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BIOC54H3 Lecture : Lecture Notes

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School
UTSC
Department
Biological Sciences
Course
BIOC54H3
Professor
Maydianne Andrade

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Document Summary

March 26, 2011: mating systems is who mates with whom, and under what conditions. The different ways in which animal societies are structured with respect to what individuals mate and pair bond with each other. If we look at the number of individuals someone mates with: 1 = monogamy. I t was hard for people to figure out what was really going on. It is based on the observed interactions between individuals. Because of differences in parental investment: why do we have systems that are not polygynous, male genetic monogamy is a puzzle, about 3% of mammals and 90% of birds are monogamous. Social monogamny is far more common in birds. www. notesolution. com. Females have a short period receptivity, and produce eggs. And males will only fertilize one female"s eggs: sea horses : similar to pipe fish. The females give eggs to only one male, and male accepts eggs from only one female.

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Related Questions

1.

Suppose you are studying a species of primate. Female primates generally live in 5-km2 home ranges that overlap very little with neighboring home range territories. The primates can travel up to 5 km in one day and both males and females care for young. Which type of breeding system is most likely under these circumstances?

Select one:

a. Monogamy

b. Polyandry

c. Polygyny

d. Promiscuity

2.

In a case where critical resources are distributed evenly in space and males provide about half of the total parental care, the mating system is most likely to be

Select one:

a. polyandry.

b. promiscuity.

c. polygyny.

d. monogamy.

Both questions form fomr the same concepts. I'm mostly confused with the promiscuity aspects such as the caring for the offspring.

I hope this can be sorted out somehow.

Sexual conflict is stronger when partners are promiscuous thanwhen they are monogamous. Assume that males and females mate twicein their lifetime. They can either mate with the same individualtwice or with two different individuals. Provide a simplegame-theoretical model of how a male and a female shouldallocate resources to a mating given the probability ofsubsequently mating with another individual.

Sexual conflict is stronger when partners are promiscuous thanwhen they are monogamous. Assume that males and females mate twicein their lifetime. They can either mate with the same individualtwice or with two different individuals. Provide a simple-gametheoretical model of how a male and female should allocateresources to a mating given the probability of subsequently matingwith another individual.