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Fight versus flight: the interaction of temperature and body size determines antipredator behaviour in tegu lizards

dc.contributor.authorde Barros, Fabio Cury
dc.contributor.authorde Carvalho, Jose Eduardo
dc.contributor.authorAbe, Augusto Shinya [UNESP]
dc.contributor.authorKohlsdor, Tiana
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:00:03Z
dc.date.available2014-05-20T14:00:03Z
dc.date.issued2010-01-01
dc.description.abstractEctotherm antipredator behaviour might be strongly affected both by body temperature and size: when environmental temperatures do not favour maximal locomotor performance, large individuals may confront predators, whereas small animals may flee, simply because they have no other option. However, integration of body size and temperature effects is rarely approached in the study of antipredator behaviour in vertebrate ectotherms. In the present study we investigated whether temperature affects antipredator responses of tegu lizards, Tupinambis merianae, with distinct body sizes, testing the hypothesis that small tegus (juveniles) run away from predators regardless of the environmental temperature, because defensive aggression may not be an effective predator deterrent, whereas adults, which are larger, use aggressive defence at low temperatures, when running performance might be suboptimal. We recorded responses of juvenile (small) and adult (large) tegu lizards to a simulated predatory attack at five environmental temperatures in the laboratory. Most differences between the two size classes were observed at low temperatures: large tegus were more aggressive overall than were small tegus at all temperatures tested, but at lower temperatures, the small lizards often used escape responses whereas the large ones either adopted a defensive posture or remained inactive. These results provide strong evidence that body size and temperature affect the antipredator responses of vertebrate ectotherms. We discuss the complex and intricate network of evolutionary and ecological parameters that are likely to be involved in the evolution of such interactions. (C) 2009 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv São Paulo, Dept Biol, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Ribeirao Preto, SP, Brazil
dc.description.affiliationUniv Fed São Paulo, Dept Ciencias Biol, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Zool, IB Rio Claro, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Zool, IB Rio Claro, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent83-88
dc.identifierhttp://dx.doi.org/10.1016/j.anbehav.2009.10.006
dc.identifier.citationAnimal Behaviour. London: Academic Press Ltd- Elsevier B.V. Ltd, v. 79, n. 1, p. 83-88, 2010.
dc.identifier.doi10.1016/j.anbehav.2009.10.006
dc.identifier.issn0003-3472
dc.identifier.lattes8776757457144680
dc.identifier.urihttp://hdl.handle.net/11449/21236
dc.identifier.wosWOS:000273027500012
dc.language.isoeng
dc.publisherAcademic Press Ltd Elsevier B.V. Ltd
dc.relation.ispartofAnimal Behaviour
dc.relation.ispartofjcr3.067
dc.relation.ispartofsjr1,580
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectaggressive responseen
dc.subjectantipredator behaviouren
dc.subjectbody sizeen
dc.subjectescape responseen
dc.subjecttegu lizarden
dc.subjecttemperatureen
dc.subjectTupinambis merianaeen
dc.titleFight versus flight: the interaction of temperature and body size determines antipredator behaviour in tegu lizardsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderAcademic Press Ltd- Elsevier B.V. Ltd
dspace.entity.typePublication
unesp.author.lattes8776757457144680[3]
unesp.author.orcid0000-0002-6765-8726[3]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Rio Claropt
unesp.departmentZoologia - IBpt

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