| Titre : | Ecologia Mediterranea 25(2) - 1999 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. Guiot, Auteur ;
F. Torre, Auteur ;
R. Cheddadi, Auteur ;
O. Peyron, Auteur ;
P. Tarasov, Auteur ;
D. Jolly, Auteur ;
J. O. Kaplan, Auteur
Article
Y. B. Linhart, Auteur ;
L. Chaouni-Benabdallah, Auteur ;
J.-M. Parry, Auteur ;
J. D. Thompson, Auteur
Article
J. A. Torres, Auteur ;
A. Garcia-Fuentes, Auteur ;
C. Salazar, Auteur ;
E. Cano, Auteur ;
F. Valle, Auteur
Article
Olivier Madon, Auteur ;
Sophie Gachet, Auteur ;
Marcel Barbero, Auteur
By sampling plant species in a Mediterranean grassland, the authors examine the influence of the study scale on: (i) the detection of ecological gradients by the correspondence analysis, and (ii) the validation of one of the two models: core-sat[...]
Article
Montserrat Vilà, Auteur ;
Irma Munoz, Auteur
We analysed the taxonomy and biogeography of endemic and exotic plants in the Balearic Islands (Spain), one of the "hot-spots" of the Mediterranean Basin. Richness, diversity and density (number of taxa/log10 area) of exotic taxa (species and su[...]
Article
Juan Antonio Torres, Auteur ;
Antonio Garcia-Fuentes, Auteur ;
Carlos Salazar, Auteur ;
Eusebio Cano, Auteur ;
Francisco Valle, Auteur
A study on the natural communities of Pinus halepensis in southern Spain (Andalusia) is carried out. A compilation of the bibliographic information that contributes interesting data on their spontaneity in the Mediterranean basin is previously m[...]
Article
Joel Guiot, Auteur ;
Franck Torre, Auteur ;
Rachid Cheddadi, Auteur ;
Odile Peyron, Auteur ;
Pavel Tarasov, Auteur ;
Dominique Jolly, Auteur ;
Jed O. Kaplan, Auteur
Classical climate reconstruction based on statistical method implicitly assumes that the atmospheric CO2 concentration, which has greatly fluctuated during the Quaternary, has no influence on the vegetation. In order to attenuate this assumption[...]
Article
Rahma Bessah, Auteur ;
Françoise Rozé, Auteur ;
Dalila Nedjraoui, Auteur
Cellulose represents an important part of the organic matter returned to soil with the litter of alfa. Thus cellulolytic activity is a good indicator of the soil microbial activity. Different experiments in vitro compared the influence of differ[...]
Article
A. Aidoud, Auteur ;
H. Slimani, Auteur ;
F. Aidoud-Lounis, Auteur ;
J. Touffet, Auteur
A set of soil characters are analysed, in an arid steppe subject to desertification, along a transect that presents three levels of grazing intensity. The pre-existing system had been, about twenty years ago, a pure steppe dominated by alfa-gras[...]



