Why so many species? the factors affecting biodiversity [Principles of evolution, ecology and behavior]

Educação Superior::Ciências Biológicas::EcologiaPresents part of the course, Principles of evolution, ecology and behavior, where Professor Stearns explains biodiversity from several perspectives. An ecological point of view tries to determine how necessary diversity is for an ecosystem to function. An economic point of view tries to capture the value of the "services" nature provides for mankind. An evolutionary point of view shows how artificial the human "right" to dominance is. Finally, a personal point of view captures the emotional basis for the values that humans place on biodiversit