Freshwater ostracods (Crustacea) of Gaziantep (Turkey) and their habitat preferences according to movement ability

Akdemi̇r, Derya; Külköylüolu, Okan; Yavuzatmaca, Mehmet; Sari, Necmettin

doi:10.1127/fal/2016/0665

Cited by 21 publications

(12 citation statements)

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“…Spatial processes affecting species compositions go beyond mere distances. The structure of local communities may not only reflect the connectivity among the habitats (Cottenie & De Meester, ; Doi et al., ), landscape structure (Juračka et al., ; Michels et al., ) and dispersal capability of the studied organisms (Akdemir et al., ; Incagnone et al., ; Shurin, Cottenie, & Hillebrand, ), but also the spatial structure of environmental characteristics (Koenig, ; Peres‐Neto & Legendre, ) and dispersal‐mediated biological interactions (Verreydt et al., ). Identification of the mechanisms leading to spatial structuring is therefore not straightforward, especially in field studies (Ng, Carr, & Cottenie, ).…”

Section: Discussionmentioning

confidence: 99%

“…Previous analyses of freshwater metacommunities at different spatial scales have revealed that their structuring can be strongly influenced by the dispersal mode of the studied taxa (e.g., Akdemir, Külköylüolu, Yavuzatmaca, & Sari, ; De Bie et al., ; Santos, Silva, Branco, & Huszar, ) and by the character of the landscape and connectivity of individual patches (Michels et al., ; Van De Meutter, Stoks, & De Meester, ), even within a single large lake ecosystem (Tolonen et al., ). The dispersal of freshwater invertebrates is particularly variable, as it includes both active (e.g., flying or swimming) and passive modes, and the latter can be mediated by abiotic (wind, water flow) as well as biotic vectors (animals such as birds, mammals, amphibians and invertebrates); see reviews by Bilton, Freeland, and Okamura () and Incagnone, Marrone, Barone, Robba, and Naselli‐Flores ().…”

Section: Introductionmentioning

confidence: 99%

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Spatial context strongly affects community composition of both passively and actively dispersing pool invertebrates in a highly heterogeneous landscape

et al. 2019

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The spatial distribution of suitable habitats and dispersal abilities of the constituent taxa jointly affect the structure of metacommunities in standing freshwaters. Most studies exploring spatial effects on aquatic metacommunities, however, focus on at most a few taxonomic groups. Within two consecutive seasons, we studied spatial patterns in the species richness and composition of three passively dispersing and three actively flying freshwater invertebrate groups (rotifers, microcrustaceans and molluscs vs. hemipterans, aquatic beetles and odonates) in a metacommunity system consisting of 42 newly or recently created fishless pools in a highly heterogeneous Central European sandstone landscape consisting of deep valleys and steep ridges. We hypothesized that the extent to which these dispersal barriers affect invertebrate groups depends on their dispersal mode, and that the ability of each group to colonize new habitats is affected by the landscape morphology. Moreover, we predicted that the history and age of the pools would play a major role in structuring of invertebrate communities. Following the classical island biogeography pattern, habitat size (measured as pool surface area or depth) was the key characteristic influencing species richness for each of the six studied groups (range of explained variation: 10%–58.7%). The number of nearby aquatic habitats (i.e., potential colonization sources) was also an important determinant of species richness for molluscs (18.8%), crustaceans (36.4%) and aquatic beetles (27.2%). After pool size, the most important factor influencing species richness was the presence and functional composition of aquatic macrophytes in the pools, which affected the species richness of odonates (25.2%), aquatic beetles (12.2%), rotifers (11.1%), and crustaceans (8.3%). Valley distances between localities, defined as the shortest distance that avoids crossing steep ridges, explained consistently slightly more variation in species composition (2.6%–12.6%) than did Euclidean distances (1.0%–10.1%) for all six groups. Spatial variables (the valley distance matrix, position of pools within clusters in the landscape, and the number of nearby aquatic habitats) explained more variation in species composition (3.4%–25.4%) than local pool characteristics (2.8%–9.4%) or temporal variation (0%–7.6%) in all taxa except hemipterans, whose species composition was almost equally affected by local (3.3%) and spatial factors (3.4%). We conclude that landscape‐level spatial structure in our study area affects the dispersal and metacommunity assembly of both actively and passively dispersing invertebrates more than studied pool characteristics or temporal variation. The observed congruence between groups with different dispersal modes is likely because flying insects follow similar dispersal routes as the key animal vectors of passive dispersers. Our study highlights the importance of including relevant topography features in studies of aquatic metacommunities in complex and heterogeneous landsc...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial context strongly affects community composition of both passively and actively dispersing pool invertebrates in a highly heterogeneous landscape

et al. 2019

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“…Hence, comparing to the other areas with similar habitat types (e.g., cf. Akdemir and Külköylüo glu, 2014;Külköylüo glu et al, 2012bKülköylüo glu et al, , 2019Yavuzatmaca et al, 2015Yavuzatmaca et al, , 2018Yavuzatmaca et al, 2017;Akdemir et al, 2016), this number indicates relatively high ostracod diversity for this area. However, we believe that this number is most likely underestimated because of at least two possible factors.…”

