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Large rodents
Large rodents
Large rodents
Large rodents
Large rodents
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  • 1. Large Rodents
  • 2. Marmots
    • Marmots are large ground squirrels
    • Marmots live in burrows
    • Marmots hibernate in winter
    • Marmots eat grass, berries, lichen, roots, seeds, nuts, and flowers
    • Occasionally eat insects and grubs
    • The only marmot native to Virginia is the groundhog , also called a woodchuck
  • 3. Groundhog
    • Also called Woodchuck or Whistle Pig
    • Can climb trees
    • Frequently considered pests
      • Eat cultivated plants
      • Leave holes in pastures
    • Sexually mature at 15-18 mos
    • Breeding season begins after hibernation
    • Male leaves the den after young are born in May
    • Young leave den at 5-6 wks
  • 4. Beavers
    • Semi-aquatic Rodent
    • Largest North American rodent
    • Build lodges, dams, & canals
      • Barrier against predators
      • Lodges have underwater access
    • Herbivores – eat new growth on trees & leaves, water plants, seeds, & berries
    • Do not hibernate, but store piles of sticks for food in winter
    • Generally nocturnal
    • Beavers are monogamous & mate for life
    • Mate 1x year in late winter, young born in late spring, 2-7 kits per litter
    • Trapped for luxurious fur
  • 5. Nutria
    • Introduced to US for fur farms and escaped captivity
    • Weigh up to 20 lbs
    • Live in marshes & estuaries
    • Prolific breeders
      • Sexually mature at 6 mos
      • Breed all year
      • Can have 2-3 litters/year & up to 13 young per litter
    • Eat water plants – up to 5 lbs per day
    • Eat marsh grass roots & cause sediment damage to estuaries
    • Eradication efforts are underway
      • Approx 10,000 are harvested each year
      • Population continues to grow
    • View Slide Show
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