Snow vole (Chionomys nivalis Martins) affects the redistribution of soil organic matter and hormone-like activity in the alpine ecosystem: ecological implications
Diego Pizzeghello, Stefania Cocco, Ornella Francioso, Erika Ferrari, Alessandra Cardinali, Serenella Nardi, Alberto Agnelli and Giuseppe Corti
Article first published online: 29 SEP 2015 | DOI: 10.1002/ece3.1727
Bioturbated and regular soils contain a poorly decomposed SOM, but HA and FA with a well defined molecular structure. Burrowing activity determines a redistribution of organics throughout the profile with a relatively high auxin-like activity in the FA from straw tunnel wall (STW) and gibberellin-like activity in the HA from vole faeces VF. The relative high presence of carboxylic acids, amides, proteins and aminoacids in the FA from STW and the aromatic moieties in the HA from VF put evidences for their different behavior.