A metapopulation is

#Question id: 4705

#Section 2: Evolution

Darwin and Wallace's theory of evolution by natural selection was revolutionary because it ________.

#Question id: 16802

#Section 4: Behavioural Ecology

#Question id: 3320

#Section 2: Evolution

Which of the following population in hardy Weinberg equilibrium?

#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: 12756

#Section 5: Applied Ecology & Evolution

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