@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS094 prodottidellaricerca:prodotto prodotto:ID52908 . @prefix pubblicazioni: . @prefix unitaDiPersonaleEsterno: . unitaDiPersonaleEsterno:ID6280 pubblicazioni:autoreCNRDi prodotto:ID52908 . @prefix modulo: . modulo:ID4007 prodottidellaricerca:prodotto prodotto:ID52908 . @prefix rdf: . @prefix retescientifica: . prodotto:ID52908 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID52908 rdfs:label "Macroinvertebrate diversity in Alpine lakes: effects of altitude and catchment properties (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID52908 pubblicazioni:anno "2006-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID52908 skos:altLabel "
F\u00FCreder L.(1), Ettinger R.(1), Boggero A., Thaler B.(2), Thies H.(1) (2006)
Macroinvertebrate diversity in Alpine lakes: effects of altitude and catchment properties
in Hydrobiologia (The Hague. Print)
"^^rdf:HTML ; pubblicazioni:autori "F\u00FCreder L.(1), Ettinger R.(1), Boggero A., Thaler B.(2), Thies H.(1)"^^xsd:string ; pubblicazioni:paginaInizio "123"^^xsd:string ; pubblicazioni:paginaFine "144"^^xsd:string ; pubblicazioni:numeroVolume "562"^^xsd:string . @prefix ns11: . prodotto:ID52908 pubblicazioni:rivista ns11:ID596413 ; pubblicazioni:descrizioneSinteticaDelProdotto "Studio sulla fauna bentonica di 55 laghi alpini d\u0092alta quota che evidenzia l\u0092influenza delle caratteristiche di bacino sulla distribuzione in specie nell\u0092ambiente litorale di questi laghi e fornisce utili consigli per strategie di conservazione dell\u0092area alpina."^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "(1) Inst. of Zoology and Limnology, University of Innsbruck (Austria); (2)Biologisches Landeslabor - Umweltagentur, Laives (BZ)"^^xsd:string ; pubblicazioni:titolo "Macroinvertebrate diversity in Alpine lakes: effects of altitude and catchment properties"^^xsd:string ; prodottidellaricerca:abstract "Lakes are common features of alpine landscapes, and the attention given to alpine lakes has increased recently in response to increased recognition of the important role that these freshwaters play as sensible indicators of climate change. Despite this general research interest, there is nevertheless a general lack of information about zoobenthos especially of lakes in the Alps, and only few published data are available, which has made it nearly impossible to draw general conclusions in respect to benthic community structure, profundal and/or littoral food webs.\nThis paper aims to explore the relationships between main environmental/ catchment properties of 55 lakes and their littoral benthic fauna across three regions of the Alps. We provide updated information on relative abundance, species richness, distribution and ecology of macroinvertebrates which occur and are typical in the littoral of high-mountain lakes of the Alps. These lakes were located in the Lago Maggiore Watershed (Italy and Switzerland), in South Tyrol (Italy) and in North/ East Tyrol (Austria), between 1840 and 2796 m a.s.l., in catchments undisturbed by human activities. As the studied lakes are situated above the tree-line, they were characterised by low nutrient levels indicating an oligotrophic status. Lake water chemistry corresponded closely to the geo-lithology of the catchment and some parameters (especially nutrient concentrations) differed between the regions. The macroinvertebrates were dominated by insects which to a high degree were chironomid larvae and pupae. Other insect orders were typical cold stenotherm species of Ephemeroptera, Plecoptera and Trichoptera. Non-insect macroinvertebrates contributed to the 144 taxa found.\nOther than lake size and catchment area, the faunal parameters exhibited a clearer pattern along altitude. Macroinvertebrates per sample increased with higher elevation, reached their maximum in lakes between 2400 and 2600 m a.s.l., but decreased strongly above 2600 m. The altitudinal pattern of species richness and Shannon diversity resembled each other being highest between 2001 and 2200 m a.s.l., but decreased when going lower and higher, respectively.\nVarious patterns and trends along altitude were also evident when individual groups were analysed within the individual sampling regions. The somewhat conflicting trends of various biocoenotic indices let assume that factors other than altitude are also responsible for the structure of faunal assemblages in the littoral of alpine lakes.\nSix variables (\u0093bare rocks\u0094 and \u0093nitrate\u0094, \u0093alkalinity\u0094, \u0093ammonia\u0094 and \u0093peat bog\u0094) were selected by the CCA analysis where these three groups of lakes were identified: 1) lakes with a higher alkalinity (higher pH, conductivity, ion concentration), a higher relative vegetation cover (compared to the \u0093bare rocks\u0094 on the opposite side) and lower nitrate levels; 2) lakes with a higher portion of \u0093bare rocks\u0094 in their catchments and higher nitrate levels; and 3) a smaller group of lakes with higher ammonia levels and a bogy environment.\nGeographical patterns seemed to have weak effects on the presence of taxa while catchment properties had evident impacts on macroinvertebrate communities in these lakes. In this way, the present study contributes to the overall understanding of environmental settings and effects on high mountain lake ecosystems and assists in refining research and conservation strategies for an important landscape aspect in the Alps." ; prodottidellaricerca:prodottoDi istituto:CDS094 , modulo:ID4007 ; pubblicazioni:autoreCNR unitaDiPersonaleEsterno:ID6280 . @prefix parolechiave: . prodotto:ID52908 parolechiave:insiemeDiParoleChiave . ns11:ID596413 pubblicazioni:rivistaDi prodotto:ID52908 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID52908 .