20.1 - Energy Flow through Ecosystems Flashcards
Ecosystem
Biotic and abiotic factors in a environment
Equilibrium
Remaining somewhat constant - measured by resistance & resilience
Resistance
Ability is remain equilibrium
Resilience
Speed of recovery after disturbance
Food chain
Linear sequence of energy passing from organisms
Food web
Multiple trophic interaction between other species, crossing trophic levels
Trophic
Energy, food, eating, nutrition
Trophic level
Organisms energy levell/role in a food chain/web
Producer
Base of pyramids, autotrophs/photosynthetic organisms
Primary consumer
Consumes producers (herbivores)
Secondary consumer
Consumes primary consumers (carnivores)
Tertiary consumer
Apex, top of chain; Carnivore consuming other carnivores
Quaternary consumer
Highest on chain
Autotroph
Producers their own food
Gross primary productivity
Rate/total amount of photosynthesis production