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GRIZZLEY BEAR FACTS THE BEAR NECCESSITIES

Explore fascinating facts about grizzly bears including history, habitats, food habits, threats, and recovery efforts. Learn about their population, enemies, and where to find more information online.

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GRIZZLEY BEAR FACTS THE BEAR NECCESSITIES

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  1. GRIZZLEY BEAR FACTSTHE BEAR NECCESSITIES Karen Martin Integrating Technology into the Science Classroom

  2. GRIZZLEY BEAR FACTSTHE BEAR NECCESSITIESContents • Historical Facts • Basic Facts • Habitat Facts • Food Facts • Population Facts • Threat Facts • Enemy Facts • Recovery Facts • Where To Go For More Facts (Web Sites)

  3. Historical FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • Lewis & Clark killed 7 grizzly bears on their expedition • There was an estimated 50,000 grizzly bears at the time of the Lewis & Clark expedition • The grizzly bear has been designated “threatened” since 1975

  4. Basic FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • The grizzly bear is America’s largest carnivore • The grizzly bear stands up to 7 feet tall and weighs 300 to 800 pounds (average is 400 to 500 pounds) • Adult grizzly bears measure from 6 to 8 feet long

  5. Habitat FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • The types of terrain grizzlies loves is alpine meadows, pine, cedar and fir forests, glacial lakes and fast flowing streams flowing into lush river valleys • The remaining bears are concentrated in and around Yellowstone National Park, Glacier National Park and the Bob Marshall Wilderness • Grizzly bears are solitary and live in densely vegetated and remote areas

  6. Food FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • A grizzly’s staple food is: • Salmon • Roots • Berries • Nuts • Elk • Deer • Insects

  7. Population FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • There are fewer than 1,000 to 1,100 grizzly bears in the lower 48 states • There are an estimated 400 to 600 grizzly bears in Yellowstone National Park • The number of adult breeding females has jumped from less than 30 in 1983 to over 100 today

  8. Threat FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • The major threats to grizzly bear recovery are: • Habitat loss due to loss of food • Private land development • Human caused mortality • Resource development

  9. Threat FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • The actions taken to counter threats to the grizzly bear: • Close monitoring • Responding to the needs of the bears • Educating the public • Funding

  10. Enemy FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • The most significant natural enemy to grizzly bears is humans • 79% of grizzly bears that die prematurely do so at the hands of humans (Dr. David Mattson-U.S. Geological Survey’s Biological Resources Division).

  11. Recovery FactsGRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • There are substantial efforts being made to save the grizzly bear. Examples of this include efforts in Bitterroot Montana and Yellowstone National Park. These programs seek to re-introduce the grizzly bear into areas it once flourished in.

  12. Where To Go For More Facts(Web Sites)GRIZZLEY BEAR FACTS-THE BEAR NECCESSITIES • www.mesc.usgs.gov/yellowstone/IGBST_home.htm • www.R6.fws.gov/endspp/grizzly/index.htm • www.defenders.org/defenders/wildlife/grizzly/bitter.html • www.nps.gov/yell/nature/animals/bears/index/htm

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