Midterm #2

Question 1

Population

Answer 1

Group of potentially interbreeding individuals of a single species inhabiting a specific area

Question 2

Populations are determined by _______ between _____ conditions

Answer 2

Interactions

Physiological

Question 3

Ecological filter

Answer 3

Where different species may become established and where they may thrive

Question 4

Population density

Answer 4

Can be absolute density or ecological density

Question 5

Absolute density

Answer 5

Number of individuals of a population per unit area

Question 6

Ecological density

Answer 6

Incorporates concept of niche, # of individuals per unit of suitable habitat

Question 7

Characteristics of population

Answer 7

Death rates, sex rates, immigration, birth rates

Question 8

The __________ limits the geographic distribution of specifies

Answer 8

Physical environment

Question 9

_____ can alter population densities

Answer 9

Dispersal

Question 10

Immigration

Answer 10

Going into a system

Question 11

Emigration

Answer 11

Going out of a system

Question 12

Migration

Answer 12

Seasonal movement of organisms going back and fourth

Question 13

Dispersal

Answer 13

Typically a permanent exodus

Question 14

Expanding populations

Answer 14

Those in the process of increasing their range

Question 15

Metapopulation

Answer 15

Group of sub populations living in patches connected by exchange of individuals

Question 16

Large scale distribution

Answer 16

Individuals in population are clumped

Question 17

Small scale distribution

Answer 17

Individuals within a population In patterns that may be random, regular or clumped

Question 18

Small scale can’t be more than ________

Answer 18

Few hundred meters

Question 19

Random distribution

Answer 19

Individuals have equal probability to occur anywhere

Question 20

Regular distribution

Answer 20

Uniformly spaced through environment

Question 21

Clumped distribution

Answer 21

Find one species there, there will likely to be more

Question 22

Densities decrease with ______ body size of individuals

Answer 22

Increasing

Question 23

Commoners and rarity are influenced by

Answer 23

Population size, geographic range, habitat tolerance

Question 24

Test answer 1

Answer 24

Decrease in concentration gradient

Question 25

Test answer 2

Answer 25

Photosynthesisers

Question 26

Test answer 3

Answer 26

C : N

Question 27

Social monogamy

Answer 27

Song bird female

Question 28

K in k selection

Answer 28

Max population size