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de La Cruz F, Pérez i de Lanuza G, Font E. Signalling on islands: the case of Lilford’s wall lizard ( Podarcis lilfordi gigliolii) from Dragonera. Biol J Linn Soc Lond 2023. [DOI: 10.1093/biolinnean/blac152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
AbstractStudies of the effects of insularity on animal signals are scarce, particularly in lizards. Here, we use Lilford’s wall lizard from Dragonera (Podarcis lilfordi gigliolii) to ask how island conditions have affected its repertoire of social signals, focusing on two visual signals shared by many Podarcis species: ultraviolet (UV)–blue-reflecting ventrolateral colour patches and visual displays. We examined whether the number or spectral characteristics of the UV–blue patches are associated with traits related to individual quality. We also used visual models to assess visual conspicuousness and to measure sexual dichromatism. We did not observe foot shakes or any other visual displays usually found in continental Podarcis. We found that none of the UV–blue patch variables covaried with morphometric variables indicative of fighting ability or body condition in males, suggesting that this coloration does not signal individual quality. We also found very little sexual dichromatism. In particular, the UV–blue patches of females seem over-expressed and more similar to those of males than those of continental Podarcis. Ancestral state reconstruction reveals that the lack of sexual dimorphism in the UV–blue patches is a derived condition for P. lilfordi gigliolii and other Podarcis living on small islands. Our results thus show a pattern of reduced social signalling in P. lilfordi gigliolii relative to mainland Podarcis, with some signals being lost or under-expressed (visual displays) and others losing their signalling function (UV–blue patches). We hypothesize that these changes are attributable to the high population density of P. lilfordi gigliolii, which discourages territorial behaviour and promotes extreme social tolerance, making most social signals unnecessary. More work will be needed to determine whether this is a common pattern in lizards inhabiting small and densely populated islands.
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Affiliation(s)
- Ferran de La Cruz
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia , APDO 22085, 46071 , Spain
- CIBIO Research Centre in Biodiversity and Genetic Resources, InBIO, Campus de Vairão, Universidade do Porto , 4485-661 , Portugal
| | - Guillem Pérez i de Lanuza
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia , APDO 22085, 46071 , Spain
| | - Enrique Font
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia , APDO 22085, 46071 , Spain
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2
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Abalos J, Pérez i de Lanuza G, Bartolomé A, Liehrmann O, Laakkonen H, Aubret F, Uller T, Carazo P, Font E. No evidence for differential sociosexual behavior and space use in the color morphs of the European common wall lizard ( Podarcis muralis). Ecol Evol 2020; 10:10986-11005. [PMID: 33144943 PMCID: PMC7593164 DOI: 10.1002/ece3.6659] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 12/18/2022] Open
Abstract
Explaining the evolutionary origin and maintenance of color polymorphisms is a major challenge in evolutionary biology. Such polymorphisms are commonly thought to reflect the existence of alternative behavioral or life-history strategies under negative frequency-dependent selection. The European common wall lizard Podarcis muralis exhibits a striking ventral color polymorphism that has been intensely studied and is often assumed to reflect alternative reproductive strategies, similar to the iconic "rock-paper-scissors" system described in the North American lizard Uta stansburiana. However, available studies so far have ignored central aspects in the behavioral ecology of this species that are crucial to assess the existence of alternative reproductive strategies. Here, we try to fill this gap by studying the social behavior, space use, and reproductive performance of lizards showing different color morphs, both in a free-ranging population from the eastern Pyrenees and in ten experimental mesocosm enclosures. In the natural population, we found no differences between morphs in site fidelity, space use, or male-female spatial overlap. Likewise, color morph was irrelevant to sociosexual behavior, space use, and reproductive success within experimental enclosures. Our results contradict the commonly held hypothesis that P. muralis morphs reflect alternative behavioral strategies, and suggest that we should instead turn our attention to alternative functional explanations.
