Coarse Woody Debris as Microhabitats of Soil Macrofauna in Polluted Areas
| Autor: | E. L. Vorobeichik, A. I. Ermakov, D. V. Nesterkova, M. E. Grebennikov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Dendrodrilus rubidus Pollution Soil test biology Ecology media_common.quotation_subject Earthworm Heavy metals biology.organism_classification 010603 evolutionary biology 01 natural sciences General Biochemistry Genetics and Molecular Biology 03 medical and health sciences 030104 developmental biology Abundance (ecology) Litter Coarse woody debris General Agricultural and Biological Sciences media_common |
| Zdroj: | Biology Bulletin. 47:87-96 |
| ISSN: | 1608-3059 1062-3590 |
| DOI: | 10.1134/s1062359020010173 |
| Popis: | We built a map of the distribution of earthworm abundance in coniferous forests in the area affected by long-term emissions from the Middle Ural Copper Smelter. It is established that a “lumbricide desert” of about 65 km2 without earthworms in the forest litter and soil mineral horizons has been formed near the smelter due to extremely high concentrations of heavy metals. However, we have also found that earthworms (only Dendrodrilus rubidus tenuis) inhabit logs of the late stages of decomposition in this area. Their abundance is comparable to that in the soil of unpolluted (background) areas; single individuals (including cocoons) were also found in the soil directly under the logs. Gastropods, which are absent in standard soil samples in this area, were also recorded in these logs (five species). We suppose that the presence of such “survival microsites” may serve as a mechanism of recolonization of polluted areas by groups sensitive to pollution after the reduction of emissions, followed by a decrease in soil toxicity. |
| Databáze: | OpenAIRE |
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