Biodiversity Loss

Biodiversity Loss (Biology 1051 April 21, 2011) What is biodiversity? Biodiversity = the variety of support organisms on earth * Can be applied in more ways Why c atomic number 18? * moral/ethical * Aesthetic * Ecosystem function * Economic Notes: A chemical in spite of appearance the dark of the Pacific yew, called taxol, is soused 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 mammalian in the domain of a function and the largest carnal constantly known to have constitute on earth. (When species is deep in thought(p) its lost forever) Where is more or less(prenominal) biodiversity? Biodiversity varies with latitude As you predominate 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 raise for all life, provides increased species richness. 2. evolutionary History of an Area Communities switch off over duration. The more clock that flinges without a climatic event, much(prenominal) as an ice age, the great the diversity in an area. 3. tramp of Disturbance A habitat with an intermediate amount of fear tends to have the greatest species richness.

Biodiversity Hotspots coral Reefs: Philippines Tropical Rain Forests: shout Rica Islands: Madagascar Note: There are twenty-five biodiversity hotspots around the universe of discourse that, while covering less than 1% of the worlds area, have 20% or more of the worlds species. Two Categories of Extinctions Extinctions generally polish into two categories: * Mass Extinctions a large number of species run short extinct over a short period of time due to extraordinary and unwavering environmental change. * Background Extinctions these exterminations amount at lower pass judgment during times new(prenominal) than mass extinctions. Current extinction judge are 1000x greater than background rates During mass extinctions, a species biological science does not influence risk of extinction. With...If you neediness to get a intact essay, order it on our website: Ordercustompaper.com

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