The effects of variations in fire intensity, frequency, and seasonality on the dynamics of four dry sclerophyll species, Banksia ericifolia, Petrophile fucifolia, B. serrata, Isopogon anemonifolius, are being investigated. These species have canopy-retained seedbanks enclosed in well insulated fruits. The latter 2 species have the additional ability to recover vegetatively after fire. The effects of exposure to differing fire intensities, on seed viability, post-fire seed release and vegetative recovery from serial buds and lignotubers are being determined along with the response of germination and establishment on ashbeds resulting from different intensities. These experiments are being repeated in different seasons and involve the use of artificial gas burners in field and glass-house situations for the fire treatments. A wide array of age classes are being used (1-30+years) and where applicable, plants representing a cross section of sizes are being treated. Observations after fires occuring in different seasons have shown that germination and establishment are dependent on the timing of favourable available moisture, as mediated by seasonal rainfall and evaporation. Monitoring of survivorship and accumulation of seedbank is being carried out in the array of age classes, over several years. This enables the effect of differing fire frequencies to be assessed.