Predation (AQA A-Level Biology): Flashcards
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Practise the cards
10 cards from this deck
What is predation?
What is predation?
One organism consumes another for nutrition
What is a predator?
What is a predator?
Organism that feeds on another organism
What is prey?
What is prey?
Organism fed upon by a predator
Predator-prey co-evolution pattern
Predator-prey co-evolution pattern
Evolutionary arms race
Prey fate in lab conditions
Prey fate in lab conditions
Often completely eliminated
Prey extinction in natural ecosystems
Prey extinction in natural ecosystems
Rarely occurs due to refuges & habitat diversity
Effect of high prey numbers on predators
Effect of high prey numbers on predators
Predator population increases due to abundant food
Predator population change timing
Predator population change timing
Lags behind prey population changes
Lynx-hare cycle period (years)
Lynx-hare cycle period (years)
Approximately 9-10 years
Co-evolution definition
Co-evolution definition
Both species adapt in response to each other