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Some species of Arctic birds are threatened by recent sharp

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 07 Jul 2007, 07:30
It should be 'D'.

We have to prove that removing the limitations on hunting will NOT reduce the population of geese.
D explains best. If geese starts recolonizing the areas, which hunters were not using, less number of geese will be hunted.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 19 Oct 2011, 07:08
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antiant wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
(C) The number of snow geese taken by hunters each year has grown every year for several years.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation.


Good question.

"B" tells us that the hunters are not able to hunt even 5% of the snow geese population before the hunting season. Thus, lowering the restriction, or in other words, increasing the percent decrease to any value greater than 5 won't help at all.

Scenario:
100000- Snow geese available
Hunting restriction says: Can't hunt more than 5% of 100000 i.e. 5000 in the hunting season.
Fact: Hunters are not able to reach 5000 target by the close of the hunting season.

Argument: Increase the maximum number of geese that could be hunted to a value greater than 5%, say 10%. Even if the law allows the hunter to hunt 10,000 geese, it wouldn't do any good. If the hunters are not able to reach 5000 hunting target, they will definitely not reach 10,000 target. Thus, "B" undermines the argument/suggestion.

Ans: "B"
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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 19 Oct 2011, 08:05
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antiant wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
(C) The number of snow geese taken by hunters each year has grown every year for several years.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation.



I went with B. Here is my explanation -

The argument is that the 5% restriction needs to be dropped in order for people to be able to hunt more geese, thus reducing their population. If for the last several years that 5% limit has never been reached, that means hunters aren't able to kill enough geese within the full hunting season (because the population now is so large), dropping the restriction would have no effect to the population.

Hope this helps.
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New post 23 Oct 2011, 04:13
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+1 for B. Real good question.

Come to think of it, D at best will strengthen the argument. If new birds have colonized other places than where they usually winter, it should encourage government to lift the restriction on hunting limit to ensure other species' survival rate goes up.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 23 Oct 2011, 09:30
B

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 19 Nov 2011, 14:14
fluke wrote:
antiant wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
(C) The number of snow geese taken by hunters each year has grown every year for several years.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation.


Good question.

"B" tells us that the hunters are not able to hunt even 5% of the snow geese population before the hunting season. Thus, lowering the restriction, or in other words, increasing the percent decrease to any value greater than 5 won't help at all.

Scenario:
100000- Snow geese available
Hunting restriction says: Can't hunt more than 5% of 100000 i.e. 5000 in the hunting season.
Fact: Hunters are not able to reach 5000 target by the close of the hunting season.

Argument: Increase the maximum number of geese that could be hunted to a value greater than 5%, say 10%. Even if the law allows the hunter to hunt 10,000 geese, it wouldn't do any good. If the hunters are not able to reach 5000 hunting target, they will definitely not reach 10,000 target. Thus, "B" undermines the argument/suggestion.

Ans: "B"


In my opinion, B may also infer that hunters are able to hunt till the restricted numbers before the scheduled date. What are your thoughts on the same.
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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 23 Nov 2011, 13:40
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GMATmission wrote:
fluke wrote:
antiant wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.(C) The number of snow geese taken by hunters each year has grown every year for several years.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation.


Good question.

"B" tells us that the hunters are not able to hunt even 5% of the snow geese population before the hunting season. Thus, lowering the restriction, or in other words, increasing the percent decrease to any value greater than 5 won't help at all.

Scenario:
100000- Snow geese available
Hunting restriction says: Can't hunt more than 5% of 100000 i.e. 5000 in the hunting season.
Fact: Hunters are not able to reach 5000 target by the close of the hunting season.

Argument: Increase the maximum number of geese that could be hunted to a value greater than 5%, say 10%. Even if the law allows the hunter to hunt 10,000 geese, it wouldn't do any good. If the hunters are not able to reach 5000 hunting target, they will definitely not reach 10,000 target. Thus, "B" undermines the argument/suggestion.

Ans: "B"


In my opinion, B may also infer that hunters are able to hunt till the restricted numbers before the scheduled date. What are your thoughts on the same.



"B" is the right answer because it undermines the argument which states that if more snow geese are hunted, the threat of displacement for the other species is lowered.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 23 Nov 2011, 15:13
B straight
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New post 23 Nov 2011, 18:03
It should be B.

B states that restriction has been irrelevant in the recent years. Therefore, dropping the restriction will not make a difference.

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New post 23 Nov 2011, 21:56
well the conclusion here is that ...... % of the more number of geese to be hunted is to be raised.

so, the counter should be something like 'no restriction in hunting but population still rising'. I think B come pretty much close to this.

' It has been many years since the restriction lead to the hunting season for snow geese being closed earlier than the scheduled date'

+1 for B.

