Found 5 resources for the concept:
The number of offspring that survive to reproduce successfully is limited by environmental factors.
Evo in the News: Evolutionary history in a tiny package
Grade Level(s):
- 9-12
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 20 minutes
Overview
This news brief, from March 2012, describes the discovery four new species — all miniature chameleons — and explores the concept of island dwarfism.
Evolution of human skin color
Grade Level(s):
- 9-12
- 13-16
Source:
- Smithsonian National Museum of Natural History
Resource type:
- Classroom activity
Time: Seven to ten 50 minute class periods
Overview
Students examine evidence for the relationship between UV and melanin in other animals; investigate the genetic basis for constitutive skin color humans; learn to test for natural selection in mouse fur color; investigate how interactions between UV and skin color in humans can affect fitness; and explore data on migrations and gene frequency to show convergent evolution of skin color.
Mouse fur color
Grade Level(s):
- 13-16
Source:
- Evo-Ed
Resource type:
- Case study
Time: One to two class periods
Overview
This case study in the form of a set of PowerPoint slides examines the evolution of light fur in beach mice from the molecular level up to the population genetics level.
Problem-based discussion: Natural selection in Darwin’s finches
Grade Level(s):
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
Time: 5-20 minutes
Overview
This set of two PowerPoint slides featuring questions for problem-based discussion (i.e., open-ended questions that engage students with each other and with course material) can be easily incorporated into lectures on natural selection.
Stabilization of the fig-pollinator mutualism
Grade Level(s):
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
- Annotated journal article
Time: 1 hour
Overview
Students read a 2008 paper on the role of parasites in stabilizing the fig-pollinator mutualism alongside an interactive guide that explains each section of the paper and draws the reader's attention to important points in the article.