Amy Johnson
| Phone | (207) 725-3026 |
| Title | James R. and Helen Lee Billingsley Professor of Marine Biology |
| Department | BIOLOGY |
| Work Location | 013 Hatch Science Library |
| ajohnson@bowdoin.edu |
6500 College Station
Brunswick, ME 04011 phone: (207) 725-3026
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EDUCATION: | B.A. Biology, University of California, Los Angeles, 1978 Ph.D. Zoology, University of California, Berkeley, 1986 |
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TEACHING AREA: | Introductory Biology, Biology of Marine Organisms, Biomechanics, Evolution of Marine Invertebrates |
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RESEARCH INTERESTS: | I am interested in the biomechanics and functional ecology of marine invertebrate animals and of intertidal algae and animals. Myself and my research students work on campus, at the Coastal Studies Center marine lab and at a variety of marine field sites on (1) biomechanics and ecology of growth in sea urchins and sea cucumbers, (2) biomechanics of persistence in rocky intertidal creatures (especially algae and snails), (3) mechanics of chewing with the crustacean gastric mill, and (4) fish swimming. |
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OTHER INTERESTS: | Kids, dogs, cats, music, reading, walking, light flecks on new spring leaves, thimble moon on night of first frost, full moon setting at the edge of an autumn morning mist |
RECENT PUBLICATIONS:
* indicates student coauthor
Johnson, A. S., Ellers, O., *Wright, M., *Selden, R., *Stranges, B. (2006). Is there an oxygen-limited lag phase in early growth in sea urchins, Strongylocentrotus droebachiensis? International Echinoderm Conference, University of New Hampshire, August, 2006.
Ellers, O., Johnson, A.S. (2006). Temperature determines size and time-to-size in urchins: calibration of size-temperature effects in marine ectotherms. International Echinoderm Conference, University of New Hampshire, August, 2006.
Johnson, A.S. Ellers, O. (2006). A new fluorochrome-based identification tag for sea urchins for use in a hatchery and lease-site-aquaculture. Northeast Aquaculture Conference and Exposition. Mystic, Connecticut. December, 2006.
Lake, B.*, Johnson, A.S., Mauck, R.A. (2006). Influence of orientation and flow speed on feeding behavior and metabolism of the barnacle Semibalanus balanoides. Integr. COmp. Biol. 46 (1): e219; doi:10.1093/icb/ic1056.
Johnson, A.S., Ellers, O., Butler, M.* (2006). Barbs of a feather bend (and twist) together. Integr. Comp. Biol. 46 (1):e70; doi: 10.1093 /icb /ic1056.
Butler, M*, Johnson, A.S. (2004). Are melanized feather barbs stronger?. J. Exp. Biol. 207: 285-293
Johnson, A.S., Ellers O., *Lemire, J., *Minor, M., *Leddy, H. (2002). Sutural loosening and skeletal flexibility during growth: determination of drop-like shapes in sea urchins. Proc. Roy. Soc. Lond. 269:215-220
*Pratt, M.P., Johnson, A.S. (2002). Strength, Drag, and Dislodgement of Two Competing Intertidal Algae from Two Wave Exposures and Four Seasons. J. Exp. Mar. Biol. Ecol. 272: 71-101.
Johnson, A.S. (2001). Drag, drafting, and mechanical interactions in canopies of the red alga Chondrus crispus. Biological Bulletin 201: 126-135.
*Leddy, H.A., Johnson, A.S. (2000). Mechanical specialization in serially repeated structures: material properties differentiate sea urchin podia. Biological Bulletin 198: 88-93.
Ellers. O., Johnson, A.S., Moberg, P. (1998). Sutural strengthening of urchin skeletons by collagenous sutural ligaments. Biological Bulletin 195: 136-144.
Johnson, A.S. (1997). Flow is genet and ramet blind: Consequences of individual, group and colony morphology on filter feeding and flow. Proceedings of the 8th International Coral Reef Symposium 2: 1093-1096.
Johnson, A.S., Ellers, O. (1996). Is growth in sea urchins analogous to molting? American Zoologist 36:57A.
*Leddy, H.A., Johnson, A.S. (1996). Walking versus breathing: Mechanical characteristics of sea urchin tube feet associated with differential function along an oral-aboral gradient. American Zoologist 36: 9A
*Pratt, M.C., Johnson, A.S. (1996). Seasonal changes in morphology and material properties influence the co-occurrence of two intertidal, co-dominant seaweeds, Chondrus crispus and Mastocarpus stellatus , in the Gulf of Maine. American Zoologist 36:59A
*Archie, E.A., Johnson, A.S. (1996). Resistance to dislodgement in a turbulent environment: Directional tenacity in two species of intertidal snails American Zoologist 36:5A
Johnson, A.S. and Koehl, M.A.R. (1994). Maintenance of environmental stress factor in different flow habitats: Thallus allometry and material properties of a giant kelp. Journal of Experimental Biology 195: 381-410.
| LINKS: | |
| Coastal Studies Center Organism Page |
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Send email to Dr. Amy Johnson: ajohnson@bowdoin.edu |