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MindMap25: Populations and Ecosystems (Population Structures (Geographic…
MindMap25: Populations and Ecosystems
Relationships and habitats
Abiotic
Climate
most species have climate restrictions
tolerance range
Soil Factors
A Horizon
Upper layer of soil
"Zone of Leaching"
litter and debris
B Horizon
"Zone of Deposition"
Where Materials of A horizon accumulate
Rich in nutrients
contains humus and clay
C Horizon
parent rock and rock fragments
Latitude and Altitude
no seasonal variation
Disturbances
radical change in ecosystem
fires
landslides
snow avalanches
floods
Biotic
The plant itself
modifies the habitat just by being in it
Other Plant species
mutualism
win/win for both organisms
competition
disadvantageous
habitat
set of conditions in which orghanism completes life cycle
Population Structures
Geographic Distribution
clumped
random
uniform
allelochemicals
Age distribution
generation time
demography
r selection
selected species
K selection
carrying capacity
All organisms of a species that live close together constitute a population
Community
ecosystem
competitors
Ecosystem Structure
Physiognomic Structure
physical size and shape of organism
life forms
Temporal
short time span
Species Composition
of diversity of species that coexist
tropic level
looks like triangle
primary producer
autotrophs
1st step of food web
energy and nutrient supply
primary consumer
herbivores
secondary consumer
carnivores
Decomposers
