Biology 484 – Ethology Chapter 1 – An Evolutionary Approach to Animal Behavior

Konrad Lorenz

Karl vonFrisch

Niko Tinbergen

Kay Holekamp – Researcher at Michigan State University Paul Sherman – Researcher at Cornell University

B.F. Skinner

1.1 The monogamous prairie vole

1.2 The brain of the prairie vole is a complex, highly organized machine

1.3 A gene that affects male pairing behavior in the prairie vole

Box 1.1 How are phylogenetic trees constructed and what do they mean?  Suggests which species are most closely related  Suggests which species are more closely related to a recent ancestor  Common features used in phylogenetic trees include:  Anatomy  Physiological Features  Behavior  Molecular Relatedness

1.4 The evolutionary relationships of the prairie vole and six of its relatives

1.5 The possible history behind monogamy in the prairie vole

1.7 Testing the hypothesis that monogamy in prairie voles is linked to a specific gene

1.8 Charles Darwin, shortly after returning from his around-the-world voyage on the Beagle

Charles Darwin’s study

1.9 A variable species

1.10 Natural selection

1.11 A band of Hanuman langur females and their offspring

1.12 Male langurs commit infanticide

1.14 Infanticide by a male lion

1.15 An evolved response to the risk of infanticide