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Affiliation(s)
- Javier Abalos
- Ethology LabInstituto Cavanilles de Biodiversidad y Biología EvolutivaUniversitat de ValènciaValènciaSpain
| | - Guillem Pérez i de Lanuza
- Ethology LabInstituto Cavanilles de Biodiversidad y Biología EvolutivaUniversitat de ValènciaValènciaSpain
- CIBIO/InBIOCentro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do PortoPortoPortugal
| | - Alicia Bartolomé
- Ethology LabInstituto Cavanilles de Biodiversidad y Biología EvolutivaUniversitat de ValènciaValènciaSpain
| | | | | | - Fabien Aubret
- SETEStation d’Ecologie Théorique et ExpérimentaleUMR5321Centre National de la Recherche ScientifiqueParisFrance
| | | | - Pau Carazo
- Ethology LabInstituto Cavanilles de Biodiversidad y Biología EvolutivaUniversitat de ValènciaValènciaSpain
| | - Enrique Font
- Ethology LabInstituto Cavanilles de Biodiversidad y Biología EvolutivaUniversitat de ValènciaValènciaSpain
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Ruiz-Monachesi MR, Valdecantos S, Lobo F, Cruz FB, Labra A. Retreat Sites Shared by Two Liolaemus Lizard Species: Exploring the Potential Role of Scents. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2020. [DOI: 10.2994/sajh-d-18-00051.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Mario R. Ruiz-Monachesi
- Instituto de Bio y Geo Ciencias del Noroeste Argentino-Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Naturales, Universidad Nacional de Salta, Salta, Argentina
| | - Soledad Valdecantos
- Instituto de Bio y Geo Ciencias del Noroeste Argentino-Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Naturales, Universidad Nacional de Salta, Salta, Argentina
| | - Fernando Lobo
- Instituto de Bio y Geo Ciencias del Noroeste Argentino-Consejo Nacional de Investigaciones Científicas y Técnicas-Facultad de Ciencias Naturales, Universidad Nacional de Salta, Salta, Argentina
| | - Félix B. Cruz
- Instituto de Investigaciones en Biodiversidad y Medioambiente-Consejo Nacional de Investigaciones Científicas y Técnicas-Bariloche, Río Negro, Argentina
| | - Antonieta Labra
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo, Norway
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Does Liolaemus lemniscatus eavesdrop on the distress calls of the sympatric weeping lizard? J ETHOL 2020. [DOI: 10.1007/s10164-020-00666-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractFor a prey, its best ticket to stay alive is to get early and accurate information on predation risk and so, escape from predation at low cost. Some prey species have evolved the ability to eavesdrop signals intended for others, which contain information on predation risk. This is the case for the vocalizations produced by prey species when interacting with predators. Although primarily studied in birds and mammals, eavesdropping on vocal signals has been recorded in some lizard species. Here, we explored whether the lizard Liolaemus lemniscatus eavesdrops on the distress calls of its sympatric species, the Weeping lizard (L. chiliensis). Individuals of the Weeping lizard respond to these calls by displaying antipredator behaviours (i.e., reduced movement), and individuals of L. lemniscatus may potentially display similar defences if they decode the information contained in these calls. Our playback experiments showed that individuals of L. lemniscatus responded to the sound stimuli (distress calls and white noise), reducing their activity, but they did not discriminate between these two stimuli, suggesting that L. lemniscatus does not eavesdrop on the distress calls of its sympatric lizard species. We discuss some hypotheses to explain the lack of eavesdropping by L. lemniscatus on the Weeping lizard distress calls.
