Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)

True individual recognition (TIR), the ability to recognize conspecific individuals on the basis of identity cues, is required for the evolution of several social traits (e.g. the maintenance of dominance hierarchies). However, knowledge about the distribution and functional significance of TIR is s...

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Main Authors: Carazo, P, Font, E, Desfilis, E
Format: Journal article
Language:English
Published: 2008
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author Carazo, P
Font, E
Desfilis, E
author_facet Carazo, P
Font, E
Desfilis, E
author_sort Carazo, P
collection OXFORD
description True individual recognition (TIR), the ability to recognize conspecific individuals on the basis of identity cues, is required for the evolution of several social traits (e.g. the maintenance of dominance hierarchies). However, knowledge about the distribution and functional significance of TIR is scant in some vertebrate groups, such as reptiles. In this study we used a functional modification of a habituation-dishabituation paradigm to investigate the existence and adaptive significance of TIR in a territorial lizard (Podarcis hispanica, Lacertidae). Males discriminated between individual rivals of similar characteristics (e.g. size, weight, familiarity) solely on the basis of their scent marks. Males also remembered the spatial location of scent marks and subsequently behaved more aggressively towards rival males that consistently marked in the core than on the periphery of their experimental terrarium. Together, these results suggest that, in this species, scent marks function to identify the potential threat posed by each individual neighbour, allowing resident males to allocate their aggressive behaviour accordingly. Our findings challenge the simplistic and commonly held view that 'dear enemy' phenomena in lizards are exclusively based on familiarity asymmetries, and support an alternative threat level hypothesis in which TIR may be more important than previously acknowledged. © 2008 The Association for the Study of Animal Behaviour.
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spelling oxford-uuid:f54dc4a8-af9b-4abc-ab23-c5681035436c2022-03-27T12:26:23ZBeyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f54dc4a8-af9b-4abc-ab23-c5681035436cEnglishSymplectic Elements at Oxford2008Carazo, PFont, EDesfilis, ETrue individual recognition (TIR), the ability to recognize conspecific individuals on the basis of identity cues, is required for the evolution of several social traits (e.g. the maintenance of dominance hierarchies). However, knowledge about the distribution and functional significance of TIR is scant in some vertebrate groups, such as reptiles. In this study we used a functional modification of a habituation-dishabituation paradigm to investigate the existence and adaptive significance of TIR in a territorial lizard (Podarcis hispanica, Lacertidae). Males discriminated between individual rivals of similar characteristics (e.g. size, weight, familiarity) solely on the basis of their scent marks. Males also remembered the spatial location of scent marks and subsequently behaved more aggressively towards rival males that consistently marked in the core than on the periphery of their experimental terrarium. Together, these results suggest that, in this species, scent marks function to identify the potential threat posed by each individual neighbour, allowing resident males to allocate their aggressive behaviour accordingly. Our findings challenge the simplistic and commonly held view that 'dear enemy' phenomena in lizards are exclusively based on familiarity asymmetries, and support an alternative threat level hypothesis in which TIR may be more important than previously acknowledged. © 2008 The Association for the Study of Animal Behaviour.
spellingShingle Carazo, P
Font, E
Desfilis, E
Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)
title Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)
title_full Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)
title_fullStr Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)
title_full_unstemmed Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)
title_short Beyond 'nasty neighbours' and 'dear enemies'? Individual recognition by scent marks in a lizard (Podarcis hispanica)
title_sort beyond nasty neighbours and dear enemies individual recognition by scent marks in a lizard podarcis hispanica
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