Comparison of Ostracoda (Crustacea) species diversity, distribution and ecological characteristics among habitat types
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Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
E Schweizerbartsche Verlagsbuchhandlung
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
To understand the relationship between habitat differences and ostracod species diversity, distribution and ecological characteristics, eleven different habitat types (spring, creek, stream, lake, waterfall, cave, puddle, pond, reservoir, trough, irrigation canal) across 162 aquatic bodies were sampled from July to September of 2012 in the Karabuk and Duzce regions of Turkey. A total of 36 (Karabuk) and 30 (Duzce) ostracod taxa were found from 148 out of 162 sites. All taxa are newly reported for Karabuk whereas 16 species are new for Duzce. In Duzce, total numbers of species and sites were higher at altitudes 0-400 m and lower at altitudes 401-1200 m a.s.l. than in the Karabuk region. However, they were equal at altitudes 1201-1400 m. Most species were found in troughs followed by streams, springs and ponds. Canonical Correspondence Analysis explains about 74 % of the relationships between species and environmental variables in both regions where water temperature was a significant (p < 0.01) predictor explaining the variance of ostracods assemblages. The most common five species (Candona neglecta, Heterocypris incongruens, H. salina, Ilyocypris bradyi, Psychrodromus olivaceus) with 4534 individuals comprise more than 67% of the total abundance of all living ostracod species in both regions. Heterocypris incongruens showed the highest values of ecological optimum and tolerance for electrical conductivity and dissolved oxygen. Based on the occurrence patterns, UPGMA showed five clustering associations among the species. Results suggest that species habitat preferences may depend both on species ecological tolerance and optimum values and on the suitability of conditions in each of the habitat types sampled.
Açıklama
Anahtar Kelimeler
Distribution, Diversity, Ecological Tolerance, Optimal Values, Habitat Type, Ostracoda
Kaynak
Fundamental And Applied Limnology
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
190
Sayı
1
