标题：Correlational patterns of species diversity, swimming ability and ecological tolerance of non-marine ostracoda (Crustacea) with different reproductive modes in shallow water bodies of ağrı region (Turkey)
摘要：A total of 52 ostracod taxa (35 live spp. 17 subfossils) were collected
from 70 shallow aquatic bodies with 11 different habitat
types in Agr ı province (Turkey). Fabaeformiscandona acuminata is
a new record for the Turkish ostracod fauna while 29 species
were new for the province. Three types of habitats (stream, ditch
and pond) contained the highest numbers of 24, 15, 11 species,
respectively. Species were clustered into four main groups based
on their distribution among habitats. Canonical Correspondence
Analysis was able to explain 73.9% of the correlation between the
18 most frequently found species and five environmental variables.
Water temperature and elevation were found to be the
most effective factors on ostracods. Species with and without
swimming setae tend to be found mostly in lentic and lotic habitats,
respectively. Besides, species with swimming setae showed
relatively higher ecological optimum and tolerance values for pH,
electrical conductivity and water temperature than species without
setae. The numbers of non-swimmer sexually reproducing
species were twice the number of parthenogenetic species.
Parthenogenetic species tend to have higher tolerance and optimum
values for different environmental variables than sexual species.
Results suggest a strong correlation among reproductive
modes, swimming ability and ecological tolerances of the species.
关键词：Active-passive distribution ; adaptive value ; ecology ; habitat type ; new report
