School of Forest Resources and Conservation
Donald C. Behringer, Jr.

Research Assistant Professor

B. S. Zoology, 1991

University of Florida

Ph. D. Ecological Sciences, 2003
Old Dominion University

    Dr. Behringer’s research is focused on near shore marine and estuarine environments where he studies the impact of anthropogenically-driven environmental changes on benthic populations and communities. The emergence and impact of disease on aquatic organisms is receiving increased attention and Dr. Behringer’s current research involves the dynamics of a lethal pathogen that infects Caribbean spiny lobsters and the effect of ecosystem change on disease epidemiology. 

This work is centered on PaV1, an irido-like virus that he and colleagues at Old Dominion University and the Virginia Institute of Marine Science discovered in 1999.  It is the first naturally-occurring virus found in any lobster. The goal is to determine how anthropogenically-driven changes in environmental conditions, coupled with ontogenetic-changes in host behavior and disease susceptibility, generate the pattern of infection prevalence and distribution observed in the Florida Keys. One remarkable early result was a discovery that healthy lobsters are able to detect and avoid diseased lobsters – potentially limiting transmission in the wild.  This is the first discovery of such a behavior and it stands to change our perceptions regarding the role of behavior in the transmission of disease in social animals.  In 2008, work will begin to determine if current fishery practices affect the distribution and prevalence of PaV1 and the role that PaV1 may have in the recent downturn in Florida fishery landings.

Lobsters are ubiquitous inhabitants of coral reefs, which are also under assault from human impacts and environmental changes.  Dr. Behringer and colleagues are using aerial surveys to determine vessel-use patterns and activities along the southeast Florida coral reef tract.  Initial results from these surveys will be used to establish reef research sites offshore of Miami-Dade, Broward, and Palm Beach Counties.  The concurrent aerial surveys and in-water research is aimed at determining if use patterns and activities correlate with observed reef impacts and how recovery rates relate to injury rates.  This type of information is critical in promoting informed management decisions targeted at conserving imperiled reef resources.  

Dr. Behringer is also interested in the influence of enhancement, restoration, and conservation efforts on populations and communities.  The use of artificial enhancement mechanisms to maximize animal abundances is widespread and while most investigators have studied the efficacy of the mechanism, the effect of habitat enhancement on the processes creating such patterns is greatly understudied. 

 
E-mail: behringer@ufl.edu
Phone: 352-392-9617 ext. 284
Curriculum Vitae - includes all publications

Selected Publications:

Behringer, D.C., Butler IV, M.J., and J.D. Shields. In press. Ecological and physiological effects of PaV1 Infection on the Caribbean Spiny Lobster (Panulirus argus Latreille). Journal of Experimental Marine Biology and Ecology.

Butler, M.J., Behringer, D.C., and J.D. Shields. In press. Transmission of Panulirus argus virus1 (PaV1) and its effect on the survival of juvenile Caribbean spiny lobster. Disease of Aquatic Organisms.

Behringer, D.C., Butler IV, M.J., and J.D. Shields. 2006. Ecology: Avoidance of disease in social lobsters. Nature 441: 421.

Behringer, D.C. and M.J. Butler IV. 2006. Stable isotope analysis of production and trophic relationships in a tropical marine hard-bottom community. Oecologia 148: 334-341.

Behringer, D.C. and M.J. Butler IV. 2006. Density-dependent population dynamics in juvenile Panulirus argus (Latrielle): the impact of artificial enhancement. Journal of Experimental Marine Biology and Ecology 334: 84-95.

 

Dr. Behringer and assistants search macroalgae in Florida Bay for juvenile lobsters.  Early benthic juvenile lobsters were placed out in the field as “sentinels” to investigate “hot spot” sources of PaV1 infection.
Caribbean spiny lobster on the coral reef.  A coral reef is typically the final habitat in a complex lobster lifecycle that also includes the open ocean and near shore nursery habitat such as Florida Bay.
Gross signs of infection with the PaV1 virus include lethargy, fouling of the carapace, and normally clear blood turning chalky white.


Dr. Behringer's Experimental Marine Ecology students try their hand at ecological methods in the field (Florida Keys and Chesapeake Bay shoreline).

Students learn how to design experiments, conduct field work, analyze results, and report findings.

Fisheries and Aquatic Sciences, 7922 NW 71st St., Gainesville, FL 32653  
UF PO: 110600  
Phone: 352/392-9617  Fax: 352/392-3672

Page created April 21, 2008

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