Biodiversity

Professor X

What is Biodiversity?Different Species

Different Biomes Different Ecosystems

Types of Diversity

Genetic SpeciesEcosystem

How to Measure Biodiversity

Alpha Diversity Diversity within a particular area, community, or ecosystem

Measured By:Counting the number of species in an area

Comparing the number of species unique to each ecosystem

Multiplying the Alpha and Beta diversities in a region

Beta Diversity Species diversity between ecosystems

Gamma DiversityOverall diversity for different ecosystems within a region

Concerns

1/8 of all plant species are on the verge of extinction

140,000 species lost in one year

Threats

Habitat Destruction

Invasive Species

Pollution

Population

Overkill

Benefits

WaterOil

Rubber Oxygen

“Biodiversity boosts ecosystem productivity… [and] enables the ecosystem to prevent and recover from a variety of disasters.”

www.globalissues.org

Significance