Ecosystems2009-1.ppt

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Ecosystems
Interactions between biotic and
abiotic factors
Interactions between individuals,
species, and trophic levels
Energy
• Autotrophs—primary
producers
• Heterotrophs
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Primary consumers
Seconday consumers
Tertiary consumers
Top predators
Decomposers
Food Webs
Image courtesy of Thompsma ,Wikipedia under Creative Commons CC0 1.0
Universal Public Domain
Images removed due to copyright restrictions.
Resource Partitioning
Niche
Images removed due to copyright restrictions.
Niche
• Choose an organism
• Describe its niche
– Biotic factors
– Abiotic factors
Populations-Abiotic Factors
Images removed due to copyright restrictions.
Predator-Prey Relationships
• In pairs, choose an organism (one
predator, one prey)
• Describe your adaptations to optimize your
success
• Discuss how these 2 organisms will
interact
Populations-Biotic Factors
Camouflage
Mutualism
Image courtesy of Wikipedia
Image courtesy of Wikipedia
Succession
Image courtesy of U.S. Fish and Wildlife Service
Carrying Capacity
Images removed due to copyright restrictions.
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