Survival is specific to the environment - I'm sure my skills wouldn't get me far anywhere outside California, say, Africa....

Search and Rescue teams get survival training (not that we will ever need it if we follow instructions and stick with the team).

What those skills don't help is the fact that aside from living on fish and wild onions, you really can't forage and survive in the Sierra Nevada. Not enough to eat there. I suppose trapping pika or marmot would help but, simply being extra cautious in preventing injury, not going climbing or glacier/snowfield walking alone, and leaving a detailed itinerary behind should do the heavy lifting in the situation.