TLS Online TPP Program

#Question id: 11913


During the rate of succession several factors would be observe at the pioneer as well as climax community;

STAGESCHARACTER
A) Pioneer communityi) Biotic Potential low
B) Climax communityii) Root to Shoot ratio is high
iii) Productivity per biomass is low
iv) Net primary productivity is high
v) P/R ratio is greater than 1
vi) Nutrient cycling is closed
vii) Regeneration ability is more
viii) Resistance ability is more

Match the community stages with its given characters;

#10. Ecological Principles
  1. A-i, iii, v, vii ;  B-ii, iv, vi, viii
  2. A-i, iii, vi, viii ;  B-ii, iv, v, vii
  3. A-ii, iii, vi ;  B-i, iv, v, vii, viii
  4. A-ii, iv, v, vii ;   B-i, iii, vi, viii
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TLS Online TPP Program

#Question id: 10716

#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

TLS Online TPP Program

#Question id: 10719

#10. Ecological Principles

Five Hypotheses Explain How Species Richness Affects Community Services, Following statement are given
A) Community services decline with decreased species richness in a stepwise fashion.
B) Species that play the same roles in a community can compensate for each other if some are lost under particular conditions
C) Species richness declines even slightly from its natural levels, community services are reduced immediately
D) Community services change as the number of species increases or decreases, but that the direction of change is not predictable.

TLS Online TPP Program

#Question id: 10720

#10. Ecological Principles

What is the Jaccard index between the two communities?

 Species Community A Community B 
158
236
304
4112
520

TLS Online TPP Program

#Question id: 10731

#10. Ecological Principles

Shannon index of diversity is calculated using the equation below


Community with 5 species and evenness value is one, what will be value of Shannon index

TLS Online TPP Program

#Question id: 10732

#10. Ecological Principles

A community plus the nonliving factors with which it interacts is called a(n)

TLS Online TPP Program

#Question id: 10734

#10. Ecological Principles

This term is a measure of the ability of a system to resist change in the face of outside influences.