Unit 2 Practice Vocab

Question 1

Net import of individuals. Immigration > emigration

Answer 1

sink population

Question 2

Net export of individuals. Emigration > immigration

Answer 2

source population

Question 3

when a population is maintained through continuous migration and doesn’t go extinct

Answer 3

rescue effect

Question 4

a group of several local populations that are linked by immigration and extinction

Answer 4

metapopulation

Question 5

The sinking and mixing action that occurs in many water systems due to the relationship between density and water temperature

Answer 5

turnover in lakes

Question 6

when rising air on the windward side of a monition results in the loss of moisture, causing dry air on the downwind side

Answer 6

rain shadows

Question 7

a reduction in resource acquisition rate (feeding, foraging, parasitism, nutrient uptake) due to the action or presence of another individual that seeks to acquire the same resources

Answer 7

competition

Question 8

When one species or individual consumes a limiting resource, such that less of that resource is available for other species or individuals.

Answer 8

resource competition

Question 9

a positive association between two species, where the two species benefit from each other

Answer 9

mutualism

Question 10

When species occur in different, generally non-overlapping areas

Answer 10

allopatry

Question 11

The close resemblance of a palatable unprotected species to an unpalatable or protected species.

Answer 11

batesian

Question 12

competition in which one individual or species directly prevents another from using a resource

Answer 12

Interference competition

Question 13

the relationship between food density and an individual’s consumption rate

Answer 13

functional response

Question 14

a line connecting points of equal value on a graph.

Answer 14

isocline

Question 15

Species that consume only part of living prey, but generally do not kill the prey

Answer 15

parasites or grazers

Question 16

large geographic areas that are characterized by distinct types of plant species, maintained by the climate of the region

Answer 16

biome

Question 17

the evolution of a physical or behavioral trait to be different from other species in order to coexist

Answer 17

character displacement

Question 18

targeting increasingly large quantities of smaller species of fish with less commercial value

Answer 18

fishing down

Question 19

introducing a predator of a pest in effort to keep its abundance low (used as an alternative or in combination with pesticides)

Answer 19

biological control

Question 20

an approach to pest management involving prevention, observation, and intervention to minimize the use of pesticides

Answer 20

integrated pest management

Question 21

Predator that removes only part of many prey, generally not killing its prey

Answer 21

grazer or herbivore

Question 22

The ability of the predator to turn prey they have consumed into offspring

Answer 22

reproductive efficiency

Question 23

the study of the incidence, distribution, and possible control of diseases

Answer 23

epidemiology

Question 24

the amount of time it takes a predator to find, capture, and consume a prey item.

Answer 24

handling time

Question 25

when two or more unprofitable (e.g. distasteful) species mimic each other’s warning signals to their mutual benefit in warning predators

Answer 25

mullerian mimicry

Question 26

Changes in behavior or physical traits of two competing species to become more different in order to reduce competition

Answer 26

niche divergence

Question 27

When two or more species exist in the same geographic area and thus frequently encounter one another

Answer 27

sympatry

Question 28

a highly infectious and usually fatal viral disease of rabbits, used in the biological control of invasive rabbits in Australia

Answer 28

myxomatosis