Ecology20125

Ecology20125 - Alert: Male Insects Seduce With Fake Finery...

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Valentine Alert: Male Insects Seduce With Fake Finery “Ladies: If you're looking for diamonds on Valentine's Day, be careful that your beau isn't giving out fakes. Scientists have found that, even in the animal kingdom, males hand out so- called nuptial gifts that seem to be worthless. Nuptial gift giving is a well-known phenomenon. Gifts frequently consist of food like nutritous prey items or dried insect fragments. The female typically eats her gift while copulation takes place. “ Hillary Maywell, National Geographic News, 2005
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Moodle #3 this is an analysis and interpretation question Assuming that an animal is foraging optimally, which of the following are most likely true? Choose one answer. A. More abundant prey or food is fed upon preferentially regardless of prey size. B. Searching time is always minimized C. Larger prey items are often fed on preferentially D. A & B must be true E. A, B and C must be true
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If the predator is foraging optimally they will look for a source of food that can be easily found as with option A and B. They will also if they can choose to feed on larger prey because larger prey will have more nutrient content in which the predator can use to keep healthy. According to the optimal foraging model, natural selection should favor a foraging behavior that minimizes the costs of foraging and maximizes the benefits (including the energy expenditure
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Ecology20125 - Alert: Male Insects Seduce With Fake Finery...

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