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Evolution Lecture 26 Chapter 16 Topics for today: Modes of speciation and supporting evidence 1. Allopatric speciation (finished last lecture) 2. Peripatric speciation 3. Parapatric speciation 4. Sympatric speciation Definition of a subspecies Rates of speciation EvoBeaker: Snails Exercise 6 B. Peripatric speciation: founder effect Most controve
International Center for Well-Being (ICWB) | Organization Profile
There have been many theories about the real meaning of and happiness in life. Wellbeing as a term has long been defined with economic therories focusing wealth, later on, Amaryta Sen rather centered the wellbeing around social values such as freedom, personal development and activities, an individual values and enjoys. It goes even further and defines happiness as the freedom of choice and functi
Causes of speciation
Geographic isolation In the fruit fly example, some fruit fly larvae were washed up on an island, and speciation started because populations were prevented from interbreeding by geographic isolation. Scientists think that geographic isolation is a common way for the process of speciation to begin: rivers change course, mountains rise, continents drift, organisms migrate, and what was once a contin
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IngentaConnect Effects of Quaternary Climatic Change on Speciation in Mammals
The effect of the last glacial age on speciation and population g...: Ingenta Connect
Why Do Some Tropical Forests Have So Many Species of Trees?
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/S/Speciation.html
http://www.science.siu.edu/zoology/King/304/ch11.htm
