Mountain Lion/Cougar/Puma/Catamount(Puma concolor) still exist in various parts of North America, after significant population reduction through hunting and loss of habitat. They tend to be solitary and reclusive animals by nature. In my part of the midwest, they are seldom sighted, but it is a regional news event when they are. One group of the (human) populace finds the idea terrrifying, the other group finds the idea exhilirating. There are concerns about the cats attacking pets, kids, old folks, and especially livestock, though there isn't much evidence so far.
That's all lead up to the idea that a prairie & open woods hunting American Lion (Pantera leo atrox) would scare the bejeebers out of any human, particularly livestock raising farmers. That would have been a war to extirmination, I think.
Hard for full-sized lions to hide.
Firstly, I've seen the American Lion also described as Nagle's Giant Jaguar, so the extinction may have just been of the larger species of Jaguar.
Secondly, the lion retreated from Europe as well as North America in prehistoric times and European fauna was similar to North American. So the retreat of the lion is probably akin to broad brush things like climate change, and not human interaction.
Wolves and lions would probably share the same prey so once humans started also hunting bison, elk, and moose, we might see wolves become practically extinct in places with heavy lion populations. Kind of like how in Siberia where there are large populations of tigers, there are very few wolves.
Kind of like how in Siberia where there are large populations of tigers, there are very few wolves.
That seems odd. I can see a pride of lions easily holding its own (as well as giving back worse) against a pack of wolves. But against a lone tiger, the wolves could simply beat them by harassing them until exhaustion kicked in. It'd be a bit more dangerous than going against a bear perhaps, but they are relentless enough to do it.
How does that go in Siberia? Wolves make themselves the top dogs in Yelowstone, I could see tigers not taking much shit from wolves in Siberia, a couple of casual kills and the wolves would get the message.
Tigers don't necessarily need to kill wolves (though maybe this explains their hatred of dogs described in the book Monster of God). They just need to outcompete them in hunting.
Mind you, wolves can be very flexible in their prey. They could live side by side with lions, hunting smaller prey like white-tailed deer while the lions focus on other surviving megafauna like shrub ox and large animals like elk, moose and bison. In this scenario coyotes would be pushed further to the ecological fringe, perhaps taking a niche as scavengers to lion kills.
Lions used to cover all of Africa apart from the Sahara desert and the Congo rainforest and in Eurasia from Greece to India apart from the Arabian desert, a vast area which has all sorts of habitat types not just savannah. In fact all 4 of the big cats used to inhabit vast swathes of territory in historic times, which makes me think that if given half a chance they will live almost anywhere.