I will tell the rest of my class and who ever reads this blog form around the world what we did in class today. We started of with taking notes of, of a power point our teacher made.
This blog post will be a basic over view of how a population works. About 60 years ago a fish farmer hydraulic plants in a canal. These plants, witches were brought to America form Asia reproduced very fast. This is what’s now known as a invasive species.
Geographic range- a species geographic range describes were its actually is and what it’s surroundings are
Growth rate- a populations growth rate tells you the amount of species that are increasing and decreasing in population.
Density and distribution- Population is considered to be the number of something in one area. But when compared to density, density is the amount of something in one area specifically. This also comes into play with the growth rate. Witch is calculated by keeping track of the amount of a certain thing that is in a area and how it grows or decreases in population.
Birth rate and death rate- this is the ration in witch a specific species dies and then is born.
Immigration and emigration- this is when a cretin species either moves into a new area or leaves the specific area or place.
This goes a long with the wolf and dear experiment that was on our homework. The information talked about how fast the population of a group of dear would rise and decrease if left a lone on a island. It shows how many are born and how many die. But u notice how everything I have said and all the info I have given ties together when u mix the Wolfs in with the deer. you see that as the wolf population increases the deer population decreases. The birth rate is not high enough not keep up with the wolves eating the deer. The growth rate also comes into play when u notice how the populations of the deer and the wolfs intertwine. Ad wolfs go up deer go down. When deer go down wolfs go down. Then the deer go back up as do the wolfs ect….
is very nice!!!!
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