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Ruiz-Monachesi MR, Labra A. Complex distress calls sound frightening: the case of the weeping lizard. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Proteins from femoral gland secretions of male rock lizards Iberolacerta cyreni allow self—but not individual—recognition of unfamiliar males. Behav Ecol Sociobiol 2020. [DOI: 10.1007/s00265-020-02847-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Hamilton K, Goulet CT, Johnstone CP, Chapple DG. Does geographical isolation influence group recognition and social preference in an invasive lizard? J Zool (1987) 2019. [DOI: 10.1111/jzo.12738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Katelyn Hamilton
- School of Biological Sciences Monash University Clayton Vic Australia
| | - Celine T. Goulet
- School of Biological Sciences Monash University Clayton Vic Australia
| | | | - David G. Chapple
- School of Biological Sciences Monash University Clayton Vic Australia
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Nisa Ramiro C, Rodríguez‐Ruiz G, López P, da Silva Junior PI, Trefaut Rodrigues M, Martín J. Chemosensory discrimination of male age by femalePsammodromus algiruslizards based on femoral secretions and feces. Ethology 2019. [DOI: 10.1111/eth.12934] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carolina Nisa Ramiro
- Departamento de Zoologia, Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Gonzalo Rodríguez‐Ruiz
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales CSIC Madrid Spain
| | - Pílar López
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales CSIC Madrid Spain
| | | | | | - José Martín
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales CSIC Madrid Spain
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Ruiz-Monachesi M, Paz A, Quipildor M. Hemipenes eversion behavior: a new form of communication in two Liolaemus lizards (Iguania: Liolaemidae). CAN J ZOOL 2019. [DOI: 10.1139/cjz-2018-0195] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Males of several animals have intromittent organs and may use these in a communicative context during sexual or intrasexual interactions. In some lizards, hemipenes eversion behavior have been observed, and the aim of this study is to find out whether this behavior is functionally significant under a communicative approach. Here, we investigated the eversion of hemipenes in the Light Blue Lizard (Liolaemus coeruleus Cei and Ortiz-Zapata, 1983) and in the Valley Lizard (Liolaemus quilmes Etheridge, 1993) by filming the response of male focal lizards in different experimental settings: (i) an agonistic context, i.e., with a conspecific male, (ii) a sexual context, i.e., with a conspecific female, and (iii) a control treatment, i.e., without a treatment lizard. In both species, focal lizards showed this behavior only in an agonistic context, with interspecific differences as follows. Liolaemus coeruleus has longer times until eversion and dragging of hemipenes; however, it has shorter time of eversion and exposition of the hemipenes. Liolaemus quilmes has the opposite pattern compared with L. coeruleus. These indicate that eversion of the hemipenes can act as a visual display and as a signal of aggressive behavior towards conspecific rival males. The present study offers a new behavioral perspective on the use of masculine genitalia in lizards.
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Affiliation(s)
- M.R. Ruiz-Monachesi
- IBIGEO – Instituto de Bio y Geo Ciencias – CONICET, Avenida 9 de Julio 14, Rosario de Lerma, 4405 Salta, Argentina
- IBIGEO – Instituto de Bio y Geo Ciencias – CONICET, Avenida 9 de Julio 14, Rosario de Lerma, 4405 Salta, Argentina
| | - A. Paz
- IBIGEO – Instituto de Bio y Geo Ciencias – CONICET, Avenida 9 de Julio 14, Rosario de Lerma, 4405 Salta, Argentina
- IBIGEO – Instituto de Bio y Geo Ciencias – CONICET, Avenida 9 de Julio 14, Rosario de Lerma, 4405 Salta, Argentina
| | - M. Quipildor
- IBIGEO – Instituto de Bio y Geo Ciencias – CONICET, Avenida 9 de Julio 14, Rosario de Lerma, 4405 Salta, Argentina
- IBIGEO – Instituto de Bio y Geo Ciencias – CONICET, Avenida 9 de Julio 14, Rosario de Lerma, 4405 Salta, Argentina
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10
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First experimental evidence that proteins from femoral glands convey identity-related information in a lizard. Acta Ethol 2019. [DOI: 10.1007/s10211-018-00307-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Londoño C, Bartolomé A, Carazo P, Font E. Chemosensory enrichment as a simple and effective way to improve the welfare of captive lizards. Ethology 2018. [DOI: 10.1111/eth.12800] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claudia Londoño
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology; University of Valencia; Valencia Spain
| | - Alicia Bartolomé
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology; University of Valencia; Valencia Spain
| | - Pau Carazo
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology; University of Valencia; Valencia Spain
