The biodiversity plays a key role in the development and the upholding of the agrarian practices all over the world. This biodiversity is related to the grown species and varieties, but also to the ecosystems where those farmings are established, starting with the soil. The recent evolution of those practices shows a considerable decrease of the structure and of the functioning of this biodiversity. In the short and medium terms, this is a threat for the food production capacities. In order to ensure a sustainable agriculture, Etienne Hainzelin points out the necessity to develop agrarian practices, which are more intense from an ecological point of view.
Mot(s) clés libre(s) : biodiversity, agronomy, soil

In this third part, you will discover the biodiversity of the terrestrial and continental aquatic environments. Those environments are extremely diversified and are subjected to very specific dynamics, like intermittent rivers or ecological successions of the forest environments. Some of those environments present important physicochemical variations, like the rivers, from the spring to the estuary. The biodiversity is very rich in those environments, and several preservation prospects are presented.
Mot(s) clés libre(s) : biodiversity, forest, river

In this second part, discover the biodiversity of the oceans, from the coral reefs to the coastal lagoons. This biodiversity, of which the knowledge is still partial, is the subject of great attentions, by virtue of its importance in the main balances of the biosphere, but also by virtue of the favors it does for the human societies, beginning with the supplying of food resources. The ecosystem approach to fisheries is currently developed in this context, in order to reconcile those different preservation issues.
Mot(s) clés libre(s) : biodiversity, oceans

Christian Amblard proposes a definition of the biodiversity, which he comprehends from the functional angle. After an highlighting of this biodiversity dynamics, he presents the ecosystem services approach.
Mot(s) clés libre(s) : biodiversity, ecosystem services, sustainable development

Nadia Belaïdi presents the Peace Parks, which are protected areas having an objective of biodiversity cross-border protection, of peace between populations sharing resources, and of local development. Then she mentions all the discussions related to the recognition of the ecocide crime, which is an irreversible, intentional or not, act of destruction of an ecosystem.
Mot(s) clés libre(s) : law, Ecocide, biodiversity, international cooperation, Peace Parks

In this first part, discover what are the biodiversity, its origins 3,8 billion years ago, and its evolution mechanisms, especially the extinction crisis of the main species. You will better understand the current state of the biodiversity, and why it is important to preserve its dynamics.
Mot(s) clés libre(s) : biodiversity, crisis

Gilles Boeuf proposes a definition of the biodiversity, this "living fraction of the nature in all its complexity". He relies on many examples, pictures, samples, and always points out the strong connection between liquid water and life.
Mot(s) clés libre(s) : biodiversity, definition, water

In relation to the erosion of biodiversity, Gilles Boeuf presents arguments in favor of the upholding of this biodiversity: human health, technology innovation, bio-inspiration, or economy.
Mot(s) clés libre(s) : innovation, health, Bio-inspiration, biodiversity, economy

Gilles Boeuf comes back to the main stages of the history of life. He begins with the oceans, where life appeared over 3,5 billion years ago, mentions the lands conquest, and ends with the appearance of human groups and the combined transformations.
Mot(s) clés libre(s) : biodiversity

Gilles Boeuf reports the erosion of biodiversity and presents the four main factors which can be associated to this dynamics: destruction and pollution, resources overexploitation, species dissemination, climate change.
Mot(s) clés libre(s) : biodiversity, crisis, climate, invasive species, overexploitation