Collections of experiences

Invasive alien species (IAS) and their impacts represent a growing concern for the managers of natural areas. In both continental France and the overseas territories, a large number of people and organisations have taken action to limit the damage. Following on from the previous works, volume 4 brings together 25 unpublished project management reports in aquatic and terrestrial environments, including 8 in the French overseas territories.

NEW FILES 2020/2021 !
Invasive alien species (IAS) and their impacts represent a growing concern for the managers of natural areas.That is particularly true for aquatic environments where an array of stakeholders are now taking action. In parallel, public policies are coming into play on the national level and the European Union now has a regulation in this field. These volumes offer highly useful information while attempting to address the specific aspects of each situation, including the site, the species to be managed and the necessary technical and financial resources.

This second volume illustrates the situation discussed in the first volume with feedback from management projects in continental France and Europe.

The collection presents more than 60 examples of river hydromorphology restoration undertaken over the past 20 years throughout France. These actions aim to preserve river hydromorphology or to re-establish hydromorphological processes of rivers.

In France, more than 60000 structures - dams, locks, weirs and mills - have been listed on rivers and are potential obstacles to river continuity. Important regulatory texts focus on biological continuity between major natural sites and within aquatic environments. In practical terms, these regulatory texts lead us to increase our collective efforts and actions in favour of restoring river continuity.