Biology 152 Lecture 1 Section 1 Lessons Help Instructor Resources About

Evolution > Species & Speciation > Topic 2: Patterns of Speciation

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A species is typically made up of many different populations, and each population is evolving through processes like natural selection. Sometimes, a population can evolve and become so distinct from other populations of its species, that it becomes a new species.

The conditions that promote the evolution of new species fall into several patterns, like geographic separation. If you need a quick review of some of the patterns of speciation, click here.

Birds of the World, UW-Madison Zoology Museum, photo by Dr. Tim Moermond

What you'll learn in this topic

  • how to see allopatry and sympatry in a phylogentic tree
  • how important gene flow is in the speciation process.

Your task is to investigate the evolution of species in a group of tropical angiosperms called Fuchsia.

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