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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F08%3A00306459%21RIV09-AV0-60077344
rdf:type
n7:Vysledek skos:Concept
dcterms:description
We manipulated Collembola Folsomia candida Willem density and observed the density effect on carbon and nitrogen mineralization and on nematodes in microcosms filled with mineral soil. Collembolan densities were 0 (control), 25 (low), 100 (medium), and 400 (high) individuals per microcosm. The Collembola enhanced soil respiration and nitrogen mineralization rate in a density-dependent manner (p<0.05). The correlation between collembolan density and the metabolic quotient of microbes, qCO2, was weakly positive (r=0.44, p<0.05). Collembola did not affect microbial biomass. These results suggested that enhanced carbon and nitrogen mineralization was an indirect effect of Collembola mediated by increased microbial activity. Collembola changed the Cnema/Cmic ratio, but only when present at the low density. Thus, Collembola had both positive and negative effects on the nematode population. We manipulated Collembola Folsomia candida Willem density and observed the density effect on carbon and nitrogen mineralization and on nematodes in microcosms filled with mineral soil. Collembolan densities were 0 (control), 25 (low), 100 (medium), and 400 (high) individuals per microcosm. The Collembola enhanced soil respiration and nitrogen mineralization rate in a density-dependent manner (p<0.05). The correlation between collembolan density and the metabolic quotient of microbes, qCO2, was weakly positive (r=0.44, p<0.05). Collembola did not affect microbial biomass. These results suggested that enhanced carbon and nitrogen mineralization was an indirect effect of Collembola mediated by increased microbial activity. Collembola changed the Cnema/Cmic ratio, but only when present at the low density. Thus, Collembola had both positive and negative effects on the nematode population. Práce popisuje vliv chvostoskoků na aktivitu nematod a mikroorganismů a význam těchto interakcí pro mineralizaci C a N.
dcterms:title
Chvostoskoci ovlivňují mineralizaci uhlíku a dusíku v půdě prostřednictvím svého vlivu na aktivitu nematod a mikroorganismů Collembolans feeding on soil affect carbon and nitrogen mineralization by their influence on microbial and nematode activities Collembolans feeding on soil affect carbon and nitrogen mineralization by their influence on microbial and nematode activities
skos:prefLabel
Collembolans feeding on soil affect carbon and nitrogen mineralization by their influence on microbial and nematode activities Collembolans feeding on soil affect carbon and nitrogen mineralization by their influence on microbial and nematode activities Chvostoskoci ovlivňují mineralizaci uhlíku a dusíku v půdě prostřednictvím svého vlivu na aktivitu nematod a mikroorganismů
skos:notation
RIV/60077344:_____/08:00306459!RIV09-AV0-60077344
n4:aktivita
n16:Z
n4:aktivity
Z(AV0Z60660521)
n4:cisloPeriodika
3
n4:dodaniDat
n6:2009
n4:domaciTvurceVysledku
Kaneda, Satoshi
n4:druhVysledku
n11:J
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n13:predkladatel
n4:idSjednocenehoVysledku
360357
n4:idVysledku
RIV/60077344:_____/08:00306459
n4:jazykVysledku
n5:eng
n4:klicovaSlova
Collembola; mineral soil; nitrogen mineralization
n4:klicoveSlovo
n10:nitrogen%20mineralization n10:Collembola n10:mineral%20soil
n4:kodStatuVydavatele
NL - Nizozemsko
n4:kontrolniKodProRIV
[378E93BDAF26]
n4:nazevZdroje
Biology and Fertility of Soils
n4:obor
n12:EH
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
2
n4:rokUplatneniVysledku
n6:2008
n4:svazekPeriodika
44
n4:tvurceVysledku
Kaneko, N. Kaneda, Satoshi
n4:wos
000252190900003
n4:zamer
n9:AV0Z60660521
s:issn
0178-2762
s:numberOfPages
8