Presentasi 7 dalam pengembangan ekosistem

Pengembangan ekosistem

1. Interdependence of
Life:
Ecosystems
By Deanne Erdmann, MS
BioEd Online

2. Ecological Terminology
Environment
Ecology
Biotic vs. Abiotic
Population
Community
Ecosystem
Biosphere
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3. Ecosystems
All members of a community, along with
their physical and chemical environments
Vary greatly in size
Diversity promotes stability and
productivity
Dynamic
energy flow
chemical cycling
Change over time (succession)
Coral Reefs are a rich,
diverse and productive
ecosystems
A coastal wetland on
Lake Superior,
Wisconsin.
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4. Biomes
Tropical Rainforests
Savannas
Deserts
Temperate Grasslands
Temperate Deciduous Forests
Coniferous Forests
Arctic Tundra
Grasslands in the Great
Sand Dunes National
Monument and Preserve
Prairie Creek Redwoods
Sate Park
BioEd Online

5. Aquatic Ecosystems
Freshwater
Flowing Water
Lakes
Wetlands
Estuaries
Oceans
Intertidal or littoral
Coastal or neritic
Coral Reefs
Open Ocean
Benthic
Snake River with Grand
Tetons in background
Mountain Lake in
Grand Teton
National Park
BioEd Online

6. Zonation in Lakes
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7. Thermal Stratification in Lakes
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8. Zonation in a Marine Environment
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9. Primary Production
The conversion of light energy
to chemical energy is called
“gross primary production.”
(photosynthesis)
Plants use the energy captured
in photosynthesis for
maintenance and growth.
The energy that is accumulated
in plant biomass is called “net
primary production.”
BioEd Online

10. Energy Flow in Ecosystems
Producers (Autotrophs) and Consumers (Heterotrophs)
Trophic Levels
Ecological Pyramids of Energy
Ecological Pyramids of Biomass
Ecological Pyramids of Numbers
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11. Ecological Pyramids of Energy
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12. Ecological Pyramids of Biomass
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13. Biogeochemical Cycles
Cycling of materials between the
environment and organisms
Chemical and biological processes
Examples
Water cycle
Nitrogen cycle
Phosphorus cycle
Carbon cycle
Plants obtain nitrogen
from nitrogen-fixing
bacteria and pass it to
other organisms through
the food chain
BioEd Online

14. Water Cycle
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15. Nitrogen Cycle
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16. Carbon Cycle
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17. Biogeochemical Cycle Activity
Pass out untitled diagrams of the water cycle, nitrogen
cycle, and carbon cycle.
Have students title each cycle and explain why they
chose these titles.
Provide a list of labeling terms and have students create
labels for each stage or process on all three diagrams.
Applications/suggestions
Use as an introductory or post-discussion
assessment.
Laminate group sets and use erasable markers to
save paper and prep time.
BioEd Online