predation & food availability are....
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synergistic. when predation and food limitation occur together, they have a
greater effect than either factor does independently.
when does gene coding for cooperation evolve?
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when Br>C
niche differentiation
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resource partitioning. both species forage in trees for insects and seeds.
when found together (sympatric) cthe chestnut blacked tends to forage in
higher branches than the black capped.
altruism
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behavior that benefits recipient at a cost to the performer. cost and benefit
=reproductive fitness (expected # of offspring)
abiotic factors
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living species effects
inTRAspecific competition
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competition b/t individuals of the same species
Nt = N0ert
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use this equation to calculate growth rates (r), estimate how long it will take
a population to reach a specific size, and estimate what the population size
will be at a specific point in the future.
Density-independent
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has nothing to do with how many individuals there are or how dense the
population is. being controlled by something else. aka: rainstorm or temp
change
species that display cooperative behavior
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social insects, black tailed prairie dogs, many species of birds and school
of fish
biotic
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living factors
, ∆
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finite changes in numbers in a given time
caterpillar's job
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eats entire interior of gall
Keystone species
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species that has an exceptionally great impact on the other species in its
ecosystem relative to its abundance.
r
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Give this one a try later!
synergistic. when predation and food limitation occur together, they have a
greater effect than either factor does independently.
when does gene coding for cooperation evolve?
Give this one a try later!
when Br>C
niche differentiation
,Give this one a try later!
resource partitioning. both species forage in trees for insects and seeds.
when found together (sympatric) cthe chestnut blacked tends to forage in
higher branches than the black capped.
altruism
Give this one a try later!
behavior that benefits recipient at a cost to the performer. cost and benefit
=reproductive fitness (expected # of offspring)
abiotic factors
Give this one a try later!
living species effects
inTRAspecific competition
Give this one a try later!
competition b/t individuals of the same species
Nt = N0ert
,Give this one a try later!
use this equation to calculate growth rates (r), estimate how long it will take
a population to reach a specific size, and estimate what the population size
will be at a specific point in the future.
Density-independent
Give this one a try later!
has nothing to do with how many individuals there are or how dense the
population is. being controlled by something else. aka: rainstorm or temp
change
species that display cooperative behavior
Give this one a try later!
social insects, black tailed prairie dogs, many species of birds and school
of fish
biotic
Give this one a try later!
living factors
, ∆
Give this one a try later!
finite changes in numbers in a given time
caterpillar's job
Give this one a try later!
eats entire interior of gall
Keystone species
Give this one a try later!
species that has an exceptionally great impact on the other species in its
ecosystem relative to its abundance.
r
Give this one a try later!
