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Commentary on the Factors Governing the Rate of Tail Loss in Island Lizards
in Israel Journal of Ecology and EvolutionMuseum für Tierkunde, Senckenberg Dresden, A. B. Meyer Building, Königsbrücker Landstrasse 159, 01109 Dresden, Germany
Search for other papers by Yehudah L. Werner in
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Opinions differ whether tail loss in lizards is mainly caused by predators or by intra-specific fighting. Recently this dilemma was investigated through a comparison of lizard tail loss rates between mainland populations in Greece and those on nearby islands harboring fewer predators. The higher tail loss rate on the islands was interpreted as due to the predation-free denser lizard populations having more intra-specific fighting (Itescu et al. 2017, Journal of Animal Ecology 86: 66–74). However, that analysis failed to exclude an alternative hypothesis which I propose and support with well documented circumstantial evidence: The lizards analyzed were Hemidactylus turcicus and Mediodactylus kotschyi (Gekkonidae), both relatively long-lived. On the predator-poor islands they could live longer due to the few predators and thus accumulate the low rate of tail loss. Moreover, both on the mainland and on the islands the tail loss rates are higher in M. kotschyi than in H. turcicus, although life spans are of similar order of magnitude, possibly longer in H. turcicus. But the latter is active at night whereas M. kotschyi is active also in daytime, exposed to more predators during more time. Thus also this inter-specific difference accords with the alternative hypothesis. The two processes are not mutually exclusive and both should be taken into account as potentially responsible for the rate of tail loss in lizards.
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Arnold E.N. (1984). Evolutionary aspects of tail shedding in lizards and their relatives. J. nat. Hist. 18: 127–169.
-
Arnold E.N. (1988). Caudal autotomy as a defense. In: Gans C. , Huey R.B. , eds, Biology of the Reptilia, Vol. 16, New York: Alan Liss, pp. 236–273.
-
Bauer A.M. (2013). Geckos, the Animal Answer Guide. Baltimore: Johns Hopkins University.
-
Bustard H.R. , Hughes R.D. (1966). Gekkonid lizards: average ages derived from tail-loss data, Science 153: 1670–1671.
-
Castanet J. , Smirina E.M. (1990). Introduction to the skeletochronological method in amphibians and reptiles. Ann. Sci. Nat. Zool. 11: 191–196.
-
Cooper W.E. Jr. , Dimopoulos I. , Pafilis P. (2015). Sex, age, and population density affect aggressive behaviors in island lizards promoting cannibalism. Ethology 120: 1–10.
-
Flesch E. , Motro U. , Werner Y.L. (2015). The systematics challenge of the house gecko (Hemidactylus turcicus) in Israel. Zool. Soc. Israel, Mikhmoret, 13 December 2015. (Poster.)
-
Itescu Y. , Schwarz R. , Meiri S. , Pafilis P. (2017). Intraspecific competition, not predation, drives lizard tail loss on islands. J. Anim. Ecol. 86: 66–74.
-
Linnaeus C. (1758). Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Ed. 10, reformata. Holmiæ: Laurentii Salvii.
-
Moravec J. , Kratochvíl L. , Amr Z.S. , Jandzik D. , Šmíd J. , Gvoždík V. (2011). High genetic differentiation within the Hemidactylus turcicus complex (Reptilia: Gekkonidae) in the Levant, with comments on the phylogeny and systematics of the genus. Zootaxa 2894: 21–38.
-
Munch S.B. , Salina S. (2009). Latitudinal variation in lifespan within species is explained by the metabolic theory of ecology . Proc. Nat. Acad. Sci. 106: 13860–13864.
-
Pafilis P. , Meiri S. , Foufopoulos J. , Valakos E.D. (2009). Intraspecific competition and high food availability are associated with insular gigantism in a lizard. Naturwiss. 96: 1107–1113.
-
Scharf I. , Feldman A. , Novosolov M. , Pincheira-Donoso D. , Das I. , Bohm M. , Uetz P. , Torres-Carvajal O. , Bauer A. , Roll U. , Meiri S. (2015). Late bloomers and baby boomers: ecological drivers of longevity in squamates and the tuatara. Global Ecol. Biogeogr. 24: 396–405.
