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Résultats de la recherche (6 résultats)

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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Changes in the bird fauna in Finland and their causes
  • 1978
  • to a detailed inventory of phanerogamic plants| nesting birds were recorded by square km. The floristic diversity amounts to 425 species| 73 bird species have been observed for a total area of 1627 ha. The data were weighed according to both a local
  • 1978
  • Echec des villages modernes préconisés par la BIRD, et nouvelle politique agricole fondée sur les valeurs communautaires traditionnelles. Les villages ujamaa (8000 en 10ans) regroupent 13M d'hab. l'ensemble de la population rurale désormais. Le
  • 1978
  • Immediatly following the Amoco Cadiz oil spill, the SEPNB carried out health centers for oiled birds from Finistere, and estimated the impact of the oil spill on seabirds. In the whole, 15 to 20000 birds are dead because of the Amoco Cadiz oil spill
  • . 41 species have been oiled, among which 35 usually live in marine environment. The species most stressed belong to alcidae. The mortality rate (0,1 bird/ton of oil) seems to be at present day, the lowest rate never mentioned in the Litterature.
  • 1978