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ec fina pic set IV
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a
a
species diversity
richness v relative abundance
Shannon weaver index
trophic structure for terrestrial v marine
food web
food web for chesapeak bay
Keystone species
pigester-sea star
energetic limit on food chain
(Y) # of species
(X) productivity
numbe of tropic links v # of species
sea otters keystone
left before killer whales ate otters
right after
tropic cascade
ecosystem engineer/foundation species
wolves
elks
willow trees
beavers
dams
welands
birds & fish
top down/bottom up controls
herb plants shifted
dry conditions bottom
moist more animals
(x) rainfall
salt marsh w/ juncus
foundation species positive effect
O2 into soil
more plants
biomanipulation
restores communities
disturbance
removes organisms
fires
detritus
fire helped rebound
fire adapted seeds
nutrients
galciers
primary succession
pioneer stage
modifies habitat release nitrogen
evapotranspiration
increase evaportation increase trees
# of species v area
species-area curve
larger area-more
island equilibrium
X-species
Y-im/emmigration
a. immigration/extinctin rates
b. island size
c. distance
richness increases with island size
Y-# of plant species
X-area of island
Integrated community structure
species have the same high & low points
individualistic
independent of each other
gleason-doing their own thing
response to environmental conditions
Author
lacythecoolest
ID
274086
Card Set
ec fina pic set IV
Description
set 4
Updated
2014-05-12T02:24:26Z
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