00:01
All right, so population ecology has a study of how population plants, animals, and other organisms change over time and space and interact with their environment.
00:08
Studying the population growth will understand the causes that changes the population size and growth rates.
00:14
Answer these following questions, define population growth and provide the calculation formula, and then elaborate carrying capacity with detailed explanation using a graph and give an example of a situation.
00:25
So for a, to define population growth, population growth is the increase in the number of the number of the number of the graph.
00:30
Of people in a population or dispersed group.
00:32
Global human population growth amounts to about 83 million annually or 1 .1 % per year.
00:39
And the global population has grown from 1 billion in 1800 to 7 .9 billion in 2020.
00:45
So we can calculate this using these equations here.
00:49
So to find the rate we would take dy over dt and dy equals amount of change and and d t will be the change in time.
01:20
And then we can also find the population growth.
01:32
And that will be d over n equals d t equals b minus d.
01:43
And then we have n is population size.
01:57
We know what d t is.
01:58
It's a change of time on b equals birth rate.
02:10
And d equals death rate.
02:16
So what this equation is doing is taking the birth rate minus the death rate, and that will find the change in the population over the change in time.
02:33
All right, so elaborate carrying capacity with a detailed explanation using a graph, a shaped logistic graph, and give an example of a situation.
02:41
So to define it, here we have carrying capacity, so carrying capacity refers to an environment's maximum load.
03:02
The physical characteristics of the surrounding function as restraint, such as food, water, competition, etc., any sort of limiting factors within a population.
03:12
So as a result, the population limit is likely to be influenced by these factors.
03:17
In essence, food availability is critical element since it influences the size of a species population.
03:23
It does so in such a way that food demand is not, if food demand is not satisfied, for a length of time, population size will gradually decline until resources become enough...