Distribution, ecological tolerance and optimum levels of freshwater Ostracoda (Crustacea) from Diyarbakır, Turkey

Külköylüoğlu, Okan; Akdemi̇r, Derya; Yüce, Rikap

doi:10.1007/s10201-011-0357-1

Cited by 10 publications

(4 citation statements)

References 35 publications

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“…As shown in Table 3, especially cosmopolitan species (e.g., H. incongruens, C. neglecta, I. bradyi, P. olivaceus, H. salina) have high tolerance levels when we compared with others. Having high tolerance levels allow them to adapt unsteady environment and contribute to their wide ranges for different variables (e.g., pH, dissolved oxygen, conductivity) they tolerate (Külköylüoğlu et al 2012a). For example, P. olivaceus and C. ophtalmica had highest (6.34) and lowest (0.65) tolerance levels for water temperature and their ranges (optimum ± tolerance levels) are like that 9.16-21.84 and 17.21-18.51°C, respectively (Table 3).…”

Section: Discussionmentioning

confidence: 99%

“…The effect of elevation is a longterm debate in the literature. Some studies stated that elevation was a limiting factor for ostracods (e.g., Mezquıta et al 1999, Pıerı et al 2009, zooplankton (Shehu et al 2009) and avian species (Şekercİoğlu et al 2008) but others (e.g., Laprıda et al 2006, Külköylüoğlu et al 2012a, Guo et al 2013, Yavuzatmaca et al 2015 did not support this idea. The elevational limitation of vectors (e.g., birds) that contributes to the dispersion of ostracods to long distance may allow to any one say that elevation is a secondary factor (Martınez-Garcıa et al 2015, Yavuzatmaca et al 2015 limits the passive distribution of ostracods.…”

Section: Introductionmentioning

confidence: 99%

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On the relationship between the occurrence of ostracod species and elevation in Sakarya province, Turkey

Yavuzatmaca¹,

Külköylüoğlu²,

Akdemi̇r³

et al. 2018

Acta Zool Acad Sci H

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In order to determine the distribution of ostracods species between sea level and 1133 m a.s.l. in the Sakarya Province of Turkey, 83 different aquatic sites were randomly sampled during 9-12 May, 2014. This sampling yielded a total of 9598 individuals belonging to 33 taxa (31 living). The species Vestalenula cuneata and Kovalevskiella phreaticola were new reports for Turkey. The number of species with males (19) and without males (12) tends to decrease with increasing elevation while there is no significant difference in the number of species per site. This corresponds to a decrease in the numbers of species with (14) and without (17) natatory setae on second antennae (A2). Accordingly, presence of species with/ without natatory setae on A2, with different reproductive modes, and numbers of species changed along with elevation seem to be all mutually independent in the population sampled. The first two axes of Canonical Correspondence Analysis explained 74.4% of relationships between species and environmental variables. Furthermore, two well-known cosmopolitan species (Heterocypris incongruens and Ilyocypris bradyi) were observed in almost all of the elevational ranges. Overall, these results support the prediction that elevation seems to have no direct influence on the presence of species with or without swimming setae in sexual or parthenogenetic populations. Results suggest that unlike non-cosmopolitan ostracods, species with cosmopolitan characteristics may not be limited by elevation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the relationship between the occurrence of ostracod species and elevation in Sakarya province, Turkey

Yavuzatmaca¹,

Külköylüoğlu²,

Akdemi̇r³

et al. 2018

Acta Zool Acad Sci H

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“…During the present study, the species showed minimum tolerance value for pH and optimum value for Tw and salinity while maximum optimum value was calculated for SHE. Külköylüoğlu, Akdemir, and Yüce (2011) estimated a high tolerance of the species to salinity while Külköylüoğlu and Sarı (2012) displayed a positive correlation to SHE value. Our results suggest that both species have relatively low tolerance (under the mean tolerance value) values for some variables (Sal, Ca +2 , Cl −1 , Tw) in the shallow waters of Malatya.…”

