Population Distribution
what is population distribution?
provides information of underlying biological interations
what is symbiosis?
individuals of 2 species live in close physiological contact with eachother
what are autotrophs?
capable of synthesizing its own food from inorganic substances
what is genetic diversity? Why is it important?
what is masting?
plants produce many offspring on a variable timescale
what is clumped population distribution?
individuals found in close proximity
what is parasitism?
one benefits while the other is harmed
who is at the base of the food chain?
What is species vs. ecosystem diversity?
species: variety in living organisms
ecosystem: variety of landscapes
what is mimicry?
an organism pretending to be a different dangerous organism
what is random population distribution?
individuals found haphazardly across landscape
what is commensalism?
what is the grazing type on a food web?
living photosynthetic organisms found at the base
what is alpha diversity?
# of species at a site; average # of species at a site in a region
what is interspecific competition? provide an example.
ex: a bird and squirrel fighting over nuts
what is uniform population distribution?
individuals evenly spaced across lanscape; intra-specific competition
what is ammensalism?
extreme asymmetrical competition; one is harmed while the other is neither helped nor harmed
what is the detrital type on a food web?
dead organic matter
what is beta diversity?
measure of variation in species across different sites within a region
what is intraspecific competition? provide an example.
occurs between individuals of the same species
ex: kangaroos for mates
what is carrying capacity?
the maximum population size that an environment can sustain
what is competition?
both are harmed
how much energy is lost in the food web?
every step up the trophic level loses 90% of energy
what is gamma diversity?
total number of species in the region or landscape
type I: few offspring with good care; mortality low in early years
type II: mortality is relatively constant over time
type III: large number of offspring with low care; high mortality early on