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12 Cards in this Set

  • Front
  • Back
Are “ground squirrels” living throughout West Texas sympatric or allopatric species? Why?
df
competition
bad for both (like spotted hyena and lion going for same prey)
predation
one preying on another
parasitism
good for one, bad for another. parasite takes away from host, host is worse off
mutualism
beneficial for both
commensalism
beneficial for one, doesn't effect other
sympatric species
distribution overlap
allopatric species
distributions don't overlap
competitive exclusion principle
the probability that two or more competing species may coexist in the same area is inversely proportional to their niche overlap
character displacement
evolution of physical differences to allow exploitation of different resources
interference competition
direct displacement of competitors through aggression
exploitation competition
one species makes more efficient use of a common resource.
1. selection of different types of food within the same habitat
2. occupation of different areas during the same season
3. use of different vertical levels of vegetation