Oribatid mite communities along an elevational gradient in Sairme gorge (Caucasus)

Experimental & Applied Acarology
Levan MumladzeMeri Salakaia

Abstract

Many aboveground animals and plant communities have been studied along elevational gradients whereas studies on soil animals are scarce. Here, we studied oribatid mite community distribution along an elevational gradient from 600 to 2200 m in forest ecosystems of the Western Lesser Caucasus Mountains in Georgia. Overall, 86 oribatid mite species were found at the study sites. Oribatid mite densities were generally low (~9800 ind./m(2)), and 74% of all species reproduced sexually indicating that resource conditions at the study sites are generally poor. Oribatids mainly comprised Brachypylina (76%), Mixonomata (13%), Desmonomata (6%) and Enarthronota (5%). Oribatid mite community structure changed along the elevational gradient and the changes correlated with temperature, pH, litter thickness and density of the herb layer. The dominance of sexually reproducing taxa and low overall abundance indicate that the studied elevational gradient is characterized by poor resource conditions for soil microarthropods. Oribatid mite species richness and density declined with elevation suggesting that decreasing temperature in concert with resource limitation is a main driver of oribatid mite communities whereas stochastic factors (such as mi...Continue Reading

References

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Citations

Jul 19, 2017·Experimental & Applied Acarology·Levan MumladzeMark Maraun
May 25, 2021·Saudi Journal of Biological Sciences·Rawhat Un NisaAli Asghar Shah

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