Founder Effect – a type of genetic bottleneck

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Presentation transcript:

Founder Effect – a type of genetic bottleneck http://www.cbsnews.com/stories/2005/06/08/60II/main700519.shtml amish people

Amish People Small group of Amish people moved from Switzerland to US in 1800s = founder effect Their way of life and religious beliefs keep their population isolated = decreased genetic diversity

Florida Panther Critically endangered Low genetic diversity Inbreeding related defects Poor sperm Physical abnormalities Heart mumurs What caused this genetic bottleneck? Only 100 left

Florida Panther Now outbred with sub-species Only 100 left

Northern White Rhino Extinct in the wild 8 in captivity, but not viable  What caused the genetic bottleneck? Us! We hunted / poached them for their horns