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Biological DiversityBiological Diversity
Professor XProfessor X
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What is Biodiversity?What is Biodiversity?
The variation of life forms within a given The variation of life forms within a given ecosystem (Ex: Earth) ecosystem (Ex: Earth)
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What does it mean?What does it mean?
Our biodiversity today consists of millions Our biodiversity today consists of millions of distinct biological species, which is the of distinct biological species, which is the product of nearly 3.5 billion years of product of nearly 3.5 billion years of evolution.evolution.
In Short: In Short: Biodiversity is diversity Biodiversity is diversity among biological speciesamong biological species
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Diversity: Three different groupsDiversity: Three different groupsGenetic Diversity
Diversity of genes within a speciesSpecies DiversitySpecies Diversity
Diversity among species in an Diversity among species in an ecosystemecosystem
Ecosystem Diversity
Diversity of a habitat in a given unit area
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Alpha Diversity
Beta Diversity
Gamma Diversity
Environmentalist, Jared Diamond, says Environmentalist, Jared Diamond, says H.I.P.P.O.H.I.P.P.O. is to blame: is to blame:
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IInvasive Species nvasive Species
PPollutionollutionHuman OverHuman OverPPopulationopulation
OOverkillverkill
HHabitat destruction abitat destruction
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What Does it Mean for Us?What Does it Mean for Us?
Conservation of Earth’sConservation of Earth’s
biodiversity is vital becausebiodiversity is vital because
we get so much from thewe get so much from the
Earth. Earth.
Aesthetic values Aesthetic values of a of a pretty flower or a pretty flower or a beautiful animalbeautiful animal.
Natural resources (oil, rubber, water, oxygen, and more)
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“ “ Biodiversity boosts ecosystem productivity Biodiversity boosts ecosystem productivity where… all [species] have an important role… where… all [species] have an important role… This is… This is… useful for mankind useful for mankind as a larger number of species of as a larger number of species of plants means more variety of crops and a larger number plants means more variety of crops and a larger number of species of animals ensure that of species of animals ensure that thethe ecosystem is ecosystem is naturally sustainednaturally sustained..””
~ Globalissues.org ~ Globalissues.org