• Wrong document? Swap it for free
  • Written by students who passed
  • Immediately available after payment
  • Read online or as PDF
Sell
Where do you study
Your language
Start selling Create your account
Document preview thumbnail
Preview 2 out of 11 pages
Lecture notes

Class Notes for Biodiversity AS Level Biology A OCR

Document preview thumbnail
Preview 2 out of 11 pages

My class notes for biodiversity

Content preview

Biodiversity
 Biodiversity
 Sampling
 Sampling Techniques
 Calculating biodiversity
 Calculating genetic biodiversity
 Factors affecting biodiversity
 Reasons for maintain biodiversity
 Methods to maintain biodiversity




Biodiversity

, Biodiversity – the variety of living things in an area.
Why is biodiversity important?
At least 40% of the world’s economy and 80% of the needs of the poor are derived from
biological resources. In addition, the richer the diversity of life, the greater the opportunity
for medical discoveries, economic development, and adaptive responses to such challenges
as climate change.




Measuring Biodiversity
Measuring biodiversity plays an important role in conservation. It informs scientists of the
species that are present, thus providing a baseline for the level of biodiversity in an area.
From this information, the effect of any changes to an environment can be measured. These
may include the effect of human activity, disease of climate change.
Before a new project is undertaken, such as building a new road or the creation of a new
nature reserve, and Environmental Impact Assessment is taken. This assessment attempts to
predict the positive and negative effects of a project on biodiversity in the area.
Biodiversity can be studied at three different levels:
- Habitat biodiversity
- Species biodiversity
- Genetic diversity
Habitat biodiversity – the number of different habitats found within an area.
Species biodiversity has two different components:
Species richness – the number of different species living in an area.
Species evenness – a comparison of the number of individuals of each species living in a
community.
Genetic biodiversity – the variety of genes that make up a species.

Factors Affecting Biodiversity

Document information

Study Level
Subject
Uploaded on
May 10, 2021
Number of pages
11
Written in
2019/2020
Type
Lecture notes
Professor(s)
Miss gibbs
Contains
All classes
£5.99

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Sold
1
Followers
1
Items
10
Last sold
5 year ago



Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their exams and reviewed by others who've used these revision notes.

Didn't get what you expected? Choose another document

No problem! You can straightaway pick a different document that better suits what you're after.

Pay as you like, start learning straight away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and smashed it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions