Ostracods (Crustacea) and habitat similarities in the Bolu region (Turkey)

A total of 41 freshwater ostracod species belonging to 21 genera was collected from 144 different aquatic bodies in the Bolu region during the summer of 2006. The genus Schellencandona and 12 species (Candona weltneri, C. sanociensis, C. lactea, Fabaeformiscandona cf. breuili, F. balatonica, F. brevicornis, F. protzi, F. latens, Schellencandona cf. belgica, Pseudocandona cf. semicognita, Potamocypris similis, and P. smaragdina) are new for the Turkish Ostracoda fauna. Additionally, 5 other species (Herpetocypris brevicaudata, Heterocypris salina, H. rotundata, Cyclocypris laevis, Trajancypris serrata) are new for Bolu. UPGMA analyses showed districts of Bolu in 5 clustering groups. The highest habitat similarity (75%) was found between Yeniçağa and Göynük, while the least (20%) was observed between Seben and Merkez districts. Shannon-Weaver diversity suggested the highest evenness for ostracods at Dörtdivan (0.95) and the highest diversity index (H') at Merkez district (2.63). Mechanisms of species dispersion are numerous, and may account for observed distributional patterns.

Anahtar Kelimeler:

Key words: Ostracoda, habitat similarities, diversity index, Bolu, Turkey

Ostracods (Crustacea) and habitat similarities in the Bolu region (Turkey)

Keywords:

