Communities

Question 1

What is an ecological community?

Answer 1

All populations inhabiting a given area

Question 2

What are the two types of community interactions?

Answer 2

Interspecific interactions
interspecific competition

Question 3

What is Interspecific interactions?

Answer 3

Relationships within one species in the community

Question 4

What is Interspecific competition?

Answer 4

Two different species compete for the same limited resource

Question 5

What are Ecological Dominants

Answer 5

the few species that are especially abundant in a given community

Question 6

What is a keystone species?

Answer 6

Species whose absence would create significant change in a community

Question 7

What type of animal is most commonly a keystone species

Answer 7

Top predators

Question 8

What is an example of a keystone species?

Answer 8

Starfish

Question 9

What is Biodiversity?

Answer 9

the complexity of species composition in a community

Question 10

What are three factors that contribute to Biodiversity richness?

Answer 10

Species diversity
Geographic diversity
Genetic Diversity

Question 11

What is Species Diversity

Answer 11

The variety of species in a community

Question 12

What is geographic diversity

Answer 12

the species distribution and population size for each species

Question 13

What is Genetic diversity

Answer 13

the genetic variety within each population

Question 14

What is a Habitat

Answer 14

Physical surroundings in which species is normally found

Question 15

What is a Niche

Answer 15

mode of living and resource acquisition for a given organism

Question 16

When does a Competition for resource happen?

Answer 16

In closely related species
Occupying niches that overlap

Question 17

What is the consequence of two species competing for the same limited resource

Answer 17

one species will always drive the other to local extinction

Question 18

What is Predation?

Answer 18

One freestanding organism feeding on parts or all of a second organism

Question 19

Why are predator / prey relationships complex (2)?

Answer 19

the populations are linked
populations may exhibit cyclical changes in abundance or decline

Question 20

What is Parasitism

Answer 20

Predator that feeds on prey but does not immediately kill it

Question 21

What is Co-Evolution?

Answer 21

When competition drives evolutionary change and remarkable adaptations

Question 22

What would be an example of Co-Evolution in a predator-prey relationship

Answer 22

Flatfish ability to camouflage

Question 23

What is Batesian Mimicry?

Answer 23

One species copies the form of another to gain superior protective capability

Question 24

What would be an example of batesian mimicry?

Answer 24

clearwing moth looks like a common yellow jacket

Question 25

What is Mullerian mimicry?

Answer 25

Several species that have protection against predators come to resemble one another

Question 26

What is the benefit of Mullerian mimicry?

Answer 26

fewer individuals of any one species are disturbed or killed

Question 27

True or False: Mutualism & Commensalism interactions are unharmful

Answer 27

True: These interactions do not hard any of the partners in the relationship

Question 28

What is commensalism?

Answer 28

Interaction that may be beneficial to one of the partners

Question 29

What is Mutualism?

Answer 29

interaction that is beneficial to both partners

Question 30

What would be an example of Commensalism?

Answer 30

Birds nesting in trees

Question 31

What would be an example of Mutualism?

Answer 31

ox-peckers riding rhinos (rids them of ticks and flies)

Question 32

In competition one organism _______ while the other ______

Answer 32

is harmed while the other is harmed

Question 33

In Predation and parasitism one organism ___ while the other ____

Answer 33

gains while the other is harmed

Question 34

In Mutualism one organism ____ while the other ____

Answer 34

Gains while the other gains

Question 35

In Commensalism one organism ___ while the other ____

Answer 35

gains while the other is unaffected