2.1 Pop Eco Flashcards
What is a population
The amount of the same species organisms in a defined area.
What is population density
How many organisms are in a certain area of space
what is population dispersion
The way Organisms settle and grow in relation to each other.
What is clumped population dispersion
Organisms gather around in groups or packs close to each other.
What is uniform population
All organisms are all equally distanced from each other.
What is a random population
A population in which organisms are spaced from one another with no rhyme or reason.
How do you calculate population density
Through multiple methods like Quadrats, mark and recapture, and sometimes just counting.
How do you measure pop density through Quadrats
You count the amount of organisms in the quadrat, then find how many quadrats fit into the total size of a area, then multiply that by the population in a quadrat. Works best with uniform populations.
How do you calculate using mark and recapture?
You mark a certain amount of animals then release them into the wild. Then capture random animals, find how many are marked and how many are not. Multiply the original few you marked and the unmarked, then divide by the amount of RECAPTURED marked organisms.
