Decomposition and Mineralization

Geographic Distribution Termites

An extensive literature has addressed the effects of detritivores on decomposition and mineralization rates Coleman et al. 2004 . Generally, the effect of arthropods on the decay rate of litter can be calculated by subtracting the decay rate when arthropods are excluded from the decay rate when arthropods are present see Table 14.1 . Detritivores affect decomposition and mineralization processes, including fluxes of carbon as CO2 or CH4, by fragmenting litter and by affecting rates of microbial...

Models of Succession

Tolerance Model Succession

Clements 1916 noted that comparison of successional stages is less useful than is understanding of processes affecting the transitions from one sere to another. Nevertheless, few studies have continued over sufficient periods to evaluate the mechanism s producing successional transitions. Rather, a number of nonmutually-exclusive models, all of which may affect particular transitions to varying degrees, have been proposed and debated widely e.g., Connell and Slatyer 1977, H. Horn 1981, Mcintosh...