Blanchet Elodie, Pagès Christine, Blondin Laurence, Foucart Antoine, Lecoq Michel.
2008. Impact of changes in land using on orthoptera in Languedoc Roussillon.
In : Proceeding of the IVth meeting Ecology and Behaviour, Toulouse, France, 14-17 April 2008. ENFA Ecole Nationale Formation Agronomique
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Matériel d'accompagnement : 1 poster
Résumé : Global changes have an impact on the species habitats and their uses. Some regions, as Langue- doc in the Mediterranean basin, experiment for a long time an important human pressure, in particular an important fall of agricultural practices. We expect to know if changes in land use, encouraging the opening or closure of the vegetation, could have an impact on Orthoptera popula- tions. We chose three Calliptaminae species living in different habitats and with different dispersion capacities: Calliptamus barbarus, C. italicus and C. wattenwylianus. Using molecular markers and a GIS-based vegetation model, we want to improve our knowledge on the genetic differentiation as well as on the dispersion capacities of these Calliptaminae. We sampled 1200 individuals from the three species, on two sites (72 km2) distant of 40 kilometres. Five microsatellite markers have been developed. In total, we isolated 12 polymorphic markers, among which four amplified on the three species, five on C. barbarus and three on C. italicus. Associated to spatial characterisation of the environment, these new markers may allow us to develop spatial genetic studies on this genus and to have a better evaluation of their dangerousness.
Classification Agris : H10 - Ravageurs des plantes
F08 - Systèmes et modes de culture
Auteurs et affiliations
- Blanchet Elodie, CIRAD-BIOS-UPR Acridologie (FRA)
- Pagès Christine, CIRAD-BIOS-UPR Acridologie (FRA)
- Blondin Laurence, CIRAD-BIOS-UPR Acridologie (FRA)
- Foucart Antoine, CIRAD-BIOS-UPR Acridologie (FRA)
- Lecoq Michel, CIRAD-BIOS-UPR Acridologie (FRA)
Source : Cirad - Agritrop (https://agritrop.cirad.fr/571605/)
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