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Spatial-temporal patterns of functional feeding groups in mountain streams of Córdoba, Argentina Ecología austral
Príncipe,Romina E; Gualdoni,Cristina M; Oberto,Ana M; Raffaini,Graciela B; Corigliano,María C.
Trophic structure of benthic communities is influenced by the availability of food resources which indeed may be conditioned by stream size, shading and substrate. This study aims to analyze the distribution of macroinvertebrate Functional Feeding Groups in different habitats of mountain streams (Córdoba, Argentina) and to assess the environmental variables conditioning this distribution at the habitat level. Four streams were sampled in two hydrological periods (high and low discharge) and three benthic samples were taken in riffles and runs of coarse and fine substrate. Gathering collectors were dominant in most of the habitats, streams and periods except in riffles during the low water period in which filtering collectors dominated. At the habitat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macroinvertebrates; Benthos; Habitat; Functional organization; Lotic ecosystem.
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2010000300005
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