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14 Cards in this Set

  • Front
  • Back
define intraspecific competition
define interspecific competition
intra: competition between individuals of same species
inter: competition between individuals of diff species
what are the 5 types of interspecific interactions
-interspecific competition
-consumer resource
-mutualism
-commensalism
-ammensalism
describe interspecific competition and its 3 types
-neg. influence on both
-interference: both predators interfere with one another for common resource
-exploitation: common resource, affect indirecely
-apparant:...
describe consumer resource comp
-one species is anothers resource
-predator-prey
-herbivore-plant
-parasite-host
describe mutualism
-3 types
-species exchange resources or services
-resource-resource
-resource-service
-service-service
describe commensalism
-one benefit, other unaffected
barnacles on whale
describe ammensalism
-one negatively influenced, other unaffected
-grass when it is trampled
what are the 3 community effects of competition
competitive exclusion
niche differentiation
extinction
describe competitive exclusion
Gauss's Law: two species competing for same resource cannot coexist; one species will always outcompete the other
describe niche differentiation
species that use same resource find different ways to attain resource, allowing them to coexist
describe local extinction (community effects of competition)
-competition can drive certain species to extinction which affects distribution of species
what are the 2 community effects of predation
-predatory prey populations are linked
-keystone predation
describe how predatory prey populations are linked
-what is key to their survival
-increase in prey population lead to increase in predatory population
-heterogeneity is key so that prey do not go extinct (immigration/emigration, shelter, variation in defense, more species of pred./prey)
describe keystone predation
predators can increase diversity by feeding on dominant competitor. this allows for more diversity in the community