#Question id: 10716
#Unit 10. Ecological Principles
The stability of a food web in a community is quantified using certain parameters which are defined below. Which of the following is an CORRECT representation?
A. Community with more complex is more stable
B. Community with more number of alternate is more stable
C. Stability of community is inversely proportional to Connectance
D. Community with higher value of dominax index is more stable
#Question id: 10717
#Unit 10. Ecological Principles
Following represents four different regions, each with four different sites on different-sized mountains. Which of the following statement is correct?
a) In region ‘a’ gamma diversity (γ) is one, and alpha diversity (α) diversity is also 1
b) In region ‘b’ gamma diversity (γ) is 4, and alpha diversity (α) diversity is 1
c) In region ‘c’ gamma diversity (γ) is six, and beta diversity (β) diversity is 2
d) The gamma diversity (γ) are same in region ‘c’ and‘d’.
#Question id: 10718
#Unit 10. Ecological Principles
A researcher collects data on plant species composition in two habitats (P and Q) by using 10 quadrats each in both habitats. She calculates the average a-diversity and the 13-diversity of each habitat from this data (shown below). Which of the following can be inferred about these habitats?
A) Q has greater total diversity (γ) and more heterogeneous than P
B) Q has lower total diversity (γ) and less heterogeneous than P
C) P has lower total diversity (γ) and more heterogeneous than Q
D) P has greater total diversity (γ) and more heterogeneous than Q
#Question id: 10719
#Unit 10. Ecological Principles
#Question id: 10720
#Unit 10. Ecological Principles
What is the Jaccard index between the two communities?
#Question id: 10721
#Unit 10. Ecological Principles
