Trends Brian O’Meara EEB464 Fall 2015

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Presentation transcript:

Trends Brian O’Meara EEB464 Fall

Cope’s Rule Widespread tendency of many animal groups to grow towards larger sizes

What could explain a trend? How would you test it?

MCSHEA. MECHANISMS OF LARGE-SCALE EVOLUTIONARY TRENDS. Evolution (1994) vol. 48 (6) pp

Alroy. Cope's rule and the dynamics of body mass evolution in North American fossil mammals. Science (1998) vol. 280 (5364) pp

Alroy. Understanding the dynamics of trends within evolving lineages. Paleobiology (2000) vol. 26 (3) pp

Wang. Accounting for unequal variances in evolutionary trend mechanisms. Paleobiology (2005) vol. 31 (2) pp

Alroy. Understanding the dynamics of trends within evolving lineages. Paleobiology (2000) vol. 26 (3) pp

Laurin. The evolution of body size, Cope's rule and the origin of amniotes. Syst Biol (2004) vol. 53 (4) pp

Hunt and Roy. Climate change, body size evolution, and Cope's Rule in deep-sea ostracodes. Proceedings Of The National Academy Of Sciences Of The United States Of America (2006) vol. 103 (5) pp Time

Hunt and Roy. Climate change, body size evolution, and Cope's Rule in deep-sea ostracodes. Proceedings Of The National Academy Of Sciences Of The United States Of America (2006) vol. 103 (5) pp

Novack-Gottshall and Lanier. Scale-dependence of Cope's rule in body size evolution of Paleozoic brachiopods. Proceedings Of The National Academy Of Sciences Of The United States Of America (2008) vol. 105 (14) pp

O'Keefe and Carrano. Correlated trends in the evolution of the plesiosaur locomotor system. Paleobiology (2005) vol. 31 (4) pp