BI308 Lecture Notes - Lecture 20: Sexual Coercion, Bluegill, Nuptial Gift
Document Summary
The longer a partner has been together, the more a cost may be to divorce. The time and energy it takes to find a new partner. Cost of aggression forcing her way into a partner, she may get aggression from the female she trying to push out. As partnerships go on the cost of switching partners may out weigh the benefits, so it may occur earlier in life than later on. Alternative mating tactics and strategies (look at page 131) Nuptial gift types in scorpion flies and hanging flies. May abandon his forced copulation to presenting a dead fly to get female. As their condition and ability to make those gifts, they switch to forced copulation. Get some reproductive success which is better than none. Reproductive success is different between tactics , some represent making the best of a bad job. Should shift when they can, opportunity, or age etc.
