Decadal changes in water temperature and ecological time-series in Lake Geneva, Europe - relationship to subtropical Atlantic climate variability
| Autor: | Sami Souissi, Daniel Gerdeaux, Juan Carlos Molinero, Orlane Anneville, Leslie Lainé |
|---|---|
| Přispěvatelé: | Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL), Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Université des Sciences et Technologies (Lille 1) (USTL) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
0106 biological sciences
Atmospheric Science Multivariate statistics 010504 meteorology & atmospheric sciences [SDV]Life Sciences [q-bio] Forcing (mathematics) Subtropics 01 natural sciences Zooplankton Abundance (ecology) Environmental Chemistry LAC LEMAN ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences General Environmental Science Series (stratigraphy) biology Ecology 010604 marine biology & hydrobiology biology.organism_classification LEPTODORA KINDTII Oceanography Bythotrephes longimanus 13. Climate action Climatology OCEAN ATLANTIQUE SUBTROPICAL Period (geology) BYTHOTREPHES LONGIMANUS Environmental science |
| Zdroj: | Climate Research Climate Research, Inter Research, 2007, 34, pp.15-23 |
| ISSN: | 0936-577X 1616-1572 |
| Popis: | We investigated connections between subtropical Atlantic climate variability, atmo- spheric conditions in the European Alpine region (45 to 47° N and 5 to 8° E) and the interannual vari- ability of the thermal conditions in the largest body of freshwater in Western Europe (Lake Geneva). The long-term water temperature was related to climate variability by means of a multivariate regres- sion model. Results revealed atmospheric connections that have been elusive so far, and showed that over the period from 1959 to 2000, summer thermal conditions in Lake Geneva appear tightly linked to the long-term variability of the subtropical Atlantic climate. The multivariate model revealed high skills and tight correlations, which suggest the possibility of assessing future thermal changes in Lake Geneva from the Atlantic climate variability. The implications of such climatic forcing on the function- ing of the pelagic ecosystem in Lake Geneva were illustrated by analysing the long-term changes in abundance of the summer-dominant carnivorous cladocerans Bythotrephes longimanus and Lep- todora kindtii during the period 1974 to 2000. Again, the multivariate model revealed high skills and excellent correlations between the interannual changes in abundance of these species and the variability of summer climate. Our approach provides a general understanding of the interrelations be- tween large- and regional-scale climates, local environmental conditions and the ecological responses in Lake Geneva during summer, and is therefore applicable to other retrospective studies. |
| Databáze: | OpenAIRE |
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