2011
The wave towards a new steady state: effects of earthworm invasion on soil microbial functions
EISENHAUER, Nico; Jiří SCHLAGHAMERSKÝ; Peter B. REICH a Lee E. FRELICHZákladní údaje
Originální název
The wave towards a new steady state: effects of earthworm invasion on soil microbial functions
Autoři
EISENHAUER, Nico; Jiří SCHLAGHAMERSKÝ; Peter B. REICH a Lee E. FRELICH
Vydání
Biological Invasions, Springer, 2011, 1387-3547
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.896
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/11:00053334
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova anglicky
ecosystem change; exotic earthworms; forest floor; microbial biomass; microbial respiration; northern hardwood forests
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 4. 2013 14:08, Ing. Andrea Mikešková
Anotace
V originále
Earthworms are ecosystem engineers that cause a long cascade of ecological effects when invading earthworm-free forests. The consequences for soil microbial functions are poorly understood. We used two invasion fronts of European earthworms in northern North American hardwood forests in order to investigate three stages: uninvaded, the front of invasion and invaded at least 10 years previously. Soil microbial biomass, respiration and metabolic quotient were measured. Earthworms had marked effects on soil microbial biomass and respiration. Impacts were most pronounced at the leading edge of the invasion front, decreasing soil microbial C use efficiency, most likely due to the disturbance of the microbial community by water stress. Based on these results, we hypothesize that effects of earthworm invasion on native soil ecosystem functioning are most pronounced at the peak of the invasion wave. Thereafter, ecosystems possibly enter a new steady state with altered biotic compositions and functions.
Návaznosti
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