| | - Enrique Font
- Ethology Lab, Cavanilles Institute of Biodiversity and Evolutionary Biology; University of Valencia; Valencia Spain
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12
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MacGregor HEA, Lewandowsky RAM, d'Ettorre P, Leroy C, Davies NW, While GM, Uller T. Chemical communication, sexual selection, and introgression in wall lizards. Evolution 2017; 71:2327-2343. [DOI: 10.1111/evo.13317] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Hannah E. A. MacGregor
- School of Biological Sciences; University of Tasmania; Hobart Tasmania 7001 Australia
- Department of Zoology, Edward Grey Institute; University of Oxford; Oxford OX1 3PS United Kingdom
| | - Rachel A. M. Lewandowsky
- School of Biological Sciences; University of Tasmania; Hobart Tasmania 7001 Australia
- Department of Zoology, Edward Grey Institute; University of Oxford; Oxford OX1 3PS United Kingdom
| | - Patrizia d'Ettorre
- Laboratory of Experimental and Comparative Ethology; University of Paris 13; Sorbonne Paris Cité 93430 Villetaneuse Paris France
| | - Chloé Leroy
- Laboratory of Experimental and Comparative Ethology; University of Paris 13; Sorbonne Paris Cité 93430 Villetaneuse Paris France
| | - Noel W. Davies
- Central Science Laboratory; University of Tasmania; Hobart, Tasmania 7001 Australia
| | - Geoffrey M. While
- School of Biological Sciences; University of Tasmania; Hobart Tasmania 7001 Australia
- Department of Zoology, Edward Grey Institute; University of Oxford; Oxford OX1 3PS United Kingdom
| | - Tobias Uller
- Department of Zoology, Edward Grey Institute; University of Oxford; Oxford OX1 3PS United Kingdom
- Department of Biology; Lund University; Sölvegatan 37 223 62 Lund Sweden
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13
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Labra A, Reyes-Olivares C, Weymann M. Asymmetric Response to Heterotypic Distress Calls in the LizardLiolaemus chiliensis. Ethology 2016. [DOI: 10.1111/eth.12522] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antonieta Labra
- Instituto de Ciencias Biomédicas; Facultad de Medicina; Universidad de Chile; Casilla 70005, Correo 7, Santiago Chile
- Centre for Ecological and Evolutionary Synthesis (CEES); Department of Bioscience; University of Oslo; P.O.Box 1066 Blinder, N-0316, Oslo Norway
| | - Claudio Reyes-Olivares
- Instituto de Ciencias Biomédicas; Facultad de Medicina; Universidad de Chile; Casilla 70005, Correo 7, Santiago Chile
| | - Michael Weymann
- Instituto de Ciencias Biomédicas; Facultad de Medicina; Universidad de Chile; Casilla 70005, Correo 7, Santiago Chile
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Chemical recognition of conspecifics in a neotropical lizard, Liolaemus pacha (Iguania: Liolaemidae): relation to visual displays, season and sex. J ETHOL 2016. [DOI: 10.1007/s10164-016-0479-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Hoss SK, Deutschman DH, Booth W, Clark RW. Post-birth separation affects the affiliative behaviour of kin in a pitviper with maternal attendance. Biol J Linn Soc Lond 2015. [DOI: 10.1111/bij.12604] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shannon K. Hoss
- Department of Biology; San Diego State University; 5500 Campanile Drive San Diego CA 92182 USA
| | - Douglas H. Deutschman
- Department of Biology; San Diego State University; 5500 Campanile Drive San Diego CA 92182 USA
| | - Warren Booth
- Department of Biological Sciences; The University of Tulsa; 315 Oliphant Hall Tulsa OK 74104 USA
- The Copperhead Institute; PO Box 6755 Spartanburg SC 29304 USA
| | - Rulon W. Clark
- Department of Biology; San Diego State University; 5500 Campanile Drive San Diego CA 92182 USA
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16
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Baird TA, McGee AA, York JR. Responses to Femoral Gland Secretions by Visually Adept Male and Female Collared Lizards. Ethology 2015. [DOI: 10.1111/eth.12365] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Troy A. Baird
- Department of Biology; University of Central Oklahoma; Edmond OK USA
| | - Abigail A. McGee
- Department of Biology; University of Central Oklahoma; Edmond OK USA
| | - Joshua R. York
- Department of Biology; University of Oklahoma; Norman OK USA
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17
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Ballen C, Shine R, Olsson M. Effects of early social isolation on the behaviour and performance of juvenile lizards, Chamaeleo calyptratus. Anim Behav 2014. [DOI: 10.1016/j.anbehav.2013.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Affiliation(s)
- Misque Hoare
- Instituto de Ciencias Biomédicas; Facultad de Medicina; Universidad de Chile; Santiago; Chile