-
Seligmann H. , Beiles A. , Werner Y.L. (1996). Tail loss frequencies of lizards and predator specialization, In: Preservation of our world in the wake of change (Proceedings of the 6th International Conference, Israel Society for Ecology and Environmental Quality Science vol. 6B), pp. 520–522, Steinberger Y. , Ed, ISEEQS, Jerusalem.
-
Steindachner F. (1870). Herpetologische Notizen (Il). Reptilien gesammelt während einer Reise in Sengambien. Sber. K. Akad. Wiss. Wien, 62: 326–348.
-
Üzüm N. , Ilgaz Ç. , Kumlutaş Y. , Gümüş Ç. , Avci A. (2014). The body size, age structure, and growth of Bosc’s fringe-toed lizard, Acanthodactylus boskianus (Daudin, 1802). Turk. J. Zool. 38: 383–388.
-
Werner Y.L. (1965). The comparative caudal osteology of some gekkonid lizards from Israel. Isr. J. Zool. 14: 286–301.
-
Werner Y.L. (1966). Cyrtodactylus kotschyi orientalis in Israel. Lacerta 24: 94–96.
-
Werner Y.L. (1967). Regeneration of the caudal axial skeleton in a gekkonid lizard (Hemidactylus) with particular reference to the ‘latent’ period. Acta Zool. (Stockholm) 48: 103–125.
-
Werner Y.L. (1968). Regeneration frequencies in geckos of two ecological types (Reptilia:Gekkonidae). Vie Milieu, C 19: 199–221.
-
Werner Y.L. (1993). The paradoxical tree gecko of Israel. Dactylus 2: 29–42.
-
Werner Y.L. (2008). Tales of tails. Gekko 5(2): 6–18.
-
Werner Y.L. (2016). Reptile Life in the Land of Israel, with Comments on Adjacent Regions. Frankfurt a.M.: Chimaira.
-
Werner Y.L. , Frankenberg E. , Volokita M. , Harari R. (1993). Longevity of geckos (Reptilia: Lacertilia: Gekkonoidea) in captivity: an analytical review incorporating new data. Isr. J. Zool. 39: 105–124.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 349 | 87 | 12 |
| Gesamttextansichten | 15 | 0 | 0 |
| PDF-Downloads | 22 | 1 | 1 |
Commentary on the Factors Governing the Rate of Tail Loss in Island Lizards
in Israel Journal of Ecology and EvolutionMuseum für Tierkunde, Senckenberg Dresden, A. B. Meyer Building, Königsbrücker Landstrasse 159, 01109 Dresden, Germany
Search for other papers by Yehudah L. Werner in
Current site
Google Scholar
PubMed
Opinions differ whether tail loss in lizards is mainly caused by predators or by intra-specific fighting. Recently this dilemma was investigated through a comparison of lizard tail loss rates between mainland populations in Greece and those on nearby islands harboring fewer predators. The higher tail loss rate on the islands was interpreted as due to the predation-free denser lizard populations having more intra-specific fighting (Itescu et al. 2017, Journal of Animal Ecology 86: 66–74). However, that analysis failed to exclude an alternative hypothesis which I propose and support with well documented circumstantial evidence: The lizards analyzed were Hemidactylus turcicus and Mediodactylus kotschyi (Gekkonidae), both relatively long-lived. On the predator-poor islands they could live longer due to the few predators and thus accumulate the low rate of tail loss. Moreover, both on the mainland and on the islands the tail loss rates are higher in M. kotschyi than in H. turcicus, although life spans are of similar order of magnitude, possibly longer in H. turcicus. But the latter is active at night whereas M. kotschyi is active also in daytime, exposed to more predators during more time. Thus also this inter-specific difference accords with the alternative hypothesis. The two processes are not mutually exclusive and both should be taken into account as potentially responsible for the rate of tail loss in lizards.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 349 | 87 | 12 |
| Gesamttextansichten | 15 | 0 | 0 |
| PDF-Downloads | 22 | 1 | 1 |
