Kate: The recent decline in numbers of the Tennessee warbler, a North American songbird that migrates each fall to coffee plantations in South America, is due to elimination of the dense tree cover that formerly was a feature of South American coffee plantations.
Scott: The population of spruce bud worm,the warbler's favorite prey in North America has been dropping.This is a more likely explanation to warbler's decline.
which of the following,if true,most seriously calls Scott's hypothesis into question?
a.The number of the Baltimore oriole, a songbird that does not eat bud worms but is as dependent on South American coffee plantations as is the Tennessee warbler, are declining.
b.The spruce bud worm population has dropped because of disease that can infect bud worms but not Tennessee warblers.
c.The drop in the population of spruce bud worm is expected to be only temporary.
d.Many Tennessee warblers have began migrating in the fall to places other than traditional coffee plantations.
e.Although many North American songbirds have declined in numbers, no other species has experienced as great a decline as has Tennessee warbler.
Scott: The population of spruce bud worm,the warbler's favorite prey in North America has been dropping.This is a more likely explanation to warbler's decline.
which of the following,if true,most seriously calls Scott's hypothesis into question?
a.The number of the Baltimore oriole, a songbird that does not eat bud worms but is as dependent on South American coffee plantations as is the Tennessee warbler, are declining.
b.The spruce bud worm population has dropped because of disease that can infect bud worms but not Tennessee warblers.
c.The drop in the population of spruce bud worm is expected to be only temporary.
d.Many Tennessee warblers have began migrating in the fall to places other than traditional coffee plantations.
e.Although many North American songbirds have declined in numbers, no other species has experienced as great a decline as has Tennessee warbler.
