Ecological succession - Environment & Biodiversity
Q. Which of the following statement/s is/are correct regarding ecological succession?
1) Ecological succession is brought about both by the activities of the communities as well as by the physical environment in that particular area.
2) Primary Succession is faster than Secondary Succession.- Published on 28 Aug 15a. Only 1
b. Only 2
c. Both 1 and 2
d. None of the above
ANSWER: Only 1
The process by which communities of plant and animal species in an area are replaced or changed into another over a period of time is known as ecological succession. Primary succession takes place an over a bare or unoccupied areas such as rocks outcrop, newly formed deltas and sand dunes, emerging volcano islands and lava flows as well as glacial moraines (muddy area exposed by a retreating glacier), where no community has existed previously. A secondary succession is relatively fast as the soil has the necessary nutrients as well as a large pool of seeds and other dormant stages of organisms.
