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Does reproductive state affect a lizard's behavior toward predator chemical cues?

Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikelOnderzoekpeer review

Auteurs

  • S. J Downes
  • Dirk Bauwens

Details

Originele taal-2Engels
TijdschriftBehavioral Ecology and Sociobiology
Volume52
Tijschrift nummer6
Pagina's (van-tot)444-450
Aantal pagina's7
StatusGepubliceerd - 2002

Bibliografische nota

Publication Authorstring : Downes, S. J.; Bauwens, D.
Publication RefStringPartII : <i>Behavioral Ecology and Sociobiology 52(6)</i>: 444-450

Abstract

We examined how reproductive state affected shifts in behavior of adult female Podarcis sicula toward chemical cues from a natural snake predator (Coronella austriaca). The oviparous P. sicula lizards do not experience a major physical burden during reproduction, but gravid females substantially increase duration of basking. Therefore, gravid lizards are likely to experience a greater risk of mortality because they are exposed to predators for longer periods. Both gravid and non-gravid females shifted patterns of locomotion when confronted with snake chemical cues, but the change was notably larger when females were non-gravid. When non-gravid, lizards responded to predator scent by increasing the number of stand-ups and starts, while such a response was not observed when females were gravid. By contrast, gravid lizards clearly reduced the time spent basking in the presence of predator scent, whereas no change in basking behavior was observed when females were non-gravid. Thus, females exhibit differential behavioral responses to predator scents that is dependent on reproductive state.

Thematische lijst

EWI Biomedische wetenschappen

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Documenten

Documenten

  • Downes_Bauwens_2002_BehavEcolSociobiol

    !!Final published version, 157 KB, PDF-document

DOI

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