Chapter 3 Ecosystems
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Transcript of Chapter 3 Ecosystems
Chapter 3
Ecosystems
Provides a sustainable balance of biotic and
abiotic factors
The Chesapeake Bay
SPARTINA ALTERNAFLORA
Littoral zone
Ecology
• Shows the balance of :
Ernst Haeckle mid 1800’s
Ecosystems
Energy enters the system and is able to do …..
the Types of Energy are …
• CRESTMN – showing the 7 types
• Chemical, radiant, electrical, solar,thermal, mechanical,nuclear
units of Energy are known as the
• Kilojoules emanating from the calorie which determines……
if there is Energy, there is
Leading to the laws of
And biological energy…….
• States that by absorbing or releasing E is the same.
The second law states
• The amount of Energy to work decreases the amount of usable Energy and becomes diffused.
and the measure of this disorder is called ….
the Biosphere has the 4 realms of…
Photosynthesis and celluar respiration provide….
• 6CO2 +12 H20+ Radiant Energy
• C6H1206+ 6 H20+6 02
• AKA SUGAR +
EXCEPT IN…………….
• CH……
Self nourishment organisms are known as
• Autotrophs or producers• Consumers who eat producers are known as • Herbivores• Secondary consumers eat• Primary consumers• And those who eat a variety of life forms are• Omnivores
Other feeders are ….
• Detrivores who eat» DETRIUS AKA» DECOMPOSING PLANTS AND ANIMAL
» Saprophores who are microbial » decomposers who….» Break down dead organic material
» Thus creating a…..
»FOOD WEB
Graphic representations of the energy levels of each trophic levels is an …
Ecosystem Productivity is
• ..the rate at which energy is captured during ……
• PHOTOSYNTHESIS • Since plants respire to provide energy for
their own use which acts as a drain, this is known as…..
• NPP or…..• Net Primary Productivity
NPP can be compared on Earth …