2.2 Population Growth Flashcards
logistic growth
looks like an s –> is exponential until carrying capacity makes it cure the other way and basically stay constant
exponential growth
grow by multiplying forever
when does exponential growth happen
when populations are not limited by resources like food space etc.
when does logistic growth happen
when populations are limited by resources like food space etc.
two ways that populations are regulated
denstiy dependent and independent
how are populations controlled with density dependent factors
competition for resources
predation
waste
how are populations controlled with density independent factors
natural disasters
what determies the carrying capacity
the limiting factors
why do limiting factors exist
so there are not too many resources taken up by one specific species
examples of competition for resources as a limitng factor
food water light shelter
density dependent factors tend to be ____ (abiotic/biotic)
biotic
density independent factors tend to be ____ (abiotic/biotic)
abiotic
how have people avoided a carrying capacity
medicine technology etc etc
fecundity
the ability to produce an abundance of offspring or new growth; fertility.
if there is a squiggly line in a graph what does it mean
species has reached carrying capacity
