Biodiversity Loss

Biodiversity Loss (Biology 1051 April 21, 2011) What is biodiversity? Biodiversity = the variety of living organisms on earth * burn down be applied in many ways wherefore cargon? * moralistic/ethical * Aesthetic * Ecosystem function * sparing Notes: A chemical within the dark of the Pacific yew, called taxol, is inviolable 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 function on earth. (When species is deep in thought(p) its lost forever) Where is near 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 species richn ess. 2. evolutionary History of an Area Communities veer over era. The more quantify that passes without a climatic event, such as an ice age, the greater the diversity in an area. 3. browse of Disturbance A home ground with an intermediate amount of solicitude tends to have the greatest species richness.

Biodiversity Hotspots coral 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 scratch into two categories: * Mass Extinc tions a large number of species aim extinc! t over a short period of time due to extraordinary and fast environmental change. * Background Extinctions these extinctions add up at lower pass judgment during times former(a) than mass extinctions. Current extinction judge are 1000x greater than background rates During mass extinctions, a species biological lore 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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