Rechercher une ressource pédagogique : préservatif

Le moteur de recherche des ressources pédagogiques donne accès à un ensemble de documents mis à disposition par l'Université Numérique, les établissements d'enseignement supérieur et Canal U. Vous y trouverez des productions universitaires dans l'ensemble des domaines de formation.

FILTRES

46 résultats
section 1 sur 5
résultats 1 à 10
Canal-U
Canal-U
09.10.2014
5. Biodiversité ordinaire : enjeux, préservation
Description : Denis Couvet s'intéresse à la biodiversité ordinaire, à savoir celle qui nous entoure et qui représente 80% des espèces dans le monde. Il propose un aperçu de l'état de cette biodiversité, en lien notamment avec le changement climatique. Pour terminer, il pose les cinq grands enjeux liés au devenir ...
  • changement climatique
  • préservation
  • Biodiversité ordinaire
Canal-U
Canal-U
09.10.2014
1. Différents enjeux de préservation de la biodiversité
Description : Denis Couvet présente les raisons pour lesquelles la préservation de la biodiversité a du sens : sa valeur intrinsèque, la fonctionnalité des écosystèmes et son potentiel évolutif. Dans un second temps, il propose une compartimentalisation de ces objectifs de préservation : espèces menacées, bio ...
  • biodiversité
  • espèces menacées
  • préservation
  • Ecologie fonctionnelle
  • Biodiversité ordinaire
  • Valeur intrinsèque
Canal-U
Canal-U
09.10.2014
EN-3. Biodiversity management strategies facing direct pressures
Description : Denis Couvet proposes several strategies of biodiversity management, to meet the direct pressures the biodiversity is subjected to (destruction, overexploitation, ecotoxicity, invasive species, climate change). He evokes the compensation, the control, the participative sciences or the Nature bases ...
  • biodiversity
  • preservation
  • preservation policy
Canal-U
Canal-U
30.10.2014
EN-7. Dead wood, dendro-micro-environments and biodiversity
Description : Marion Gosselin proposes a focus on the dead wood, which is an essential component of the forests. The linked biodiversity, the saproxylic species, indeed represents 25% of the forest biodiversity. On the basis of an understanding of its functioning and of its benefits, she highlights a real pre ...
  • biodiversity
  • preservation
  • forest
  • dead wood
Canal-U
Canal-U
09.10.2014
EN-1. Different issues of protecting biodiversity
Description : Denis Couvet presents the reasons that the biodiversity preservation makes sense: its inherent value, the functionality of ecosystems, and its progressive potential. In a second phase, he proposes a compartmentalisation of those preservation objectives: threatened species, ordinary biodiversity, ...
  • biodiversity
  • preservation
  • functional ecology
  • threatened species
  • ordinary biodiversity
  • inherent value
Canal-U
Canal-U
24.04.2015
EN-2. Ethics and the safeguarding of nature: preservation or conservation ?
Description : Catherine Larrère discusses the distinction which can be made between two very different ideas of nature protection: preservation and conservation. She relies on the works of John Muir and Gifford Pinchot.
  • conservation
  • ethics
  • environment
  • preservation
Canal-U
Canal-U
19.11.2014
EN-9. Management of an emblematic species: the bluefin tuna
Description : With Jean-Marc Fromentin, we discover the bluefin tuna. It is fished since Antiquity, but it is subjected to strong pressure for almost three decades, which is responsible for a large decline of the populations. He evidences the scientific, political and social aspects which enabled to better preserve ...
  • Quotas
  • fishery
  • preservation
  • bluefin tuna
Canal-U
Canal-U
09.10.2014
EN-5. Ordinary biodiversity: issues, protection
Description : Denis Couvet talks about the ordinary biodiversity, that is the biodiversity around us, which represents 80% of the world species. He proposes an overview of the condition of this biodiversity, especially linked with the climate change. To finish, he presents the five main issues related to the ...
  • preservation
  • climate change
  • ordinary biodiversity
Canal-U
Canal-U
14.10.2014
EN-4. Strategies for protection of threatened species
Description : François Sarrazin focuses on the different strategies which can be used to preserve the endangered species. He firstly comes back to some factors of risk (climate, extinction, vortex), and to some guidance data from the UICN. In this context, he talks about several ways of preservation, like the ...
  • biodiversity
  • preservation
  • threatened species
Canal-U
Canal-U
14.10.2014
EN-9. The future of biodiversity: the need of managing the biological evolution
Description : On the basis of a reminder of the main factors supporting the biological evolution, Alexandre Robert presents some major and future orientations of the strategies of biodiversity preservation: the preservation of the adaptation genetic abilities of species, the modelling of the future distributions ...
  • evolution
  • biodiversity
  • preservation