Introduction :
The separation of an ecosystem into small pieces of land is known as habitat fragmentation. Edge effects are the various environmental conditions that occur along the boundaries of an ecosystem. Edge effects do not always create a disadvantage for all species. Some species find these conditions favorable and they thrive.
Answer to Problem 20A
Correct answer :
The correct answer is option (B) B.
Explanation of Solution
Explanation/justification for the correct answer :
Option (B) B. The habitat of image B has the greatest impact due to edge effect. The smaller habitat size has the greater percentage of the habitat which is subject to edge effect. The edge effect of habitat B is greater than habitat A. So, the correct answer is option (B).
Explanation for incorrect answer :
Option (A) A. The habitat size of image A is equal to the habitat size of image B. But in the image B the habitat has more patches that lead to edge effects. So, this is an incorrect option.
Option (C) A and B equally. The habitat size of A and B is equal but the impact of edge effect on habitat B is more that habitat A. So, this is an incorrect answer.
Option (D) Neither A or B. The edge effect of habitat B has the greatest impact. So, this is an incorrect answer.
Chapter 5 Solutions
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