Biodiversity
- Created by: unknownstruggler
- Created on: 03-05-16 18:00
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- Biodiversity
- Different levels
- Habitat biodiverisity
- Number of different habitats in an area
- Living (Biotic) factors
- Availability of food
- Presence of predators
- Physical factors
- Soil
- Temperature
- Species biodiversity
- Number of different species and species abundance in an area
- Genetic biodiveristy
- Variation of alleles within a species
- Human blood group
- Habitat biodiverisity
- Collecting data
- Net
- Aquatic animals
- Quadrat
- Plants
- Pitfall trap
- Ground insects
- Sweepnet
- Flying insects
- Net
- Richness and evenness
- Species richness
- Number of different species in an area
- Higher the number of species higher the richness
- Species evenness
- Measure of relative abundance of each species in an area
- The similar the population size of each species the higher the species evenness
- Simpsons index of diversity
- Measuring species diversity
- 1- sum (n/N)2
- Species richness
- Importance of biodiversity
- Economical
- Food and drink
- Clothing
- Drugs
- Fuels
- Ecological
- Distruption to food chain
- Climate change
- Disruption to nutrients' cycle
- Loss of habitat
- Ethical
- Right thing to do
- have a right to exist
- Moral responsibilty
- Aesthetic
- Brings joy
- Site of attraction
- Agricultral
- More biodiversity provides more defence against pollution
- Source of food
- Protection against disastors
- Pest control
- New varieties
- Economical
- Conservation
- In-situ
- Advantages
- Both species and habitats are covered
- Less distruptive
- Larger populations can be covered
- Chances of recovery are greater
- Disadvantages
- Difficult to control factors that threaten species
- Poaching
- Predators
- Climate change
- Difficult to control factors that threaten species
- Methods
- Establishing protected areas
- Controlling and preventing the introduction of new species
- Protecting habitats
- Restoring damaged areas
- Legal protection
- Advantages
- Ex-Situ
- Methods
- Relocation of corgansims
- Breeding organsims
- Use of controlled environments eg: Botanical gardens
- Seed banks
- Advantages
- Protect individual organisms
- Predation and hunting can be managed easily
- Competition can be reduced
- Used to reintroduce species
- Health care
- Disadvantages
- Only small number can be conserved
- Less successful
- Involves adapting to new environment
- Methods
- In-situ
- Different levels
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