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Populations and Ecosystems (ecosystem structure (physiognomic structure…
Populations and Ecosystems
community
physical envioronment
ecosystem
rarely stable
habitat
organism
completes life cycle
migratory
fruits
seeds
pollen
vegetative proplagules
spores
biotic
living
animals
fungi
plant itself
prokaryotes
niche
abiotic
nonliving
climate
critically important
tolerance rate
vary between species
altitude
soil
first plants
pioneers
latitude
fires, floods, etc
produce radical change
population structure
health of plant
limiting factor
water
temperature
biotic factors
soil factors
distributions
random
no pattern
uniform
evenly spaced
clumped
small spacing
age distribution
demography
middle aged
old
young
growth
generation time
birth-offspring
intrinsic rate
offspring that reproduce
ecosystem structure
physiognomic structure
shrubs
herbs
trees
temporal structure
changes overtime
species composition
species that coexist
trophic levels
feeding levels
autotrophs
primary producers
first step food web
primary consumers
herbivores
secondary consumers
carnivores
decomposers
energy flow
carbon flow
