Populations

Question 1

What is the definition of population?

Answer 1

Population is a group of organisms of a species that live in the same place at the same time and interbreed

Question 2

What is the definition of population density?

Answer 2

Population density is the amount of individuals in a species in a given area

Question 3

What is the definition of population distribution?

Answer 3

Population distribution is a measure of how spread out a population is in any given area

Question 4

What is clumped distribution?

Answer 4

A clumped distribution is individuals that are grouped together. The organisms might do this because there is safety in numbers or social interactions.

Question 5

What is random distribution?

Answer 5

A random distribution is individuals that are spaced randomly. This might happen when a plant cannot control where its seeds grow or if resources are abundant throughout the area

Question 6

What is uniform distribution?

Answer 6

A uniform distribution is individuals that are spaced evenly apart. This happens when there is low resources or if competition is high between the organisms

Question 7

What is the formula to calculate population density?

Answer 7

The number of organisms/the land area

Question 8

How to set up and calculate population size using quadrats?

Answer 8

Calculate the average number found per quadrat, then multiply by the habitat’s total area for an estimate.

Question 9

How to set up and calculate population size using mark and recapture?

Answer 9

total # marked/total pop. size (x) = # marked in recapture/ total recaptured

Question 10

How to predict the population density and distribution of a specific species?

Answer 10

know the total amount of organisms living in an area and divide that number by the amount of area