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New post 01 Dec 2011, 22:22
+1 b

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New post 02 Dec 2011, 20:44
Thanks fluke for explanation. Nice question.
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New post 10 Dec 2011, 13:57
At first I thought it was D as well because if the geese move to another location they will still cause other species to diminish. However this answer makes a condition that if the geese population grows.

Answer B says that hunters usually do not meet the threshold of decreasing the population by 5% before the end of the hunting season. So if the restriction is uplifted hunters will still not be able to meet that threshold.
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New post 11 Dec 2011, 22:00
I voted for D,

But can anyone please share the OA?
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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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I am not so convinced by the phrase "hunting season for snow geese being closed earlier than the scheduled date". Do you mean that NOT hunting til the last scheduled day will secure that the geese hunted does not reach limit? What about the case that they hunt so fast that reach the limit and they have to stop hunting before the scheduled day?
I am so confused with this question. Help me please!

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New post 07 Oct 2012, 17:36
It is not D because the statement does not say that these new grounds are not in the South. If the grounds they are recolonizing are all located in the South, then D has no merit. Even if the grounds were in other regions, the hunters will still be allowed to kill more birds, thus impacting over species.

B - States that the hunters never reach the seasonal hunting limit. So removing the limit will have no impact.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 07 Oct 2012, 22:45
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

The argument is suggesting to increase the allowable hunting percentage of SG so that other species can also flourish.

To weaken this we must prove that even if we increase the percent to lets say 10% it will not help the cause.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese. // If anything this is strengthening the argument by giving us a reason of not to increase the hunting percentage.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date. // No Affect as the duration when we reach 5 % of the SG population is immaterial.
(C) The number of snow geese taken by hunters each year has grown every year for several years. // this actually strengthen the argument saying that the population of SG has actually increased.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.// Correct answer. The argument states that hunting happens in the southern region so even if we increase the hunting percentage it will not affect the overall goal as SG has moved to safer heavens :lol:
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation. // Doesn't matter if the goose have other predators or Not.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 07 Oct 2012, 23:02
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tapdoanhp wrote:
I am not so convinced by the phrase "hunting season for snow geese being closed earlier than the scheduled date". Do you mean that NOT hunting til the last scheduled day will secure that the geese hunted does not reach limit? What about the case that they hunt so fast that reach the limit and they have to stop hunting before the scheduled day?
I am so confused with this question. Help me please!


It's a weaken question. The golden rule is to focus on the conclusion and try to weaken it.
What is the conclusion here? " Clearly, dropping this restriction would allow the other species to recover."

You have to try to weaken it i.e. give reasons why even after dropping this restriction, it is unlikely that other species will recover.

(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date

Option B tells you that the restriction doesn't really matter much. It has been many years since the restriction led to the hunting season closing down early. This means that the population of geese is enough so the restriction hasn't come into effect in the recent years. This implies that even if the restriction is removed, it is likely that there will be no change in the situation. This definitely weakens our conclusion that dropping the restriction will help other species to recover.
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New post 07 Oct 2012, 23:19
Karishma,
Lets say the hunting season is from Jan to June and for many years the hunters reach the 5% goal in april. How does this weaken the argument that If we drop the restriction altogether than it will help other species.

In D , it is stated that they have moved on to a different location so dropping the restriction will have no affect.

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New post 07 Oct 2012, 23:34
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vdadwal wrote:
Karishma,
Lets say the hunting season is from Jan to June and for many years the hunters reach the 5% goal in april. How does this weaken the argument that If we drop the restriction altogether than it will help other species.

In D , it is stated that they have moved on to a different location so dropping the restriction will have no affect.


Option B tells you that the restriction has not come into effect since many years. "It has been many years since ..." means the restriction came into effect many years ago and since then, it has NOT come into effect. So if the hunting season is from Jan to June, it has been closing in June only. This means that even if hunters hunt for the entire hunting season, they still do not reach the 5% limit. So removing the restriction will have no effect.

D only tells you that the increasing population has led to colonizing other grounds too. It just tells you that the population has increased a lot and the geese are spreading. It doesn't say that removing the restrictions will not help.
Understand the argument: Snow geese populate the Arctic (i.e. the north pole region) and are displacing other species there. They move south in winters where there numbers are reduced due to hunting. There are restrictions on hunting. The argument says 'remove these restrictions so that the number of geese reduces more so that other species can survive.

Now your option B tells you that the restrictions are ancient and are meaningful today. They haven't come into effect for many years. Then removing the restrictions won't help, isn't it?
On the other hand, option D says that the geese population has increased and now they are also using those grounds in the southern regions that they had not used for many years. How does it imply that removing restrictions will not help? It doesn't imply that.
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Re: Some species of Arctic birds are threatened by recent sharp   [#permalink] 07 Oct 2012, 23:34

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