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Biology · BIODIVERSITY AND CONSERVATION

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Which of the following ecological phenomena provides an authentic example of co-extinction?

  1. Extinction of an obligate monophagous parasite following the demise of its specific host fish
  2. Displacement of native herbaceous plants by invasive Parthenium hysterophorus
  3. Extinction of native herbivorous cichlids due to the predatory Nile perch in Lake Victoria
  4. Elimination of ground-nesting birds following clearing of the Amazon rain forest

Correct answer · Option 1

Extinction of an obligate monophagous parasite following the demise of its specific host fish

Explanation

When a host fish species becomes extinct, its unique assemblage of parasites also meets the same fate; this obligatory loss exemplifies co-extinction.

Related questions

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