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Isle Royal

Overview
by

chloe chloe

on 27 April 2010

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Transcript of Isle Royal

Double click anywhere & add an idea 1. When was the Bedrock formed supporting Isle Royal? 2. When did the glaciers retreat? 3. When did Native Americans mine copper on Isle Royal? 1 billion years ago 8,000 years ago 3,000 years ago 4. When did Isle Royal become a national park? 1931 5. Where is Isle Royal located? In the middle of Lake Superior, surrounded by 15 miles of water 1. When did the moose arrive on the island? Moose Isle Royal 1900 2. How did they get there? They probably swam 3. How much do moose eat a day 40 lbs per day 4. What is a moose's maximum life span? ~17 5. What is the average life span? <9 6. What percentage of their energy do bull moose use growing antlers? 25% 7. Out of 10 cows,how many will be pregnat going into winter? 8 8. How many cows will have surviving calves by spring? One or two 9. What percent body weight increase do moose put on preparing for winter? 25% 10. How many ticks might each moose have on their bodies in the winter? 80,000 11. What climate conditions favor tick populations? Global warming (or warming)
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