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Statements

Subject Item
n2:RIV%2F60076658%3A12310%2F12%3A43884206%21RIV13-MSM-12310___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
Benthic algae were used to identify reference conditions of springs for bioassessment purposes. Benthic algae and environmental factors were quantified in 70 springs (nonthermal and mostly near-natural) in the southeastern Alps. Spring types were identified by fuzzy clustering of nondiatom, benthic algal assemblages. Canonical Correspondence Analysis (CCA) and indicator species analysis (IndVal) were used to identify the most relevant environmental determinants of taxonomic composition in springs and to characterize the ecological traits of key taxa. A total of 120 macro-and microscopic benthic pro-and eukaryotic algae (excluding diatoms) were identified. Cyanobacteria (especially Chroococcales and Oscillatoriales) were strongly prevalent. Seven spring types were identified by fuzzy clustering of nondiatom, benthic algal assemblages. IndVal identified 22 taxa that were significant indicators of spring type, and fuzzy clustering based on environmental preferences identified 18 other important taxa associated with spring type. Spring types differed in environmental features, species richness, and diversity. Mid-to-high altitude, oligotrophic, carbonate flowing springs (rheocrenes) with medium conductivity were the most common spring type and were characterized by shade-tolerant (Chroococcales) or rheophilic (Tapinothrix varians) cyanobacteria. Low-altitude, shaded, and slightly NO3-N-enriched carbonate rheocrenes with medium-to-high conductivity supported rheophilic or eutraphentic cyanobacteria and red algae. Siliceous rheocrenes had benthic algal assemblages dominated by soft-water, rheophilic cyanobacteria and by the rheobiontic chrysophyte, Hydrurus foetidus. Mostly siliceous seepages and pool springs supported predominantly chlorophytes, especially filamentous Zygnematales. Xerotolerant cyanobacteria were common on carbonate rock-face seepages. Benthic algae were used to identify reference conditions of springs for bioassessment purposes. Benthic algae and environmental factors were quantified in 70 springs (nonthermal and mostly near-natural) in the southeastern Alps. Spring types were identified by fuzzy clustering of nondiatom, benthic algal assemblages. Canonical Correspondence Analysis (CCA) and indicator species analysis (IndVal) were used to identify the most relevant environmental determinants of taxonomic composition in springs and to characterize the ecological traits of key taxa. A total of 120 macro-and microscopic benthic pro-and eukaryotic algae (excluding diatoms) were identified. Cyanobacteria (especially Chroococcales and Oscillatoriales) were strongly prevalent. Seven spring types were identified by fuzzy clustering of nondiatom, benthic algal assemblages. IndVal identified 22 taxa that were significant indicators of spring type, and fuzzy clustering based on environmental preferences identified 18 other important taxa associated with spring type. Spring types differed in environmental features, species richness, and diversity. Mid-to-high altitude, oligotrophic, carbonate flowing springs (rheocrenes) with medium conductivity were the most common spring type and were characterized by shade-tolerant (Chroococcales) or rheophilic (Tapinothrix varians) cyanobacteria. Low-altitude, shaded, and slightly NO3-N-enriched carbonate rheocrenes with medium-to-high conductivity supported rheophilic or eutraphentic cyanobacteria and red algae. Siliceous rheocrenes had benthic algal assemblages dominated by soft-water, rheophilic cyanobacteria and by the rheobiontic chrysophyte, Hydrurus foetidus. Mostly siliceous seepages and pool springs supported predominantly chlorophytes, especially filamentous Zygnematales. Xerotolerant cyanobacteria were common on carbonate rock-face seepages.
dcterms:title
Are benthic algae related to spring types? Are benthic algae related to spring types?
skos:prefLabel
Are benthic algae related to spring types? Are benthic algae related to spring types?
skos:notation
RIV/60076658:12310/12:43884206!RIV13-MSM-12310___
n11:predkladatel
n12:orjk%3A12310
n5:aktivita
n8:V n8:Z
n5:aktivity
V, Z(AV0Z60050516)
n5:cisloPeriodika
2
n5:dodaniDat
n13:2013
n5:domaciTvurceVysledku
n19:4880218
n5:druhVysledku
n14:J
n5:duvernostUdaju
n10:S
n5:entitaPredkladatele
n16:predkladatel
n5:idSjednocenehoVysledku
123619
n5:idVysledku
RIV/60076658:12310/12:43884206
n5:jazykVysledku
n20:eng
n5:klicovaSlova
reference assemblages; spring types; springs; species traits; environmental determinants; cyanobacteria; benthic algae; benchmarks; Alps
n5:klicoveSlovo
n6:spring%20types n6:springs n6:cyanobacteria n6:environmental%20determinants n6:benthic%20algae n6:benchmarks n6:species%20traits n6:reference%20assemblages n6:Alps
n5:kodStatuVydavatele
US - Spojené státy americké
n5:kontrolniKodProRIV
[FD8AC69E92F2]
n5:nazevZdroje
FRESHWATER SCIENCE
n5:obor
n15:EH
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
5
n5:rokUplatneniVysledku
n13:2012
n5:svazekPeriodika
31
n5:tvurceVysledku
Cantonati, Marco Rott, Eugen Komárek, Jiří Angeli, Nicola Spitale, Daniel
n5:wos
000309904800016
n5:zamer
n18:AV0Z60050516
s:issn
2161-9565
s:numberOfPages
18
n17:doi
10.1899/11-048.1
n9:organizacniJednotka
12310