Adaptive developmental plasticity in snakes

Fabien Aubret*, Richard Shine, Xavier Bonnet

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

109 Citations (Scopus)


The morphology of organisms is generally well matched to their environment, presumably because expression of their genes is tailored either at the population or the individual level to suit local conditions: for example, snake populations that persistently encounter large prey may accumulate gene mutations that specify a large head size, or head growth may be increased in individual snakes to meet local demands (adaptive developmental plasticity). Here we test the relative contributions of genetics and environment to the jaw sizes of two tiger snake populations: one that consumes small prey on the mainland, and an island population that relies on larger prey and has a larger jaw size. Although the idea of adaptive plasticity in response to environmental pressures is controversial, we find that both factors influence the difference in jaw size between the two populations, and the influence of developmental plasticity is greater in the island population.
Original languageEnglish
Pages (from-to)261-262
Number of pages2
Issue number7006
Publication statusPublished - 2004
Externally publishedYes


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