Reading: Decline of the North American Avifauna Flashcards
1
Q
Extinction begins with
A
loss in abundance of individuals that can result in compositional and functional changes of the ecosystem
2
Q
Why did they study birds
A
Birds are excellent indicators of environmental health and our ability to track many species over great spatial distances is good.
3
Q
In which biome did birds populations experience the greatest decrease?
A
Grasslands
4
Q
Proportional loss was greatest in which bird populations?
A
Birds that overwinter in temperate regions
5
Q
Population loss is not restricted to…
A
rare and endangered species, all are declining.
6
Q
Avian population decline will continue without
A
conservation intervention
7
Q
Decline in bird populations may mirror…
A
losses in other parts of the ecosystems (birds are the best studied)
