Sex and the Single Guppy
Autor: k_stephanee • May 2, 2012 • Essay • 270 Words (2 Pages) • 1,607 Views
Title: Sex and the single Guppy
Purpose:
The purpose of this is to demonstrate how guppies survive swimming among different predators.
Hypothesis:
If predators are feeding more on the brightly colored guppies then they will be eliminated from the gene pool and the population will become more drab.
Results:
Simulation 1
Initial Population: Mostly Bright
Predators: 30 Rivulus
Start Finish
Guppies: 134 Guppies: 238
Generation: 2 Generation: 7
Week: 1 Week: 144 (3 years)
Brightest: 47% Brightest: 47%
Bright: 30% Bright: 40%
Drab: 17% Drab: 10%
Drabbest: 6% Drabbest: 2%
The number and type of predator had no affect on the guppy coloration due to the balance at the start.
Simulation 2
Initial Population: Mostly Bright
Predators: 30 Rivulus 30 Acara 30 Cichild
Start Finish
Guppies: 115 Guppies: 216
Generation: 2 Generation: 7
Week: 1 Week: 144 (3 years)
Brightest: 40% Brightest: 4%
Bright: 26% Bright: 16%
Drab: 24% Drab: 34%
Drabbest: 14% Drabbest: 47%
The
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