Bio36_06_Biodiversity - 1 2 3 1 2 4 5 1 2 6 1 2 7 Overview...

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1 Overview – Decline of Biodiversity – Saving Wild Species – Protecting Biodiversity Internationally The Value of Wild Species • Biological wealth – Most of ecosystem capital • Instrumental value – Benefits humans (anthropocentric) – Loss of biodiversity costs billions (trillions?) each year •Especially hurts world’s poorest people • Intrinsic value – Value for its own sake Instrumental Value • Food – Wild species more resilient than cultivars • Wild genes – Genetic bank •Seed banks, zoos, etc. • New food plants – 30 species in use – 30,000 edible • Raw materials – Wood, rubber, oils, etc • Medicine – Ethnobotany – Bioprospecting – E.g., rosy periwinkle from Madagascar • Justice concerns – Local people may not benefit when patented Instrumental Value Instrumental Value – Ecotourism – Hunting/sportfishing • Scientific – Understanding species – New medicines – Protection from loss Intrinsic Value • Environmental ethics – Extinction is forever •Loss of valuable species – Right to existence – Responsibility toward the natural world • Religious support – Islam – Native American religions – Hindu, especially the Chipko movement Intrinsic Value • The land ethic 1 2 3 1 2 4 5 1 2 6 1 2 7
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2 – Preservation of ecosystems – Aldo Leopold •“A thing is right when it tends to preserve the integrity, stability, and beauty of a biotic
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This note was uploaded on 01/12/2012 for the course BIOLOGY 36 taught by Professor Teresafinnern during the Fall '11 term at Riverside Community College.

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Bio36_06_Biodiversity - 1 2 3 1 2 4 5 1 2 6 1 2 7 Overview...

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