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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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Regional warming-induced species shift in north-west Mediterranean marine caves
Chevaldonné, P.; Lejeusne, C. (2003). Regional warming-induced species shift in north-west Mediterranean marine caves. Ecol. Lett. 6(4): 371-379
In: Ecology Letters. Blackwell: Oxford. ISSN 1461-023X; e-ISSN 1461-0248, meer
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| Abstract |
The north-western Mediterranean Sea’s high biodiversity originates from a mixture oftemperate and subtropical species. Large-scale warming has been detected throughnorthward range shifts of ‘warm-water’ species, and mass-mortality events for ‘coldwater’invertebrates. Marine caves are affected in a more subtle way. By monitoringendemic species of cave mysids (Crustacea) and comparing our results with data in theliterature, we observed a strong decline in one species, coupled with the success ofanother. Near Marseille (France), this phenomenon began while two major thermalanomalies were reported. Different tolerances to temperature were demonstrated byboth the species distribution ranges and laboratory experimentation. We provide apossible physiological explanation for populations of cold stenothermal species ofendemic cave mysids being replaced by congeners of warmer affinities, with a high riskof extinction. We also found strong support for the view that Mediterranean marinebiodiversity is already under the threat of global warming. |
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