LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
— ____ is a series of changes that occur in a community over time after disturbances.
A
community succession
B
ecological succession
C
population succession
D
tertiary succession
Explanation: 

Detailed explanation-1: -Ecological succession is the process by which the mix of species and habitat in an area changes over time. Gradually, these communities replace one another until a “climax community”-like a mature forest-is reached, or until a disturbance, like a fire, occurs. Ecological succession is a fundamental concept in ecology.

Detailed explanation-2: -Ecosystem Succession is Based on Ecological Disturbance Fires, floods, wind storms, landslides, and avalanches are some examples of elemental ecological disturbances. While logging, mining, farming and urbanization are examples of man-made disturbances.

Detailed explanation-3: -Disturbances act to disrupt stable ecosystems and clear species’ habitats. As a result, disturbances lead to species movement into the newly cleared area (secondary succession). Once an area is cleared there is a progressive increase in species richness and competition between species takes place.

Detailed explanation-4: -The 5 stages of Ecological Succession include the following – Nudation, Competition and Co-action, Invasion, Reaction, and Climax or Stabilization.

There is 1 question to complete.