Community Ecology

Question 1

Distinct plant communtiies with little overlap around found where?

Answer 1

1. ecotone- environments changes abruptly \
2. In areas where extremely different habitats come into contact

Question 1

An assemblage of many different species living in the same place at the same time constitute a (n)

Answer 1

community

Question 2

In total of all the ways an organism uses the resources in its environment is called its ecological _______

Answer 2

niche

Question 3

Realized niches are niches that _______

Answer 3

are actually used by a species

Question 4

When two species compete for limited resources, which of the following most likely occurs?

Answer 4

competitive exclusion: one species outcompetes the other, leading to the local extinction of the less competitive species in that area

Question 5

What is a community?

Answer 5

A group of organisms of different species occupying the same area at the same time

Question 6

Resource partitioning is often observed when two species are _____

Answer 6

sympatric

Question 7

plant communities across environmental gradient form________________________________

Answer 7

a continuum of plants

Question 8

The individual ways that an organism confronts the challeneg of survival by resource use is known as____

Answer 8

an organism’s niche

Question 9

What are factors that may result in realized niches being smaller than fundamental niches?

Answer 9

predation,
competition
interspecific interactions

Question 10

competitive exclusion is likely due to ____

Answer 10

niche overlap

Question 11

Interspecific competition is implied when ______

Answer 11

two species share the same limited resources

Question 12

resource partitioning is most likely the result of _____

Answer 12

natural selection to reduce competition

Question 13

Distinct plant communities with little overlap are found where
1.
2.

Answer 13

1.areas with extremely different habitats come into contact
2. ecotones

Question 14

_____ is one organism eating another

Answer 14

predation

Question 15

The process of reciprocal evolutionary change that occurs among groups of species as they interact with one another is termed _____

Answer 15

coevolution

Question 16

Animals that lack chemical defenses often display _____ coloration and usually do not live _____

Answer 16

cryptic, in groups

Question 17

A resemblance of one species to another that functions in predator avoidance is called _____

Answer 17

mimicry

Question 18

_________ : both species gain from the interaction

Answer 18

mutualism

Question 19

_______: one species benefits from the interaction and the other is unaffected

Answer 19

commensalism

Question 20

_______: one species benefits while the other species is harmed

Answer 20

parasitism

Question 21

often times a superior competitor cannot eliminate other species from the community, because its numbers are constantly reduced by _______

Answer 21

predation

Question 22

After a field is cleared and abandoned, it may slowly change and develop into a forest, what is this process called?

Answer 22

succession