Patterns of Succession

Insect Succession

Two types of succession can be recognized. Primary succession occurs on newly exposed substrates (e.g., lava flows, uplifted marine deposits, dunes, newly deposited beaches, etc.). Primary succession usually involves a long period of soil formation and colonization by species requiring little substrate modification. Secondary succession occurs on sites where the previous community was disturbed and is influenced by remnant substrate and surviving individuals. Although most studies of succession...

Components of Stability

Holling (1973) originally defined stability as the ability of a community to withstand disturbance with little change in structure, whereas resilience was the capacity of the community to recover following perturbation. Webster et al. (1975) subsequently refined the definition of stability to incorporate both resistance to change and resilience following perturbation. Succession is the expression of resilience. However, the criteria for measuring stability remain elusive. What degree of change...

Regulation of Net Primary Productivity by Biodiversity

Ecosystem Stability Biodiversity

The extent to which biodiversity contributes to ecosystem stability has been highly controversial (see Chapter 10). Different species have been shown to control different aspects of ecosystem function (e.g., production, decomposition, and nutrient fluxes), demonstrating that biodiversity in its broadest sense affects ecosystem function (Beare et al. 1995, Vitousek and Hooper 1993, Waide et al. 1999, Woodwell 1993). The presence or absence of individual species affects biotic, atmospheric,...