OCR A-Level Biology Populations and Sustainability(2) Summary
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Course
Unit 6
Institution
OCR
Handwritten Summary by an Oxford Medical Student which covers all content necessary for an A* in Populations and Sustainability at OCR Biology A-Level.
Control of human activities Par promote eco-tourism/economic
authority conservation
:
->
,
success
Animals present natterjack toads bats red deer and endangered Vendace fish
Water voles
:
, , ,
plants present arctic-cupine plants dwarfj uniper dwarf willow and the carnivorous sundew
:
,
,
Control of human activities Active management by part authority
:
and woodlands
Ecosystem :
Savannah with rich
grasslands acacia
farming Semi-nomadic tribes
grazing livestock frequently so the ground recovered
with moved
:
·
Grazing is now limited to the edge of the reserve preventing soil erosion
Grassland has been converted to cropland
depleting soil nutrients fertilisers needed
·
->
are
Ecotourism Aims to :
ensure tourists respect the environment and locals are consulted
↳ Still has due to
negatives such as soil erosion
hiking
Conservation
Rangers prevent illegal poaching of endangered species i.e black rhino
:
.
↳ Research can be conducted into the animals and the
ecosystem .
Human influence : Land Legal hunting
fencing against elephants to maintain populations
Livestoch be threatened diseases wildlife
may by in
migratory
·
Ecosystem :
Subtropical forest with rich
biodiversity
Forest
Managements Community forestry groups coordinate to make agriculture sustainable
:
↳ increased conservation soil and water
management and biodiversity economic growth
, ,
Sustainable
agriculture Move farmlands to mountain
regions away from the terai
:
Ecosystem :
Material is prevented from
decomposing dre to anaerobic conditions
have diminished
Loss of Ecosystem
:
Peat bogs in the Un
by 90% in the last 60-100
years
Benefits of peat bogs contribute flood management erosion and
to control carbon
storage
:
,
Conserving surface is undisterbed and as wet as
by fencing
peat bogs Ensuring the possible
:
·
Remove seedling trees to decrease competition
controlled
use
grazing to maintain
biodiversity
·
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