All the members of a species living together at the same time.
What is a population?
100
the change in the size of a population over a given period of time.
What is growth rate?
100
The maximum population that an ecosystem can support indefinately.
What is carrying capacity?
100
A ______ can be thought of as the funstional role, or job, of a particular species in an ecosystem.
What is its niche?
100
An organism's __________ is its location.
(the place it usually lives)
What is its habitat?
200
Organisms usually do this with members of their own population (this helps to define what a population is).
What is breed/reproduce.
200
The growth rate is the _________ rate minus the __________ rate.
What is birth, death?
200
An area defended by one or more individuals against other individuals. (organisms often compete for this)
What is a territory?
200
A relationship in which different individuals or populations attempt to use the same limited resource.
What is competition?
200
The type of relationship between a lion and a gazelle.
What is a predator and prey relationship.
300
How many individuals there are in a population.
What is population size?
300
The maximum number of offspring that each member of a population can produce.
What is reproductive potential?
300
This cycle shows a rapid increase in both the predator and prey populations followed by a sharp decline.
What is a "boom-and-bust" cycle?
300
The type of relationship between a deer tick and a coyote.
What is a parasitic relationship?
300
A close relationship between two species in which each species provides a benefit to the other.
What is mutualism?
400
The number of individuals per unit area of a population.
What is density of a population?
400
Logarithmic growth, or growth in which numbers increase by a certain factor in each successive time period.
What is exponential growth?
400
A species reaches its carrying capacity when it consumes this at the same rate at which the ecosystem produces it. (HINT: a ___________ resource)
What is 'limiting' resource?
400
Provide an example of commensalism.
Answers will vary, one organism must benefit, one must be unaffected.
400
Describe why an organism's potential niche might be much smaller than its actual niche.
What is one species might inhabit a different niche to avoid competitive exclusion.
500
A population's _________ is the relative distribution or arrangment of its individuals within a given amount of space.
What is dispersion?
500
The three factors that affect an organism's reproductive potential.
What is how many offspring an organism can produce at one time, how often they reproduce, and how early they reproduce in life.
500
When a cause of death in a population is ___ ____ , deaths occur more quickly in a crowded population than is a sparse population.
What is density dependent?
500
What is the difference between the relationships of parasitism and predation?
What is that predators kill their prey and parasites usually do not. (actually an advantage for parasites NOT to kill their prey, why?)
500
Provide an example of two species that you would expect to demonstrate "boom and bust" cycles that refect each other. (besides the snowshoe hare and lynx)