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Found 8 resources for the concept: Speciation requires reproductive isolation

imageSpecies, speciation and the environment
Niles Eldredge gives a historical overview of scientists' thinking on the process of speciation, along with modern perspectives on this issue.
This article appears at ActionBioscience.org.

Audience: 9-12

Source: ActionBioscience.org

Resource type: Article

imageSpeciation: The basics
Figuring out what species are is not as easy as one might think. Find out how biologists define species and how new species evolve.
This article is located within Evolution 101.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Tutorial

imageAnolis Lizards
Students "take a trip" to the Greater Antilles to figure out how the Anolis lizards on the islands might have evolved.

Audience: 9-12

Source: Collins, Jennifer

Resource type: Lab activity

imageEvo in the news: Speciation in real time
We often think of speciation as a slow process—so slow that we can’t really observe it going on around us. This news brief from Febrary 2010 describes two examples which demonstrate that, at least occasionally, important steps toward speciation can be observed in less than 50 years.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageA Step in Speciation
Students compare different subspecies of a California salamander on a grid map of California to focus on patterns of their distribution, their likely evolutionary relationships, and probable sequence of formation from the ancestral salamander.

Audience: 9-12

Source: ENSI

Resource type: Lab activity

imageA closer look at a classic ring species: The work of Tom Devitt
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.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageParsimonious explanations for punctuated patterns
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.

Audience: 9-12

Source: Evolution: Education and Outreach

Resource type: Article

imageEspeciación en tiempo real
Generalmente, pensamos en la especiación como un proceso lento. Toda la evidencia disponible sostiene la idea de que diferentes especies evolucionaron desde ancestros comunes, y sin embargo, nuevas especies no aparecen a nuestro alrededor diariamente. Para muchos biólogos, esto implica que la especiación ocurre tan lentamente que es difícil observarla en escalas de tiempo humanas. Sin embargo, nuevas investigaciones sugieren que la especiación podría ser más fácil de observar de lo que pensamos.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

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