preview

Guppy Coloration

Decent Essays

Guppy Coloration is almost completely controlled by predation and sexual selection, and can change completely based on the environment.
Even when starting with the same initial guppy color (even mix), and having the same amount of generations (10), the color percentages seem to be impacted greatly by the predators present in the habitat. When only 30 rivulus are in the habitat, sexual selection is more prominent and predators have less of an impact on the guppy’s coloration, resulting in 70% of the guppies having the brightest color, 16% of bright, 3% drab, and 5% drabbest. There is a noticeable gap in the number of bright and drab shades, with the brightest being the most plentiful thanks to sexual selection and lack of threat from predators.

Get Access