Review the formula for effective population size. Imagine a population of 1,000 small rodents. Of these, 300 are breeding females, 300 are breeding males, and 400 are nonbreeding  juveniles.  What is the effective  population size?

TLS Online TPP Program

#Question id: 10622

#Section 1: Ecology

For a species having logistic growth, if K = 4000 and r = 0.25, the maximum growth rate will be

TLS Online TPP Program

#Question id: 10623

#Section 1: Ecology

What is the population growth per unit of time when r = 0.50, N = 100 and K = 1000. What is value of per capita growth rate when population growing at maximum rate?

TLS Online TPP Program

#Question id: 10624

#Section 1: Ecology

Limited resources cause tradeoff between investment in reproduction and survival. There is two Animal species with similar size present at same habitat but different their life history as a following. 

A Species   -   Later age at first reproduction

B Species –    Large clutch size and low survival of offspring and adult

There is above species should be

TLS Online TPP Program

#Question id: 10625

#Section 1: Ecology

Find out density of three different fish population by mark recapture method? Following is a density of capture and recapture fish? 

Which of the decrease order of their relative abundance? 

TLS Online TPP Program

#Question id: 10629

#Section 1: Ecology

Following are density dependent factors

A- Food                            B- space

Which of the following animal and their most important density dependent limiting factor are correct?

TLS Online TPP Program

#Question id: 10630

#Section 1: Ecology

Following is relation between population size with various strategies of species, following is correct figure?