Costs & Benefits
This research topic submitted by Chris Myers on 3/24/98.
Well focused and developed ideas. My main suggestion is to remember that most important traits are trade-offs. To understand the sib spacing fully, consider the costs as well as the benefits to spacing. For example, delaying reproduction has a high cost in reproductive success from an evolutionary perspective, so would you expect high resource households to have sibs closer together, since the price would not be so high for them? Which resources are the critical ones to measure here? What social factors might cause the pattern to be reversed and, if that happens, does this undermine the the utility of an evolutionary explanation at this level?
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