Q. Which of the following is/are characteristic/s of “ecotone”?
1.It may be very narrow or quite wide.
2.It is a zone of tension.
3.Well-developed ecotones contain some organisms which are entirely different from those of the adjoining communities.
How many of the statements given above are correct?

[A] Only one

[B] Only two

[C] Only three

[D] None

Answer: C
Notes:

Explanation: Characteristics of Ecotone:

  • It may be very narrow or quite wide. It has conditions intermediate to the adjacent ecosystems. Hence it is a zone of tension.
  • It is linear as it shows progressive increase in species composition of one in coming community and a simultaneous decrease in species of the other outgoing adjoining community.
  • Well-developed ecotones contain some organisms which are entirely different from those of the adjoining communities.

Source: Shankar IAS

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