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Biodiversity
Trophic Levels
Trophic
Levels
10% Rule
Net Product Productivity
Biodiversity
California Gnatcatcher
Robert
MacArthur &
E.O. Wilson
Island
Biogeography
Island
Biogeography
Galapagos
Islands
Speciation
 Darwin’s
Finches
Geographic Isolation
Continental
Drift
Mass Extinctions
Paul and Anne Ehrlich
Interspecific Interactions
Interaction
Ind. # 1
Ind. # 2
Competition
-
-
Predation
+
-
Mutualism
+
+
Commensalism
+
0
Competition
Interspecific
Intraspecific
Competitive Exclusion Rule
Two species cannot occupy the same
ecological niche
Resource Partitioning
Character Displacement
Predation
Plant Defenses
Physical
Thorns
Spines
Chemical
Poisons
Nicotine
Strychnine
Morphine
Tannins
Animal Defenses
Physical
Shells
Horns/Antlers/Quil
ls
Teeth
Chemical
Poisons
Odors
Animal Defenses
Cryptic Coloration
Aposematic
Coloration
Animal Defenses
Batesian Mimicry
Mullerian Mimicry
Mutualism
Commensalism
Keystone Species
Keystone Species
Principles
 P 56 # 10
 P 68 # 23
 P74 # 1
 P 98 # 6
 P 104 # 15
 P 140 # 12
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