2.1 Quiz Review Flashcards
What is the definition of population?
all of the organisms in the same place at the same time that can reproduce together
What is the definition of population density
the number of individuals/area
What is the definition of population size?
the total amount of individuals in a population
What is the definition of population distribution?
the pattern in which organisms of a population are spread throughout the range
What is clumped distribution pattern?
when individuals in a population are clustered together, creating some patches with many individuals and some patches with no individuals
What is uniform dispersion?
individuals are spaced evenly throughout an area
What dispersion is territorial birds like penguins?
Uniform
What is random dispersion?
individuals are arranged without any apparent pattern
What dispersion is dandelions
Random
What dispersion is ants on food crumbs
Clumped
The city Auburn has a population size of 145,000 people. The area of the city is 50 square miles. Find population density.
145000/50=2900
Formula for Mark and recapture
total marked/x=total of recaptured w/marks/number of recaptured organisms
Formula for Random Sampling
number of organisms in sample/area of sample=total number of organisms/total area
Random sampling would work BEST if populations are in what distribution?
Uniform