J Lecture 4 - The Benefits of Biodiversity

J Lecture 4 - The Benefits of Biodiversity - Life is...

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Life is concentrated in oceans and in tropical regions. Life is concentrated in oceans and in tropical regions.
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Life is concentrated in oceans and in tropical regions. Life is concentrated in oceans and in tropical regions.
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Life is concentrated in oceans and in tropical regions. Life is concentrated in oceans and in tropical regions.
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Life is concentrated in oceans and in tropical regions. Life is concentrated in oceans and in tropical regions.
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Bottom line: these 3 things are inter Bottom line: these 3 things are inter - - related, you related, you can can t have one without the others! t have one without the others! Species diversity Genetic Diversity Ecosystem diversity = BIODIVERSITY BIODIVERSITY
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• Utilitarian – Goods – Services – Information • Intrinsic – Esthetics, psycho-spiritual, enjoyment What values does What values does biodiversity biodiversity have? have?
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What does biodiversity What does biodiversity do for you? do for you? Provides food, clothing, housing and medicine Provides food, clothing, housing and medicine Provides billions of dollars worth of services Provides billions of dollars worth of services (pollination, pest control, genetic diversity for crops) (pollination, pest control, genetic diversity for crops) Regulates the earth Regulates the earth s atmosphere and climate s atmosphere and climate Provides flood and drought control Provides flood and drought control Recycles waste and nutrients Recycles waste and nutrients Provides great places for recreation and relaxation Provides great places for recreation and relaxation
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Food Shelter (clothing and housing) Medicine
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Food Food
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uman reliance on limited domestic food sources as an argument for biodiversity
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12,000 plants identified as food sources, but only ~100 cultivated 90% of world food supply from 6-8 plant species The vast majority of the world relies on 3 species of grass: rice, wheat, and corn Cultivated plants have reduced genetic diversity
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The top 3 food producing species are all grasses: Rice, Wheat and Corn. All could be vulnerable to one disease or pest specializing on this group.
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Biodiversity offers many additional food sources
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This note was uploaded on 05/18/2008 for the course BIO 105 taught by Professor Adler,irschick,podos during the Fall '08 term at UMass (Amherst).

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J Lecture 4 - The Benefits of Biodiversity - Life is...

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