Which growth strategy is favored where predation risk is high for young walleye?
Answer
Rapid early growth
Natural selection acts powerfully on the growth trajectories of walleye based on the risks present in their environment. In habitats where the risk of predation is high, there is a distinct evolutionary advantage conferred upon individuals that exhibit rapid early growth. This rapid development allows the young fish to quickly surpass vulnerable size classes, effectively reducing the duration during which they are susceptible to being eaten. Conversely, in environments characterized by highly unpredictable or variable food supplies, a more conservative strategy that emphasizes plasticity over initial speed might be favored, even if it results in slower initial development overall.
Related Questions
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