Carll & Highley (Carll, C. G. and Highley, T. L., 1999, Decay of wood and wood-based products above ground in buildings) described the fungal survival in dry wood. They observed that the decay fungi could turn to dormant state "if moisture conditions fall much below the range of fiber saturation, and survive in a dormant vegetative state, and reviving once moisture conditions again reach levels around fiber saturation". This phenomenon is term as anabiosis in mycology. The anabiosis ability of wood decay fungi varies with species, can last as long as a decade, and only occurs for well-developed fungi. This is the reason why kiln dried wood is more resistant to fungi occurrence, since the non kiln dried wood might still have dormant and previously grown fungi colonies. They do not have a qualitative model for the survival rate as a function the moisture conditions and duration.