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Assèchement des cours d'eau : effets sur les communautés d'invertébrés et la dynamique de la matière organique particulaire

Abstract : Aquatic-terrestrial transitions play a major role in the functioning of ecosystems. In rivers that periodically cease to flow, these transitions move laterally in riparian zones and longitudinally along dry riverbeds. The objective of this thesis was to determine in drying rivers the effects of aquatic-terrestrial transitions on terrestrial invertebrate communities and on particulate organic matter dynamic, a key ecological process for ecosystem functioning. The results show that riparian communities are poorly dependent on aquatic resources from the rivers but are essential to invertebrate diversity in dry riverbeds. Organic matter has a pulsed dynamic in drying rivers with transport and processing stages limited to aquatic conditions, potentially influencing nutrient availability in river networks
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https://tel.archives-ouvertes.fr/tel-00828092
Contributor : Roland Corti <>
Submitted on : Tuesday, June 4, 2013 - 11:04:44 AM
Last modification on : Monday, May 18, 2020 - 2:35:29 PM
Long-term archiving on: : Thursday, September 5, 2013 - 4:21:15 AM

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  • HAL Id : tel-00828092, version 2

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Roland Corti. Assèchement des cours d'eau : effets sur les communautés d'invertébrés et la dynamique de la matière organique particulaire. Ecologie, Environnement. Université Claude Bernard - Lyon I, 2013. Français. ⟨tel-00828092v2⟩

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