9.1

Question 1

pop.

Answer 1

all of the organisms in the SAME place at the SAME time that can reproduce together

Question 2

pop density

Answer 2

the # of individuals/area

Question 3

pop distribution

Answer 3

the PATTERN in which organisms of a population are spread throughout the range

Question 4

Clumped, uniform, and random distribution

Answer 4

Clumped: gather in large groups

Uniform: Resources are SCARCE and as a result species are very TERRITORIAL

Random: spread out

Question 5

Why populations might be in either of the three distribution patterns

Answer 5

Uniform: endangered

Random: dif location/spread

Clumped: live together in their comfortable environment

Question 6

Calculate population density

Answer 6

of individuals/Area

Question 7

Set up and calculate population size using quadrats

Answer 7

• look and find area = square quadrant (ex: 2m x 2m)
• look for seg. (row)
• add all ind

Equation:
total ind(size)/(area of quadrant)(seg) = estimated size(ind)/area range (ex: 100m^2)

Question 8

Set up and calculate population size using mark and recapture

Answer 8

pop size:
# of individuals/Area or vol occupied

Mark and recapture:
total # marked/total pop size = # marked in recapture/total capture

Question 9

Predict the population density and distribution of a specific species