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Significance of Z Value in Species- Area Relationship

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Question

What is the significance of the slope of regression in a species-area relationship?

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Solution

When the analysis of species-area relationship is done, amongst small areas, the values of slopes of regression are similar, irrespective of the taxonomic group or the region.
Nevertheless, when such an analysis is done amongst large areas, like continents, the slope of regression would be much steeper.

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What is the significance of the slope of regression in a species − area relationship?

Q. The species-area relationship is expressed by the equation: log S = log C + Z log A.
What does S, C, Z and A represent?

In the given equation relating to species area relationship, what does ‘z’ stands for?

log S = loc C + zlog A

Q. Statement 1: If the species-area relationships are analysed among very large areas like entire continents, the value of Z i.e., the slope of line lies in the range of 0.1 to 0.2

Statement 2: The value of Z i.e., the slope of the line of species - area relationship lies in the range of 0.6 to 1.2 when analysis is done among small areas.

Q. Assertion :If the species-area relationships are analysed among very large areas like the entire continents, the value of Z, i.e., slope of line lies in the range of 0.1 to 0.2. Reason: The value of Z, i.e. slope of line of species area relationships lies in the range of 1.6 to 1.2 when analysis is done among small areas.

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Significance of Z Value in Species- Area Relationship

Standard XII Biology

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