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    Allozyme variations on subspecies of Meriones tristrami (Rodentia: Gerbillinae) In Western Anatolia
    (Hacettepe University, 2011) Bulut, Şafak; Yiğit, Nuri
    Allozyme variation was investigated by the electrophoretic analysis of 24 gene loci in three subspecies of Meriones tristrami from Western Anatolia. Twenty of the twenty-four loci were monomorphic among populations, whereas four loci were polymorphic. The mean value of the Wright’s fixation index was FST = 0.0671, suggesting the existence of a slightly distinct subspecies in the Meriones tristrami populations. Overall mean heterozygosity (Ho= direct count) for all populations was Ho= 0.017. Nei’s measure of genetic distance was low and varied from D = 0.000 to 0.002 among populations. The number of migrants (Nm) equaled 3.48, which also suggests effective gene flow across populations..
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    Biometric and allozymic variations in the genus dryomys (Rodentia: Gliridae) in Turkey
    (Institute of Biodiversity and Ecosystem Research, 2011) Yiğit, Nuri; Çolak, Ercüment; Çolak, Reyhan; Özlük, Aydın; Gül, Nursel; Çam, Pınar; Saygılı, Fulya
    Biometric and allozymic variations were analysed in three populations of Dryomys nitedula one population of Dryomys laniger from Turkey. Multivariate analysis of 32 external and cranial measurements was performed on 44 specimens. Of the morphometric variables, twenty-six characters were found to be significantly different between both species (Tukey HSD, p < 0.05), and the total variance was explained by seven principle components (80.1%). The Black Sea population of D. nitedula and that of D. laniger were markedly separate on the first two canonical functions. The genetic analysis was carried out on 17 enzyme systems of 36 specimens. Nine out of twenty loci were found to be polymorphic in D. nitedula populations and five were polymorphic in D. laniger. Ldh and Gpi loci were fixed for different alleles between D. nitedula and D. laniger. The mean value of the fixation index (F ST = 0.13) indicated moderate to high genetic differences between the populations of D. nitedula. Nei's measure of genetic distance (D) varied from 0.006 to 0.030 among the populations of D. nitedula, whereas the highest genetic distance appeared between the Black Sea population of D. nitedula and D. laniger (D= 0.187).
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    The spatial and temporal distributions of waterbirds in Lakes Akşehir-Eber and Lake Köyceğiz in western Anatolia, Turkey - a comparative analysis
    (2011) Saygılı, Fulya; Yiğit, Nuri; Bulut, Şafak
    The waterbirds at 2 wetlands (Lakes Akşehir-Eber and Köyceğiz) in western Turkey were compared to determine their spatial and temporal distributions along with their habitat characteristics. The waterbirds were evaluated according to whether they were residents, winter migrants, summer migrants, or transit migrants and were assigned to foraging behavior groups. At Lakes Akşehir-Eber, 67 waterbird species belonging to 17 families and 9 orders were observed, while at Lake Köyce?iz 42 species belonging to 14 families and 9 orders were recorded. The waterbird fauna in both lake systems is composed of the following bird groups in the same order of occurrence: diving birds > wading birds > ducks > marsh birds. According to the qualitative comparison of waterbirds in the wetlands, the compositions of winter and summer migrant communities showed significant differences that could suggest that the vegetation composition, the size, the eutrophication level, and the seasonal climatic conditions of these wetlands play a role. © TÜBİTAK.