Sonke Johnsen

Professor of Biology

Office: 
301 Bio Sci Bldg, Durham, NC 27708
Campus Box: 
Duke Box 90338, Durham, NC 27708-0338
Phone: 
(919) 660-7321

Education

  • Ph.D., University of North Carolina - Chapel Hill 1996

  • B.A., Swarthmore College 1988

Caves, Eleanor M., Catherine Chen, and Sönke Johnsen. “The cleaner shrimp Lysmata amboinensis adjusts its behaviour towards predatory versus non-predatory clients.Biology Letters 15, no. 9 (September 18, 2019): 20190534. https://doi.org/10.1098/rsbl.2019.0534. Full Text

Schweikert, Lorian E., Eleanor M. Caves, Sarah E. Solie, Tracey T. Sutton, and Sönke Johnsen. “Variation in rod spectral sensitivity of fishes is best predicted by habitat and depth.Journal of Fish Biology 95, no. 1 (July 2019): 179–85. https://doi.org/10.1111/jfb.13859. Full Text

Zipple, Matthew N., Eleanor M. Caves, Patrick A. Green, Susan Peters, Sönke Johnsen, and Stephen Nowicki. “Categorical colour perception occurs in both signalling and non-signalling colour ranges in a songbird.Proceedings. Biological Sciences 286, no. 1903 (May 29, 2019): 20190524. https://doi.org/10.1098/rspb.2019.0524. Full Text

Marshall, N Justin, Samuel B. Powell, Thomas W. Cronin, Roy L. Caldwell, Sonke Johnsen, Viktor Gruev, T-H Short Chiou, Nicholas W. Roberts, and Martin J. How. “Polarisation signals: a new currency for communication.The Journal of Experimental Biology 222, no. Pt 3 (February 7, 2019). https://doi.org/10.1242/jeb.134213. Full Text

Ritschard, Elena A., Robert R. Fitak, Oleg Simakov, and Sönke Johnsen. “Genomic signatures of G-protein-coupled receptor expansions reveal functional transitions in the evolution of cephalopod signal transduction.Proceedings. Biological Sciences 286, no. 1897 (February 2019): 20182929. https://doi.org/10.1098/rspb.2018.2929. Full Text

Foster, James J., John D. Kirwan, Basil El Jundi, Jochen Smolka, Lana Khaldy, Emily Baird, Marcus J. Byrne, Dan-Eric Nilsson, Sönke Johnsen, and Marie Dacke. “Orienting to polarized light at night - matching lunar skylight to performance in a nocturnal beetle.The Journal of Experimental Biology 222, no. Pt 2 (January 28, 2019). https://doi.org/10.1242/jeb.188532. Full Text

Schweikert, Lorian E., Robert R. Fitak, Eleanor M. Caves, Tracey T. Sutton, and Sönke Johnsen. “Spectral sensitivity in ray-finned fishes: diversity, ecology and shared descent.The Journal of Experimental Biology 221, no. Pt 23 (November 27, 2018). https://doi.org/10.1242/jeb.189761. Full Text

Caves, Eleanor M., Patrick A. Green, Matthew N. Zipple, Susan Peters, Sönke Johnsen, and Stephen Nowicki. “Categorical perception of colour signals in a songbird.Nature 560, no. 7718 (August 2018): 365–67. https://doi.org/10.1038/s41586-018-0377-7. Full Text

Pages

Caves, E. M., T. M. Frank, and S. Johnsen. “Colorblind colorful animals: Spectral sensitivity, temporal resolution, and spatial resolution in three species of cleaner shrimp.” In Integrative and Comparative Biology, 55:E27–E27. OXFORD UNIV PRESS INC, 2015.

Palmer, G., and S. Johnsen. “By the light of the silvery moon: The effect of lunar phase on the color of twilight and its implications for animal behavior.” In Integrative and Comparative Biology, 55:E138–E138. OXFORD UNIV PRESS INC, 2015.

Bedore, C. N., S. M. Kajiura, and S. J. Johnsen. “Bioelectric crypsis in cephalopods reduces detection by shark predators.” In Integrative and Comparative Biology, 54:E15–E15. OXFORD UNIV PRESS INC, 2014.

Bagge, L. E., W. M. Kier, and S. Johnsen. “Clearly camouflaged: muscle architecture in transparent shrimp.” In Integrative and Comparative Biology, 54:E9–E9. OXFORD UNIV PRESS INC, 2014.

Akre, K. L., and S. Johnsen. “Proportional psychophysics and the evolution of behavior: The broad influence of Weber's law.” In Integrative and Comparative Biology, 54:E4–E4. OXFORD UNIV PRESS INC, 2014.

Johnsen, S., E. Sawicka, R. Reynolds, and D. Stramski. “Through the looking glass: The structure of the oceanic light field and its implications for mirror-based camouflage.” In Integrative and Comparative Biology, 54:E102–E102. OXFORD UNIV PRESS INC, 2014.

Sweeney, A. M., S. Johnsen, Y. Gagnon, D. E. Morse, and D. Stramski. “Jurassic marine photonics: Squid dynamic iridescence and predation by large extinct marine reptiles.” In Integrative and Comparative Biology, 53:E210–E210. OXFORD UNIV PRESS INC, 2013.

Brandley, N. C., M. G. Johnson, and S. Johnsen. “Reduction of an aposematic signal: the role of microhabitat in North American black widows (Latrodectus).” In Integrative and Comparative Biology, 53:E22–E22. OXFORD UNIV PRESS INC, 2013.

Gagnon, Y. L., and S. Johnsen. “Visual acuity in deep-sea fish and mollusks.” In Integrative and Comparative Biology, 53:E73–E73. OXFORD UNIV PRESS INC, 2013.

Johnsen, S., D. -. E. Nilsson, and E. J. Warrant. “Why do giant squid have giant eyes?” In Integrative and Comparative Biology, 53:E104–E104. OXFORD UNIV PRESS INC, 2013.

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Selected Grants

Mathematical Model of the Visual Abilities of Sea Turtles and Pelagic Fishes awarded by National Oceanic and Atmospheric Administration (Principal Investigator). 2003

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