Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i) P is closer to the mainland than Q

(ii) P is further away from the mainland than Q

(iii) P has higher speciation rates than Q

(iv) P has lower speciation rates than Q

#Question id: 11657

#Unit 10. Ecological Principles

In the following diagram, three models succession are represented. In this diagram A,B,C and D are the species  and arrows indicate replaced by

Based on the above, which statement is correct.

#Question id: 11658

#Unit 10. Ecological Principles

Directional community changes due to the cause of succession, factors involve such as

#Question id: 11659

#Unit 10. Ecological Principles

Which of the following steps are involved in stabilization of successful community?

#Question id: 11660

#Unit 10. Ecological Principles

Which of the following statements about the succession is true?

#Question id: 11661

#Unit 10. Ecological Principles

Autogenic factors results from the community and its organism for example filling in the pond by the dead organism from the pond itself. It included several other factors except____

#Question id: 11662

#Unit 10. Ecological Principles

During the successional process generation of community through the short time period successional process as well as long time successional process;

a) During short time period evolve pioneer community from the climax community

b) During short time period generation of the microbial community 

c) During long time period generation of end community (forest) from the pioneer community

d) During long time period generation of the microbial community