Isle Royale National Park Ecology QUIZ

What is the primary focus of the study conducted on Isle Royale?

• The relationship between gray wolves and moose

• The migration patterns of birds

• The impact of climate change on vegetation

• The water quality of Lake Superior

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What caused the decline in the wolf population on Isle Royale in the 1980s?

• Introduction of a canine virus

• Overhunting by humans

• Lack of food resources

• Severe weather conditions

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NGSS.MS-LS2-4

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How did the National Park Service plan to address the imbalance in the Isle Royale ecosystem?

• By planting more trees

• By building artificial ice bridges

• By relocating all moose from the island

• By introducing 20-30 wolves to the island

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What was the estimated moose population trend after the reintroduction of wolves?

• Doubled

• Remained stable

• Increased by 20%

• Decreased by 14%

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Which major food source for moose has been affected by spruce budworm infestations?

• Balsam fir

• Oak trees

• Pine trees

• Maple trees

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What is a significant threat to the genetic diversity of wolves on Isle Royale?

• Rare formation of ice bridges

• Increased human activity

• Pollution in Lake Superior

• Lack of prey

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How many wolves were initially brought to Isle Royale in 2018?

• Thirty

• Twenty

• Ten

• Four

What is the current population goal for wolves on Isle Royale according to the recovery plan?

• Approximately 30 wolves

• Approximately 50 wolves

• Approximately 100 wolves

• Approximately 10 wolves

What ongoing threat do both wolves and moose face on Isle Royale?

• Air pollution

• Deforestation

• Overfishing

• Climate change

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What pattern can be seen by studying the graph of wolf and moose populations over time?

• As the population of wolves increases so does the population of moose

• When wolf populations are high moose populations are usually low.

• The number of wolves is sometimes greater than the number of moose.

• There is no discernible pattern in the graph of moose and wolf populations over time

Tags

NGSS.MS-LS2-4

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