Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Resource ratio and human impact: how diatom assemblages in Lake Maggiore responded to oligotrophication and climatic variability |
| Abstract | Diatoms have been often used to track trophic changes from sedimentary records: recent studies demonstrated that these organisms can even be valuable indicators of climatic variability, although it is often difficult to discriminate the role of trophic and climatic drivers. Moving from the hypothesis that oligotrophication and climate affected the composition of the diatom assemblages by changing the resource ratio, we analysed the vernal diatoms succession in Lake Maggiore, between 1984 and 2007, using multivariate techniques (cluster analysis, canonical correspondence analysis, multivariate regression trees), in order to single out the oligotrophication effects from those attributable to climatic variability. |
| Source | Hydrobiologia (Dordr., Online) 698, pp. 47–60 |
| Journal | Hydrobiologia (Dordr., Online) |
| Editor | Kluwer, Dordrecht, Paesi Bassi |
| Year | 2012 |
| Type | Articolo in rivista |
| DOI | 10.1007/s10750-012-1094-0 |
| Authors | Morabito., G., A. Oggioni & M. Austoni |
| Text | 202172 2012 10.1007/s10750 012 1094 0 Resource ratio and human impact how diatom assemblages in Lake Maggiore responded to oligotrophication and climatic variability Morabito., G., A. Oggioni M. Austoni IREA IREA Sezione di Milano ISE Istituto per lo studio degli ecosistemi Diatoms have been often used to track trophic changes from sedimentary records recent studies demonstrated that these organisms can even be valuable indicators of climatic variability, although it is often difficult to discriminate the role of trophic and climatic drivers. Moving from the hypothesis that oligotrophication and climate affected the composition of the diatom assemblages by changing the resource ratio, we analysed the vernal diatoms succession in Lake Maggiore, between 1984 and 2007, using multivariate techniques cluster analysis, canonical correspondence analysis, multivariate regression trees , in order to single out the oligotrophication effects from those attributable to climatic variability. 698 Articolo in rivista Kluwer 1573 5117 Hydrobiologia Dordr., Online Hydrobiologia Dordr., Online Hydrobiologia Dordr., Online Hydrobiologia. Dordr., Online Hydrobiologia Dordrecht Dordr., Online Hydrobiologia Boston Dordr., Online Hydrobiologia London Dordr., Online martina.austoni AUSTONI MARTINA giuseppe.morabito MORABITO GIUSEPPE alessandro.oggioni OGGIONI ALESSANDRO TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici ICT.P10.014.003 Tecniche di interpretazione di dati geografici multidimensionali e infrastrutture di dati spaziali |