15 BISC_120 ConsGen

15 BISC_120 ConsGen - Exam 1 on Wednesday! (Sept 29) During...

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1 Exam 1 on Wednesday! (Sept 29) • During lecture period 9am- Stephanie & Yichun’s students in THH 212, everyone else in THH 101 10am-Jessica, Helen & Mona’s students in THH 102, everyone else in THH 101 • 9am students must take the 9am exam, 10am students must take the 10am exam • Covers lectures 3-14 (Edmands) • Multiple choice, matching, true/false, definitions, problem solving, and one essay • Bring a pencil, a pen and your USC ID card • No calculators or cell phones • Set your alarms!!!!!!!! 56.1, 56.2 Conservation Genetics 3 • Conservation biology is a young field that integrates: – Ecology – Behavioral ecology – Physiology – Molecular biology – Genetics – Evolution Conservation Genetics The field of Conservation Biology has grown in response to concerns over loss of biodiversity 4
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w 0GGJDJBM SFQPSUT TIPX UIBU XF`SF MPTJOH EJWFSTJUZ BU BMM MFWFMT ±FDPTZTUFN EJWFSTJUZ² TQFDJFT EJWFSTJUZ² HFOFUJD EJWFSTJUZ³ Source: IUCN 6 Why preserve biodiversity? 1. For its own sake. 7 Why preserve biodiversity? 2. For our own sake. Pacific Yew Tree ( Taxus brevifolia) We can’t afford to lose biodiversity! Loss of biodiversity has economic costs due to loss of ecosystem services such as - pollination, - nutrient cycling - purification of air and water - detoxification and decomposition of wastes - moderation of weather extremes
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9 What are the greatest threats to biodiversity? • Habitat loss • Introduced species • Overexploitation Habitat Loss w8FUMBOET± TBMU NBSTIFT± DPSBM SFFGT± TFBHSBTT CFET BOE TFB JDF DPOUJOVF UP EFDMJOF w&YUFOTJWF GSBHNFOUBUJPO BOE EFUFSJPSBUJPO PG GPSFTUT± SJWFST± DIBQBSSBM Source: NSIDC, 2010 Extent of Arctic sea ice 11 Introduced Species 12 Overexploitation 25% of world fish stocks overexploited, 52% fully exploited -U.N. Food & Agriculture Org. (FAO), 2009
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13 How is genetics used to aid conservation?
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This note was uploaded on 10/05/2010 for the course BISC 13004 at USC.

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15 BISC_120 ConsGen - Exam 1 on Wednesday! (Sept 29) During...

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