The effect of two ant species .i.Lasius niger./i. and .i.Lasius flavus./i. on soil properties in two contrasting habitats

0054925 - BC 2007 RIV FR eng J - Článek v odborném periodiku
Holec, Michal - Frouz, Jan
The effect of two ant species Lasius niger and Lasius flavus on soil properties in two contrasting habitats.
[Vliv dvou druhů mravenců Lasius niger a Lasius flavus na půdní podmínky na dvou odlišných stanovištích.]
European Journal of Soil Biology. Roč. 42, Suppl. 1 (2006), S213-S217. ISSN 1164-5563. E-ISSN 1778-3615.
[International Colloquium on Soil Zoology /14./. Mont-Saint-Aignan, 30.08.2004-03.09.2004]
Grant CEP: GA ČR(CZ) GA526/01/1055; GA AV ČR 1QS600660505
Výzkumný záměr: CEZ:AV0Z60660521
Klíčová slova: ants * soil chemistry * soil microbiology
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 0.875, rok: 2006

Ants significantly change the soil environment within the nest. The aim of this study is to contribute to ecology and thus the importance of two ant species Lasius niger, L. flavus in a post-mining landscape near the town of Sokolov in northwest Bohemia where both species are common. Chemical (total C, N, available P) and microbiological parameters (respiration, cellulose decomposition and direct counts of bacteria) were investigated in both ant species in two different habitats: a tertiary clay heap after brown coal mining with a weakly developed organic layer and semi natural meadows with well developed organic horizons. Total C and N in the L. flavus mound was lower than in the surrounding soil in both stands, the same was true for total N in L. niger on the heaps. L. niger nests in both sites were significantly enriched by available P. A litter bag test with cellulose indicated lower decomposition in the ant nest in comparison with the surrounding soil.

Byl studován vliv dvou druhů mravenců Lasius niger, Lasius flavus na půdní podmínky na výsypkách po těžbě hnědého uhlí a na loukách v okolí výsypek. Vliv na půdu se liší jak mezi druhy, tak mezi stanovišti. Například počty bakterií u L. flavus jsou v mraveništi vždy nižší než v okolní půdě, naproti tomu u L. niger jsou nižší počty u hnízd v luční půdě a vyšší u hnízd na výsypkách.
Trvalý link: http://hdl.handle.net/11104/0142816