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López P, Martín J. Male Iberian rock lizards may reduce the costs of fighting by scent matching of the resource holders. Behav Ecol Sociobiol 2011. [DOI: 10.1007/s00265-011-1198-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Beyond ‘nasty neighbours’ and ‘dear enemies’? Individual recognition by scent marks in a lizard (Podarcis hispanica). Anim Behav 2008. [DOI: 10.1016/j.anbehav.2008.08.018] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sampedro C, Font E, Desfilis E. Size variation and cell proliferation in chemosensory brain areas of a lizard (Podarcis hispanica): effects of sex and season. Eur J Neurosci 2008; 28:87-98. [PMID: 18662337 DOI: 10.1111/j.1460-9568.2008.06287.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many lizards rely on chemoreception for crucial aspects of their biology, including exploration, prey and predator detection, and intraspecific communication. Here we investigate sex and seasonal variation in size and proliferative activity in chemosensory areas of the lizard brain. We captured adult Iberian wall lizards (Podarcis hispanica) of either sex in the breeding (April) and non-breeding (November) season, injected them with 5-bromo-2'-deoxyuridine (BrdU) and killed them 3 weeks later. We removed the brains, measured the length of the olfactory bulbs, and counted BrdU-labelled cells in the main and accessory olfactory bulbs (MOB, AOB), lateral cortex (LC) and nucleus sphericus (NS). Our results show that, relative to body size, males have larger MOBs and AOBs than females; however, relative to brain size, males have larger AOBs, but not larger MOBs than females. Additionally, males produce more new cells than females in the olfactory bulbs, LC and NS. We failed to detect significant seasonal changes or sex x season interaction in size or proliferative activity in these areas. Sex differences in the addition of newly generated cells--mainly neurons--may be partly responsible for the size differences in chemosensory brain areas. The presence of sexual dimorphism in AOB is expected given the available behavioural evidence, which suggests that males of P. hispanica are more responsive than females to socially relevant chemical stimuli. This is the first demonstration of sexual dimorphism in size and proliferative activity in chemosensory areas of a non-mammalian species.
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Affiliation(s)
- Carlos Sampedro
- Unidad de Etología, Instituto Cavanilles de Biodiversidad y Biología Evolutiva, Universidad de Valencia, Paterna, Spain.
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23
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Discrimination of conspecific faecal chemicals and spatial decisions in juvenile Iberian rock lizards (Lacerta monticola). Acta Ethol 2008. [DOI: 10.1007/s10211-007-0038-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Chemosensory assessment of rival competitive ability and scent-mark function in a lizard, Podarcis hispanica. Anim Behav 2007. [DOI: 10.1016/j.anbehav.2007.02.011] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Van Dyk DA, Evans CS. Familiar–unfamiliar discrimination based on visual cues in the Jacky dragon, Amphibolurus muricatus. Anim Behav 2007. [DOI: 10.1016/j.anbehav.2006.06.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Barbosa D, Font E, Desfilis E, Carretero MA. Chemically Mediated Species Recognition in Closely Related Podarcis Wall Lizards. J Chem Ecol 2006; 32:1587-98. [PMID: 16718555 DOI: 10.1007/s10886-006-9072-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2005] [Revised: 01/30/2006] [Accepted: 02/17/2006] [Indexed: 10/24/2022]
Abstract
In many animals, chemical signals play an important role in species recognition and may contribute to reproductive isolation and speciation. The Iberian lizards of the genus Podarcis, with up to nine currently recognized lineages that are often sympatric, are highly chemosensory and provide an excellent model for the study of chemically mediated species recognition in closely related taxa. In this study, we tested the ability of male and female lizards of two sister species with widely overlapping distribution ranges (Podarcis bocagei and P. hispanica type 1) to discriminate between conspecific and heterospecific mates by using only substrate-borne chemical cues. We scored the number of tongue flicks directed at the paper substrate by each individual in a terrarium previously occupied by a conspecific or a heterospecific lizard of the opposite sex. Results show that males of P. bocagei and P. hispanica type 1 are capable of discriminating chemically between conspecifics and heterospecifics of the opposite sex, but females are not. These results suggest that differences in female, but not male, chemical cues may underlie species recognition and contribute to reproductive isolation in these species. The apparent inability of females to discriminate conspecific from heterospecific males, which is not because of reduced baseline exploration rates, is discussed in the context of sexual selection theory and species discrimination.
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Affiliation(s)
- Diana Barbosa
- Instituto Cavanilles de Biodiversidad y Biología Evolutiva, Universidad de Valencia, Spain.
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