competition Flashcards
community
a group of populations of different _____ living close enough to _____
a group of populations of different species living close enough to interact
abiotic limitations to species distributions
community interactions (classified by the effects on species involved)
survival/reproduction increased (+)
survival/reproduction decreased (-)
no effect on survival or reproduction (0)
abiotic limitations to species distributions
community interactions (classified by the effects on species involved)
survival/reproduction increased (+)
survival/reproduction decreased (-)
no effect on survival or reproduction (0)
intraspecific
individuals from the _______ compete for a limited resource (population ecology)
individuals from the same species compete for a limited resource (population ecology)
interspecific
individuals from _______ compete for a limited resources (community ecology)
individuals from different species compete for a limited resources (community ecology)
competitive exclusion
two species competing for same limiting resources cannot coexist permanently in the same place, one will be outcompeted
competitive exclusion
two species competing for same limiting resources cannot coexist permanently in the same place, one will be outcompeted
if intraspecific competition is high it can reduce interspecific
if intraspecific competition is high it can reduce interspecific
ecological niche-
the sum of species use of the biotic and abiotic resources in its environment
ecological niche-
the sum of species use of the biotic and abiotic resources in its environment
keystone species
removing keystone species (often top carnivores) can decrease diversity
keystone species
removing keystone species (often top carnivores) can decrease diversity
niche for ____ and ____ is different since plant needs basic resources
niche for animal and plant is different since plant needs basic resources
niche for plants:
habitat niche-particular ____ factors
life-form niche-____, 3D structure, ____ productivity
Phenological niche-____ of seasonal growth, flowering, fruiting
Regeneration niche-how species _____ itself in landscape
habitat niche-particular ecological factors
life-form niche-size, 3D structure, annual productivity
Phenological niche-timing of seasonal growth, flowering, fruiting
Regeneration niche-how species replaces itself in landscape
similar species can coexist in a community if there is at least one difference in their niches
resource partition:
shift to different resource
partition same resources across space or time
leads to _____ and diversity
similar species can coexist in a community if there is at least one difference in their niches
resource partition:
shift to different resource
partition same resources across space or time
leads to specialization and diversity