My research explores
the effects of climate and climate change on the physiology and
ecology of marine organisms. Specifically,
I use thermal engineering techniques, including a combination of
field work, remote sensing and mathematical modeling, to explore
the ways in which the environment determines the body temperatures
of coastal marine animals such as mussels and seastars. I
use similar techniques to examine the impacts of temperature and
water flow on corals. A major goal of this approach (funded
by NASA, NOAA and NSF) is to predict where the effects of climate
change are likely to be the most severe, a method of ecological
triage. To date my work has centered primarily on tropical
coral reefs in Florida, the Caribbean and Central America (Belize),
and on temperate rocky intertidal systems in the United States
and Europe, but recent work funded by the NOAA Ecofore Program
has expanded to include salt marsh ecosystems throughout the U.S.
Our work has shown some surprising results,
and has suggested that our expectations of where to look for
the effects of climate change in nature can be more complex than
previously anticipated. For
example, our research has shown that along the Pacific coast of
the U.S., animal temperatures at sites in Oregon and Washington
can be as hot or hotter than sites much farther to the south in
California, due to the complex interaction of climate and tides
in the region. As a result, we should not necessarily expect
to see mortality at the southern ends of species range boundaries,
but also at these hot spots. This complexity suggests
that unless we know where and when to look for impacts of climate
change, many early impacts could go unnoticed.
My students and I also work with local
teachers to develop educational materials relevant to national
science standards, and to bring the excitement of science to
the classroom. We regularly
include teachers as part of our research program, and I am actively
involved in the South Carolina chapter of the National Marine Educators
Association. |
| Selected Publications: |
| Helmuth, B., J.G. Kingsolver and E. Carrington. 2005.
Biophysics, physiological ecology, and climate change: Does mechanism
matter? Ann. Rev. Physiol., 67: 177-201. |
| Sebens, K.P., B. Helmuth, E. Carrington and B. Agius. 2003.
Effects of water flow on growth and energetics of the scleractinian
coral Agaricia tenuifolia, in Belize. Coral Reefs 22(1): 35-47. |
| Helmuth, B., C.D.G. Harley, P. Halpin, M. ODonnell, G.E. Hofmann
and C. Blanchette. 2002. Climate change and latitudinal patterns
of intertidal thermal stress. Science 298:1015-1017. |
| Helmuth B. 2002. How do we measure the environment? Linking
intertidal thermal physiology and ecology through biophysics. Int.
Comp. Biol. 42(4): 837-845. |
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