Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | The lentic-lotic character of Mediterranean rivers and its importance to aquatic invertebrate communities |
| Abstract | Hydromorphological features are crucial in structuring habitats for freshwater organisms. The quantification of these variables is often performed through accurate measuring or detailed estimation, but their assessment is not always feasible for river management purposes. Economic and time constraints often lead to difficulty in creating simple summaries of collected data for practical use. The Lentic-lotic River Descriptor (LRD) was developed to identify the character of a river site in terms of local hydraulic conditions. Information about the presence of flow types, channel substrates, in-stream vegetation, organic debris and artificial features is included in its calculation. The main aim of this paper is to investigate whether the lentic-lotic character of a river site, as summarized with the LRD descriptor, is relevant to aquatic invertebrate communities in nearly natural river sites. Invertebrate data were collected with multi-habitat, proportional sampling and hydromorphological information was gained by applying the CARAVAGGIO method (river habitat survey technique) in the field. The dataset was generated from High or Good ecological status river sites located in Mediterranean areas of Italy. Correspondence Analysis was performed to relate the invertebrate community structure to a set of catchment-scale, reach-scale and chemical environmental variables. The results of the multivariate analysis indicate that LRD provides a persuasive explanation of the most important axis of variation in benthic data. This paper also presents the optimal LRD range for a set of invertebrate taxa, accompanied by a short discussion of their potential use in conservation issues. |
| Source | Aquatic sciences (Print. ed.) 72, pp. 45–60 |
| Keywords | Mediterranean riversHydraulic habitatLIFE indexWFDClimate change |
| Journal | Aquatic sciences (Print. ed.) |
| Editor | Birkhäuser, Basel, Svizzera |
| Year | 2010 |
| Type | Articolo in rivista |
| DOI | 10.1007/s00027-009-0112-4 |
| Authors | Buffagni A; S Erba; DG Armanini |
| Text | 176401 2010 10.1007/s00027 009 0112 4 ISI Web of Science WOS 000272901900005 Mediterranean rivers Hydraulic habitat LIFE index WFD Climate change The lentic lotic character of Mediterranean rivers and its importance to aquatic invertebrate communities Buffagni A; S Erba; DG Armanini CNR IRSA Hydromorphological features are crucial in structuring habitats for freshwater organisms. The quantification of these variables is often performed through accurate measuring or detailed estimation, but their assessment is not always feasible for river management purposes. Economic and time constraints often lead to difficulty in creating simple summaries of collected data for practical use. The Lentic lotic River Descriptor LRD was developed to identify the character of a river site in terms of local hydraulic conditions. Information about the presence of flow types, channel substrates, in stream vegetation, organic debris and artificial features is included in its calculation. The main aim of this paper is to investigate whether the lentic lotic character of a river site, as summarized with the LRD descriptor, is relevant to aquatic invertebrate communities in nearly natural river sites. Invertebrate data were collected with multi habitat, proportional sampling and hydromorphological information was gained by applying the CARAVAGGIO method river habitat survey technique in the field. The dataset was generated from High or Good ecological status river sites located in Mediterranean areas of Italy. Correspondence Analysis was performed to relate the invertebrate community structure to a set of catchment scale, reach scale and chemical environmental variables. The results of the multivariate analysis indicate that LRD provides a persuasive explanation of the most important axis of variation in benthic data. This paper also presents the optimal LRD range for a set of invertebrate taxa, accompanied by a short discussion of their potential use in conservation issues. 72 http //www.springerlink.com/content/985g7726m2077366/ The lentic lotic character of Mediterranean rivers and its importance to aquatic invertebrate communities_Buffagni_2010 LRD1_AqSci2010.pdf Articolo in rivista Birkhauser 1015 1621 Aquatic sciences Print. ed. Aquatic sciences Print. ed. Aquat. sci. Print. ed. Aquatic sciences. Print. ed. ARMANINI DAVID GIORDANO andreastefano.buffagni BUFFAGNI ANDREA STEFANO stefania.erba ERBA STEFANIA TA.P04.016.001 Caratteristiche ecologiche di comunita acquatiche in ambienti fluviali e lagunari TA.P04.032.001 Funzionalita degli ecosistemi acquatici dinamica dei nutrienti, idromorfologia e habitat fluviali |