Abstract
The ability to distinguish between familiar and unfamiliar conspecifics is important for many animals, especially territorial species since it allows them to avoid unnecessary interactions with individuals that pose little threat. There are very few studies, however, that identify the proximate cues that facilitate such recognition in visual systems. Here, we show that in tawny dragons (Ctenophorus decresii), males can recognize familiar and unfamiliar conspecific males based on morphological features alone, without the aid of chemical or behavioural cues. We further show that it is the colour pattern of the throat patches (gular) that facilitates this recognition.
References
Aragón P, López P, Martín J (2003) Differential avoidance responses to chemical cues from familiar and unfamiliar conspecifics by male Iberian rock lizards (Lacerta monticola). J Herpetol 37:583–585
Carazo P, Font E, Desfilis E (2008) Beyond ‘nasty neighbours’ and ‘dear enemies’? Individual recognition by scent marks in a lizard (Podarcis hispanica). Anim Behav 76:1953–1963
Detto T, Backwell PRY, Hemmi JM, Zeil J (2006) Visually mediated species and neighbour recognition in fiddler crabs (Uca mjoebergi and Uca capricornis). Proc Roy Soc B 273:1661–1666
Fayed SA, Jennions MD, Backwell PRY (2008) What factors contribute to an ownership advantage? Biol Lett 4:143–145
Gibbons JRH (1977) Comparative ecology and behaviour of lizards of the Amphibolurus decresii species complex. PhD Thesis, University of Adelaide, Australia.
Gibbons JRH, Lillywhite HB (1981) Ecological segregation, color matching, and speciation in lizards of the Amphibolurus decresii species complex (Lacertilia: Agamidae). Ecology 62:1573–1584
Husak JF, Fox SF (2003) Adult male collared lizards, Crotaphytus collaris, increase aggression towards displaced neighbours. Anim Behav 65:391–396
Jackson WM (1991) Why do winners keep winning? Behav Ecol Sociobiol 28:271–276
Jansson N, Uller T, Olsson M (2005) Female dragons, Ctenophorus pictus, do not prefer scent from unrelated males. Aust J Zool 53:279–282
McLean CA, Moussalli A, Stuart-Fox D (2010) The predation cost of female resistance. Behav Ecol 21:861–867
Osborne L (2005a) Rival recognition in the territorial tawny dragon (Ctenophorus decresii). Acta Ethol 8:45–50
Osborne L (2005b) Information content of male agonistic displays in the territorial tawny dragon (Ctenophorus decresii). J Ethol 23:189–197
Osborne L, Umbers KDL, Keogh JS. (2012) The effects of perch height, time in residence and distance from opponent on aggressive display in male lizards. Acta Ethol (in press)
Parr LA, Winslow JT, Hopkins WD, De Waal FBM (2000) Recognizing facial cues: individual discrimination by chimpanzees (Pan troglodytes) and rhesus monkeys (Macaca mulatta). J Comp Psychol 114:47–60
Phillips JA (1995) Does cadence of Iguana iguana displays facilitate individual recognition? Behav Ecol Sociobiol 37:337–342
Stuart-Fox D, Johnston GR (2005) Experience overrides colour in lizard contests. Behaviour 142:329–350
Stuart-Fox D, Moussalli A, Marshall NJ, Owens IPF (2003) Conspicuous males suffer higher predation risk: visual modeling and experimental evidence from lizards. Anim Behav 66:541–550
Stuart-Fox DS, Moussalli A, Johnston GR, Owens IPF (2004) Evolution of color variation in dragon lizards: quantitative tests of the role of crypsis and local adaptation. Evolution 58:1549–1559
Stuart-Fox D, Moussalli A, Whiting MJ (2007) Natural selection on social signals: signal efficacy and the evolution of chameleon display coloration. Am Nat 170:916–930
Temeles EJ (1994) The role of neighbours in territorial systems: when are they ‘dear enemies’? Anim Behav 47:339–350
Thresher RE (1979) The role of individual recognintion in the territorial behaviour of the threespot damselfish, Eupomacentrus planifrons. Mar Behav Physiol 6:83–93
Tibbetts EA, Dale J (2007) Individual recognition: it is good to be different. Trends Ecol Evol 22:529–537
Umbers KDL, Osborne L, Keogh JS. (2012) The effects of residency and body size on contest initation and outcome in the territorial dragon (Ctenophorus decressi). PLoS ONE (in press)
Vannoni E, McElligott AG (2009) Fallow bucks get hoarse: vocal fatigue as a possible signal to conspecifics. Anim Behav 78:3–10
Whiting MJ, Webb JK, Keogh JS (2009) Flat lizard female mimics use sexual deception in visual but not chemical signals. Proc Roy Soc B 276:1585–1591
Acknowledgments
We thank the Animal Experimentation Ethics Committee of the ANU (Protocol No. F.BTZ.37.01); SA National Parks and Wildlife Services (permit M24494) and Environment ACT (permit K8164).
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by: Sven Thatje
Rights and permissions
About this article
Cite this article
Osborne, L., Umbers, K.D.L., Backwell, P.R.Y. et al. Male tawny dragons use throat patterns to recognize rivals. Naturwissenschaften 99, 869–872 (2012). https://doi.org/10.1007/s00114-012-0968-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00114-012-0968-3