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Land Productivity Limiting Human Population : Thinking about how we get Calories from the land limits human population densities
相關課程
- For us modern humans with our easy access to the local supermarket
- Its easy to forget that throughout human history and even today
- the amound of humans or human population has been limited by our ability to get calories
- or get human consumable food from the land, so what I want to do in this video is give us a little bit of
- a framework for how humans have been getting
- calories from the land and what that, how that's placed an upper limit on the number of humans
- that can live in any given area, or the population density of humans
- so right over here you have some gentlemen looking for food, they are hunter gathers
- Ill say HG for short, and the H part the hunter part they might actually find some animals
- I think these guys are trying right over here are trying to trap some rabbits
- and the gathering part, they're just literally looking for food
- maybe they find fruit of some sort, or some nuts or some, maybe some roots that are eatable by humans
- so literally just walk around or try to kill things or find things they can consume
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