OCR A-Level Biology Populations and Sustainability(1) Summary
6 views 0 purchase
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.
Immigration The movement of organisms into a given area
:
Emigration The movement of organisms away from a given area
:
Density Independent factors Have effect on the whole population regardless of an Size
:
Earthquakes fires volcanic eruptions and storms
·
, ,
Interspecific Competition Competition between different species :
Intraspecific Competition Competition between members of the same
species
:
Conservation Maintenance of biodiversity through human action to maintain
diversity
:
Reclamation Process of habitats
restoring damaged
· :
Preservation human interference
Protection of diversity by restricting or
banning
:
Importance of conservation Economic social ethical
:
, ,
Aims of for
sustainability Preserve the environment ensure resources are available the
:
,
future generations ,
allow humans to live
comfortably ,
enable LEDs to develop
·
Sustainable Timber Culture
small-scale Trees cut the
ground coppicing to shoots to grow
·
are close to allow
:
new
This to allow the trees to
occurs
rotationally regrow
·
Large-scale : Practice selective
Cutting ,
replant trees ,
plant trees an
optimal distance apart ,
and maintain zones for indigenous people
manage pests pathogens ,
Sustainable
fishing
·
:
·
Common fisheries
Policy ·
limits the numbers of fish that can be caught
Use different sized mesh nets to prevent certain fish being Caught
·
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller faithcortis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R69,93. You're not tied to anything after your purchase.
