Atıf İçin Kopyala
Müller-Hofstede D., Külköylüoğlu O.
JOURNAL OF LIMNOLOGY AND FRESHWATER FISHERIES RESEARCH, cilt.7, sa.1, ss.1-13, 2021 (Hakemli Dergi)
Özet
To understand the possible effects of changes in ambient temperature on spatial distribution and ecology of ostracods, samples were randomly collected from 70 aquatic sites with 12 different habitat types from Hatay (Turkey) province during the summer season of 2012. 14 of 19 ostracod species were newly reported for the province. The first two axes of CCA explained 79.7% of the cumulative variance of the relationship between the 12 most common species and five environmental variables. Accordingly, water temperature and electrical conductivity were the most effective factors on species occurrences (p<0.05). Estimating ecological optimum and tolerance values of species revealed that Herpetocypris chevreuxi and Cypridopsis vidua displayed the lowest and highest tolerance values for water temperature, respectively. TWINSPAN results illustrated that ostracod species can be used to determine characteristics of habitat conditions. Indeed, the co-occurrence of H. chevreuxi with one or more cosmopolitan species is the indication of an increase in salinity and temperature values. Results suggested that temperature changes can cause critical alteration in shallow water bodies where species with lower ecological tolerances will eventually be negatively affected. Therefore, such species, which may be called “potential candidate species for local extinction” will either be eliminated from the habitats in short term or become extinct in long term.