Biodiversity Loss

Biodiversity Loss (Biology 1051 April 21, 2011) What is biodiversity? Biodiversity = the variety of living organisms on earth * tail assembly be applied in many ways why c ar? * moralistic/ethical * Aesthetic * Ecosystem function * frugal Notes: A chemical within the dark of the Pacific yew, called taxol, is knock-down(prenominal) in the treatment of ovarian cancer, breast cancer, and lung cancer. (Pacific yew tree | genus genus Taxus brevifolia) Notes: The blue whale is the largest mammal in the domain of a function and the largest carnal ever known to have break down on earth. (When species is deep in thought(p) its lost forever) Where is around biodiversity? Biodiversity varies with latitude As you prevail away from the equator toward the pole in either direction, biodiversity is reduced. Factors that influence biodiversity 1. solar Energy Available great access to solar energy, the provide for all life, provides increased spe cies richness. 2. evolutionary History of an Area Communities veer over meter. The more clock time that passes without a climatic event, such as an ice age, the great the diversity in an area. 3. browse of Disturbance A habitat with an intermediate amount of solicitude tends to have the greatest species richness.

Biodiversity Hotspots chromatic Reefs: Philippines Tropical Rain Forests: rib Rica Islands: Madagascar Note: There are twenty-five biodiversity hotspots around the world that, while covering slight than 1% of the worlds area, have 20% or more of the worlds species. Two Categories of Extinctions Extinctions generally advert into two categories: * Mass Extinctions a large number of species ! mystify extinct over a short period of time due to extraordinary and fast environmental change. * Background Extinctions these extinctions pass off at lower pass judgment during times other(a) than mass extinctions. Current extinction judge are 1000x greater than background rates During mass extinctions, a species biological apprehension does not influence risk of extinction. With...If you want to get a full essay, order it on our website: OrderEssay.net

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