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Öğe A New Locality for Rana ridibunda caralitana Arikan, 1988 (Anura: Ranidae) in the Central Anatolia(Ege Univ, 2006) Ayaz, Dincer; Tok, Cemal Varol; Mermer, Ahmet; Tosunoğlu, Murat; Afsar, Murat; Cicek, KerimIn this study, a total of 18 (10 male male, 8 female female) adult marsh frog specimens collected from Bor (Nigde) have been examined through the morphological analysis, primarily on their coloration and pattern characteristics. It is concluded that the examined specimens fall into caralitana category. Thus, the distrubution area of caralitana has been extended.Öğe A skeletochronological study of age, growth and longevity in two freshwater turtles, Emys orbicularis and Mauremys rivulata, from Mediterranean Turkey (Reptilia: Testudines)(Taylor & Francis Ltd, 2016) Cicek, Kerim; Kumas, Meltem; Ayaz, Dincer; Tok, Cemal VarolWe estimated growth parameters of Emys orbicularis and Mauremys rivulata in Mediterranean Turkey with the skeletochronological method, using specimens drowned in fyke nets. In adult E. orbicularis, the median age was 8 years in males and 10 years in females. The median age of adult M. rivulata was 10 years for both sexes. Both species reach sexual maturity at an age of 5-7 years. No difference was found in age composition between the sexes.Öğe A Trematode Parasite Infecting the Skin of Rana ridibunda Complex (Sensu Lato) from Dalaman (Mugla, Turkey)(Taylor & Francis Inc, 2010) Unal, Guler; Ayaz, Dincer; Tok, Cemal Varol; Saygi, GulendameWe examined the structure of the black spots on the ventral surface of Rana ridibunda specimens, which were collected from the west Anatolia region of Turkey, and a multi-cellular parasite was discovered under these spots on the dermis within a cyst. The number of melanocytes had increased and the connective tissue of the dermis had surrounded the cyst. The parasite was a trematode in its metacercarial stage.Öğe ABUNDANCE OF WESTERN CASPIAN TURTLE, Mauremys rivulata (VALENCIENNES, 1833) IN GOKCEADA (IMBROS), TURKEY(Folium Publ Co, 2016) Bayrakci, Yusuf; Ayaz, Dincer; Yakin, Batuhan Yaman; Cicek, Kerim; Tok, Cemal VarolIn this study, we present data on the population of Western Caspian Turtle, Mauremys rivulata, from Gokceada (Imbros) located at the westernmost of Turkey. The species is distributed almost all around the island, particularly in the western part, with a very low density. Distribution of the species on the island was mapped and a total of 73 individuals were captured and marked in Buyukdere, the largest river of the island. Population size was estimated at 135 individuals (SE - 11, range - 117 - 161) and density was calculated as 68 ind/ha. Moreover, Emys orbicularis, another freshwater turtle species, which cohabits in the west Anatolia, was observed again on the island after 15 years. Tourism, creeks with irregular flow regime and holding water in the dams negatively affect populations of aquatic species, primarily M. rivulata on the island.Öğe Age, Growth and Longevity of Kotschy's Gecko, Mediodactylus kotschyi (Steindachner, 1870) (Reptilia, Gekkonidae) from Central Anatolia, Turkey(Inst Zoology, Bas, 2015) Cicek, Kerim; Afsar, Murat; Kumas, Meltem; Ayaz, Dincer; Tok, Cemal VarolWe studied the age structure of Kotschy's gecko, Mediodactylus kotschyi, from the Sultan Mountains (Central Anatolia, Turkey) using the skeletochronological method. We examined the humeral diaphyseal cross sections of a total of 19 (six males and 13 females) museum specimens. Our results showed that the age structure ranged from three to seven years (mean = 4.2 years, SD = 1.47) in males and from two to eight years (mean = 4.5 years, SD = 1.81) in females. Both sexes reached sexual maturity after their second hibernation, and no statistically significant difference in age composition was observed between the sexes. There was a strong positive correlation between SVL and age (Spearman's correlation coefficient, r = 0.93) and Von Bertalanffy growth curves fitted to the relationships between age (k = 0.80) and SVL (SVLmax = 42.4). In conclusion, M. kotschyi is a short-lived species with a high growth rate.Öğe An investigation on endoparasites of Rana ridibunda complex (s. I.) with dermal parasite (metacercariae) in Dalaman (Turkey)(Triveni Enterprises, 2007) Unal, Guler; Saygi, Gulendame; Ayaz, Dincer; Tok, Cemal VarolIn this study, endoparasites of the Rana ridibunda specimens collected from Dalaman area, southwestern Turkey were investigated. In the intestine of 17 specimens of R. ridibunda, five different parasites, represented by three species of the trematoda (Diplodiscus sp, Pleurogenoides sp, Plagiorchis sp) and two genera of round worms (Cosmocerca sp; Foleyella sp) were recognized. The trematoda and one of the round worms were found in the rectal region whereas the other round worm species are observed in the abdominal cavity.