Age and growth in two populations of Danford’s lizard,  Anatololacerta danfordi (Günther, 1876), from the eastern Mediterranean

Beşer, Nurettin; Ilgaz, Çetίn; Kumlutaş, Yusuf; Candan, Kamίl; Güçlü, Özgür; Üzüm, Nazan

doi:10.3906/zoo-1909-39

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…Endothermic tetrapods are traditionally described as determinate growers [4][5][6], whereas ectothermic vertebrates as indeterminate growers [4,[7][8][9][10]. This paradigm is commonly mentioned in textbooks and scientific papers [11][12][13][14][15][16][17][18][19][20], although exceptions abound (e.g. indeterminate body growth in kangaroos [21], determinate body growth in fishes [22,23] and reptiles, see below).…”

Section: Introductionmentioning

confidence: 99%

Determinate growth is predominant and likely ancestral in squamate reptiles

et al. 2020

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Body growth is typically thought to be indeterminate in ectothermic vertebrates. Indeed, until recently, this growth pattern was considered to be ubiquitous in ectotherms. Our recent observations of a complete growth plate cartilage (GPC) resorption, a reliable indicator of arrested skeletal growth, in many species of lizards clearly reject the ubiquity of indeterminate growth in reptiles and raise the question about the ancestral state of the growth pattern. Using X-ray micro-computed tomography (µCT), here we examined GPCs of long bones in three basally branching clades of squamate reptiles, namely in Gekkota, Scincoidea and Lacertoidea. A complete loss of GPC, indicating skeletal growth arrest, was the predominant finding. Using a dataset of 164 species representing all major clades of lizards and the tuataras, we traced the evolution of determinate growth on the phylogenetic tree of Lepidosauria. The reconstruction of character states suggests that determinate growth is ancestral for the squamate reptiles (Squamata) and remains common in the majority of lizard lineages, while extended (potentially indeterminate) adult growth evolved several times within squamates. Although traditionally associated with endotherms, determinate growth is coupled with ectothermy in this lineage. These findings combined with existing literature suggest that determinate growth predominates in both extant and extinct amniotes.

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Section: Introductionmentioning

confidence: 99%

Determinate growth is predominant and likely ancestral in squamate reptiles

et al. 2020

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“…Skeletochronology is based on the counting of traces called resting lines (LAG: Line of Arrested Growth), formed on bone tissues in consequence of the metabolic reduction of bone growth along with estivation or hibernation periods in Squamata (Gibbons and McCarty 1983;Castanet and Baez 1991), is a widely preferred method for investigating population age structure of many ectothermic species without sacrificing the specimens (Çiçek et al 2015;Comas et al 2016;Altunışık 2018;Beşer et al 2020;Xiong et al 2020).…”

Section: Age Determinationmentioning

confidence: 99%

Altitude impacts body size but not age in the Asia Minor Thin-toed Gecko (Mediodactylus heterocercus)

et al. 2022

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Animals' age and size-related life-history traits are influenced by a variety of factors. In connection with climate, the effect of altitude on demographic parameters may differ among different populations of the same species. In the present study, it was analyzed that how body size and longevity of the Asia Minor thin-toed gecko, Mediodactylus heterocercus (Blanford, 1874), vary along with an elevational gradient in Turkey. For this purpose, a total of 138 (52 males, 75 females, and 11 young) M. heterocercus specimens from 11 different populations were analyzed. Populations at inter-mediate altitude had shorter lifespans than in both low and high elevations (marginal environments). Furthermore, the adult life expectancy (ESP), which indicates the expected lifespan of individuals having sexual maturity, was higher in high altitude populations (ESP: 6.59 years) than in intermediate populations (ESP: 5.40 years) and low altitude populations (ESP: 6.01 years). The results of the study suggest that Asia Minor thin-toed geckos' body size increases with altitude, but their age does not.

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“…1). A total of 159 occurrence data (31 for A. anatolica, 46 for A. pelasgiana, 22 for A. finikensis, 37 for A. ibrahimi, and 23 for A. danfordi) were obtained from field surveys and literature (Eiselt and Schmidtler, 1986;Mulder, 1995;Baran and Kumlutaş, 1999;Kumlutaş et al, 2015;Yakın and Tok, 2015;Beşer, 2015;Bellati et al, 2015;Candan et al, 2016;Sarıkaya et al, 2017;Beşer et al, 2020;Karakasi et al, 2021). The raw input data for localities are given in Table S1.…”

Section: Study Area and Input Datamentioning

confidence: 99%

Ecological niche differentiation in the Anatolian rock lizards (Genus: Anatololacerta) (Reptilia: Lacertidae) of the Anatolian Peninsula and Aegean Islands

Şahin

Candan²,

Karakasi³

et al. 2022

Acta Herpetol.

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The genus Anatololacerta is distributed in the eastern Mediterranean region including Asia Minor and some east Aegean islands. Recent phylogenetic studies suggested that this genus displayed cryptic diversity and was divided into five species: A. anatolica, A. pelasgiana, A. ibrahimi, A. finikensis and A. danfordi. The ecological niche differentiations of these species have not been studied so far. Our aims for this study were to predict the potential suitable habitats for the species nested in genus Anatololacerta, and to examine the niche overlaps and differentiations via identity and background tests. The occurrence data were obtained from literature and our own field surveys. Occurrence records were rarefied and assessed in a 30 arc-second resolution layer, compatible with several bioclimatic and topographic variables. Species distribution analyses were performed using maximum entropy approach and pairwise niche comparisons were evaluated by identity and background tests. Our results demonstrated that the species delimitation among this genus was not only affected by geographic isolation but also that precipitation and temperature influenced the habitat suitability for these species. Predicted suitability usually well matched the actual species distributions. Moreover, the niche overlap (identity test) analyses verified that allopatric Anatololacerta species show clear ecological differentiations. However, a niche overlap between parapatric species A. pelasgiana and A. finikensis, was confirmed by identity and background tests. It has been suggested that these parapatric species could be more affected by microclimatological parameters than the others. The results of our study are in agreement with the latest phylogenetic study within this genus.

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Age and growth in two populations of Danford’s lizard, Anatololacerta danfordi (Günther, 1876), from the eastern Mediterranean

Cited by 7 publications

References 24 publications

Determinate growth is predominant and likely ancestral in squamate reptiles

Determinate growth is predominant and likely ancestral in squamate reptiles

Altitude impacts body size but not age in the Asia Minor Thin-toed Gecko (Mediodactylus heterocercus)

Ecological niche differentiation in the Anatolian rock lizards (Genus: Anatololacerta) (Reptilia: Lacertidae) of the Anatolian Peninsula and Aegean Islands

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