Invasive alien species - IAS

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 Following on from the previous works, volume 4 brings together 25 unpublished project management reports in aquatic and terrestrial environments, including 8 in the French overseas territories.

This document presents the results of the first National meetings on invasive exotic crayfish providing a description of present knowledge on invasive and native crayfish species in France, a better understanding of processes operating, the place of invasive crayfish in aquatic ecosystems and their effects on biodiversity, and lastly a presentation of management approaches investigated in the country.

Exotic crayfish, bullfrogs, Japanese knotweed, primrose willows… invasive species are one of the main pressures that ecosystems are subjected to. Objective of this seminar on the management of these species in aquatic environments? Provide 3 days for exchanging between the various stakeholders involved with these species, while also providing scientific and technical knowledge that can improve management practices.

The national symposium on The outlook for managing aquatic biodiversity in rivers and lakes was an occasion to report on some 30 partnership-research projects in the field of aquatic biodiversity. Following a status report on biodiversity in aquatic environments in France, the meeting went on to present a range of innovative tools for monitoring and restoring biodiversity in a context of global climate change.

Out of the 9 crayfish species inventoried in France in 2013, 6 were introduced during the XX^th century. 3 of them are well-known invasive. In response to an increasing need for more knowledge and solutions, an unprecedented research effort has been led in Brière since 2010. All these studies, along with others led elsewhere in France, were presented during the first French meeting on invasive exotic crayfish.

Invasive alien species (IAS) are acknowledged as one of the main causes of biodiversity loss worldwide. The objective of these 2 volumes is to contribute to the debates on how to manage IASs, to provide a general outline on current knowledge (volume 1) and a number of specific examples (volume 2) to assist managers of aquatic environments and policy makers in their respective tasks to better manage these species. The first volume presents the current situation concerning invasive alien species in aquatic environments in continental France.

The 2 days of discussions between scientists and water managers were an occasion to present some 30 partnership-research projects on aquatic biodiversity. Following a status report on biodiversity in aquatic environments, the speakers presented a range of innovative tools for monitoring and restoring biodiversity in a context of global climate change. Recap.

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

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.