Journal
HYDROBIOLOGIA
Volume 497, Issue 1-3, Pages 169-180Publisher
SPRINGER
DOI: 10.1023/A:1025476220081
Keywords
assemblage patterns; habitat requirements; environmental factor; Detrended Canonical Correspondence Analysis; cluster analysis
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In a dragonfly survey, carried out in a lowland wetland area in eastern Austria, a total of 19 resident species was recorded. Multivariate statistical procedures were used to analyse the relationship between dragonfly assemblage patterns and environmental variables. Besides widespread and euryoecious species with unspecific habitat requirements two dragonfly associations were identified: on the one hand species mainly occurring at temporary natural and near-natural ponds characterised by rush and reed vegetation, on the other hand species preferring permanent waters such as the artificial waterbodies in the investigation area characterised by floating macrophytes. Water persistence and the existence of floating macrophytes determined the formation of species assemblages.
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