Edexcel, Unit 3 Case Studies (Biodiversity,Water & Energy)

These are case studies for Biodiversity Under Threat, Water Conflict and Energy Security (inc. up to date May 2016 case studies)

Slides in this set

Slide 1

Preview of page 1

Unit 3 ­ Case Studies
Biodiversity Under Threat…read more

Slide 2

Preview of page 2

Key Characteristics-> Threats->
·Total of 8 plant,4 bird and 5 primate ·Humans, only 17% of the original
families that are all endemic to the vegetation remains due to
island. deforestation.
·Home to 50 lemur species ·Hunting has also led to the extinction
of 15 lemur species.
Why is it so bio-diverse? -> Conservation->
·Being islands the isolation has led to ·2.7% of land is officially protected.
the evolution of a unique group of
·The plan is to triple this within 5
animals years.
·There is a large diversity of habitats. ·Some species have been bred in
captivity to ensure they carry on.…read more

Slide 3

Preview of page 3

Mediterranean Basin
Key Characteristics-> Threats->
·The area has 22,500 endemic ·Populations are threatened by
vascular plant species urbanisation and development
fragmenting their habitats
·Population of 300million
Why so Bio-diverse?->
·Water shortages and desertification
·It is located at the inter-section of two
major landmasses. Conservation->
·Includes many mountains, peninsulas · 4.3% of the area is protected, with
and archipelagos. views to expand this in the future.
·Cool winters and hot summers. · The European Unions Habitat
Directive is important in protecting
`special' areas.…read more

Slide 4

Preview of page 4

Atlantic Forest, Brazil
Key Characteristics-> Threats->
·20,000 plant species. 40% are ·Logging and road construction is
endemic reducing habitat size
·The hotspot is 99,944km2 but only ·Less than 10% of the forest remains.
50,370km2 are protected. ·<2 dozen critically endangered
·UNESCO World Heritage Site species.
Why so Bio-diverse?-> Conservation->
·Located close to the equator · Enforcing laws to prevent logging,
however, this doesn't always have
·High levels of rain and little seasonal
change. the desired effect and stop.
·Large and not overly disturbed area.…read more

Slide 5

Preview of page 5

Fynbos, South Africa
Key Characteristics-> Threats->
·Fynbos is the major vegetation type ·Alien plant species
of the Cape floral region of South ·Commercial forestry
·Frequent bush fires
·The smallest and richest kingdom
with 1,300 species per 10,00km2 ·Construction and Agriculture
Why so Bio-diverse?-> Conservation->
·Unusual geology and soils, · Conservation of the Cape floral
topography and a distinctive fire area has become a national priority
regime have led to the creation of the
· 12 nature reserves & 4 designated
· No development may take place
without special approval.…read more

Slide 6

Preview of page 6

Galapagos Tortoise
Why are they Endemic? Specific Characteristics?
They are endemic 9 islands of the ·Can reach 5 feet in length, this is
Galapagos islands archipelago. They thought to be because of high rainfall
islands are very isolated (973km from and lots of vegetation.
mainland) causing the species to
·They can live for up to 100 years and
adapt to their environment. sleep for 16 hours a day.
How many survive?
·Today around 15,000-20,000 survive. Are they Threatened?
These are of 11 sub-species. · Alien species such as Cats & Dogs
prey on the young tortoises.
· They have to compete with cattle
for grazing vegetation.
· They are listed as vulnerable by
the WWF.…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Geography resources:

See all Geography resources »