Trophic Dynamics; Terrestrial-Aquatic Comparative Ecology;
Anthropogenic Effects on Marine Communities...
My research interests are centered
around the controls of the magnitude and trophic fate of
primary production in ecosystems. Elucidating what
controls the amount and quality of food produced in
ecosystems, as well as the routes followed by that food
(consumption by herbivores, decomposition, export out of
the community, and storage as living or detrital mass) is
essential in understanding a number of important
ecological roles. These roles include the system's
capacity to support secondary biomass within (consumption
in the system) or off (through export) the system, carbon
and nutrient accumulation or release (sink vs. source),
and nutrient links with neighboring systems (i.e. the
system's dependence on imported nutrients).
Our field and experimental work focuses on coastal marine
communities. These include phytoplanktonic communities,
sediment flats (mostly inhabited by benthic microalgae),
macroalgal beds, seagrass meadows, and marshes. But we
also like to compare our and other marine
communities with freshwater and terrestrial communities
through extensive literature compilations. We thus work at
different scales of integration: across marine
communities, where our field and experimental work is
centered; and across aquatic and terrestrial communities,
where, using published data, we intend to identify trends
in how carbon and nutrients cycle.
And, finally, because we all face a serious environmental
crisis and need to contribute towards finding sustainable
solutions, I am also interested in ascertaining how
current anthropogenic perturbations, such as coastal
eutrophication and increasing UV irradiance, may alter
carbon and nutrient budgets in coastal ecosystems. Such
studies are needed in our quest towards an understanding
of how increasing human domination of coastal ecosystems
can alter local and global elemental budgets, and in
elaborating effective environmental policies.
Duarte, C. M., J. Cebrian and N.
Marbá. 1992. Global change in the marine environment: the
life-history of long-term monitoring programmes in Europe.
Nature 356: 190.
Cebrian, J. and C. M. Duarte.1994. The dependence
of herbivory on growth rate in natural plant communities.
Funct. Ecol. 8: 518-525
Cebrian, J. and C. M. Duarte. 1995. Plant
growth-rate dependence of detrital carbon storage in
ecosystems. Science 268: 1606-1608.
Cebrian, J., C. M. Duarte, N. Marbá, S. EnrÌquez,
M. Gallegos and B. Olesen. 1996. Herbivory on Posidonia
oceanica (L.) Delile: magnitude and variability in the
Spanish Mediterranean. Mar. Ecol. Prog. Ser. 130:147-155.
Cebrian, J., C. M. Duarte, N. Marbá and S.
1997. The magnitude and fate of production of four
co-occurring Western Mediterranean seagrass species. Mar.
Ecol. Prog. Ser. 155:29-44
Cebrian, J., M. Williams, J. MacClelland and I.
Valiela. 1998. The dependence of heterotrophy and carbon
accumulation on autotrophic nutrient concentration in
ecosystems. Ecology Letters 1:165-170.
Cebrian, J. and I. Valiela. 1999. Seasonal patterns
in phytoplankton biomass in coastal ecosystems. J.
Plankton Res. 21:429-444
Cebrian J. 1999. Patterns in
the fate of production in plant communities. Am.
Hauxwell, J., J. Cebrian, C. Furlong and I. Valiela.
2001. Macroalgal canopies contribute to eelgrass (Zostera
marina) decline in temperate estuarine ecosystems.
Cebrian, J. (2002). Variability and control of carbon
consumption, export, and accumulation in marine
communities. Limnol. Oceanogr. 47:11-22.
J., J. Cebrian and I. Valiela. 2003. Eelgrass Zostera marina loss in
temperate estuaries: relationship to land-derived nitrogen
loads and effect of light limitation imposed by algae.
Mar. Ecol. Prog. Ser. 247:59-73
Lartigue, J., A.
Neill, B. L. Hayden, J. Pulfer and J. Cebrian.
2003. The impact of salinity fluctuations on net oxygen
production and inorganic nitrogen uptake by Ulva
lactuca (Chlorophyceae). Aquat. Bot. 75: 339-350.
J., F. Fontanella, J. Cebrian and S. Arbaczauskas.
2003. Evidence that ultraviolet radiation may depress
short-term photosynthetic rates of intertidal Ulva lactuca and consumption by a generalist feeder (Clibanarius
vittatus). Gulf of Mexico Science 21:71-78.
Cole, M. L., I.
Valiela, K. D. Kroeger, B. Fry, G. L. Tomasky, J. Cebrian, C.
Wigand, R. A. McKinney, S. P. Grady and M. E. Carvalho-Silva.
2004. Assessment of a d15N
isotopic method to indicate anthropogenic eutrophication
in aquatic ecosystems. J. Env. Quality 33:124-132.
J. and J. Lartigue.
2004. Patterns of herbivory and decomposition in aquatic
and terrestrial ecosystems. Ecol. Mono.
J. 2004. Role of
first-order consumers in ecosystem carbon flow. Ecology
S., N. Marbà, J. Cebrian and C. M. Duarte. 2004. Annual variation in leaf
photosynthesis and leaf nutrient content of four
Mediterranean seagrasses. Botanica Marina 47:295-306.
Grazing on benthic primary producers. Pp. 153-185, In: S. L. Lielsen, G. T. Banta & M. F. Pederson (Eds.),
Estuarine Nutrient Cycling: The Influence of Primary
Producers. Kluwer Academic Publishers, Dordrecht,
M. A., J. Cebrian, K.
Dunton and T. Mutchler. 2006. Carbon flux in seagrass
159-162, In: Larkum, A.W.D., R. j. Orth and
C. M. Duarte (Eds). Seagrasses:
Biology, Ecology and Conservation. Springer, New York.
J., J. Cebrian and I. Valiela. 2006. Light dependence of Zostera marina
annual growth dynamics in estuaries subject to different
degrees of eutrophication. Aquatic Botany 84:17-25.
A. L., J. Cebrian and A. A. Corcoran. 2006. Effects of nutrient enrichment
and shading on sediment primary production and metabolism
in eutrophic estuaries. Mar. Ecol. Prog. Ser.
National Science Foundation/Mississippi-Alabama Sea Grant Consortium/
Alabama Center for Estuarine Studies - Examining
the effects of Hurricane Ivan in Coastal Alabama and
Northwestern Florida: a positive impact on shallow coastal
Fundacion del Banco Bilbao Vizcaya Argentaria, Bank of Bilbao-Vizcaya-
Argentaria Foundation - Seagrass
conservation: causes for seagrass decline and effects on
Coastal Zone Management Agency - Effects of oyster restoration on the quality of Alabama
coastal waters: towards an accurate evaluation of the role
of oysters as water cleaning agents.
Mississippi-Alabama Sea Grant Consortium/National Oceanic and
Administration - Evaluating the role of restored black needlerush marsh
(Juncus roemerianus) as a buffer of anthropogenic
eutrophication of coastal systems: an isotope enrichment
Alabama Center for Estuarine Studies - Impacts of hurricanes on the natural and restored
recovery of Juncus roemerianus in Alabama's critical salt
Alabama Center for Estuarine Studies - Metal accumulation in aquatic primary producers:
ecological consequences and potential application to early
detection of metal pollution.
Alabama Center for Estuarine Studies - Diversity and abundance of fungal decomposers on
seagrass beds of the north central Gulf of Mexico. Co-PI
with Juan Mata.
Tammy Wells, Ph.D.
Kate Sheehan, M.S.