Two separate wildfire hazard indices calculated for the period 1941 to 1994 increase in mean value and in the number of very high risk days. Fire statistics for 1968 to 1994 are correlated with these indices.
Results support a relationship between wildfires and climatic warming.
Sci., Nicholson Bldg., Univ. A systems model of the socio-ecology of the gelada, a primate found in the Ethiopian highlands that is unusually sensitive to ambient temperature, shows that 7 C warming would threaten the survival of the species by confining it to a small number of isolated mountain peaks. Concomitant changes in agriculture would further constrain habitat. Describes a model for investigating terrestrial carbon exchange and its response to climatic variation, based on the processes of photosynthesis, carbon allocation, litter production and soil organic carbon decomposition. Predicts a strong enhancement in net primary production and carbon stocks of terrestrial ecosystems.