19. Resource Competition

Question 1

Competition

Answer 1

Negative for A and B

Question 2

Intraspecific competition

Answer 2

Competition within a species

Question 3

Interspecific competition

Answer 3

Competition between different species

Question 4

Intraspecific competition formula

Answer 4

(K−N) / K

Question 5

Interference competition

Answer 5

Direct aggressive interaction between individuals, mostly in animals

Question 6

Exploitative competition

Answer 6

Competition to secure resources first, mostly in plants

Question 7

Self thinning

Answer 7

As biomass increases, density decreases

Question 8

competitive exclusion

Answer 8

2 species cannot occupy the same niche, only occurs when disease or predation is not a main limiting factor and there are no extreme conditions

Question 9

Character displacement

Answer 9

Changes in the characteristics of a population as a result of natural selection for reduced competition

Question 10

species complex

Answer 10

a set of species that are morphologically similar and occupy overlapping ranges, but show reproductive isolation

Question 11

What must be ruled out to determine if character displacement has occurred

Answer 11

1. Chance
2. Genetics
3. Evolutionary shifts
4. Resource use
5. Must have similar sites of sympatry and allopatry
6. Similar phenotypes must compete for the same resource

Question 12

Allopatric

Answer 12

isolated species (no character displacement)