Quantifying species–environment relationships in non-marine Ostracoda for ecological and palaeoecological studies: Examples using Iberian data

Mezquita, Francesc; Roca, Javier García; Reed, Jane M.; Wansard, G.

doi:10.1016/j.palaeo.2004.02.052

Cited by 123 publications

(93 citation statements)

References 51 publications

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“…Several datasets of extant ostracods record the ostracod assemblage of different lakes (e.g., Mezquita et al, 2005;Bunbury & Gajewski, 2005;Forester et al, 2005;Viehberg, 2006;Mischke et al, 2007), and from some of the databases, transfer functions of ostracod assemblages and environmental parameters (mainly water salinity and temperature) were established for quantitative paleoenvironmental reconstructions. It should be noted, however, that some datasets contain the ostracod assemblage recorded in a single sample from one lake.…”

Section: Introductionmentioning

confidence: 99%

Similar distribution pattern of different phenotypes of Limnocythere inopinata (Baird) in a brackish-water lake in Inner Mongolia

et al. 2010

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It has been recognized long ago that Limnocythere inopinata is a widely distributed ostracod and comprises various phenotypes. The taxonomy of the different phenotypes and their ecological differences, however, are still under debate. In this study, we investigated the relationships between ostracod distribution, water depth, and the substrate based on the analyses of species composition, abundance, and age structure of ostracods in 51 surface-sediment samples from Dali Lake in Inner Mongolia in order to reveal the distribution pattern and habitat characteristics of the ostracods. The identification of a total of 32,182 valves indicates that the dominant ostracod in Dali Lake is L. inopinata, which includes unnoded, 1-, 2-and 3-node and 1-carina phenotypes. The distribution of L. inopinata is affected both by the water depth and by the sand content of the substrate, and the phenotypes show their maximum abundances in the intermediate zone of the lake. All the phenotypes of L. inopinata display a similar preference for water depth and substrate, implying that the occurrence of different phenotypes is controlled by other factors. The age structure of L. inopinata is mainly related to the sand content, with the percentage of adults increasing and that of early juveniles decreasing with increasing sand content. Our data suggest that the occurrence of L. inopinata is closely related to water depth and substrate grain size, and different phenotypes of L. inopinata respond in a similar pattern to water depth and substrate.

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Section: Introductionmentioning

confidence: 99%

Similar distribution pattern of different phenotypes of Limnocythere inopinata (Baird) in a brackish-water lake in Inner Mongolia

et al. 2010

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“…Cladocerans and ostracodes are the most important groups of crustaceans in paleolimnological studies because their body segments preserve well in lacustrine sediments. Once their modern ecological requirements are known, ostracodes can be used to quantitatively reconstruct past environmental variables such as conductivity (Mischke et al, 2010), temperature, water chemical composition (Mezquita, Roca, Reed, & Wansard, 2005) and water depth (Pérez et al, 2010a(Pérez et al, , 2011. This is only possible if species are well identified, and by establishing large local training sets (calibration data), that allows a good knowledge of the species ecological preferences (Viehberg, & Mesquita-Joanes, 2012).…”

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confidence: 99%

Ostrácodos no-marinos de lagos en el altiplano este-centro de México

Pérez

Lozano‐García

Caballero

2015

RBT

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Abstract:The ostracode fauna of the neartic-neotropical transitional zone has remained poorly known until this study. Ten ostracode species inhabit ten highland lakes (five maar lakes (phreatic/phreato-magmatic explosion origin), one volcanic-tectonic lake, three natural dams and one man-made dam) in East-central Mexico. Surface sediments from the deepest part and the littoral zone from all studied lakes were collected. Environmental variables (pH, temperature, dissolved oxygen, conductivity, TDS) were measured in situ and parallel water samples for chemical analysis were collected for habitat description. Widely distributed species in the study area (≥5 lakes) include Cypridopsis vidua, Darwinula stevensoni and Eucandona cf. patzcuaro. Limnocytherina axalapasco is an endemic species and was collected in three maar lakes and in one man-made dam. Rare species included: Chlamydotheca arcuata?, Fabaeformiscandona acuminata?, Ilyocypris gibba?, Limnocythere friabilis?, Potamocypris smaragdina? and Potamocypris unicaudata?. Highest species richness (6 spp.) was found in the large and shallow Lake Metztitlán (2.6km 2 , 5.5m deep), with the lake water type HCO 3 ->>SO 4 2->Cl ---Ca 2+ >Na + >Mg 2+ . The rest of studied lakes (<63m, <27km 2 ) had not more than three species. For instance, only two ostracode species were collected in Lake Alchichica, which is the largest, deepest and most saline studied maar lake. Rev. Biol. Trop. 63 (2): 401-425. Epub 2015 June 01.

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“…The distributions of ostracods in water bodies are largely controlled by the salinity and, more specifically by the solute composition of the water (Neale 1988;Mezquita et al 2005;Mischke et al 2010Mischke et al , 2012 (Mezquita et al 1999;Anadón et al 2009Anadón et al , 2012Mischke et al 2012). Thus, the shift in predominance from Ilyocypris to Cyprideis indicates a hydrochemical change in the lake, which correlates well with the rapid increase in evaporite minerals such as gypsum and halite at the bottom of Unit 2 (Fig.…”

Section: Paleohydrologic Variations In the Lakementioning

confidence: 99%

Intensified aridity in the Qaidam Basin during the Middle Miocene: constraints from ostracod, stable isotope, and weathering records

Song

Wang

et al. 2017

Can. J. Earth Sci.

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The thick and continuous Cenozoic successions in the Qaidam Basin provide an excellent paleoclimate archive. Here, we focus on the ostracod fauna, stable isotope records, and paleoweathering indices from a well-dated Cenozoic sedimentary section in the Qaidam Basin, to develop an understanding of Middle Miocene aridification in central Asia. Microfossil analyses suggest that the ostracod species diversity decreased suddenly after 13.3 Ma, and that the dominant ostracod genus shifted from Ilyocypris to Cyprideis. Stable isotope data from ostracod valves have displayed abrupt positive shifts of 3.75‰ in δ18O values and 5.28‰ in δ13C values since 13.3 Ma. The chemical index of weathering (CIW) and K2O/Na2O ratios decrease markedly after 13.3 Ma, reflecting a significant decrease in chemical weathering intensity. These combined and consistent observations suggest that the Qaidam Basin has experienced increased aridification since 13.3 Ma. The dating was obtained directly from previous magnetostratigraphic studies and can be correlated accurately with global climate evolution and regional tectonic events. A comparison of these results with global paleoclimatic records and previous geologic studies of the Tibetan Plateau revealed that global cooling, rather than uplift of the Tibetan Plateau, played a key role in the drying of the Qaidam Basin at approximately 13 Ma.

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Quantifying species–environment relationships in non-marine Ostracoda for ecological and palaeoecological studies: Examples using Iberian data

Cited by 123 publications

References 51 publications

Similar distribution pattern of different phenotypes of Limnocythere inopinata (Baird) in a brackish-water lake in Inner Mongolia

Similar distribution pattern of different phenotypes of Limnocythere inopinata (Baird) in a brackish-water lake in Inner Mongolia

Ostrácodos no-marinos de lagos en el altiplano este-centro de México

Intensified aridity in the Qaidam Basin during the Middle Miocene: constraints from ostracod, stable isotope, and weathering records

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