[Big Grey Wolf]

Nube, when you do not get many coyotes, know your numbers must be way down on your line. Yes cannot have marten if you have no trees. Mark Boyce biologist/trapper published a paper few years back, conclusion was must have at least 45% tree cover to maintain marten on a trapline.
Lastly agree primary food source for lynx is rabbit. However wolf and lynx also eat anything that moves in the bush, they hunt 365 days/nights a year.