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Boreal owls range over a much larger area than do other owls

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Re: Boreal owls range over a much larger area than do other owls [#permalink]

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New post 23 Aug 2017, 04:20
Solution: The small mammals on which owls prey are relatively scarce in the forests where boreal owls live. That is why boreal owls range more extensively than do other, similarly sized owls in search of food.

B confirms the statement - It indicates that abundance of food for the boreal owls' small-animal prey in an area correlates with a smaller range for the boreal owls there.
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Re: Boreal owls range over a much larger area than do other owls [#permalink]

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New post 07 Sep 2017, 09:59
Boreal owls range over a much larger area than do other owls of similar size. The reason for this behavior is that the small mammals on which owls feed are especially scarce in the forests where boreal owls live, and the relative scarcity of prey requires the owls to range more extensively to find sufficient food.

KEY TO NOTE: BOREAL OWLS NEED TO RANGE OVER A LARGER AREA TO EAT. THIS IMPLIES THAT OWLS OF SIMILAR SIZES LIVE IN AREAS WHERE FOOD IS MORE ABUNDANT, SO SIMILAR OWLS DO NOT NEED TO RANGE OVER AS LARGE A AREA.

Which of the following, if true, most helps to confirm the explanation above? --> STRENGTHEN

A. Some boreal owls range over an area eight times larger than the area over which any other owl of similar size ranges
- Only new info that is added here is that the range of boreal owls is 8x larger than any other owl of similar size. Who cares if its 5x or 20x?

B. Boreal owls range over larger areas in regions where food of the sort eaten by small mammals is sparse than they do in regions where such food is abundant.
- Ah ha! You can find this in the notes above. Basically says Boreal owls NEED to range over larger areas where food is scarce...and if this were not the case (if boreal owls lived in areas where food was more abundant), they would range over a smaller area

C. After their young hatch, boreal owls must hunt more often than before in order to feed both themselves and their newly hatched young
- Isn't this the case with ALL owls who have hatchlings? (All GOOD owl parents catch food for their young) ;)

D. Sometimes individual boreal owls hunt near a single location for many weeks at a time and do not range rather than a few hundred yards.
- That sucks, I know if I waited weeks to eat, I would get pretty grumpy...yes, I know this whole thing sounds ridiculous. So what? What is this adding to the argument? How does this strengthen their ability to find food in their environment?

E. The boreal owl requires less food, relative to its weight, than is required by members of other owl species.
- Who cares about the relative amount of food the boreal owl needs as compared to members of other owl species?

Kudos please if you find this helpful :)
Re: Boreal owls range over a much larger area than do other owls   [#permalink] 07 Sep 2017, 09:59

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