Populations and Sustainability (OCR A-Level Biology A): Flashcards
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Practise the cards
10 cards from this deck
Preservation vs conservation approach
Preservation vs conservation approach
Preservation: hands-off, no use. Conservation: active management.
Sustainable resource definition
Sustainable resource definition
Renewed biologically; stocks remain available without depletion
Maximum sustainable yield (MSY)
Maximum sustainable yield (MSY)
Fish catch level maintaining stock regeneration capacity
Spawning grounds
Spawning grounds
Areas where fish reproduce
Ecosystem approach to fishing
Ecosystem approach to fishing
Examines entire ecosystem structure, not just single species
UK woodland coverage %
UK woodland coverage %
Approximately 13% of land
Clear felling characteristics
Clear felling characteristics
Removes all trees; disrupts biodiversity; causes erosion
Coppicing method
Coppicing method
Cuts trees to ground; stumps regrow multiple stems faster
Tree growth and carbon storage relation
Tree growth and carbon storage relation
Faster growth = faster carbon storage
Purpose of net mesh size regulation
Purpose of net mesh size regulation
Ensures small fish escape to survive and breed