1.

The graph shows species-area relationship:a. If b denotes the relationship on log scalei. Describe a and b. ii. How is slope represented? Give the normal range of slope. iii. What kind of slope will be observed for frugivorous birds and mammals in a tropical forest?b. Species diversity of plants (22%) is much less than that of animals (72%). Analyze the reasons for greater diversity of animals as compared to plants.

Answer»

a. 

i. a is S = CA2 b is log S = log C + Z log A 

ii. Slope is Z (regression coefficient). Its normal value ranges from 0.6 to 1.2.

iii. In frugivorous birds and mammals, value of Z=1.15

b. Reasons for greater diversity of animals are: 

i. Animal are mobile and can avoid predator or unfavourable event. 

ii. Well developed nervous system to receive stimuli against external factors and respond to them.



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