Threats to Biodiversity · NCERT Biology

Which of these is a direct effect of habitat fragmentation on animal populations?

  1. Increased gene flow between populations
  2. Reduction in edge effects
  3. Isolation of small populations leading to inbreeding
  4. Increase in the total carrying capacity of the ecosystem
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Correct answer: Isolation of small populations leading to inbreeding

Fragmentation isolates populations into smaller groups. This lack of movement between fragments leads to inbreeding and reduced genetic variability, making the species more vulnerable to extinction.

Difficulty: Medium Question 16 of 20

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