Question

Imagine a barren land where once existed a forest. Due to deforestation and fire in that forest, all the species got extinct. A new species came, colonized and expanded in this forest. What kind of succession pattern did this species follow?

(a) Primary succession

(b) Climax succession

(c) Tertiary succession

(d) Secondary succession

The question was posed to me in a job interview.

This is a very interesting question from Ecological Succession in division Ecosystem of Biology – Class 12

Answer 1

Right choice is (d) Secondary succession

To explain: The species in the above example follow a secondary succession. A biological succession occurring in the barren area where there, once life existed is known as secondary succession.