10.5061/DRYAD.8265
Runemark, Anna
Lund University
Gabirot, Marianne
Museo Nacional de Ciencias Naturales
Svensson, Erik I
Lund University
Data from: Population divergence in chemical signals and the potential for
premating isolation between islet- and mainland populations of the Skyros
wall lizard, (Podarcis gaigeae)
Dryad
dataset
2011
Podarcis gaigeae
2011-01-06T14:02:16Z
2011-01-06T14:02:16Z
en
https://doi.org/10.1111/j.1420-9101.2010.02214.x
212879 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
When sexually selected traits diverge due to different local selective
environments premating isolation might arise as a correlated response.
However, sexually selected traits might also diverge by stochastic forces.
Here, we show that odour-based mate preferences and scent composition have
diverged between islet- and mainland populations of Skyros wall lizard,
Podarcis gaigeae. We quantified the degree of scent-mediated premating
isolation between populations. Islet lizards preferred scent from islet
lizards, whereas the mainland populations were less discriminatory. The
pheromone compositions differed more between islets than between islet-
and mainland populations, and did not differ significantly between
mainland populations. There was a tendency for population divergence in
pheromones to be positively correlated with neutral genetic divergence.
This might indicate a role for genetic drift in evolutionary change in
these signals and partial decoupling between signals and preferences. Our
results suggest that chemical signals and associated mate preferences can
diverge through stochastic and selective forces and influence premating
isolation.
Chemical interest trial data Runemark et al.Pheromone composition data
Runemark et al.
Greece
The island of Skyros