Öğe An investigation on endoparasites of Rana ridibunda complex (s. l.) with dermal parasite (metacercariae) in Dalaman (Turkey)(Triveni Enterprises, 2007) Unal, Guler; Saygi, Gulendame; Ayaz, Dincer; Tok, Cemal VarolIn this study, endoparasites of the Rana ridibunda specimens collected from Dalaman area, southwestern Turkey were investigated. In the intestine of 17 specimens of R. ridibunda, five different parasites, represented by three species of the trematoda (Diplodiscus sp, Pleurogenoides sp, Plagiorchis sp) and two genera of round worms (Cosmocerca sp, Foleyella sp) were recognized. The trematoda and one of the round worms were found in the rectal region whereas the other round worm species are observed in the abdominal cavity. © Triveni Enterprises.Öğe Cyrtopodion (Mediodactylus) kotschyi (STEINDACHNER, 1870) from Civril, Denizli (western Turkey)(Pensoft Publishers, 2011) Afsar, Murat; Ayaz, Dincer; Afsar, Birgul; Cicek, Kerim; Tok, Cemal Varol[Anstract Not Available]Öğe Data on the Food Composition of European Glass Lizard, Pseudopus apodus (Pallas, 1775) (Squamata: Anguidae) from Canakkale (Western Anatolia, Turkey)(Inst Zoology, Bas, 2014) Cicek, Kerim; Tok, Cemal Varol; Hayretdag, Sibel; Ayaz, DincerWe examined the food composition of the European Glass Lizard, Pseudopus apodus, from canakkale (Western Anatolia, Turkey), by means of the stomach content analysis. Some 72 prey items with sizes ranging from 10 to 60 mm were detected in the stomach contents of the 13 (7 male male, 6 female female) museum specimens under examination. The median number of prey items was 5 (range = 3-8) in males and 4 (4-6) in females. According to the obtained data, the class Insecta (86.1%) is the predominant food of the species, with the most frequently observed prey items belonging to the order Coleoptera (76.4%). Orthoptera (4.2%), Hemiptera (5.6%), Gastropoda (8.3%), and Isopoda (5.6%) are the other prey groups observed in the food contents. Even though no difference in food contents was observed between the sexes, the food niche breadth of females was higher. In conclusion, the main food of P. apodus consists of non-flying or weak-flying insects as well as other invertebrates.Öğe Epizoic freshwater algae on Emys orbicularis (Testudinata: Emydidae) from the Central Anatolia region of Turkey(Oikos Publ Inc, 2006) Soylu, Elif Neyran; Gonulol, Arif; Sukatar, Atakan; Ayaz, Dincer; Tok, Cemal VarolWe surveyed the epizoic algae growing on Emys orbicularis from several sites in the Central Anatolia region of Turkey during the nesting season (May-August) of 2005. Fifty-three algae species were found on carapaces of thirty-five E. Orbicularis, with considerable variation in the algal communities from different sites.Öğe Food habits of the Lycian Salamander, Lyciasalamandra fazilae (Basoglu and Atatur, 1974)(Univ Oradea Publ House, 2007) Cicek, Kerim; Tok, Cemal Varol; Mermer, Ahmet; Tosunoğlu, Murat; Ayaz, DincerWe analyzed stomach contents of 21 (13 (3,3, 8 female female) adult Lycian salamanders, Lyciasalaniandra fazilae, inhabiting Go)kbel and iztuzu, south of Dalyan (Koycegiz, Mugla). Although various terrestrial invertebrates constitute the diet of the salamander, larvae and adult beetles (39.61%), centipedes (16.88%) are the most important food groups. Lyciasalaniandra fazilae is an active predator capable of changing its feeding regime in proportion to the species richness within its habitat.Öğe Genetic structuring of Anguis fragilis (L., 1758) inhabiting in the north of 40° north latitude in Turkey(Taylor & Francis Ltd, 2013) Keskin, Emre; Hayretdag, Sibel; Cicek, Kerim; Ayaz, Dincer; Tok, Cemal VarolThe taxonomic situation of Anguis fragilis species is still unclear in Turkey. In order to clarify this situation, we used the DNA sequences of 16S rRNA and cytochrome b genes to analyze the phylogenetic relationship among A. fragilis populations. A total of 13 haplotypes in 16S rRNA dataset and 20 haplotypes in cytochrome b dataset were detected. Kimura 2-parameter genetic distance was found to be 0.012 for 16S rRNA and 0.026 for the cytochrome b dataset. Neighbor joining (NJ) trees were constructed to analyze phylogenetic relationship among specimens and were supported with median joining networks. Results indicate a clear genetic structuring in A. fragilis populations sampled from north of 408 north latitude of Turkey. Both mitochondrial gene sequences successfully detected the intraspecific variation among specimens of different populations. Genetic structuring, correlated with geographic distance, was found to be significant at the specimens sampled from edge populations of peripherally isolated climatic conditions.