Chapter 26: Community Ecology
Beneficial interactions between species
Predator-prey interactions
Diversity
Metapopulations in patchy environments
Interconnectedness of species: Food chains and food webs
Diversity and latitude 
Diversity and scale
Competition between species
Apparent competition #
Predator selection among multiple prey
One predator, one prey
species abundance distribution
species-area relationship
S=cA^z
number of species in each abundance class
functional response
prey-dependent
zero growth isocline
time to find and consume prey
prey available determines predator's functional response
the line indicating population stability
paradox of enrichment
over-exploitation of prey
leads to loss of both species
Maximum sustained yield
harvesting just enough of the species
fixed effort harvesting
population health
determined by effort
fixed quota harvesting
fishermen and hunters are allowed a certain amount
optimal diet model 
#
optimal foraging theory 
why herbivores eat the plants and ignore others
makes 4 predictions
edible parts are sometimes best left alone
broadening diet
abundance of other plants
optimal energy
invasive
interference competition
resource
exploitation competition
one or both grows poorly
makes resource less available for other organisms
one organism restricts another organisms access to a resource
species can increase from low population density
factor that leads to increased growth rates
Plants are not competing for and using a resource 
nurse plants 
#
facilitation
primary succession
mutualism 
2 organisms that both benefit
not preying or competing
alter a small area of habitat
organisms become established
on newly created substrates
sink habitat
fugitive species #
source habitat
assisted dispersal
metapopulation
several local populations that are interconnected
migrations and gene flow
local population is now metapopulation
high quality patch
low quality patch
survives by colonizing new patches
many weeds of disturbed sites
captured in one area and released into another
energy flow web 
food web 
keystone species 
food chain 
direct line of consumption
various lines of consumption
how energy flows in the community
needed in a community
dramatically effects structure of community