8.5,6,7: Interspecific Interactions Flashcards
1
Q
What is competition?
A
- a (-/-) relationship where individuals of different species compete for limited resources
2
Q
What is the competitive exclusion principle?
A
- two species competing for the same resource cannot exist permanently
- the competitor with even slightly better advantage will eliminate the inferior competitor
3
Q
Competition: what is niche partitioning?
A
- natural selection drives competing species into different patterns of resource use, or different niches
4
Q
What is predation?
A
- a (+/-) relationship where one species (predator) kills and eats the other species (prey)
5
Q
Predation: adaptions of both predators and prey have been refined by?
A
Natural selection
6
Q
Predation; what is cryptic coloration?
A
Camouflage
7
Q
Predation: what is batesian mimicry?
A
Harmless species mimics a harmful one
8
Q
Predation: what is mullerian mimicry?
A
- two or more bad-tasting species resemble each other
Ex. Yellow jackets and coco bees, all wasps and bees have black and yellow colouring to avoid predation
9
Q
What is herbivory?
A
- a (+/-) relationship where one organism eats part of a plant or algae
See picture
10
Q
What is symbiosis?
A
When 2 or more species live in DIRECT CONTSCT with one another
11
Q
What are three types of symbiosis?
A
Parasitism, mutualism, commensalism
12
Q
Symbiosis: what is parasitism?
A
- (+/-) when one organism (parasite) derives nourishment from another (host)
13
Q
Symbiosis: what is mutualism?
A
- (+/+) when both organisms benefit from the relationship
-
14
Q
Symbiosis: what is commensalism?
A
- (+/o) when one organism benefits and the other is neither benefited or harmed
15
Q
What is facilitation?
A
- a (+/+) or (+/o) when one species has a positive effect on the survival and reproduction of another, without association of symbiosis
