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Statements

Subject Item
n2:RIV%2F60077387%3A_____%2F00%3A62003023%21RIV%2F2003%2FAV0%2FA62003%2FN
rdf:type
skos:Concept n15:Vysledek
dcterms:description
With increasing trophic status, a higher portion of bacterial production was consumed by ciliates, accounting for 40 and 50 of the total protistan bacterivory in dam reservoirs. Increases were attributable to the oligotrichs of the genus Halteria that often numerically dominate freshwater pelagic ciliate communities. The most important ciliate bacterivores in order of their decreasing importance were: oligotrichs (primarily Halteria spp.), peritrichs, and scuticociliates. Our results suggest that small halteriids are ecologically important bacterial consumers in meso to eutrophic freshwater systems due to: (i) an efficient uptake of prey over a large size spectrum, (ii) high clearance rates on picoplankton-sized particles, (iii) high potential growth rate, and (iv) a low vulnerability to metazooplankton predation. Correspondingly, we suggest a revised concept of planktonic ciliate bacterivory, where the principal role is attributed to small omnivorous filter-feeding oligotrichous ciliates. With increasing trophic status, a higher portion of bacterial production was consumed by ciliates, accounting for 40 and 50 of the total protistan bacterivory in dam reservoirs. Increases were attributable to the oligotrichs of the genus Halteria that often numerically dominate freshwater pelagic ciliate communities. The most important ciliate bacterivores in order of their decreasing importance were: oligotrichs (primarily Halteria spp.), peritrichs, and scuticociliates. Our results suggest that small halteriids are ecologically important bacterial consumers in meso to eutrophic freshwater systems due to: (i) an efficient uptake of prey over a large size spectrum, (ii) high clearance rates on picoplankton-sized particles, (iii) high potential growth rate, and (iv) a low vulnerability to metazooplankton predation. Correspondingly, we suggest a revised concept of planktonic ciliate bacterivory, where the principal role is attributed to small omnivorous filter-feeding oligotrichous ciliates.
dcterms:title
Ecological role and bacterial grazing of Halteria spp.: small freshwater oligotrichs as dominant pelagic ciliate bacterivores. Ecological role and bacterial grazing of Halteria spp.: small freshwater oligotrichs as dominant pelagic ciliate bacterivores.
skos:prefLabel
Ecological role and bacterial grazing of Halteria spp.: small freshwater oligotrichs as dominant pelagic ciliate bacterivores. Ecological role and bacterial grazing of Halteria spp.: small freshwater oligotrichs as dominant pelagic ciliate bacterivores.
skos:notation
RIV/60077387:_____/00:62003023!RIV/2003/AV0/A62003/N
n3:strany
43;56
n3:aktivita
n4:Z n4:P
n3:aktivity
P(GA206/96/0012), P(GA206/98/0727), P(GA206/99/0028), P(KSK2005601), Z(AV0Z6017912)
n3:cisloPeriodika
22
n3:dodaniDat
n12:2003
n3:domaciTvurceVysledku
n8:6252591 n8:7264798
n3:druhVysledku
n17:J
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
709474
n3:idVysledku
RIV/60077387:_____/00:62003023
n3:jazykVysledku
n16:eng
n3:klicovaSlova
N/A
n3:klicoveSlovo
n5:N%2FA
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[734F9BDF51B2]
n3:nazevZdroje
Aquatic Microbial Ecology
n3:obor
n11:EE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n14:GA206%2F96%2F0012 n14:KSK2005601 n14:GA206%2F98%2F0727 n14:GA206%2F99%2F0028
n3:rokUplatneniVysledku
n12:2000
n3:svazekPeriodika
22
n3:tvurceVysledku
Comerma, M. Armengol, J. Šimek, Karel Nedoma, Jiří Jürgens, K.
n3:zamer
n18:AV0Z6017912
s:issn
0948-3055
s:numberOfPages
14