Interactions of ecological communities

1) Identify if each question is: (increasing or decreasing competition) and (interspecific competition or intraspecific competition)

1. Cichlids from lake Ontario have evolved into more than 200 different species. ____ and____competition
2. Deer population migrating from quebec to Manitoba during mating season:____ and____competition
3. Mussels being introduced to the Great Lakes is: ____and____ competition
4. Reducing the wolf population in Montana to preserve caribou population:____and____ competition

2) Intraspecific competition reduces allelic diversity by

a) allowing K-selected species to have a selective advantage over r-selected species
b) relieving predator pressure on the prey population
c) allowing two different species occupying the same niche to compete for resources
d) creating a competitive advantage to certain alleles

3) Predators are likely to cause

a)increase their population size after the prey population increases
b)diversify the alleles of both the prey and predator populations
c)increase the gene pool of the prey population
d)lead to competition exclusion through natural selection