Transcript Conserve Biodiversity

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Only 417 nesting pairs in the lower 48 states in 1963
Listed as an endangered species in the ESA of 1973
Factors:
1. Habitat Destruction: Clearing forests near lakes/rivers
2. Hunting
3. Reproductive Failure
a) Ingested food contaminated with DDT
b) Caused eggs to be thin shelled & cracked before
embryos were mature
c) Banning DDT (1972) started the recovery process
d) Mercury, lead and selenium were also environmental
pollutants that harmed reproductive health
HOW SOLVED??
!!!!!!!Captive breeding programs!!!!!! Removal of eggs from
nests in nature & raising baby eagles in refuges
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CONSERVE BIODIVERSITY
1. DIRECT VALUE.
• FOOD.
• NATURAL PRODUCTS.
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LUMBER
RUBBER
OILS
CONSERVE BIODIVERSITY
2. ECOSYSTEM SERVICES
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IMPORTANT ENVIRONMENTAL
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HUMANS AND OTHER ORGANISMS
ON THESE SERVICES.
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EX :
WITHIN ECOSYSTEMS PROVIDE
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ARE COMPLETELY DEPENDENT
FORESTS:
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FUNCTIONS THAT ORGANISMS
PROVIDE WATERSHEDS WHERE WE OBTAIN FRESH WATER
REDUCE THE
# AND SEVERITY OF LOCAL FLOODS
PREVENT SOIL EROSION
INSECTS: POLLINATION!
ANIMALS: KEEP SPECIES POPULATION IN CHECK
EARTHWORMS/BACTERIA: MAINTAIN SOIL FERTILITY & DECOMPOSITION
CONSERVE BIODIVERSITY
3. SCIENTIFIC & EDUCATIONAL VALUE
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GENETIC RESERVES
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GENETIC ENGINEERING
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CONSERVE BIODIVERSITY
4. BIOLOGICAL CONTROL AGENTS
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5. HUMAN HEALTH
• ANTIBIOTICS – PENICILLIN FROM FUNGUS!
• ROSY PERIWINKLE FROM MADAGASCAR CURSE LEUKEMIA.
• AZT – AIDS TREATMENT IS FROM AN OCEAN SPONGE
6. POTENTIAL FOR FUTURE USES
• WHO KNOWS WHAT ELSE WE’LL FIND???
CONSERVE BIODIVERSITY
7. HUMAN RIGHTS
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8. RECREATION/AESTHETICS/ECOTOURISM
• VACATIONS, SCUBA DIVING, HIKING, CAMPING, TOURISM
• BEAUTY OF NATURE / ART / MUSIC, INSPIRATION
• ECOTOURISM BRINGS MONEY & JOBS TO AN AREA
9. ETHICAL/INTRINSIC VALUE & BIORIGHTS
SELF-PERPETUATION
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EVERYTHING HAS A RIGHT TO LIVE. IF THEY SURVIVE, THEY’LL SELFPERPETUATE, SO FUTURE CONSERVATION MAY BE LESS NECESSARY.
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• UNEP = UNITED NATIONS ENVIRONMENT PROGRAMME
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GO, IGO, NGO?
• CITES – CONVENTION ON INTERNATIONAL TRADE IN
ENDANGERED SPECIES OF WILD FAUNA AND FLORA.
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• CAPTIVE BREEDING & ZOOS
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PROBLEMS
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• FLAGSHIP SPECIES
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“UMBRELLA SPECIES” –
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