Ecosystem Organisation (HSC SSCE Biology): Flashcards
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Biotic factors
Biotic factors
Living components of an ecosystem
Abiotic factors
Abiotic factors
Non-living physical & chemical components of environment
Photic zone
Photic zone
Upper ocean layer where sufficient light penetrates
Intraspecific competition
Intraspecific competition
Competition between members of the same species
Interspecific competition
Interspecific competition
Competition between members of different species
Mutualism
Mutualism
Symbiosis where both species benefit (+/+)
Commensalism
Commensalism
Symbiosis: one benefits, other unaffected (+/0)
Parasitism
Parasitism
Symbiosis: one benefits, other harmed (+/-)
Niche
Niche
All resources a species uses in an ecosystem
Competitive exclusion principle
Competitive exclusion principle
No two species can occupy exactly the same niche