Large Rodents
Marmots <ul><li>Marmots are large ground squirrels </li></ul><ul><li>Marmots live in burrows </li></ul><ul><li>Marmots hib...
Groundhog <ul><li>Also called Woodchuck or Whistle Pig </li></ul><ul><li>Can climb trees </li></ul><ul><li>Frequently cons...
Beavers <ul><li>Semi-aquatic Rodent </li></ul><ul><li>Largest North American rodent </li></ul><ul><li>Build lodges, dams, ...
Nutria <ul><li>Introduced to US for fur farms and escaped captivity  </li></ul><ul><li>Weigh up to 20 lbs </li></ul><ul><l...
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Large rodents

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Large rodents

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