Question

5 ecological succession: definition, types, concept and process (hydrosere, xerosere and lithosere).

Answer 1

Answer:

Hydrosere is a plant progression in which an open freshwater naturally dries out, steadily becoming a swamp, marsh, etc. and in the end woodland. Xerosere is the succession of environmental communities which originated in an enormously dry habitat such as a sand desert, sand dunes, a salt desert or a rock desert.

Answer 2

Answer:

The process of Ecological Succession describes how a region's species and habitat mix evolves over time.

Explanation:

• The process-

1. The process of natural communities gradually replacing (or "succeeding") one another is known as ecological succession. For instance, if an old farm field in the Midwest of the United States is abandoned and left alone for many years, it eventually transforms into a forest as trees entirely occupy the field.
2. Every plant community fosters the circumstances necessary for other plant communities to flourish. For instance, early invaders like grasses may enrich the soil with nutrients, and later invaders like shrubs and trees may provide cover and shade. When a "climax" community develops, succession temporarily halts; these communities maintain a state of relative balance until a disruption triggers the succession process to resume.

• The types-

1. Primary succession and secondary succession are the two main categories of ecological succession.
2. When a new piece of land is produced or is first exposed, primary succession occurs. This may occur, for instance, when lava solidifies and forms new rocks or when a glacier recedes and reveals bare rocks.
3. When a climax community or an intermediate community is affected by a disturbance, secondary succession occurs. The succession cycle is restarted, but not to the start because the soil and nutrients are still there.

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