Community Ecology
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19 Terms
Competition
Interaction where individuals use the same limited resource.
Intraspecific competition
Within the same species.
Interspecific competition
Between species.
Resource competition
Indirect competition for shared resources.
Interference competition
Direct aggression or exclusion.
Fundamental niche
Potential conditions a species can tolerate.
Realized niche
Actual conditions a species occupies.
Character displacement
Trait divergence to reduce competition.
Predation
One organism kills and eats another.
Chemical defense
Toxic chemicals (e.g., newts).
Cryptic coloration
Camouflage.
Müllerian mimicry
Multiple toxic species share warning signals.
Batesian mimicry
Harmless species mimics toxic one.
Species richness
Number of species.
Species abundance
Number of individuals per species.
Shannon diversity index
Combines richness and evenness.
Alpha diversity
Diversity within a site.
Beta diversity
Diversity between sites.
Gamma diversity
Total regional diversity.
Note 
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