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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Typologie des communautés d'oiseaux des alpages et cartographie écologique. (Typology and ecological mapping of bird communities in alpine rangelands)

Auteur :
SPITZ, F.

Description :
During the years 1973-1976, 256 point counts for censusing Passerine communities have been performed in alpine rangelands of the Briançonnais (Hautes-Alpes, France). Numerical results have been processed through classification and factor analysis technics. Passerine communities appear as organized in two superclasses, the one corresponding to the more rocky areas, the other to the less rocky. They are divided in elementary classes deriving from each other along a richness gradient related to herb height and soil pH gradients.


Type de document :
Article de périodique

Source :
Documents de cartographie écologique Grenoble, 1985, vol. 28, p. 3-16, Références bibliographiques : 13 réf.

Date :
1985

Langue :
Français
Droits :
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