population growth Flashcards
population growth
The increase of organisms in a specific population
population
the number of organisms living in an area
population density shows
measurements for population
population distribution shows
information on interacting with the environment and each other
clumped, uniform, random
three types of distribution
when the distribution is evenly separated
uniform
random distribution
randomly spread out
why might a population might be clumped
when there are small portions of food resources and a large number of inhabitants
this distribution happens when population is comfortable
random
a quadrat of 10cmx10cm has 8 worms average. what would be a good estimate for the total number of worms in 3000cm^2 area
240 worms.
N = n1 x n2 / m2 is used for which technique
Mark release recapture
Predict the population density and distribution of humans
density= 7/8 billion or so
distribution = random
how do you calculate population density?
Population Density = Number of People/Land Area.
using the mark release recapture technique, if you had 3 animals marked and released and got 3 more captured with only two of them marked, what is the estimate of the number of individuals in the population
4.5
