K – (N/K)
(K – N)/K
RN [(K - N)/K]
RN-K [(K - N)/K]
RN [(N - K)/N]
It exhibits “big bang” reproduction.
It reproduces with the same mate every time, if possible.
It reproduces with several mates per breeding season.
It reproduces multiple times over the course of its lifetime.
It can be an adaptation to a variable environment.
it increases as the per capita growth rate decreases
It remains constant over time
It can never be exceeded
It may change as environmental conditions change
It can be calculated using the exponential growth model
A species' life history
The death rate decreases as N gets close to K
The population growth rate increases when N gets close to K
DN/dt is minimized as N gets close to K
The per capita rate of increase rises as N gets close to K
The population grows exponentially when K is small
Birth rates and death rates are equal
The rate of population growth increases with added resources
The number of individuals in a population has no effect on the rate of population growth
The per capita rate of increase is constant
The intrinsic rate of increase depends on the resource availability
A. production of many young annually over the course of a long lifetime
B. production of few young in a single bout of reproduction per lifetime
C. production of many young once and then dying
D. choices A and B apply
E. choices A and C apply
The type of food they eat
The number of times they reproduce per year
The average number of young born to mating pairs
The number of individuals & their age
The number of females as opposed to males
Fluctuations in weather
Physiological responses to crowding
Nutrient and mineral resources
Community, ecosystem, individual, population
Individual, population, community, ecosystem
Population, ecosystem, individual, community
Ecosystem, community, population, individual
Individual, community, population, ecosystem
A. death rate
B. birth rate
D. A and B only
E. A, B, and C
A) new individuals are added to the population most rapidly at intermediate population sizes.
B) density-dependent factors affect the rate of population growth.
C) population growth rate slows dramatically as N approaches K.
D) All of the above are true.
E) Only A and C are true.
Sympatric populations of species with similar ecological niches.
Sympatric populations of a predator and its prey.
Allopatric populations of species with similar ecological niches.
Allopatric populations of the same animal species.
Sympatric populations of a flowering plant and its specialized insect pollinator.
A butterfly that resembles a leaf
An insect that resembles a twig
A nonvenomous snake that looks like a venomous snake
A fawn with fur coloring that camouflages it in the forest environment
A snapping turtle that uses its tongue to mimic a worm, thus attracting fish
A katydid whose wings look like a dead leaf
Eye color in humans
Green color of a plant
Colors of an insect-pollinated flower
Stripes of a skunk
Light intensity, seasonality
Nutrient availability, soil pH
dwarf mistletoes, which parasitize particular species of forest trees
Lake trout, which seek out deep water
Cattails, which grow primarily at edges of lakes and streams
Red squirrels, which hide food and actively defend territories
A field of annual poppies
Wolves in a national park
Earthworms in a backyard
pelagic squid (pelagic = living throughout the open ocean)