systematic study of biodiverstiy, works to decipher the evolutionary and ecological orgins of biodiverstiy, attempts to identify ways to maintain biodiversty for good of human pop
Who is Rachel Carson
Silent Spring, 1962..Helped lanch the enviormental movement
what is the main threat to biodiversity?
When will people sustain biodivesity..
when they make a living doing so
sloped forested area is logged in strips, working p the slope
First slighten around 1600, became extinct in 1681
Last known individual died at hobart zoo 1933
Last seen in florida 1920
list confirmed sighting louisiana 1943
The Great Auk
shot while nesting in iceland 1844, chicks too
High latitudes, permafrost lies beneath surface, nutrient cycling very slow, no trees, cold open grasslands: ALASKAN TUNDRA
Taiga, Northern Europe, Asia, N. America, Cold dry winters, mild humid summers, spruce fir trees, birch and aspen, form islands in the southn app. mtns
Temperate Deciduous Forest
Cool/Cold winters, warm rainy summers, Associated with Oak, Pine, Hickory, Maples... Eastern U.S, western Europe and much of Japan. Biome of Boone, NC
Tropical Rain Forest:
Constant temp all year, heavy rainfall, distinct wet/dry season. 10 Degrees of equatior, broad leaf trees, vines, epiphytes, high biological productivity, very rapid nutrient cycling..West africa, malaysia, amazon basin
Winters are warm and dry, summers are very hot sporadic rain, little vegetation, southwest us, north africa, central austraila
Mediterranean Climate, cool rainy winters, hot dry summers, dense shrubs, grapes/olives. Many Fires!!
Warm Winters, hot summers, defined by wet/dry seasons, tall grasses w/ sporadic trees, Many large grazing mammals, Central Africa
cold dry winters, warm wetter summer, shorter grasses and very few trees, Bison and Pronghorn, Central US