The following graph shows the species–area relationship. Answer the

1.	The following graph shows the species–area relationship. Answer the following questions as directed.a. Name the naturalist who studied the kind of relationship shown in the graph. Write the observations made by him. b. Write the situations as discovered by the ecologists when the value of ‘Z’ (slope of the line) lies betweeni. 0.1 and 0.2 ii. 0.6 and 1.2What does ‘Z’ stand for?c. When would the slope of the line ‘b’ become steeper?
Answer» a. lexander von Humboldt. He observed that within a region, species richness increased with increasing explored area but only up to a limit. b. i. The slopes regression lines are similar when unaffected distribution in an area is analysed. ii. The slope of regression is steeper when we analyse the species area relationship among very large areas like entire continent. Z (slope of the line) is the regression co-efficient. c. If species richness is more, i.e., in the range 0.62-1.2.

The following graph shows the species–area relationship. Answer the following questions as directed.a. Name the naturalist who studied the kind of relationship shown in the graph. Write the observations made by him. b. Write the situations as discovered by the ecologists when the value of ‘Z’ (slope of the line) lies betweeni. 0.1 and 0.2 ii. 0.6 and 1.2What does ‘Z’ stand for?c. When would the slope of the line ‘b’ become steeper?

Answer»

a. lexander von Humboldt. He observed that within a region, species richness increased with increasing explored area but only up to a limit.

i. The slopes regression lines are similar when unaffected distribution in an area is analysed.

ii. The slope of regression is steeper when we analyse the species area relationship among very large areas like entire continent.

Z (slope of the line) is the regression co-efficient.

c. If species richness is more, i.e., in the range 0.62-1.2.