Section: Discussionmentioning

confidence: 97%

“…One may also consider the fact that these common species have relatively wide tolerance ranges for many environmental variables. The advantage of having such tolerance ranges for the species likely increases their chances of survival (Akdemir et al, 2016) and the probability of occurrence within broad distributional patterns from low to high altitudes (Külköylüo glu et al, 2019). Thereby, species with high tolerances may not be widely affected by changes in environmental factors and may not show sudden reactions to those changes within their tolerance ranges.…”

Section: Discussionmentioning

confidence: 99%

Correlational analyses of the relationships between altitude and carapace size of Ostracoda (Crustacea)

Dalgakıran

Külköylüoğlu

Yavuzatmaca

et al. 2020

Ann. Limnol. - Int. J. Lim.

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To explore the relationship between ostracods carapace (body) size and altitude, 117 non-marine aquatic habitats were sampled from Mersin province (Turkey) during 03–09 October 2015. A total of 36 species and 14 sub-fossils were detected from 66 of 117 sites located between −3 m and 1630 m a.s.l. Thirty-four of the species are previously unknown in the province. In addition, four of the taxa were new records for the Turkish Ostracoda fauna. Five species (Ilyocypris bradyi, Heterocypris salina, H. incongruens, Psychrodromus olivaceus, Potamocypris fallax) were the most common among all habitats with relatively wide ecological and altitudinal ranges. Canonical correspondence analyses revealed 72.6% of the relationship between 12 ostracods and five environmental variables. Water temperature and pH were the two most influential variables (p < 0.05) on the species. The mean length of right and left valves of the species were significantly different (p < 0.01, N = 3980) at all altitudinal ranges. A strong tendency of changes in valve height with increasing altitude seems to be more prominent (p < 0.05) than the changes in length for some species. Our results do not support some ecological rules but rather, suggest that a linear relationship between carapace size and altitude may only be applicable for some ostracods.

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“…Anatolia has a variety of actual aquatic bodies (e.g., lakes, ponds, streams, etc.) where different recent (live) non-marine ostracods were recovered (Külköylüoğlu et al 2014;Akdemir et al 2016;Yavuzatmaca et al 2015Yavuzatmaca et al , 2017. Besides the importance of these habitats for recent evaluations, their remnants may involve significant data on ancient conditions.…”

Section: Introductionmentioning

confidence: 99%

Holocene paleoenvironmental evolution of the Acıgöl paleo maar lake (Nevşehir, Central Anatolia)

et al. 2019

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Acıgöl (Nevşehir, Central Anatolia) is a drained crater lake. Acıgöl maar was formed by the violent vapor explosions due to the interaction of hot rhyolitic magma with the (sub-)surface water during the latest Pleistocene. A 844 cm-deep borehole was drilled at the maar and 713 cm-thick Acıgöl Core Succession (ACS) was retrieved. The ACS is mainly composed of lower laminated and upper non-laminated mudstones (sandy, silty, and clayey) with rare organic and volcanic interlayers. Eleven ostracod taxa (Cypris pubera, Plesiocypridopsis newtoni, Heterocypris salina, Eucypris cf. heinrichi, Candona candida, Candona meerfeldiana, Pseudocandona marchica, Cyclocypris sp., Ilyocypris bradyi, Limnocythere inopinata, and Darwinula stevensoni) were determined in this study. Along with ostracods, gastropods (Gyraulus piscinarum and Stagnicola sp.), pelecypods (Pisidium personatum), charophytes, and fish remains were also observed, while diatoms are the most frequent and abundant assemblage of the ACS. The assemblage at the lower parts of ACS mainly indicates wetter, freshwater to oligohaline, and oligotrophic and relatively deep lacustrine conditions alternating with short lake shrinkage intervals. On the other hand, the fauna at the upper part of the ACS points out to saline, shallow, and warmer lacustrine conditions.

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Freshwater ostracods (Crustacea) of Gaziantep (Turkey) and their habitat preferences according to movement ability

Cited by 21 publications

References 0 publications

Spatial context strongly affects community composition of both passively and actively dispersing pool invertebrates in a highly heterogeneous landscape

Spatial context strongly affects community composition of both passively and actively dispersing pool invertebrates in a highly heterogeneous landscape

Correlational analyses of the relationships between altitude and carapace size of Ostracoda (Crustacea)

Holocene paleoenvironmental evolution of the Acıgöl paleo maar lake (Nevşehir, Central Anatolia)

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