Çiğdem GÜl - Academia.edu (original) (raw)

Papers by Çiğdem GÜl

Research paper thumbnail of Turkish Journal of Zoology

Turkish Journal of Zoology

We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) fr... more We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) from a sample (18 adults) of a population living in the vicinity of Iğdır (eastern Turkey) using the skeletochronological method. The maximum observed longevity was 7 years for males and 5 years for females. The age of males ranged from 4 to 7 years (mean 4.91, n = 12), while that of females ranged from 4 to 5 years (mean 4.66, n = 6). The average snout–vent length (SVL) was 61.10 mm in males and 60.82 mm in females. The differences in mean age and SVL between sexes were not statistically significant. Intersexual differences in body size were male-biased, but this state was not statistically significant. Age and SVL were positively correlated in both sexes.

Research paper thumbnail of Variation in Body Size and Age Structure of Stellagama stellio (L., 1758) (Reptilia: Agamidae) from Turkey

Acta Zoologica Bulgarica

Age and body size of 81 Stellagama stellio (syn. Laudakia stellio) specimens from five regions of... more Age and body size of 81 Stellagama stellio (syn. Laudakia stellio) specimens from five regions of Turkey were studied using skeletochronology. Lines of arrested growth (LAGs) in phalanges were used to estimate the age. Snouth vent length (SVL) ranged between 90.05 -133.14 mm (mean: 109.58 ± 10.26) in males and 86.24 -130.43 mm (mean: 105.83 ± 10.68) in females. Age ranged between 2-9 (mean: 5.34 ± 1.63) in females and 3-10 years (mean: 5.72 ± 1.82) in males. We did not observe any significant difference in terms of age and SVL between sexes. Intersexual differences in body size were male-biased (SDI = -0.03) but this relation was not statistically significant. A significant difference between the lowland (below 800 m) and mountain (above 800 m) populations was found in respect of SVL, with mountain individuals being larger than the lowland. A significant age difference between lowland and mountain populations was not found. A significant positive correlation was found between age and SVL both in males and females. Individuals reached maturity between 2 and 3 years.

Research paper thumbnail of Preliminary data on the age structure of Asaccus barani (Baran’s leaf-toed gecko)from southeastern Anatolia, Turkey

TURKISH JOURNAL OF ZOOLOGY, 2015

Research paper thumbnail of A skeletochronological study of the smooth newt Lissotriton vulgaris (Amphibia: Urodela) from an island and a mainland population in Turkey

Italian Journal of Zoology, 2014

ABSTRACT To understand the effects of island and mainland on life history traits (e.g. longevity,... more ABSTRACT To understand the effects of island and mainland on life history traits (e.g. longevity, age at maturity, body size and body mass) of the smooth newt Lissotriton vulgaris (Linnaeus, 1758), we generated data on age and body measurements for an island (Bozcaada) and a mainland (Çanakkale) population in northwestern Turkey. Age was determinated by skeletochronology. The maximum life span was 4 years in the island population and 5 years in the mainland population. Age at maturity was estimated to be 2–3 years for both sexes and the populations. While mean snout-venth length (SVL) was calculated as 35.56 mm for females and 31.95 mm for males in the mainland population, it was found to be 32.83 mm for females and 31.78 mm for males in the island population. Females from the mainland population were found to be significantly larger and heavier than those of the island population. A significant positive correlation was found between SVL and age for only males in the mainland population. Unexpectedly, age was not correlated with body size for the island individuals. Since there were hardly any demographic studies on any Urodela species comparing island and mainland populations, in this paper we contribute to the literature on this subject.

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

TURKISH JOURNAL OF ZOOLOGY, 2013

We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) fr... more We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) from a sample (18 adults) of a population living in the vicinity of Iğdır (eastern Turkey) using the skeletochronological method. The maximum observed longevity was 7 years for males and 5 years for females. The age of males ranged from 4 to 7 years (mean 4.91, n = 12), while that of females ranged from 4 to 5 years (mean 4.66, n = 6). The average snout-vent length (SVL) was 61.10 mm in males and 60.82 mm in females. The differences in mean age and SVL between sexes were not statistically significant. Intersexual differences in body size were male-biased, but this state was not statistically significant. Age and SVL were positively correlated in both sexes.

