Which among the following is the correct order of predictable and orderly changes in the composition or structure of an ecological community over a period of time?

Answer: [A] Nudation, Migration, Competition, Stablization

The ecological succession refers to more or less predictable and orderly changes in the composition or structure of an ecological community. Its various stages are:

  • Nudation: Succession begins with the development of a bare site, called Nudation (disturbance).
  • Migration: It refers to arrival of propagules.
  • Ecesis: It involves establishment and initial growth of vegetation.
  • Competition: As vegetation becomes well established, grow, and spread, various species begin to compete for space, light and
  • Reaction: During this phase autogenic changes such as the buildup of humus affect the habitat, and one plant community replaces
  • Stabilization: A supposedly stable climax community forms. (wikipedia)

This question is a part of GKToday's Integrated IAS General Studies Module