Question

write a long note on succession. please fast

Answer 1

Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction.[1]

The community begins with relatively few pioneering plants and animals and develops through increasing complexity until it becomes stable or self-perpetuating as a climax community. The "engine" of succession, the cause of ecosystem change, is the impact of established species upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one's own environment.[2]

It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe landslide, or by some form of disturbance of a community, such as from a fire, severe windthrow, or logging. Succession that begins in new habitats, uninfluenced by pre-existing communities is called primary succession, whereas succession that follows disruption of a pre-existing community is called secondary succession.

Answer 2

succession is a sequence of changes in the community structure of an ecosystem over a period of time community changes Alter The ecosystem in ways that favours the competitors and species replace the TD stresses in some but predictable Manna until a stable self sustaining pranks community is raised succession is a kind of community relay in which assemblages of plants and animals replace the other one in a sequence that is at least some but predictable the precise changes occurring during succession or as diverse as the environment in which succession occurs but certain general speeches can be recognised in each case succession is initiated by few hardly Invaders ka pioneers and it ends with a diverse and relatively stable Climax community .