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populations and ecosystems (plants in relationship to their habitats…
populations and ecosystems
plants in relationship to their habitats
abiotic components of the habitat
climate
critically important
extremes of the climate are very important
growing season determined by
last extreme frost
tolerance range
low and high extremes
soil factors
pioneers
first plants
invade new soil
severe conditions
horizon
zone of leaching
b horizon
zone of deposition
c horizon
patent rock and rock fragments
latitude and altitude
seasonal variation
disturbances
fires, landslides, etc
biotic components of the habitat
interaction
mutulism
competition
competition exclusion
niche
conditions where no other organism can
other than plants
relatioships between plants and other oranyisms is important
herbivores
commensal relationship
habitat- where organisms complete life cycle
operational habitat
aspects of a habitat and how it affects plant
two types
abiotic
biotic
the structure of populations
geographic distribution
boundaries
limiting factors
health of the plants
any factor of ecosystem
local
random distribution
no pattern
clumped distribution
spacing
uniform distribution
allelochemics
chemicals that inhibit other pants
age distribution: demography
two factors
generation time
birth of first offspring
population growth
intrinsic rate
biotic potential
number of offspring
r and k selection
r selection
disturbance
k selection
conditions in a crowded habitat
structure of ecosystem
physiognomic structure
size and shape of the organism
temporal structure
changes that an ecosystem undergoes with time
species composition
number of diversity of species that coexist in an ecosystem
trophic levels
feeding levels