Research paper thumbnail of Genomic Variation within Laudakia stellio (Linnaeus, 1758) (Sauria: Agamidae) in Turkey, Based on Analyses of Mitochondrial 12S rRNA Sequences

Journal of Animal and Veterinary Advances, 2011

... and classification of the family Agamidae were controversial (Moody, 1980, 1983; Frost and Et... more ... and classification of the family Agamidae were controversial (Moody, 1980, 1983; Frost and Etheridge, 1989; Joger, 1991; Lazell, 1992; Schwenk ... in the Aegaean, Anatolia and Vicinity, Ls cypriaca (Daan, 1967) on Cyprus, Ls picea in North-eastern Jordan, Ls brachydactyla in ...

Research paper thumbnail of Changes in the blood composition of some anurans

Acta Herpetologica, 2011

We examined some hematological parameters (red blood cell count, white blood cell count, haemoglo... more We examined some hematological parameters (red blood cell count, white blood cell count, haemoglobin concentration, hematocrit value, mean cell volume, mean cell haemoglobin, mean cell haemoglobin concentration and plasma total protein) on five ...

Research paper thumbnail of Hematology of the Northern Banded Newt, Ommatotriton ophryticus (Amphibia: Urodela), from North Anatolia

Russian Journal of …, 2011

We examined some hematological parameters and the cytomorphometry of blood cells (erythrocytes, l... more We examined some hematological parameters and the cytomorphometry of blood cells (erythrocytes, leukocytes, and thrombocytes) in eight adult individuals (3 males; 5 females) of Ommatotriton ophryticus from Uzungöl village (Trabzon Province), Turkey. In 1 mm 3 of ...

Research paper thumbnail of Hematology of the Lycian Salamander, Lyciasalamandra fazilae

North-Western Journal of Zoology, 2009

Abstract. We examined some hematological parameters and the cytomorphometry of blood cells (eryth... more Abstract. We examined some hematological parameters and the cytomorphometry of blood cells (erythrocyte, leucocyte and thrombocyte) in 10 (5♂♂, 5♀♀) adult Lycian salamanders, Lyciasalamandra fazilae, from İztuzu-Muğla, Turkey. In 1 mm3 of blood, we estimated the erythrocyte count as 1.06 x105 (0.73 x105-1.40 x105), leucocyte count as 2.14 x103 (1.60 x103–2.87 x103), haemoglobin amount as 5.00 (4.80-5.20) g/dl, hematocrit value as 36.66 (36.00-38.00)%, mean cell volume as 3281.2 (2714.3-3600.0) fl, mean cell ...

Research paper thumbnail of Turkish Journal of Zoology

Turkish Journal of Zoology

We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) fr... more We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) from a sample (18 adults) of a population living in the vicinity of Iğdır (eastern Turkey) using the skeletochronological method. The maximum observed longevity was 7 years for males and 5 years for females. The age of males ranged from 4 to 7 years (mean 4.91, n = 12), while that of females ranged from 4 to 5 years (mean 4.66, n = 6). The average snout–vent length (SVL) was 61.10 mm in males and 60.82 mm in females. The differences in mean age and SVL between sexes were not statistically significant. Intersexual differences in body size were male-biased, but this state was not statistically significant. Age and SVL were positively correlated in both sexes.

Research paper thumbnail of Variation in Body Size and Age Structure of Stellagama stellio (L., 1758) (Reptilia: Agamidae) from Turkey

Acta Zoologica Bulgarica

Age and body size of 81 Stellagama stellio (syn. Laudakia stellio) specimens from five regions of... more Age and body size of 81 Stellagama stellio (syn. Laudakia stellio) specimens from five regions of Turkey were studied using skeletochronology. Lines of arrested growth (LAGs) in phalanges were used to estimate the age. Snouth vent length (SVL) ranged between 90.05 -133.14 mm (mean: 109.58 ± 10.26) in males and 86.24 -130.43 mm (mean: 105.83 ± 10.68) in females. Age ranged between 2-9 (mean: 5.34 ± 1.63) in females and 3-10 years (mean: 5.72 ± 1.82) in males. We did not observe any significant difference in terms of age and SVL between sexes. Intersexual differences in body size were male-biased (SDI = -0.03) but this relation was not statistically significant. A significant difference between the lowland (below 800 m) and mountain (above 800 m) populations was found in respect of SVL, with mountain individuals being larger than the lowland. A significant age difference between lowland and mountain populations was not found. A significant positive correlation was found between age and SVL both in males and females. Individuals reached maturity between 2 and 3 years.

