Climate and Terrestrial Biodiversity G. Tyler Miller ’ s Living in the Environment 14 th Edition Chapter 6 G. Tyler Miller ’ s Living in the Environment 14 th Edition Chapter 6
Chapter 6 Day 1 “ Who ’ ll Stop the Rain ” Creedence Clearwater Revival Tests 25 Notes35 Biomes 30
Chapter 6 Day 2 “ Elephant ” Pete Seeger Warm-up 20 Burlese funnel Lab 50 Debrief Lab 10 Talk about Forecast 20 Talk book selection
Chapter 5 Day 1 “Ghost World” Amy Mann “Ghost in a Crowd” Sister Hazel Chapter 5 Notes
Chapter 5 Day 3 “Blue Skies” Willie Nelson Chapter 5
Key Concepts Factors influencing weather- short term weather events Factors influencing weather- short term weather events Factors influencing climate- formed over decades climate is long term weather patterns Factors influencing climate- formed over decades climate is long term weather patterns Effect of climate on distribution of biomes Characteristics of major biome types
Chapter 6 Day 3 “ November Rain ” Guns and Roses Notes
Seasons… Climate or Weather? Fig. 6-7 p. 106
Climate Temperature Precipitation Uneven heating Seasons Earth ’ s rotation Properties of air and water Fig. 6-5 p. 105
Figure 6-8 Page ºN 30ºN 0º 30ºs 60ºS Cold deserts Westerlies Forests Hot deserts Northeast trades Forests Equator Hot deserts Forests Southeast trades Westerlies Cold deserts
Air Circulation Fig. 6-8, p. 107 Fig. 6-10, p. 107
Weather basics Weather often caused by leading edge of fronts –Warm front boundary between warm front and cold air it replaces –Cold front air stays close to ground associated with thunder storms. Jet stream large air mass which circles the earth strong influence on weather patterns
Weather often caused by leading edge of fronts –Warm front boundary between warm front and cold air it replaces –Cold front air stays close to ground associated with thunder storms. Jet stream large air mass which circles the earth strong influence on weather patterns
Weather: A Brief Introduction Weather Warm front Cold front Weather extremes Fig. 6-2 p. 102
Thunderhead cloud the result of a when advancing warm air meets retreating cold air
Drill:
Figure 6-3 Page 103 Descending cool air Severe thunderstorm Tornado forms when cool downdraft and warm updraft of air meet and interact Rising warm air Severe thunderstorms can trigger a number of smaller tornadoes Rising updraft of air Warm, moist air drawn in
Hurricane in NH Typhoon in SH Rising winds exit from the storm at high altitudes. The calm central eye usually is about 24 kilometers (15 miles) wide. Moist surface winds spiral in towards the center of the storm Gales circle the eye at speeds of up to 320 kilometers (200 miles) per hour.
Climate ???
Short-Term Climate Changes: ENSO Fig p. 108
El Nino Usually noticed around Christmas time Westerly winds weakened or reversed Occurs when a change in the direction of the surface winds warms the coastal surface waters and suppress upwellings off the coast of SA. EN Surface Oscillation- change in the pressure near Tahiti due to this change Surface waters warm along Northern south America causes upwelling to slow or stop. Has global effects but locally is measured off the coast of South America and in Tahiti
El Niño Unusually warm periods Unusually high rainfall Drought
La Nina Opposite in terms of the effect on upwellings and pressure in Tahiti but has different effects on global climate
La Nina Cooling counterpart to El nino More Atlantic Hurricanes Colder winters in Canada and NE Warmer drier winters in south east and southwest US Wetter in Pacific NW Very wet (flooding) in Southeast Asia Wildfires in Fl
Wind Movement of surface water Diving birds Nutrients Upwelling Fish Zooplankton Phytoplankton South America
Where is El Nino, La Nina, Normal?
NOAA
Cool Animations
El Niño Unusually warm periods Unusually high rainfall Drought
Greenhouse Effect Greenhouse gases Fig p. 110
Rain Shadow Effect Microclimates Leeward/ Windward Microclimates Leeward/ Windward Fig p. 110
Microclimates Mountains –Altitude –Shadow Cities –Heat island effect Ocean –Sea breezes
Biomes: Latitude and Altitude Fig p. 112 Refer to Fig p. 112
Biomes: Climate and Life on Land Relationship between latitude and altitude Desert Biomes Grassland, Tundra and Chaparral Biomes Forest Biomes Mountain Biomes
Desert Biomes Tropical deserts Refer to Fig p. 114 Temperate deserts Cold deserts
Tropical Desert
Grassland, Tundra, and Chaparral Biomes Tropical grasslands and Savannas Temperate grasslands Polar grasslands (Arctic tundra) Permafrost Alpine tundra Chaparral Refer to Figs. 6-23, 6-24, and 6-25 pp
Temperate grassland (Lawrence, Kansas) Temperate Grassland
Forest Biomes Tropical rainforest Temperate deciduous forest Evergreen coniferous forest (boreal forest) Temperate rain forest Refer to Figs. 6-29, 6-30, 6-31, and 6-32 pp
Mountain Biomes Mimic latitude Islands of biodiversity
What factors influence the amount of sun that hits the earth?
The low latitudes are near the poles.
What factors moderate temperature?
Which biomes tend to be most fragile? Why?
What threats exist for each biome?
Which biome has the greatest Diversity? Why?