Lecture 5 posted - BIO 311D LECTURE 5 Macroevolution...

Info iconThis preview shows pages 1–26. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: BIO 311D LECTURE 5 Macroevolution (evolution of species) Speciation What defines a species? What are the criteria we should use? Morphological species concept Biological Species Concept Problems with the biological species concept: Circular overlap Reproductive isolation Summary of species definitions Types (or patterns) of evolution Types (or patterns) of speciation – Anagenesis – Cladogenesis (a) Anagenesis (b) Cladogenesis Modes of speciation Allopatric speciation Sympatric speciation Allopatric speciation Allopatric speciation A. harrisi A. leucurus Sympatric speciation Sympatry due to polyploidy Ring speciation (circular overlap) Biodiversity – importance and changes Adaptive radiations Cambrian radiation Dispersal Vacariance Extinction Ordovician Devonian Permian Triassic Cretaceous ? Permian ...
View Full Document

This note was uploaded on 02/28/2010 for the course BIO 49405 taught by Professor Chinnery during the Spring '10 term at University of Texas at Austin.

Page1 / 26

Lecture 5 posted - BIO 311D LECTURE 5 Macroevolution...

This preview shows document pages 1 - 26. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online