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OCR A-Level Biology Populations and Sustainability(2) Summary

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Handwritten Summary by an Oxford Medical Student which covers all content necessary for an A* in Populations and Sustainability at OCR Biology A-Level.

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October 11, 2023
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Written in
2023/2024
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Animals Present Coast forest Moorland and :


, ,
mountainous birds

Plants alpine plants and woodlands Snowdon
Present
Hardy ie
lily
.
:
.




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
:

,




cultured
Better
irrigation/fertilisation
. GM crops
. Multiple
cropping Nitrogen fixing plants are
·
.




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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Handwritten A-Level notes by an Oxford University Medical Student that specifically target the content needed for an A-A*.

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