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This presentation explores the concept of ecological succession, an orderly process of change in community structure and function over time, ultimately leading to a stable ecosystem known as the climax. the causes, types, and processes of succession, as well as the role of initial, continuing, and stabilizing causes. It also covers the differences between autotrophic and heterotrophic succession, and hydrosere, psammosere, and lithosere. based on references from Kaushik and Kaushik's 'Perspectives in Environmental Studies' and Sharma's 'Ecology and Environment'.
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Richard Peters(1806) discussed first plant
succession.
Dawson(1847), Thoreau(1963), Chawles(1899)
also discussed succession.
Clements(1916) popularized and elaborated in
detail about the theory of succession.
Fig: Diagram showing different succesional stages towads
Fig: initial
causes
Fig: Oak forest at climax stage
Types of succession:
Lithosere
Psammosere
Fig: Hydrosere
It is the development of a bare area without any life
form.
It is the successful establishment of one or more
species on the bare area.
Stronger one survive.
Influence of one community to another in number of
ways.
Modification of environment by living communities.
Stabilization of stronger communities reach at climax
stage(more or less stable community i.e. for months,
years, centuries and decades)