Lecture 24: Community Ecology

Question 1

predation

Answer 1

one thing eats another thing–>one participant wins, one loses

Question 2

competition

Answer 2

two or more individuals attempt to use the same resource

Question 3

what are the three kinds of symbiosis?

Answer 3

1. mutualism 2. parasitism 3. commensalism

Question 4

mutualism

Answer 4

beneficial for everybody

Question 5

parasitism

Answer 5

helps one, hurts the host

Question 6

commensalism

Answer 6

one benefits, one doesn’t care

Question 7

what is the difference between parasitism and predation?

Answer 7

predation kills–>parasites don’t

Question 8

competition selection

Answer 8

selections for traits that reduce competition

Question 9

competitive exclusion

Answer 9

two things compete and then their ecological niches stop overlapping; one wins, one loses–>gets booted

Question 10

fundamental niche

Answer 10

all resources you could use

Question 11

realized niche

Answer 11

lose competition

Question 12

resource partioning

Answer 12

two very similar things evolve to not compete with each other because of the use of slightly different resources

Question 13

predator adaptations

Answer 13

claws, speed, agility, acute senses

Question 14

cryptic coloration

Answer 14

blending in, hiding

Question 15

physical defenses

Answer 15

ex: porcupine

Question 16

chemical defenses

Answer 16

ex: skunk

Question 17

aposematic coloration

Answer 17

poisonous and advertising

Question 18

batesian mimicry

Answer 18

defenseless species looks like dangerous speciesn

Question 19

mullerian mimicry

Answer 19

everyone is dangerous–>everyone benefits

Question 20

species richness

Answer 20

number of species

Question 21

relative abundance

Answer 21

proportions

Question 22

interspecific competition

Answer 22

competition between different species

Question 23

intraspecific competition

Answer 23

competition between same species