#Question id: 10711
#Unit 10. Ecological Principles
Following table shows the number of individuals of five tree species in a community
| Tree Species | No. of Individuals |
| A | 50 |
| B | 20 |
| C | 20 |
| D | 10 |
Based on the above, the Simpson’s index and Shannon weaver of the community will be respectively?
#Question id: 10712
#Unit 10. Ecological Principles
Researcher study the diversity of 4 communities, following is relative abundance of each species at different community? ( ln .5 = -0.69 , ln .25= -1.38, ln .12= -2.12)
| Species | Community A | Community B | Community C | Community D |
| A | 10 | 10 | 20 | 35 |
| B | 10 | 10 | 00 | 05 |
| C | 10 | 10 | 20 | 00 |
| D | 00 | 10 | 00 | 00 |
Which of the following is decreasing order of their Shannon weaver diversity index of community?
#Question id: 10713
#Unit 10. Ecological Principles
Following is sampling data of five species in five quadrate is represent. Which of the following is a correct order of decreasing abundance?
#Question id: 10714
#Unit 10. Ecological Principles
What is value of Gini-simpson indices of following community?
| Species identity | Number of individuals |
| P | 140 |
| Q | 50 |
| R | 2 |
| S | 2 |
| T | 2 |
| U | 2 |
| W | 2 |
#Question id: 10715
#Unit 10. Ecological Principles
Following table shows the presence (+) or absence (-) of five species in three communities (A, B, C):
| Species | Community A | Community B | Community C |
| 1 | 10 | 0 | 0 |
| 2 | 09 | 20 | 30 |
| 3 | 11 | 18 | 50 |
| 4 | 10 | 22 | 0 |
| 5 | 10 | 20 | 10 |
Based on the above, which of the following is the correct order of diversity strength communities?
#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