Aviculture iRAT 3

A population is considered effectively extinct when ____

it shrinks below a minimum viable level

The competitive exclusion principle dictates that no two species may occupy the same ____at the same time and in the same place

niche

Mountain streams in ____ are thought to contain more species of specialist riparian birds than any other river system

the Himalayas

The theory of island biogeography can be helpful when studying ____ as well as islands.

fragmented habitat

According to the theory of island biogeography, bigger islands typically have ___ species than smaller ones.

more

According to your book, communities of birds change as a result of _____ of new species and the extinction of old ones

immigration

Populations grow as a result of increased _____ and/or decreased

productivity/mortality

Which species caused the population of house sparrows to decline?

House Finches

In 1987, only 22 _____ remained in the wild and all were taken into captivity to start an intensive breeding program.

California Condors

Populations that grow slowly, typically have ____

All are correct