2013 Yellowstone Wolf Report Now Available Online

Wotan Howls at SunsetThe National Park Service has published the 2013 Yellowstone Wolf Project Annual Report.  You can read the executive summary here, and download the complete official report here.

2013 Yellowstone Wolf Pack TerritoriesSome highlights:

  • 95 wolves in 10 packs, including 8 breeding pairs, lived primarily in Yellowstone in 2013.  These numbers are similar to previous years.
  • 24% of the wolf population (21 wolves) has been radio collared.
  • Pack size ranged from 2 to 18, averaging 8.6.
  • Most packs had pups, with an average of 4.6 pups per pack.  At least 41 pups survived to the end of the year.
  • State-managed wolf hunts in 2013 did not significantly affect Yellowstone wolves.
  • Incidences of mange decreased, and distemper was not a mortality factor in 2013.
  • Wolf numbers have decreased by about 45% since 2003, likely due to fewer elk.

To learn more visit these links:

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