Question

In ecological succession, the climax community is best recognized by the following statement
a. P $=$ R
b. P $>$ R
c. P $<$ R
d. P $\neq$ R

Answer 1

Hint: Climax community is the very first community which is in equilibrium with the environment. This is known to be the most stable community which is capable of surviving in the ever-changing environmental conditions. These are known to be the best suited communities as they modify themselves in accordance to their surroundings.

Complete answer:
Now we know that the climax communities are the most adaptable community of any place. The environment of any place keeps on changing from time to time and so do these communities, in order to survive in this environment.

The very first community which inhabits a place is known as the pioneer community. It changes with its environment. This slow and predictable change in the community composition with respect to the environment is known as ecological succession.

The Productivity to the Respiration ratio is equal to one in any stable community. Since, there is no accumulation of resources in this community; therefore, production is equal to consumption.

Since, the climax community is the most stable community hence the Productivity and the Respiration Rates are equal for the climax community.

Hence, the correct answer is option (A).

Note: Here it must be noted that during the ecological succession, the survival of the fittest comes into play and the species which are capable of modifying themselves according to the environment survive while the rest are eliminated. Further, this change in the community of a particular area is continuous and the entire sequence of different communities is known as the sere.