If asked to find the cause of regular fluctuations in a population's size not associated with seasonal environmental variation, you would probably first seek evidence for: 

#Question id: 10596

#Section 1: Ecology

In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?

#Question id: 10597

#Section 1: Ecology

Growth model of logistic with 1000 carrying capacity and exponential with ideal condition is related to initial population.  Growth rate was observed at population density of 100, 200, 500 and 1000. Following observation is correct?

#Question id: 10598

#Section 1: Ecology

In a wild life reserve, we have two species of mammal. Species A reproduce thrice a year and produced 6-10 offspring per litter. Species B reproduce once in 2-3 year and produced 1-2 offspring during each cycle of reproduction. Which of the following statement is true?

#Question id: 10599

#Section 1: Ecology

In a type I survivorship curve characterized by:

#Question id: 10600

#Section 1: Ecology

Which of the following is not feature of Type II survivorship curve?

#Question id: 10602

#Section 1: Ecology

What are size of female population of butterfly (Breed once and one year life span ) after two year ?

Nt = 20 (initial population ) Nt+2 =?

Ro=1.5 number of female produced per female per generation