L'immatérielle richesse des nations

Rodent species Richness is coRRelated with caRnivoRe species Richness in spain

résuMé. — La richesse spécifique des rongeurs et celle des carnivores sont corrélées en Espagne. — La diversité des niches écologiques favorise la coexistence des espèces, accroissant la richesse spécifique. La richesse spécifique des carnivores devrait donc croître avec celle de leurs proies, en raison des niches trophiques ainsi ouvertes. cette hypothèse a été évaluée à l’aide de modèles liné...

Poor Nations / Rich Nations : Why the Difference ?

This article argues that the difference between poor countries and rich countries has to do with governance rather than resources, emphasizing the importance of public administration in explaining economic success and failure. Political elasticity (PE) theory is introduced for the analysis presented here, including the following terminology: (1) political elasticity, (2) political inelasticity,...

Etude sur l'Agalaxic contagieuse des chèvres et des moutons

United Nations Food and Agriculture Organization United Nations

Termites are the most important soil fauna in the Sahelian zone of Africa, intensely interacting with the soil. Both the biotic and abiotic state of the soil affect the termite population and activity. The construction by termites of nests, gallery systems or sheetings from soil or from a mixture of soil and other material within the soil horizons or on the soil surface affect the physical and ...

United Nations Environment Programme United Nations Human Settlements Programme