Age structure and body size of the Strauch’s racerunner, Eremias strauchi strauchi Kessler, 1878

Altunışık, Abdullah; Gül, Çiğdem; Özdemır, Nurhayat; Tosunoğlu, Murat; ERGÜL, Tuğba

doi:10.3906/zoo-1212-18

Cited by 14 publications

(17 citation statements)

References 13 publications

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“…Skeletochronology, which is known as a very effective and reliable method, is used to calculate age by using presence of growth layers in the bone tissue and counting the lines of arrested growth (LAGs) in reptilian species (Castanet, 1994;Nayak et al, 2008;Guarino et al, 2010;Kim et al, 2010;Kolarov et al, 2010;Arakelyan et al, 2013;Kurita & Toda, 2013). For age determination of Turkish reptiles, a growing number of studies has been recently performed (Altunışık et al, 2013;Arakelyan et al, 2013;Tok et al, 2013;Gül et al, 2014Gül et al, , 2015Üzüm et al, 2014Kanat & Tok, 2015;Yakın & Tok, 2015).…”

Section: Introductionmentioning

confidence: 99%

Age and growth of the red-belied lizard, Darevskia parvula

et al. 2016

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In the present study, we investigated potential effects of some environmental climatic factors on life-history traits of twoDarevskia parvulapopulations located at different elevation sites and evaluated age, body size, SSD and growth rate results in these lizards. The age at maturity and longevity were found to be similar in both populations. Males of the highland population had significantly larger snout-vent length and older age than those of the lowland population. Although the mean ages of females were not significantly different between the two populations, the highland population had significantly larger snout-vent length than the lowland population. Considering all individuals (both males and females), we found that specimens from the population in the higher-elevation site had significantly larger snout-vent length and older age than those of the lower-elevation site. A low level of male-biased sexual size dimorphism was observed in both populations. The growth coefficient was lower in the high-elevation site than the lower elevation site. Growth rates were not significantly different between the populations. Our preliminary results indicate that although our studied populations were located at different elevation sites and had distinct climate, longevity, age at sexual maturity and growth rate results were similar. This may be a reason of the lower male-biased sexual size dimorphism in both populations.

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Section: Introductionmentioning

confidence: 99%

Age and growth of the red-belied lizard, Darevskia parvula

et al. 2016

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“…Both of these measurements have unique implications for a given life history trait (Davidowitz et al, 2005;Wilbur and Rudolf, 2006). Age and body size of individuals are 2 standard characteristics that many researchers (Chen et al, 2011;Gül et al, 2011;Chen et al, 2012;Lou et al, 2012;Özdemir et al, 2012;Altunışık et al, 2013;Huang et al, 2013;Gül et al, 2014) have used to quantify life history traits. Many environmental factors (e.g., altitude, climate) can affect variation in age structure, body size, and life history traits (Adolph and Porter, 1993;Guarino et al, 2010;Oufiero et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Altitudinal effects on the life history of the Anatolian lizard(Apathya cappadocica, Werner 1902) from southeastern Anatolia, Turkey

Gül¹,

Özdemır²,

Avcı³

et al. 2015

Turk J Zool

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Altitudinal gradients are an important variable in testing the life history traits (e.g., longevity, age at maturity, and body size) of organisms. In this study, the life history traits of the Anatolian lizard Apathya cappadocica were examined from 3 populations from different altitudes (Kilis, 697 m; Şanlıurfa, 891 m; Diyarbakır, 1058 m) from southeastern Anatolia, Turkey. Age structure was determined by using skeletochronology. Males in all populations were the larger sex; therefore, the populations showed male biases that were negative by the sexual size dimorphism index. Males in Diyarbakır (high altitude) were also younger than males in the other populations. There were no significant differences between the males and females of all 3 populations in terms of either age or snoutvent length except in the Şanlıurfa population, in which males were larger than females. Life history traits of A. cappadocica across altitudinal gradients may be affected by climatic factors, as males from the middle altitude population in Şanlıurfa, which inhabits a warmer and more arid environment, tended to be larger than males and females in Kilis and Diyarbakır.

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“…In the majority of lizards, it is common that males are larger than females (Fitch, 1981). SSD and some morphological characteristics are well known in lizards (Altunışık et al, 2013) and some authors have suggested that this phenomenon generally results from sexual selection, especially from mating competition between the males (Vitt & Cooper, 1985;Shine, 1989;Hews, 1990;Vincent & Herrel, 2007). For instance, individuals might choose their mate based on size, which usually seems to result in male individuals having larger body size and a male-biased SSD.…”

Section: Discussionmentioning

confidence: 99%

Demographic life history traits in a population of a critically endangered species, Darevskia dryada (Darevsky & Tuniyev, 1997)

Altunışık

Eksilmez

2018

Animal Biol.

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Knowing the age structure of endangered species is important in order to contribute to future conservation studies for such species. In this context, we investigated age structure, age at sexual maturity, potential reproductive lifespan and longevity in a population of the Charnali lizard, Darevskia dryada, an endangered species from Turkey. The results show that the Charnali lizard has a longer life span than other lizards of the genus Darevskia that live in the same region. We estimated that these lizards attain their sexual maturity at the age of one or two years and the potential reproductive life span for males and females is six and five years, respectively. As in many other lizards, the Charnali lizard exhibited a low-level male-biased sexual dimorphism in terms of increased size. We believe that this study, in which prior information related to the Charnali lizard is shared, will contribute to future conservation activities for this critically endangered species.

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Age structure and body size of the Strauch’s racerunner, Eremias strauchi strauchi Kessler, 1878

Cited by 14 publications

References 13 publications

Age and growth of the red-belied lizard, Darevskia parvula

Age and growth of the red-belied lizard, Darevskia parvula

Altitudinal effects on the life history of the Anatolian lizard(Apathya cappadocica, Werner 1902) from southeastern Anatolia, Turkey

Demographic life history traits in a population of a critically endangered species, Darevskia dryada (Darevsky & Tuniyev, 1997)

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