#Question id: 10668
#Unit 10. Ecological Principles
Following table was shown life table where (S(x)= Live Individual , b(x) = Age specific fertility rate , g(x)= Death rate. What is NET reproductive rate?
#Question id: 10669
#Unit 10. Ecological Principles
The three graphs (A, B, C) show population growth (N) patterns in relation to N or time (t)
Which of the following above graph showing exponential growth?
#Question id: 10670
#Unit 10. Ecological Principles
To estimate the number of foxes in an area, a researcher conducted a mark-recapture survey. In the first survey, he caught and marked N number of foxes. In his second survey a week later, he caught 120 foxes of which 90 were unmarked (recaptures). If you are told that the actual number of foxes in this area is 400, what is value of N in this area?
#Question id: 11509
#Unit 10. Ecological Principles
What is value of net reproductive rate?
#Question id: 11510
#Unit 10. Ecological Principles
Life history trait varies environmental condition, both survivorship and fecundity is habitat dependent in practice but intrinsic rate of increase can change as environmental change. Following life history trait is characteristic of r-selected species?
A) Later age at first reproduction B) Long generation time
C) Multiple broods per life spans D) Large number of offspring per brood
#Question id: 11511
#Unit 10. Ecological Principles
A metapopulation is