexual size dimorphism; weather sensitivity hypothesis (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (1)

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