Selection Pressures - PowerPoint PPT Presentation

About This Presentation
Title:

Selection Pressures

Description:

Selection Pressures Directional Selection Stabilizing Selection Disruptive Selection Selection Pressures Directional Selection takes place when individuals at one ... – PowerPoint PPT presentation

Number of Views:59
Avg rating:3.0/5.0
Slides: 6
Provided by: msherzanP3
Category:

less

Transcript and Presenter's Notes

Title: Selection Pressures


1
Selection Pressures
  • Directional Selection
  • Stabilizing Selection
  • Disruptive Selection

2
Selection Pressures
  1. Directional Selection takes place when
    individuals at one end of the curve have higher
    fitness than individuals in the middle or at the
    other end

3
Selection Pressures
  1. Stabilizing Selection takes place when
    individuals near the center of the curve have
    higher fitness than individuals at either end of
    the curve

4
Selection Pressures
  • Disruptive Selection takes place when
    individuals at the upper and lower ends of the
    curve have higher fitness than individuals near
    the middle

5
So What is a Selection Pressure?
  • a pressure that drives the variation in a
    population.
Write a Comment
User Comments (0)
About PowerShow.com