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Catchment land cover as a proxy for macroinvertebrate assemblage structure in Carpathian Mountain streams
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2011 (English)In: Hydrobiologia, ISSN 0018-8158, E-ISSN 1573-5117, Vol. 673, no 1, p. 153-168Article in journal (Refereed) Published
Abstract [en]

We compared land cover, riparian vegetation, and instream habitat characteristics with stream macroinvertebrate assemblages in 25 catchments in the Carpathian Mountains in Central Europe. This study area was particularly selected because of its diverse history of forest and agricultural ecosystems linked to geopolitical dynamic, which provide a suite of unique landscape scale, land cover settings in one ecoregion. Canonical Correspondence Analysis (CCA) showed that variation in composition and structure of macroinvertebrate assemblages was primarily related to four land cover types, and not to riparian or instream habitat. These were the portions in the catchment areas of (1) broadleaved forest, (2) fine-grained agricultural landscape mosaic with scattered trees (e. g., pre-industrial cultural landscape), (3) mixed forest, and (4) natural grassland without trees. Principal Component Analysis (PCA) suggested that land cover types and stream channel substrates co-varied. The PCA also showed that chemical variables, including organic carbon, had higher values in the agricultural landscape compared to natural forests. The major source of variation among taxa in streams was higher abundance of Diptera in agricultural landscapes and of Plecoptera, Coleoptera, Trichoptera, and Amphipoda in forests. Gastropoda and Oligochaeta were more abundant in open, fine-grained agricultural landscape mosaics with scattered trees. Ephemeroptera taxa were quite indifferent to these gradients in catchment land cover, but showed a tendency of being more abundant in the pre-industrial cultural landscape. Our findings suggest that land cover can be used as a proxy of the composition and structure of macroinvertebrate assemblages. This means that land use management at the catchment scale is needed for efficient conservation and recovery of stream invertebrate communities.

Place, publisher, year, edition, pages
Springer, 2011. Vol. 673, no 1, p. 153-168
Keywords [en]
Land use, Land cover, European Water Framework Directive, Macroinvertebrates, Ecological integrity
National Category
Natural Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-17024DOI: 10.1007/s10750-011-0769-2ISI: 000293162400012Scopus ID: 2-s2.0-79960563277OAI: oai:DiVA.org:oru-17024DiVA, id: diva2:439363
Available from: 2011-09-07 Created: 2011-09-02 Last updated: 2017-12-08Bibliographically approved

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Angelstam, P.Temnerud, Johan

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