Thursday, March 27, 2014

Evoblog 13 Weblab Guppy

In this lab I learned that the guppy needs to be camouflaged well in order to survive. John Endler discovered that there is a wide variation of guppies from different streams and even those in different parts of the stream seemed different. In this lab I was to choose the guppy color types with the number of predators to test out whether predators cause variation in color. From my choice of even mix and 30 different types of predators, the process shows that despite starting with equal percentage of male guppies after weeks, with the predators in the population,the bright colored males were in less than the drab colored ones. This resulted because the brightly colored guppies are more likely to be seen by predators so usually parents pushed for drab colored guppies. However the more flashier male receives the most females to reproduce since it shows that they are strong and healthy. I learned that male guppies live in the crossfire between their enemies and would-be mates, with the predators and sexual selection ever there in their world. I give this lab a 10 out of 10 since it provided well information and explained idea of sex and the single guppy well.



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