Found 5 resources for the concept:
Speciation is often the result of geographic isolation.
A closer look at a classic ring species: The work of Tom Devitt
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Research profile
Time: 40 minutes
Overview
The Ensatina salamander has been extensively investigated because it is a ring species — a species that demonstrates how geography and the gradual accumulation of genetic differences factor into the process of speciation. Biologist Tom Devitt continues the more than 50 years of Ensatina research by applying new genetic techniques and asking new questions about this classic evolutionary example.
Island biogeography and evolution: Solving a phylogenetic puzzle using molecular genetics
Grade Level(s):
- 9-12
- 13-16
Source:
- Filson, R.P.
Resource type:
- Lab activity
Time: Two full class periods
Overview
Students focus on the evolution of three species of lizards using real data sets — geographical and geological data, then morphology, and finally molecular data — to determine possible phylogenetic explanations.
Parsimonious explanations for punctuated patterns
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- Evolution: Education and Outreach
Resource type:
- Article
Time: 40 minutes
Overview
Punctuated equilibrium is sometimes erroneously cited as evidence that evolutionary biology still hasn't figured out how evolution works. In fact nothing could be further from the truth. Punctuated equilibrium builds on (not tears down!) established evolutionary theory. Find out how the process works.
This article appears at SpringerLink.
Radiations and extinctions: Biodiversity through the ages
Grade Level(s):
- 13-16
- General
Source:
- Zimmer, Carl
Resource type:
- Article
Time: 1.5 hours
Overview
This excerpted chapter from Carl Zimmer's book, The Tangled Bank, describes the evolutionary processes responsible for large scale patterns in the diversity of life through time. Reprinted with the permission of Roberts and Company Publishers, Inc.
This resource is available from the National Center for Science Education.
Speciation: An illustrated introduction
Grade Level(s):
- 6-8
- 9-12
- 13-16
- General
Source:
- TED-ed
Resource type:
- Video
Time: 15 minutes
Overview
This video illustrates the speciation process in birds to help explain the basis of earth's biodiversity. Registration may be required to view the discussion and multiple choice questions that accompany the video.