Section: Discussionmentioning

confidence: 99%

Effective roles of ecological factors on nonmarine Ostracoda (Crustacea) in shallow waters of Malatya (Turkey)

Batmaz

Külköylüoğlu

Akdemi̇r

et al. 2020

Ecological Research

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This study is aimed to understand effective roles of ecological factors on nonmarine ostracods in Malatya province where 125 different aquatic bodies were randomly sampled during 3-10 August 2015. Totally, 24 of 25 species identified were new reports for the province while Cypridopsis lusatica was a new record for Turkey. The most common species Ilyocypris bradyi was collected from 12 different habitat types. Fifteen species based on their percent similarities among habitat types were clustered into five groups. The first two axes of Canonical Correspondence Analyses explained 66.1% relationship between species and environmental variables. Salinity, water temperature and chloride were found to be the most effective variables on species occurrence. Except chloride and oxidation-reduction potential, there was no significant difference in the mean numbers of environmental variables among the sampling sites with and without species (p < .05). Five most abundant species portrayed the highest ecological tolerance ranges for water temperature. Heterocypris incongruens revealed the highest optimum and tolerance range for dissolved oxygen while Heterocypris salina showed maximum ranges for salinity.Increasing numbers of sampling sites did not increase the percent species numbers per site. Species distribution varied among the habitats. Accordingly, species with swimming ability tend to inhabit more stagnant water bodies while species without such ability were found in flowing waters. This implies that species with good dispersion modes may avoid negative effects of changes in ecological conditions. Thus, our results reveal that biotic factors can also be effective on species as much as abiotic ones.

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“…At the regional scale, the observed variation is partly organised along altitude, latitude, and water temperature. Van der Meeren et al (2010), Stoch et al (2011), andKülköylüo! glu et al (2012a) stressed the importance of altitude for ostracod community composition.…”

Section: Discussionmentioning

confidence: 99%

Biogeography and relevant ecological drivers in spring habitats: A review on ostracods of the Western Palearctic

Rosati

Cantonati

Primicerio

et al. 2014

Internat. Rev. Hydrobiol.

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Springs are relevant environments from an ecological point of view. The microhabitat‐mosaic structure of these ecotones often harbors high biodiversity. Due to the temperature stability of permanent springs and to the persistence over geological time scales of their aquifers, these environments may act as refugia and as potential speciation sites for aquatic fauna. In this study, we review the current knowledge on the diversity and distribution of ostracods associated with ambient springs in the Western Palearctic area, and on the ecological factors that have been reported to affect their occurrence. Literature mining revealed 37 papers, allowing to gather information on 92 ostracod taxa belonging to 31 genera, found in 612 springs out of a total of 743. More detailed information available from 20 studies carried out in the Central‐Eastern Alps and Northern Apennines allowed us to conduct a focus study on a more restricted geographic area. Several species have very low frequency, occurring in just one or two springs. Rare or endemic species were frequent, whilst only one non‐native species (Chlamydoteca incisa) was found. Species richness varied from 1 to 9, and it was greater in pool springs than in flowing springs and seepages. Correspondence analysis on the presence‐absence data unveiled biogeographical patterns in spring ostracod community composition. The variation in community composition was partly organised along altitudinal, latitudinal, water‐temperature, and conductivity gradients, and spring typologies affected assemblage structure as well. Springs are important areas for biodiversity conservation at the continental and regional scale. Nevertheless, relatively few investigations have dealt with the human impacts on springs and their biota, and conservation guidelines are largely missing.

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Distribution, ecological tolerance and optimum levels of freshwater Ostracoda (Crustacea) from Diyarbakır, Turkey

Cited by 10 publications

References 35 publications

On the relationship between the occurrence of ostracod species and elevation in Sakarya province, Turkey

On the relationship between the occurrence of ostracod species and elevation in Sakarya province, Turkey

Effective roles of ecological factors on nonmarine Ostracoda (Crustacea) in shallow waters of Malatya (Turkey)

Biogeography and relevant ecological drivers in spring habitats: A review on ostracods of the Western Palearctic

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