Predation Effects on Fish Coloration

What conclusion would you draw from the data presented?

a) Predation results in selection for more drab coloration in killifish pools. b) Predation results in selection for more drab coloration in pike-cichlid pools. c) Predation has no effect on coloration in guppies. d) Predation results in selection for brighter coloration in pike-cichlid pools.

The conclusion from the information given is:

Guppies are selected for more drab color patterns in response to predation.

According to the data, the correct answer is option (a) - predation results in selection for more drab coloration in killifish pools. The study suggests that guppies adapt to predation by developing a more drab coloration to blend in with their surroundings and avoid being easily spotted by predators.

Furthermore, researchers hypothesized that the preference of female guppies for partners with brighter colors could change if predation pressure decreases. This indicates that the environment and external pressures play a significant role in shaping the characteristics of prey populations.

Natural selection in prey populations is influenced by selective predation, which can reduce competition among survivors. While both selection and competition impact prey dynamics, they are often not studied together, making this research valuable in understanding the effects of predation on fish coloration.

Predation, the act of one animal consuming another, is a common interaction in nature. Examples include shrews hunting worms and insects, owls preying on mice, and wolves hunting moose. These interactions showcase the impact of predation on the survival and adaptation of different species.