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Biogeographic Implications of Changing Oxygen Levels through Time

  • Peter Ward (a1)


Changing oxygen values in the past would have changed the potential for gene flow across higher elevations in terrestrial settings. In this brief review I discuss new work showing that intervals of low oxygen (essentially the late Permian through Middle Jurassic) should have caused extreme endemism among terrestrial animals and perhaps plants.



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Beerling, D. J., and Berner, R. A. 2000. Impact of a Permo-Carboniferous high 02 event on the terrestrial carbon cycle. Proceedings of the National Academy of Sciences, 97:12,428–12,432.
Beerling, D.J., Lake, J. A., Berner, R. A., Hickey, L. J., Taylor, D. W., and Royer, D. L. 2002. Carbon isotope evidence implying high O2/CO2 ratios in the Permo-Carboniferous atmosphere. Geochimica et Cosmochimica Acta, 66:37573767.
Berner, R. A. 1987. Models for carbon and sulfur cycles and atmospheric oxygen: Application to Paleozoic geologic history. American Journal of Science, 287:177190.
Berner, R. A. 1999. A new look at the long-term carbon cycle. GSA Today, 9(11):16.
Berner, R. A. 2001. Modeling atmospheric 02 over Phanerozoic time. Geochimica et Cosmochimica Acta, 65:685694.
Berner, R. A. 2002. Examination of hypotheses for the Permo-Triassic boundary extinction by carbon cycle modeling. Proceedings of the National Academy of Sciences, 99:41724177.
Berner, R. A. 2004. The Phanerozoic Carbon Cycle. Oxford University Press. Oxford. 150 p.
Berner, R. A., and Canfield, D. E. 1989. A new model of atmospheric oxygen over Phanerozoic time. American Journal of Science, 289:333361.
Berner, R. A., and Kothavala, Z. 2001. GEOCARB III: A revised model of atmospheric CO2 over Phanerozoic time. American Journal of Science, 301:182204.
Gilbert, D. L. 1996. Evolutionary aspects of atmospheric oxygen and organisms. In Fregly, M. J. and Blatteis, C. M., (eds.), Environmental Physiology, Vol. 2. Oxford University Press. New York. p. 10591094.
Graham, J.B., Aguilar, N., Dudley, R., and Gans, C. 1997. The late Paleozoic atmosphere and the ecological and evolutionary physiology of tetrapods. In Sumida, S. S. and Martin, K. L. M., (eds.), Amniote Origins: Completing the Transition to Land. Academic Press. New York. p. 141167.
Huey, R. B., and Ward, P. D. 2005. Hypoxia, global warming, and terrestrial late Permian extinctions. Science, 308(5720):398401.
Lasaga, A. C., and Ohmoto, H. 2002. The oxygen geochemical cycle: Dynamics and stability. Geochimica et Cosmochimica Acta, 66:361381.
Sidor, C., O'Keefe, Damian I., Steyer, S., Smith, R., Larsson, H., Sereno, P., Ide, O., and Maga, A. 2005. Permian tetrapods from the Sahara show climate-controlled endemism in Pangaea. Nature, 434:886887.
Ward, P. in press. A New History of Life. Joseph Henry Press. Washington, D.C.
Ward, P.D., Botha, J., Buick, R., De Kock, M. O., Erwin, D. H., Garrison, G., Kirschvink, J., and Smith, R. M. H. 2004. Abrupt and gradual extinction among late Permian land vertebrates in the Karoo Basin, South Africa. Science, 307:709714

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Biogeographic Implications of Changing Oxygen Levels through Time

  • Peter Ward (a1)


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