update id: eee105 password: prairie
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http://life.uiuc.edu/animalbiology/105/http://life.uiuc.edu/animalbiology/105/ID: eee105ID: eee105Password: prAIRiePassword: prAIRie
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http://life.uiuc.edu/animalbiology/105/http://life.uiuc.edu/animalbiology/105/ID: eee105ID: eee105Password: prAIRiePassword: prAIRie
Proposal was to mandate 36 mpg by 2015Proposal was to mandate 36 mpg by 2015For 22 years average has been 24 mpgFor 22 years average has been 24 mpg
27.5 mpg for sedans27.5 mpg for sedans
20.7 mpg for SUV’s20.7 mpg for SUV’s
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Antarctica
This was an ice shelf in East AntarcticaThis was an ice shelf in East Antarctica
Antarctica
West Antarctica rests on deep bedrockWest Antarctica rests on deep bedrockIf it detaches, sea level will riseIf it detaches, sea level will rise 5 - 6 meters5 - 6 meters
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Oceans
http://life.uiuc.edu/animalbiology/105/http://life.uiuc.edu/animalbiology/105/ID: eee105ID: eee105Password: prAIRiePassword: prAIRie
OceansOceans
• Weather generatorWeather generator• Transport surface Transport surface : Voyages: Voyages
Ancient Seafarers
Ancient Seafarers
• Austronesian mariners
Ancient Seafarers
Ancient Seafarers
• Austronesian mariners
Heyerdahl has seen the pollution of the oceans up close
tartar
Heyerdahl has seen the pollution of the oceans up close
tar
plastics
Oceans
Jaques Cousteau
Oceans
• Both Cousteau & Heyerdahl became ardent environmentalists
• “The oceans are ill”
Oceans• e.g. abalone
Oceans• e.g. abalone
Productivity
• Ocean food chains begin with phytoplankton
Phytoplankton
• “Grass of the Sea”
diatoms
Phytoplankton
dinoflagellatesdinoflagellates
• The producers of the seaThe producers of the sea
Zooplankton
• “insects of the sea”• Primary consumers
Marine Food Chain
Phyto-Phyto-planktonplankton Zoo-Zoo-
planktonplankton fishfish
Marine Food ChainBlue WhaleBlue Whale
Marine Food ChainBlue WhaleBlue Whale feeds on krillfeeds on krill
Marine Food Chain
wintering groundswintering grounds
Blue whale annual migrationsBlue whale annual migrations
Productivity
• Measured by the concentration of phytoplankton
Productivity
Open ocean is a “desert”Open ocean is a “desert”
Continental shelves more productiveContinental shelves more productive due to nutrients in runoffdue to nutrients in runoff
Gulf Stream
spring plankton blooms
Georges Bank
Galapagos productivity
upwellings stimulate productivityupwellings stimulate productivity iron is the limiting nutrientiron is the limiting nutrient
adding iron sparks phytoplankton bloomsadding iron sparks phytoplankton blooms a method of removing COa method of removing CO22 ??? ???
Red Tides
dinoflagellate bloomsproduce neurotoxins
Red Tides
Red TidesRed Tides
Red Tides