A land developer and several ecologists are discussing how a parcel of private land should be developed with housing while saving 20 hectares as natural habitat. The land developer suggests that the 20 hectares be divided into 20 separate 1-hectare areas, spread out across the area. The ecologists suggest that it would be better to have one intact parcel of 20 hectares on one side of the larger area. What is the significance of these different arrangements of the 20 hectares?

#Question id: 10599

#Unit 10. Ecological Principles

In a type I survivorship curve characterized by:

#Question id: 10600

#Unit 10. Ecological Principles

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

#Question id: 10601

#Unit 10. Ecological Principles

following some statement are given about Grime’s triangle that is alternative to r and K selection is correct?

A. Ruderals are adapted to take advantage of habitat disturbance, but these are less competitor 

B. Any species cannot be a good stress tolerator and a good competitor at the same time

C. Mangroves and lichens are good stress tolerant and also good adopted to disturbance

D. Many perennial herbs are good adapted to habitat disturbance, but these are less competitor 

Which one of the following options represents a combination of correct statements?

#Question id: 10602

#Unit 10. Ecological Principles

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

#Question id: 10603

#Unit 10. Ecological Principles

The population size of a bird increased from 600 to 700 in one year. If the per capita birth rate of this population is 0.50, what is its per capita death rate?

#Question id: 10604

#Unit 10. Ecological Principles

Which of the following statement are incorrect?