Flycatcher birds that migrate from Africa to Europe feed their nestlings mostly with moth caterpillars. The data presented show the mean dates of egg laying, hatching, and fledging of flycatcher young, and the 1980 and 2000 peak mass of caterpillars.

The most likely cause for the shift in caterpillar peak mass is

#Question id: 10621

#Section 2: Evolution

One life history trait that is not characteristic of very small sized organisms is

#Question id: 10622

#Section 2: Evolution

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

#Question id: 10623

#Section 2: Evolution

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?

#Question id: 10624

#Section 2: Evolution

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

#Question id: 10625

#Section 2: Evolution

#Question id: 10626

#Section 2: Evolution

Following is a hypothetical life table of species.

Following some statement is given

A- Proportional of survive is constant over different age group

B- Greater mortality in young age

C. Follow type II survivorship curve

D. Follow type III survivorship curve

Which of the following above statement is correct?