Key words: Ostracoda, habitat similarities, diversity index, Bolu, Turkey,

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Altınsaçlı, S. and Griffiths, H. I. 2002. A review of the occurrence and distribution of the recent non-marine Ostracoda (Crustacea) of Turkey. Zoology in the Middle East. 27: 61-67.
Adams, M. J. 1999. Correlated factors in amphibian declines: exotic species and habitat change in western Washington. J. Wild. Manag. 63: 1162–1171.
Beintema, A. J. 1983. Meadow birds as indicators. Environ. Monit. Assess. 3: 391–398.
Carignan, V. and Villard, M-A. 2002. Selecting indicator species to monitor ecological Integrity: A Review. Environmental Monitoring and Assessment. 78: 45-61.
De Boer, T. A. 1983. Vegetation as an indicator of environmental changes. Environ. Monit. Assess. 3: 375–380.
Dufrêne, M. and Legendre, P. 1997. Species assemblages and indicator species: the need for a flexible asymmetrical approach. Ecol. Monogr. 67: 345–366.
Dügel, M., Külköylüoğlu, O. and Kılıç, M. 2008. Species assemblages and habitat preferences of Ostracoda (Crustacea) in Lake Abant (Bolu, Turkey). Belgian Journal of Zoology. 138: 50-59.
Forester, R. M. and Brouwers, E. M. 1985. Hydrochemical parameters governing the occurrence of estuarine and marginal estuarine ostracodes: an example from South Central Alaska. J. of Paleontology. 59: 344-369.
Hutto, R. L. 1998. Using landbirds as an indicator species group. In: Avian Conservation: Research and Management. Island Press, Washington (D.C.). (eds., J. M. Marzluff, and R. Sallabanks), p. 75–91.
İkinci, N. and Güner, A. 2007. Flora of Gölcük Area (Bolu, Turkey). Turk. J. Bot. 31: 87-107.
Karakaş-Sarı, P. and Külköylüoğlu, O. 2008. Comparative ecology of Ostracoda (Crustacea) in two rheocrene springs (Bolu, Turkey). Ecological Research. 23: 821-830.
Karanovic, I. 2001. Meischcandona gen. now. From Africa, with a key to the genera of the subfamily Candoninae (Crustacea, Ostracoda). Biologie. 71: 93-99.
Karanovic, I. 2006. Recent Candoninae (Crustacea, Ostracoda) of North America. Records of the Western Australian Museum Supplement. No.71. pp.75.
Karr, J. R. 1981. Assessment of biotic integrity using fish communities. Fisheries. 6, 21–27.
Kempf, E. K. 1980. Index and Bibliography of Marine Ostracoda, part 1. Sonderveröffentlichungen des Geologischen Instituts der Universität zu Köln. 35: 1188. [Index A.].
Kempf, E. K. 1997. Index and Bibliography of Nonmarine Ostracoda, part 6. Sonderveröffentlichungen des Geologischen Instituts der Universität zu Köln. 109: 1143. [Index A, Suppl.].
Kovach, W. 1998. Multi-variate statistical package, ver. 3.0. Kovach Computer Services. Pentraeth, UK.
Külköylüoğlu, O. 1999. Seasonal distribution of freshwater Ostracoda (Crustacea) in springs of Nevada. Geosound-Science and Technology Bulletin on Earth Science, 35: 85-91.
Külköylüoğlu, O. 2003. Ecology of freshwater Ostracoda (Crustacea) from lakes and reservoirs in Bolu-Turkey. Journal of Freshwater Ecology. 18: 343-347.
Külköylüoğlu, O. 2004. On the use of ostracods (Crustacea) as bioindicator species in different aquatic habitats in the Bolu region, Turkey. Ecological Indicators. 4: 139-147.
Külköylüoğlu, O. 2005a. Factors effecting Ostracoda (Crustacea) occurrence in Yumrukaya Reedbeds (Bolu, Turkey). Wetlands. 25: 224-227.
Külköylüoğlu, O. 2005b. Ecology and phenology of freshwater Ostracods in Lake Gölköy (Bolu, Turkey). Aquatic Ecology. 39: 295-304.
Külköylüoğlu, O. 2005c. Ecological requirements of freshwater Ostracoda (Crustacea) in two limnocrene springs (Bolu, Turkey). Ann. Limnol. –Int. J. Lim. 41: 237-246.
Külköylüoğlu, O. 2009. Ecological succession of freshwater Ostracoda (Crustacea) in a Rheocrene spring (Bolu, Turkey). Turk. J. Zool. 33: 1-9.
Külköylüoğlu, O. Dügel, M., and Kılıç, M. 2007. Ecological requirements of Ostracoda (Crustacea) in a heavily polluted shallow lake, Lake Yeniçağa (Bolu, Turkey). Hydrobiologia. 585:119–133.
Külköylüoğlu, O. and Vinyard, G. L. 2000. Distribution and ecology of freshwater Ostracoda (Crustacea) collected from springs of Nevada, Utah, and Oregon: Apreliminary study. West. North Amer. Natur. 60: 291-303.
Külköylüoğlu, O. and Yılmaz, F. 2006. Contribution to the knowledge of ecological requirements of Ostracoda (Crustacea) in three kinds of springs. Limnologica. 36: 172-180.
Launer, A. E. and Murphy, D. D. 1994. Umbrella species and the conservation of habitat fragments: A case of a threatened butterfly and a vanishing grassland ecosystem. Biol. Conserv. 69: 145–153.
MacArthur, R. H., and Wilson, E. O. 1963. An equilibrium theory of insularzoogeography. Evolution. 17: 373-387.
MacArthur, R. H., and Wilson, E. O. 1967. The theory of island biogeography. Princeton University Press, Princeton, N.J. 203 pages.
Magurran, A. E. 1988. Ecological diversity and its measurement. Princeton University Press, Princeton, N. J. 179 pages.
Meisch, C. 2000. Freshwater Ostracoda of Western and Central Europe. Süsswasserfauna von Mitteleuropa 8/3. Spektrum Akademischer Verlag, Heidelberg, Berlin. 522 pages.
Paine, R. T. 1969. A note on trophic complexity and community stability. American Naturalist. 103: 91–93.
Soulé, M. E. and Terborgh, J. 1999. Conserving nature at regional and continental scales: a scientific program for North America. BioScience. 49: 809–817.
Ünal, M. 2000. Notes on Orthoptera of Western Turkey, with description of a new genus and four new species. J. Orthoptera Res. 9: 89-102.
Yiğit, S. 2006. Analysis of the zooplankton community by the Shannon-Weaver Index in Kesikköprü Dam Lake, Turkey. Tarım Bilimleri Dergisi. 12: 216-220.