Skip to Main content Skip to Navigation
Poster communications

Island river levelling: a favorable situation to explore ground beetles (Coleoptera : Carabidae) ability to recolonize pioneer riparian habitats

Abstract : The Loire, the last wild river in Western Europe, undergoes recurrent maintenance operations of bed to improve flow and to avoid reduction of the main stem. Thus, the territorial collectivities carried out levelling of one island in autumn 2012 in the Natural Reserve of Saint-Mesmin (France). We took advantage of this work to launch a long term survey of the island recolonization by plants, birds, beavers and insects. We report here the impact on insect populations taking ground beetles (Coleoptera : Carabidae) as a model study. We compared assemblages (communities) before and just after the levelling. Sampling was done with Barber traps and quadrats in eight habitats of the island as well as in various sites located upstream or downstream. We found high levels of species richness within these pioneer and ephemeral habitats. Several species of ground beetles appeared to be good indicators of sampled habitats where extreme environmental conditions generally prevail. Community analyses indicated that ground beetle very quickly colonized newly created habitats and allowed us to identify species being very good pioneers of early successional habitats.
Document type :
Poster communications
Complete list of metadata

Cited literature [2 references]  Display  Hide  Download

https://hal.inrae.fr/hal-02800002
Contributor : Migration ProdInra Connect in order to contact the contributor
Submitted on : Friday, June 5, 2020 - 6:42:35 PM
Last modification on : Friday, August 5, 2022 - 10:35:57 AM

File

Denux_etal_2014_ECE_28-07-2014...
Files produced by the author(s)

Identifiers

Citation

Olivier Denux, Emmanuelle Dauffy-Richard, Jean-Pierre Rossi, Sylvie Augustin. Island river levelling: a favorable situation to explore ground beetles (Coleoptera : Carabidae) ability to recolonize pioneer riparian habitats. 10. European Congress of Entomology, Aug 2014, York, United Kingdom. 1p., 2014. ⟨hal-02800002⟩

Share

Metrics

Record views

10

Files downloads

4