Jim Johnson


Jim Johnson received his B.S. and M.S. in Chemistry from the Florida State University and holds a M.E. in Engineering from the University of Florida. Jim's thesis work centered on Photosystem II under the direction of Dr. P. H. Homann. Jim has recently joined our group to initiate and analyze next-generation sequencing projects (NGS) in an effot to further our understanding of avian carotenoid ornamentation. Jim has also introduced us to the biochemical mechanisms of carotenoid pigmenation.


Johnson, J. D. 2009. Do carotenoids serve as transmembrane radical channels?  Free Radical

        Biology and Medicine 47: 321-323
Hill, G. E. and J. D. Johnson. 2012. The Vitamin A-Redox Hypothesis: A Biochemical Basis for
        Honest Signaling via Carotenoid Pigmentation. American Naturalist 180(5):E127-50
Johnson, J. D. and G. E. Hill. 2013. Carotenoid ornamentation linked to the inner mitochondria
        membrane potential?  A hypothesis for the maintenance of signal honesty.  Biochimie 95:
Hill, G. E. and Johnson, J. D. 2013. The mitonuclear compatibility hypothesis of sexual selection.
        Proceedings of the Royal Society of London, B 280 1768

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Dr. Geoff Hill
Professor &
Curator of Birds
Dept. Biological Sciences
Auburn University

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