Genetic Drift and the Founder Effect
...Amish of Lancaster County,” a small community that originated from a trio of immigrants. The emergent community however developed a convergent high frequency of “Ellis-van Creveld syndrome” leading to higher frequency and more significant dwarfism as compared to the original population (Russel, Hertz and McMillan, 2011, p. 440).
Jurmain, R., Kilgore, L. and Trevathan, W. (2008). The essentials of physical anthropology. Belmont, CA: Cengage Learning
Russel, P., Hertz, P. and McMillan, B. (2011). Biology: The dynamic science. Belmont, CA: Cengage Learning
Shulka, A. (2009). Genetic material and analysis, volume 1. New Delhi, India: Discovery Publishing House... drift and the founder effect...