Öğe Genetic structuring of Pseudopus apodus (Pallas, 1775) (Sauria: Anguidae) in north Anatolia, Turkey(Pergamon-Elsevier Science Ltd, 2013) Keskin, Emre; Tok, Cemal Varol; Hayretdag, Sibel; Cicek, Kerim; Ayaz, DincerIn this study, mitochondrial 16S rRNA and cytochrome b sequences were used to infer the genetic structure of Pseudopus apodus (Pallas, 1775) populations sampled from 40 North latitude of Turkey. Mean percent G-C contents of 47.13 and 46.66 were determined for 16S rRNA and cytochrome b datasets, respectively. Two haplotypes were found using 16S rRNA dataset, with 6 variable loci and a haplotype diversity of 0.1053, while Cytochrome b dataset consist of 10 haplotypes, with 18 variable loci and a haplotype diversity of 0.1943. Also mean genetic distance was found to be eight times higher in the cytochrome b dataset. Kimura 2-parameter genetic distance matrix was evaluated together with neighbor joining tree and median joining network in order to reveal possible divergence points in both datasets. Results indicated signs of 3 regional populations, including potential cryptic species from Digor or subspecies from Samsun and Sinop. (C) 2013 Elsevier Ltd. All rights reserved.Öğe Hematology of the Lycian Salamander, Lyciasalamandra fazilae(Univ Oradea Publ House, 2009) Tok, Cemal Varol; Tosunoğlu, Murat; Ayaz, Dincer; Cicek, Kerim; Gul, CigdemWe examined some hematological parameters and the cytomorphometry of blood cells (erythrocyte, leucocyte and thrombocyte) in 10 (5 males, 5 females) adult Lycian salamanders, Lyciasalamandra fazilae, from Iztuzu - Mugla, Turkey. In 1 mm(3) of blood, we estimated the erythrocyte count as 1.06x10(5) (0.73x10(5)-1.40x10(5)), leucocyte count as 2.14x10(3) (1.60x10(3) - 2.87x10(3)), 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 haemoglobin as 451.01 (342.86-520.00) pg, and mean cell haemoglobin concentration as 13.65 (12.63-14.44) %. Small differences were observed in cell sizes, although they are concluded to be individual variations.Öğe Mitochondrial diversity of European pond turtles (Emys orbicularis) in Anatolia and the Ponto-Caspian Region: Multiple old refuges, hotspot of extant diversification and critically endangered endemics(Springer Heidelberg, 2009) Fritz, Uwe; Ayaz, Dincer; Hundsdoerfer, Anna K.; Kotenko, Tatiana; Guicking, Daniela; Wink, Michael; Tok, Cemal VarolThe European pond turtle, Emys orbicularis (Linnaeus, 1758), is one of the world's most widely distributed chelonian species. We investigated its mitochondrial phylogeography and demography using similar to 1300 cyt b sequences from the entire range, with a focus on the eastern part, in particular on Turkey, where the species currently suffers massive losses. Coloration data from > 1450 turtles were compared with mtDNA differentiation to assess the validity of the currently accepted subspecies from Turkey, the Black Sea Region, the Transcaucasus, and Iran. Our study region harbors considerable part of the mtDNA diversity of Emys, including a newly discovered lineage and 16 new haplotypes. In this area corresponding to approximately one-third of the entire distribution range, six out of the ten mitochondrial lineages and about half of all 72 haplotypes occur. Two mitochondrial lineages (VIII, X) are confined to small ranges along the southern coast of Turkey, another lineage (I) occupies the remainder of Turkey, the entire Black Sea Region, and the north-eastern part of the species' range. In the south-western corner of the Black Sea and in the Aegean Region, two lineages (II, IV) occur that have their main distribution areas farther west. In the Transcaucasus and northern Iran, another endemic lineage (VII) is found. Lineage I is the largest and most diverse of all lineages and has its greatest diversity in Anatolia. Phylogeographic and demographic data suggest Anatolia as an ancient glacial refuge for turtles harboring mitochondrial lineages I, VIII and X, and that Anatolia and the Black Sea coasts constitute a hotspot for a younger burst of diversification within lineage I. These two regions correspond to the glacial refuge from which lineage I