To estimate the number of foxes m an area, a researcher conducted a mark-recapture survey. In the fast survey, he caught and marked 90 foxes. In his second survey a week later, he caught 120 foxes of which 40 were marked (recaptures). If you are told that the actual number of foxes in this area is 400, which of the following is a plausible explanation for the anomaly in the researcher's data? 

#Question id: 11411

#Section 5: Applied Ecology & Evolution

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

 A. Rare species are more prone to extinction than common ones.

 B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

 C. Organisms that are specialists are more likely to go extinct

 D. Species with naturally long life spans may be more likely to become extinct

#Question id: 11412

#Section 5: Applied Ecology & Evolution

following is criteria to qualify Hot spot.

a) r-selected species

b) High numbers of endemic species

c) Many different types of habitats

d) k- selected species

#Question id: 11413

#Section 5: Applied Ecology & Evolution

Which of the following is NOT an attribute of a species that makes it vulnerable to extinction?

#Question id: 11414

#Section 5: Applied Ecology & Evolution

Which of the following combination of species feature that affecting a species’ sensitivity to extinction?

#Question id: 11415

#Section 5: Applied Ecology & Evolution

Below is a list of various bird groups, with their typical age at maturity (in years). Which of these would you expect to have the greatest annual survival?

#Question id: 12564

#Section 5: Applied Ecology & Evolution