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EN-9. Biodiversity: perception and uses
Pierre-Henri Gouyon comes back to different looks taken at nature and biodiversity during the last centuries. He insists on the fact that this biodiversity can't be reduced to a frozen group of species, but that we have to consider its dynamic and complex dimensions when we mention its preservation. He illustrates his words with the example of agriculture. Voir la vidéo
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EN-10. Why should we worry about biodiversity ?
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. Voir la vidéo
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EN-11. Nature and progress
Pierre-Henri Gouyon relies on an example - Dedale - to show the effects and the risks of a progress understanding which is only based on the technology. Voir la vidéo
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Oceans: introduction to biodiversity and resources
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. Voir la vidéo
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EN-1. Observation of oceanic marine ecosystems
The marine environment is uneasy of access, so Pierre Chavance presents some current ways to better know the state of the marine biodiversity and resources. He focuses on the accompanying and surveillance measures of the fishing boats, especially on the boats fishing with a seine. Voir la vidéo
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EN-2. Marine connectivity and impact on marine biodiversity
Sylvain Bonhommeau highlights the movements of many animal populations of the oceans throughout their life cycle, and so he shows the issue of the marine connectivity. The species and their movements have to be better known, and the marine connectivity has to be included into the policies of marine species protection. Voir la vidéo
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EN-3. Environment complexity and productivity of the coral reefs
David Mouillot proposes an analysis of the coral reefs in terms of biodiversity and productivity. He tries to explain the importance of the coral environments for the development of wide food webs, which can be durably used by the human populations of the concerned coastlines. Voir la vidéo
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EN-4. Coastal lagoons: importance for the coastal productivity of oceans
Audrey Darnaude shows us the role and the importance of the lagoons for the functioning of the biodiversity. Thanks to examples in the Lion Gulf, she explains that the coastal productivity is closely linked to those ecosystems. Voir la vidéo
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