Summarize the findings illustrated in two or three sentences. Identify an evolut

Question

Summarize the findings illustrated in two or three sentences. Identify an evolutionary force acting in the experiment these data represent. In other words, what is the interpretation of these results? Is the force examined in the experiment a microevolutionary force or a macroevolutionary force? What are the likely evolutionary consequences of this force, either in general or in this specific case? Explain your answer using appropriate biological terminology like population or species.

0 o 8 CO -2 0 3 2-10 2 Gill raker length (PC2) FIG. 2. Cubic spline estimates of fitness functions for gill raker length (PCA-2), in the Cedar Lake population. Two performance variables serve as proxies for fitness: (A) body size variation (PCA 1) and (B) relative gonad mass. Cubic splines (thicker center line) are bracketed by their 95% confidence intervals estimated from 1000 bootstrap replicates.

Explanation / Answer

Summarize the findings illustrated in two or three sentences.

Individuals with intermediate gill raker lengths (PC2) had lower mean body size (Fig. 2A) and relative gonad mass (Fig. 2B) than individuals with long or short gill rakers.

Identify an evolutionary force acting in the experiment these data represent.

intraspecific competition drives disruptive selection occurring in this case.

In other words, what is the interpretation of these results?

The figure shows the disruptive selection in which individuals with long or short gill rakers is favored by the section and individuals with intermediate gill raker lengths is eliminated.

Is the force examined in the experiment a microevolutionary force or a macroevolutionary force?

Because the evolution is occurring on a small scale at species level, it is a microevolution.

What are the likely evolutionary consequences of this force, either in general or in this specific case? Explain your answer using appropriate biological terminology like population or species.

The whole population of gill rakers will separate and evolved as two species, one having individuals with short gill rakers and other having individuals with long gill rakers. The individuals with intermediate gill raker lengths will be eliminated.

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