Research paper thumbnail of Preliminary data on the age structure of Asaccus barani (Baran’s leaf-toed gecko)from southeastern Anatolia, Turkey

TURKISH JOURNAL OF ZOOLOGY, 2015

Research paper thumbnail of A skeletochronological study of the smooth newt Lissotriton vulgaris (Amphibia: Urodela) from an island and a mainland population in Turkey

Italian Journal of Zoology, 2014

ABSTRACT To understand the effects of island and mainland on life history traits (e.g. longevity,... more ABSTRACT To understand the effects of island and mainland on life history traits (e.g. longevity, age at maturity, body size and body mass) of the smooth newt Lissotriton vulgaris (Linnaeus, 1758), we generated data on age and body measurements for an island (Bozcaada) and a mainland (Çanakkale) population in northwestern Turkey. Age was determinated by skeletochronology. The maximum life span was 4 years in the island population and 5 years in the mainland population. Age at maturity was estimated to be 2–3 years for both sexes and the populations. While mean snout-venth length (SVL) was calculated as 35.56 mm for females and 31.95 mm for males in the mainland population, it was found to be 32.83 mm for females and 31.78 mm for males in the island population. Females from the mainland population were found to be significantly larger and heavier than those of the island population. A significant positive correlation was found between SVL and age for only males in the mainland population. Unexpectedly, age was not correlated with body size for the island individuals. Since there were hardly any demographic studies on any Urodela species comparing island and mainland populations, in this paper we contribute to the literature on this subject.

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

TURKISH JOURNAL OF ZOOLOGY, 2013

We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) fr... more We studied, for the first time, the age structure of Eremias strauchi strauchi (Kessler, 1878) from a sample (18 adults) of a population living in the vicinity of Iğdır (eastern Turkey) using the skeletochronological method. The maximum observed longevity was 7 years for males and 5 years for females. The age of males ranged from 4 to 7 years (mean 4.91, n = 12), while that of females ranged from 4 to 5 years (mean 4.66, n = 6). The average snout-vent length (SVL) was 61.10 mm in males and 60.82 mm in females. The differences in mean age and SVL between sexes were not statistically significant. Intersexual differences in body size were male-biased, but this state was not statistically significant. Age and SVL were positively correlated in both sexes.

Research paper thumbnail of Genomic Variation within Laudakia stellio (Linnaeus, 1758) (Sauria: Agamidae) in Turkey, Based on Analyses of Mitochondrial 12S rRNA Sequences

Journal of Animal and Veterinary Advances, 2011

... and classification of the family Agamidae were controversial (Moody, 1980, 1983; Frost and Et... more ... and classification of the family Agamidae were controversial (Moody, 1980, 1983; Frost and Etheridge, 1989; Joger, 1991; Lazell, 1992; Schwenk ... in the Aegaean, Anatolia and Vicinity, Ls cypriaca (Daan, 1967) on Cyprus, Ls picea in North-eastern Jordan, Ls brachydactyla in ...

Research paper thumbnail of Changes in the blood composition of some anurans

Acta Herpetologica, 2011

We examined some hematological parameters (red blood cell count, white blood cell count, haemoglo... more We examined some hematological parameters (red blood cell count, white blood cell count, haemoglobin concentration, hematocrit value, mean cell volume, mean cell haemoglobin, mean cell haemoglobin concentration and plasma total protein) on five ...

Research paper thumbnail of Hematology of the Northern Banded Newt, Ommatotriton ophryticus (Amphibia: Urodela), from North Anatolia

Russian Journal of …, 2011

We examined some hematological parameters and the cytomorphometry of blood cells (erythrocytes, l... more We examined some hematological parameters and the cytomorphometry of blood cells (erythrocytes, leukocytes, and thrombocytes) in eight adult individuals (3 males; 5 females) of Ommatotriton ophryticus from Uzungöl village (Trabzon Province), Turkey. In 1 mm 3 of ...

Research paper thumbnail of Hematology of the Lycian Salamander, Lyciasalamandra fazilae

North-Western Journal of Zoology, 2009

Abstract. We examined some hematological parameters and the cytomorphometry of blood cells (eryth... more Abstract. We examined some hematological parameters and the cytomorphometry of blood cells (erythrocyte, leucocyte and thrombocyte) in 10 (5♂♂, 5♀♀) adult Lycian salamanders, Lyciasalamandra fazilae, from İztuzu-Muğla, Turkey. In 1 mm3 of blood, we estimated the erythrocyte count as 1.06 x105 (0.73 x105-1.40 x105), leucocyte count as 2.14 x103 (1.60 x103–2.87 x103), haemoglobin amount as 5.00 (4.80-5.20) g/dl, hematocrit value as 36.66 (36.00-38.00)%, mean cell volume as 3281.2 (2714.3-3600.0) fl, mean cell ...