Data from: Composition of a chemical signalling trait varies with phylogeny and precipitation across an Australian lizard radiation

Stephen Zozaya, Luisa Teasdale, Craig Moritz, Megan Higgie & Conrad Hoskin
The environment presents challenges to the transmission and detection of animal signalling systems, resulting in selective pressures that can drive signal divergence among populations in disparate environments. For chemical signals, climate is a potentially important selective force because factors such as temperature and moisture influence the persistence and detection of chemicals. We investigated an Australian lizard radiation (Heteronotia) to explore relationships between a sexually dimorphic chemical signalling trait (epidermal pore secretions) and two key climate...
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