Question

A male cardinal’s red color is an example of a trait affected by natural selection. The females of the species choose mates based on the vibrant colors of the males’ feathers. If females begin using different criteria than feather color when they choose mates, what would most likely happen to the color of the male cardinals over time?

Answer 1

Explanation:

Decreased shade variation of red color because no trait form is now advantageous.

Explanation:

Earlier females choose mates based on vibrant colors of male feathers, therefore, there was a selection pressure on males to evolve the trait so that they get their mate and pass their genes to the next generation.

So when females switched to other criteria other than feather color to get their mate then the importance of color trait gets reduced and the trait becomes non-advantageous for male cardinal.  

Therefore due to this change, there is no longer necessity remained to evolve the color trait so the shade variation will decrease over time as now no trait form remained advantageous for this bird species.

Answer 2

When females began to choose mates based on variables other than feather colour, the metamorphosis of the tail feather's colour decreased.

• The only reason for the transition is because of to the pressure of selection. Female species choose their mates based on a measurement that includes the colour of the eyes, the colour of the feathers, and many other factors.

• The male species is chosen by the opposite gender, who chooses the male cardinal's red colour. When other criteria mattered more than the red colour, sexual selection pressure dropped, resulting in a decrease in the colour diversity of male cardinal tail feathers.

                                                                 

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