Download Biogeochemical Cycles

Biogeochemical
Cycles
Mr. Skirbst
Cycles
Cycles
Daily Rhythms
Cycles
Daily Rhythms
diurnal – active during day
Cycles
Daily Rhythms
diurnal – active during day
nocturnal – active at night
Cycles
Daily Rhythms
Diurnal – active during Day
Nocturnal – active at Night
Cycles
Lunar Rhythms
Cycles
Lunar Rhythms
monthly cycles
(ex. high/low tides)
Cycles
Annual Rhythms
Cycles
Annual Rhythms
seasonal changes
(as Earth revolves around sun)
Cycles
migration – movement from
breeding to feeding grounds
Cycles
hibernation – winter resting state
(Latin: hibernus – “winter”)
Cycles
estivation – summer resting state
(Latin: aestivus – “summer”)
Cycles of Matter
Flow of matter (chemicals)
through biotic (living) to abiotic
(non-living) parts of an
ecosystem
Water Cycle (Hydrologic)
Water Cycle (Hydrologic)
- evaporation (liquid to gas)
Water Cycle (Hydrologic)
- evaporation
- condensation (gas to liquid)
(cloud formation)
Water Cycle (Hydrologic)
- evaporation
- condensation
- precipitation (rain, snow,
sleet, hail, fog)
Water Cycle (Hydrologic)
- evaporation
- condensation
- precipitation
- infiltration / runoff
(groundwater, streams, oceans)
Water Vapor (H2O)
Water Cycle
Oxygen – Carbon Cycle
Carbon dioxide (CO2)
Oxygen (O2)
Oxygen – Carbon Cycle
Oxygen Cycle: (O2 from CO2)
Oxygen – Carbon Cycle
Oxygen Cycle: (O2 from CO2)
- Photosynthesis:
(producers take CO2  O2)
Oxygen – Carbon Cycle
Carbon Cycle: (CO2 from O2)
Oxygen – Carbon Cycle
Carbon Cycle: (CO2 from O2)
- Respiration:
(consumers: take O2  CO2)
Oxygen – Carbon Cycle
Carbon dioxide (CO2)
Oxygen (O2)
Nitrogen Cycle
Metabolizing
Decomposition
Fixation
“Free”
Nitrogen (N2)
Nitrogen Cycle
fixation:
- bacteria changes “free” N
from air to N-compounds in
soil (for plant roots)
Nitrogen Cycle
fixation:
- bacteria changes “free” N
from air to N-compounds in
soil (for plant roots)
- lightning also “fixes” N
Nitrogen Cycle
metabolizing:
- N-compounds moved
from soil to plants to animals
Nitrogen Cycle
decomposition:
- bacteria “free” N
back into air again
Nitrogen Cycle
Free
Nitrogen (N2)
Ecological Succession
- gradual change from one
community to another
Climax Community
- a stable community of
organisms
Ecological Succession
Climax
Community
Soil Infiltration
Data:
infiltration time for gravel: __________
infiltration time for sand: __________
infiltration time for air:
__________
infiltration time for clay: __________
Time
Particle Size