The networks of the Pays de la Loire region

Abstract

In an attempt to optimize the operations of grubbing-up and management of invasive introduced species engaged for many years in the region of Pays de la Loire, a network of actors was set up by the DREAL (French Regional Department of the Environment, Planning and Housing) in 2001. This network is operates at the regional level with a committee led by the DREAL and at departmental level. The departmental steering is generally provided by the general council and the federation for fishing and the protection of the aquatic environment. This organization in networks allows it to produce reference documentation (e.g. technical guide, bibliographic synthesis), a an up-to-date map of the state of the proliferation, communication documents as well as scientific and methodological support for to managers.Within this partnership framework two working methods are preferred. Early detection is implemented in order to intervene as quickly as possible as soon as an outbreak occurs (eg in the Loire-Atlantique deparmtment with the management of Crassula helmsii or swamp stonecrop). Prevention and the search for alternative or complementary solutions to grubbing-up make it possible to intervene in addition to or instead of expensive and repetitive grubbing-up operations (eg in the Loire-Atlantique department with the restoration of the Tressé pike spawning ground .