Describe the coloration of the fish you chose. Natural selection favors guppies that are harder to spot. Who is John Endler? The colors are splotched throughout the fish. I particularly liked the poecilia reticulata, a 1.
This happens because the drab guppies attract less predators and are easier to camouflage themselves in its surroundings. After viewing the predator gallery, pick the fish you find most interesting. What would happen to brightly colored guppies that were placed in a stream with many predators? Develop your own hypothesis about guppy coloration.
What did he study and where did he study it? A section of a stream, however, allows both guppies and predators to move freely. However they cannot completely blend in with their environment or they will have a very hard time mating.
Why or why not? They also have to reproduce -- and to do that, they have to attract mates. What would happen to mostly drab guppies that were placed in a stream with very few predators?
The answer lies in the fact that guppies have to do more than just survive. Shallow pools would be very hard for predators to get into, and the only ones that would make it there would be weak predators. This is sexual selection at work, and it is the force that pushes guppy coloration toward conspicuousness just as hard as predation pushes coloration toward drabness.
There may be several evolutionary reasons why female guppies prefer flashy males. Sexual selection favors colorful guppies.
Finally, small trickling streams could prevent larger predators from moving in. Being flashy and colorful also helps the guppies attract mates, so if they can survive while being colorful, the guppies will mate and pass on those survival traits. Some guppies are drabber because this allows them to blend in with their environment and decreases the chances that they will be eaten by a predator.
What other simulations could you run to find out more? Their drab coloring is only useful when trying to hide from predators. Parts of this worksheet was adapted from the one provided on the Teaching Evolution webpage.
My hypothesis was correct because, according to the simulation results, the tests in which there was a significant increase in predators showed an increase in drab males, and vice versa. The most fit individuals vary depending on the type of predators present because the guppies cannot be as flamboyant or predators will see them.
Also, there is less of a need to hide from predators in this case. The tests that commenced with a more biased quantity of bright or drab males also followed protocol by showing that bright males attract females in little predator situations, and predators in high predator situations.If being flashy attracts predators, why are male guppies so colorful?
Studies in the field of behavioral and reproductive biology have proved that courtship is of great importance in the population of guppy (Poecilia reticulate).
Flashy Fish: Data 1.
If being flashy attracts predators, why are male guppies so colorful? 2. What do you think is responsible for the variation. View Homework Help - Sex and the Single Guppy Worksheet from BIO at Germanna Community College.
Flashy Fish: Data 1. If being flashy attracts predators, why are male guppies so%(4). Laboratory 5: Flashy Fish 1. Complete the exercise on Flashy Fish located here: If being flashy attracts predators, why are males guppies so colorful?
Although drab coloration may enable a male guppy to avoid predation. Sex and the Single Guppy Teacher's Guide. If being flashy and colorful attracts predators, why do you think guppies are so colorful? to attact mates 2.
After viewing the guppy gallery, pick the fish you find most interesting. What does it mean that “male guppies live in a crossfire between their enemies and their would be mates”? We will write a custom essay sample on If being flashy attracts predators, why are male guppies so colorful?
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