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  • Küçük Resim
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    Biodiversity and distribution of soil nematodes in Mount Ararat, Turkey
    (Russian Society of Nematologists, 2021) Çakmak, Taylan; Gözel, Çiğdem; Gözel, Uğur; Achiri, Denis Tange; Kaydan, Mehmet Bora
    The diversity and distribution of soil nematodes were studied in Mount Ararat from the altitude of 1523 to 5000 m a.s.l., in habitats with different ecological characteristics. A total of 2,561 individuals were identified belonging to 31 families, 62 genera and 70 species. The nematode diversity (species richness) and the nematode abundance display recognisable patterns of altitudinal distribution as the number of species reaches a maximum at intermediate elevations, whereas the nematode abundance was significantly higher at the elevated altitudes. The nematode community associated with the marshland habitat was significantly different from those associated to the other four types of habitat.
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    Öğe
    Effectiveness of four Turkish entomopathogenic nematode isolates against Bactrocera oleae (Diptera: Tephritidae) pupae at different temperatures
    (2024) Yılmaz, Ayşenur; Çakmak, Taylan; Gözel, Uğur
    Türkiye, is the country of origin of the olive tree and is among the world’s leading olive producers. Most of the olive production in Türkiye is concentrated in Izmir, Aydın, Çanakkale, Balıkesir, Muğla and Bursa Provinces. Bactrocera oleae (Diptera: Tephritidae), being one of the main pests of olive trees, is an important problem in olive cultivation in Türkiye. The efficacy of four Turkish populations of entomopathogenic nematodes against B. oleae pupae was determined under laboratory conditions. They were Steinernema feltiae/12, S. carpocapsae/1133, Heterorhabditis bacteriophora/70, H. bacteriophora/91, which were collected in different regions of Türkiye during our earlier studies. They were tested against the pest by using a single dose at 5 different temperatures (10, 15, 20, 25 and 30 °C). The highest infection rate was observed forH. bacteriophora/91 isolate at 25 °C, and the lowest infection rate was observed for S. feltiae/12 isolate at 10 °C.
  • Küçük Resim
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    New records of free-living nematode species from Mount Ararat, Turkey, with SEM study of three remarkable species
    (Springer, 2021) Çakmak, Taylan; Kaydan, M. Bora; Gözel, Çiğdem; Peña-Santiago, Reyes; Abolafia, Joaquín; Gözel, Uğur
    This paper presents a study of free-living nematodes (excepting Dorylaimida) from Mount Ararat, Turkey. A total of 25 species are recorded, which belong to the orders Enoplida (one species), Triplonchida (2), Chromadorida (1), Monhysterida (2), Plectida (4) and Rhabditida (18). Nine of them are new for the Turkish fauna: Acrobeles andalusicus, A. ciliatus, Acrolobus longigubernaculum, Cervidellus vexilliger, Chiloplacus trilineatus, C. bisexualis, Panagrolaimus rigidus, Propanagrolaimus hygrophilus, and Teratocephalus terrestris. Three species, namely A. longigubernaculum, C. vexilliger and T. auriculatus, are re-described, including morphological and morphometrical data, and SEM study. The altitudinal distribution of the species is also provided.