Im not a tracker, but I play one in the woods. Im also not a biologist, because I never finished my last semester of my degree because of the fabulous vacation to iraq I received from Uncle Sam. But I know a lot of stuff
primary difference b/t cat and dog tracks, besides the claws (cause sometimes cats have their claws out) is the overall shape of the footprint. Canids are generally oval shaped. Felines are round. I think you found you some lion tracks in that picture man. completely awesome.
to share a story; the teaching assistant back in those biology days also worked for the USFS. He did a lot of surveys. He told us once that they were 'cornered' by a mountain lion during a nighttime survey. They could hear it in the scrub oak, and he specifically told us that 'conventional wisdom' said that mountain lions do no come into 'scrub component'. So much for CW. They got a call out and a deputy came to help them get to their cars.
As far as any predator going where their food is....well isnt that obvious? wouldnt you? I can suggest a book given to me in high school; Grizzly Years by doug peacock. He travels the grizzly backcountry for years with few incidents. One of his tactics was to bivouac in the most dense stand of trees and shrub he could find. Not in the meadows where a griz may be rooting for bulbs or rodents, not near a stream where they may come for berries or other food. overall good read