00:01
Okay, we have a multiple part question here looking at the hunter -gatherer or nomadic lifestyle of humans in regards to switching to an agricultural or more sedentary lifestyle.
00:13
So the first part says briefly explain why it changed from a nomadic or hunter -gatherer lifestyle to an agricultural or sedentary lifestyle allowed the early human population to increase.
00:25
So again, in the nomadic or hunter -gatherer, right, we've got a lot of small population.
00:32
Populations, you know, you've got a family group here, a family group here, a family group here, a family group there, family group there, all having to sort of wander in a larger area.
00:46
So we've got a hunter and gather in all of these areas to get enough resources to feed our family.
00:53
They're not modifying the landscape, so they're at the whim of seasonal differences in resources.
00:59
And they're often small groups, therefore, the sort of the ability to help each other out or divide the workload is less than when we switch to an agricultural.
01:14
So if we move to an agricultural or sedentary lifestyle, now we have sort of this larger group of people that manipulate the habitat and have a more consistent source of, resources and they can divide the workload, share the work, and have greater benefits.
01:45
They also don't have to spend as much energy moving around.
01:48
They don't have to spend as much energy finding potential mates.
01:53
And so we get an increase in human population as we increase our resources, make them more consistent and spend less time and energy finding those resources and more devoted towards the propagation of the species.
02:08
The epidemic diseases were not a serious problem to the hunter -gatherer societies.
02:15
It was only when agriculture was adopted.
02:19
Did these become a significant factor in human populations? explain this statement.
02:24
Well, again, if we have small, isolated populations like in the hunter -gatherer that may infrequently or never come in contact with another group of people, the ability of disease to move from one population to the other is diminished.
02:44
When we all of a sudden gather into a sedentary group and you're now interacting quite frequently with multiple groups of people, those diseases have a larger population to infect a more rapid time to infection or movement among the population...