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Why do migratory species present a special problem for conservation biologists? Select ALL that apply.

A

Their use of multiple habitats requires protection of multiple areas.

B

They may face restrictions to movement along their migratory route, even in areas they do not spend much time in.

C

Alterations of global patterns and cues such as temperature may lead to migratory mistiming.

D

They are more likely to invade other biological communities, causing extinction crises there.

E

Habitat alteration may obscure navigational cues, causing these species to become lost.

F

Learned knowledge of migratory routes can be lost if experienced individuals die, making remaining individuals less able to successfully migrate.

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