EvolutionMechanisms160-page5

EvolutionMechanisms160-page5 - Sexual(or Mate Selection –...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Evolutionary Mechanisms - 5 4. Non-Random Mating and Mate Selection For the Hardy-Weinberg genetic equilibrium to work, each gamete produced by any male would have an equal chance of combining with any gamete made by any female of that species. This occurs very rarely in populations. Differential reproduction is a significant part of the Darwin-Wallace theory, and mate selection is an important part of natural selection. There are hundreds of examples of mate selection strategies, some of which will be discussed later, as well as species that use other means of non- random mating, such as those animals which are harem forming.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Sexual (or Mate) Selection – A special case of Selection Sexual selection involves any trait (adaptation) that gives an individual a preferential advantage in mating. Such sexual selection is very important to non-random mating. Sexual dimorphism, in which genders differ in morphology is common. Usually the male has a pattern that is used for display. Male Patterns for Display Mating behaviors, such as the competition for mates among harem animals, and the elaborate courtship displays and mate choice are well-known and popular topics for nature programs....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern