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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F11%3A00053334%21RIV12-MSM-14310___
rdf:type
n8:Vysledek skos:Concept
dcterms:description
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. 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.
dcterms:title
The wave towards a new steady state: effects of earthworm invasion on soil microbial functions The wave towards a new steady state: effects of earthworm invasion on soil microbial functions
skos:prefLabel
The wave towards a new steady state: effects of earthworm invasion on soil microbial functions The wave towards a new steady state: effects of earthworm invasion on soil microbial functions
skos:notation
RIV/00216224:14310/11:00053334!RIV12-MSM-14310___
n8:predkladatel
n19:orjk%3A14310
n3:aktivita
n6:Z
n3:aktivity
Z(MSM0021622416)
n3:cisloPeriodika
10
n3:dodaniDat
n11:2012
n3:domaciTvurceVysledku
n14:7939787
n3:druhVysledku
n16:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
241554
n3:idVysledku
RIV/00216224:14310/11:00053334
n3:jazykVysledku
n17:eng
n3:klicovaSlova
ecosystem change; exotic earthworms; forest floor; microbial biomass; microbial respiration; northern hardwood forests
n3:klicoveSlovo
n4:microbial%20respiration n4:northern%20hardwood%20forests n4:forest%20floor n4:microbial%20biomass n4:exotic%20earthworms n4:ecosystem%20change
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[B151F45B25E0]
n3:nazevZdroje
Biological Invasions
n3:obor
n13:EH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n11:2011
n3:svazekPeriodika
13
n3:tvurceVysledku
Schlaghamerský, Jiří Frelich, Lee E. Eisenhauer, Nico Reich, Peter B.
n3:wos
000296350800004
n3:zamer
n5:MSM0021622416
s:issn
1387-3547
s:numberOfPages
6
n20:doi
10.1007/s10530-011-0053-4
n10:organizacniJednotka
14310