turtles recolonized more northerly parts of the range in the Holocene; lineage II represents an off-shoot of lineage I that became isolated in a westward-located refuge in the south-eastern Balkans during a previous Pleistocene glacial. Our data on coloration indicate that Such characters have only limited value for delineating evolutionarily significant units. We propose to reduce the number of subspecies using mtDNA lineages as arbiter, and to recognize three subspecies as valid in Turkey, the Black Sea Region, the Transcaucasus and Iran: Emys orbicularis orbicularis (mtDNA lineage 1); E. o. eiselti Fritz et al., 1998 (X); and E. o. persica Eichwald, 1831 (VII). However, the Southern Turkish lineage VIII most probably represents an additional undescribed subspecies. Both southern Turkish endemics are critically endangered, with only three surviving populations of fewer than 30 adults each. We recommend establishing sanctuaries for them, and including them in the IUCN Red List. (C) 2009 Gesellschaft fur Biologische Systematik. Published by Elsevier GmbH. All rights reserved.Öğe Morphologic and serologic comparison of two Turkish populations of Mauremys rivulata and Mauremys caspica(Allen Press Inc, 2006) Ayaz, Dincer; Turkozan, Oguz; Tosunoğlu, Murat; Tok, Cemal Varol; Cihan, DurmusTwo Turkish populations of Mauremys caspica and Mauremys rivulata were compared morphologically, serologically, and ecologically. Morphometric differences were noted among sexes and populations. Electrophoretic patterns demonstrated significant differences between the taxa and supported their status as distinct species.Öğe New record localities of five snake Species in Turkey(Osterreichische Gesellschaft Herpetologie E V, 2013) Afsar, Murat; Cicek, Kerim; Dincaslan, Yumus Emre; Ayaz, Dincer; Tok, Cemal Varol[Anstract Not Available]Öğe New records of the Anatolian Worm Lizard, Blanus strauchi (BEDRIAGA, 1884), from Turkey (Squamata: Amphisbaenia: Blanidae)(Osterreichische Gesellschaft Herpetologie E V, 2012) Tok, Cemal Varol; Tosunoğlu, Murat; Ayaz, Dincer; Cicek, Kerim; Mutlu, Hasan SerdarIn this study, eight specimens of Blanus strauchi (BEDRIAGA, 1884) from two new localities in Turkey (Dutluca Village, Kemaliye, Erzincan and Burdur) were examined in terms of morphological characters and included in the subspecies B. s. aporus (WERNER, 1898). With the record of Dutluca Village, the distribution of the species was extended about 120 km northwards, whereas the record of Burdur is a new locality within its distributional range. An updated distribution map of B. strauchi in Turkey was provided.Öğe On the occurrence of the Pond Slider Turtle Trachemys scripta (Thunberg in Schoepff, 1792) from southwestern Türkiye(Department of Environmental Sciences, Arak University, 2024) Yakın, Batuhan Yaman; Çiçek, Kerim; Bayrakçı, Yusuf; Günay, Ulvi Kerem; Afşar, Murat; Ayaz, Dincer; Tok, Cemal VarolTrachemys scripta is included among the 100 most invasive species worldwide. Since the first report on the presence of pond slider turtles from natural habitats in Türkiye, the distribution of this invasive species comprises almost thirty provinces. However, it spread to much wider sites than the regions determined until today. Besides, there is a lack of knowledge on which subspecies exist in the invaded habitats. Within this study, we presented the presence of two subspecies of the invasive alien slider turtle for the first time from the Reşadiye, Datça, Muğla, Türkiye. We also suggest certain precautions should be taken against slider turtles to contribute to preventing their invasion of our biodiversity.Öğe Population estimate and body size of European pond turtles (Emys orbicularis) from Pazaragac (Afyonkarahisar/Turkey)(Walter De Gruyter Gmbh, 2007) Ayaz, Dincer; Fritz, Uwe; Tok, Cemal Varol; Mermer, Ahmet; Tosunoğlu, Murat; Afsar, Murat; Cicek, KerimData on population size, adult sex ratio, body size and mass are provided for a population of the turtle Emys orbicularis near Pazaragac (Afyonkarahisar/Turkey). Using the mark-recapture method (triple catch), a population size of 664 turtles was estimated (95% confidence interval, range 332-996), corresponding to a density of 83 turtles per hectare (range 41.5-124.5). The adult sex-ratio was significantly skewed in favor of males (2.02 males: 1 female; P < 0.001). Almost all recorded specimens were adult (98.1%). Mean straight carapace length (SCL) and body mass (BM) of adult turtles were: SCL = 128.65 mm, BM = 345 g for males (n = 168) and SCL = 135.37 mm, BM = 463 g for females (n = 83).
