Read the full article (and see a photo of a wolf with mange) here:
Mange changes Yellowstone wolves’ hunting, travel and food needs
By Brett Finch, Star Tribune
During Yellowstone National Park’s frigid winters, small mites can have a big effect on the wolves they invade, altering the times they hunt, how many calories they need to consume and how far they travel.
http://trib.com/news/state-and-regional ... 365ed.html
According to the article, the wolves that have mange will travel less; some will avoid going out at night entirely. It makes sense that wolves are losing heat when they are afflicted with mange, but I didn't consider the effects that mange would have specifically on travel. Very interesting!