Phenological response of a key ecosystem function to biological invasion
| Autor: | Alp, Maria, Cucherousset, Julien, Buoro, Mathieu, Lecerf, Antoine, Sterner, Robert |
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| Přispěvatelé: | Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP), Institut National de la Recherche Agronomique (INRA)-Université de Pau et des Pays de l'Adour (UPPA), Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), This work was supported by the ONEMA (Project ISOLAC – Convention 13-V5-28) and by an ‘ERG Marie Curie’ grant (PERG08-GA-2010- 276969) to JC. MA, JC and MB are members of the laboratory EDB, part of the French Laboratory of Excellence project 'TULIP' (ANR-10-LABX-41, ANR-11-IDEX-0002-02)., Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées |
| Rok vydání: | 2016 |
| Předmět: |
leaf litter decomposition
0106 biological sciences [SDV]Life Sciences [q-bio] Metabolic theory of ecology Climate change Astacoidea [SDV.BID]Life Sciences [q-bio]/Biodiversity Biology Global Warming Models Biological 010603 evolutionary biology 01 natural sciences Freshwater ecosystem invasive species non-native crayfish [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems metabolic theory of ecology Animals Ecosystem 14. Life underwater ComputingMilieux_MISCELLANEOUS Ecology Evolution Behavior and Systematics [SDV.EE]Life Sciences [q-bio]/Ecology environment ecosstem process Detritus seasonality Ecology 010604 marine biology & hydrobiology Temperature Global change 15. Life on land Plant litter Crayfish Plant Leaves 13. Climate action detritus shallow lake Introduced Species |
| Zdroj: | Ecology Letters Ecology Letters, Wiley, 2016, 19 (5), pp.519-527. ⟨10.1111/ele.12585⟩ |
| ISSN: | 1461-023X 1461-0248 |
| DOI: | 10.1111/ele.12585 |
| Popis: | International audience; Although climate warming has been widely demonstrated to induce shifts in the timing of many biological events, the phenological consequences of other prominent global change drivers remain largely unknown. Here, we investigated the effects of biological invasions on the seasonality of leaf litter decomposition, a crucial freshwater ecosystem function. Decomposition rates were quantified in 18 temperate shallow lakes distributed along a gradient of crayfish invasion and a temperature-based model was constructed to predict yearly patterns of decomposition. We found that, through direct detritus consumption, omnivorous invasive crayfish accelerated decomposition rates up to fivefold in spring, enhancing temperature dependence of the process and shortening the period of major detritus availability in the ecosystem by up to 39 days (95% CI: 15–61). The fact that our estimates are an order of magnitude higher than any previously reported climate-driven phenological shifts indicates that some powerful drivers of phenological change have been largely overlooked. |
| Databáze: | OpenAIRE |
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