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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 |
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what are the 5 types of interspecific interactions
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-interspecific competition
-consumer resource -mutualism -commensalism -ammensalism |
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describe interspecific competition and its 3 types
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-neg. influence on both
-interference: both predators interfere with one another for common resource -exploitation: common resource, affect indirecely -apparant:... |
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describe consumer resource comp
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-one species is anothers resource
-predator-prey -herbivore-plant -parasite-host |
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describe mutualism
-3 types |
-species exchange resources or services
-resource-resource -resource-service -service-service |
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describe commensalism
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-one benefit, other unaffected
barnacles on whale |
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describe ammensalism
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-one negatively influenced, other unaffected
-grass when it is trampled |
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what are the 3 community effects of competition
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competitive exclusion
niche differentiation extinction |
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describe competitive exclusion
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Gauss's Law: two species competing for same resource cannot coexist; one species will always outcompete the other
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describe niche differentiation
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species that use same resource find different ways to attain resource, allowing them to coexist
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describe local extinction (community effects of competition)
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-competition can drive certain species to extinction which affects distribution of species
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what are the 2 community effects of predation
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-predatory prey populations are linked
-keystone predation |
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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) |
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describe keystone predation
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predators can increase diversity by feeding on dominant competitor. this allows for more diversity in the community
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