Population Size and Age Structure of Metamorphic and Pedomorphic Forms of Ommatotriton ophryticus (Berthold, 1846) in the Northwestern Black Sea Region of Turkey

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dc.contributor.authorBaskale, Eyup
dc.contributor.authorYildirim, Elif
dc.contributor.authorCevik, Ethem
dc.contributor.authorKaya, Ugur
dc.date.accessioned2019-10-27T21:52:02Z
dc.date.available2019-10-27T21:52:02Z
dc.date.issued2013
dc.departmentEge Üniversitesien_US
dc.description.abstractAmphibians are in decline in many parts of the world. Understanding the population dynamics of amphibian species is an important prerequisite for developing effective conservation strategies. We used capture mark recapture and skeletochronological techniques to investigate population size, body size, and age structure of metamorphic and pedomorphic forms of Ommatotriton ophryticus between 2006 and 2009 in the northwestern Black Sea region of Turkey. Our findings showed that time-specific survival rate, constant capture probability, no temporary emigration, and time-specific population size were the most appropriate models for this population. According to the best model (Model 6), population size of metamorphic forms of O. ophryticus was estimated as 517 (95% confidence interval [CI] = 338-851) adults in 2006, 338 (95% CI = 282-421) adults in 2008, and 527 (95% CI = 443-646) adults in 2009. Average annual capture probability was estimated at 0.21, although average survival rate across years was 0.35. The mean body size and age structure of the pedomorphs and metamorphs was significantly different for both sexes. Also, body size of both forms of O. ophryticus showed positive significant correlations with age. In addition to this, both forms shared a common allometric slope of the snout vent lengths vs. age, and older individuals had larger bodies. Moreover, age at first reproduction and longevity exhibited great differences between forms whereas the median age was 4 yr for each newt category, except for metamorphosed males, in which it was 5 yr. These results indicate that pedomorphs in this population show retardation of the somatic development and an earlier maturation.en_US
dc.identifier.doi10.1670/11-116
dc.identifier.endpage276en_US
dc.identifier.issn0022-1511
dc.identifier.issn1937-2418
dc.identifier.issn0022-1511en_US
dc.identifier.issn1937-2418en_US
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage270en_US
dc.identifier.urihttps://doi.org/10.1670/11-116
dc.identifier.urihttps://hdl.handle.net/11454/47457
dc.identifier.volume47en_US
dc.identifier.wosWOS:000327903500011en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSoc Study Amphibians Reptilesen_US
dc.relation.ispartofJournal of Herpetologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titlePopulation Size and Age Structure of Metamorphic and Pedomorphic Forms of Ommatotriton ophryticus (Berthold, 1846) in the Northwestern Black Sea Region of Turkeyen_US
dc.typeArticleen_US

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