Bilogy week2 pt 2. Lecture 4 Flashcards
Polygamous
A MATING SYSTEM-One sex mate with multiple others-if the offspring need little parental support
A Form of Polygamous
*PolyGYNous
One male with multiple females
A Form of Polygamous
- PolyANDERous
One female with multiple males
A Form of Polygamous
*Promiscuous
Both sex’s mate with multiple others
A Form of Polygamous
- Monagamous
ONE male with ONE female-when an offspring needs sufficient parental care
Male Mating Strategies 1) 2) 3) 4)
1) Female defense
2) Resource defense
3) Self-Advertisement
4) Sneaking
Male Mating Strategies
*Female Defense
A male gets the female by defending a group of females
Male mating Strategies
*Resource Defense
A male defends territory that would be useful for the female-food, nest sight.
Male Mating strategies
- Self-Advertisement
Self advertisement is displaying the males self in an area with lots of females
Male Mating strategies
- Sneaking
Males that have little chance of mating sneak into court females to fertilize the eggs.
Female Mating Strategies
1)
2)
3)
1) Direct Benefits
2) Good genes
3) Male choice copying
Female Mating Strategies
- Direct benefits
Direct benefits is when the male provides resources like parental care or food
Female Mating Strategies
*Good Genes
Good genes is when a male is based on his quality such as disease resistance.
Female mating Strategies
*Male choice copying
Male choice copying is when the girl wants what the other girl wants
What helps the mate realize the other is not genetically fit?
Why not cheat?
Sexually-Selected characteristics are honest indicators of quality.
ex: The blue feet of the blue footed booby.