Biology A-Level
predation
What predation means in Biology A-Level, as defined for AQA, OCR.
Definitions of predation
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Reference: OCR
An interaction in which a rise in prey numbers supports more predators, whose increased numbers then reduce the prey, so the two populations oscillate out of phase.
Removes the individuals easiest to catch, so alleles for better camouflage, speed or vigilance become more common in the prey population.
Topics that use predation
- Evolution may lead to speciation (A-level only) (AQA A-Level)
- Populations and sustainability (OCR A-Level)
Related terms
- allele frequency change
- allopatric speciation
- Biodiversity and ecosystem function
- Births, deaths, immigration and emigration
- causes of change
- Classifying management examples
- common ancestry
- competition for resources
Using predation in the exam
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