1. If you had to define ecological succession in your own
words in a 140 character text, how would you define it?
Answers
Answer:
Ecological Succession is a change in the structure of Natural organism or any other kind of matter in Ecosystem. ... Ecological Succession is a very slow process. It is just a process like Evolution. We can't say that Ecological Succession and Evolution are same.
BRITANNICA
Ecological succession
BIOLOGY
WRITTEN BY: John N. Thompson
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Alternative Titles: community succession, ecosystem development, succession
ecological succession
ecological succession
Ecological succession happens when new life takes over an environment. Here, a sunken ship demonstrates the process in a tropical coral reef.
© Sam Cossman (A Britannica Publishing Partner)
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Ecological succession, the process by which the structure of a biological community evolves over time. Two different types of succession—primary and secondary—have been distinguished. Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary succession occurs in areas where a community that previously existed has been removed; it is typified by smaller-scale disturbances that do not eliminate all life and nutrients from the environment.
Primary succession
Primary succession
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants—those that can survive in such an environment. Over hundreds of years these “pioneer species” convert the rock into soil that can support simple plants such as grasses. These grasses further modify the soil, which is then colonized by other types of plants. Each successive stage modifies the habitat by altering the amount of shade and the composition of the soil. The final stage of succession is a climax community, which is a very stable stage that can endure for hundreds of years.
