ODU BIOLOGY

The department has teaching and research interests in many aspects of Biology from the cellular and molecular level to organismal to global ecological and conservation issues

Friday, February 4, 2011

Dr Meredith Kintzing, PhD.



Congratulations to Dr Kintzing who triumphed over personal tragedies to graduate with her PhD in Ecological Sciences in Dec 2010. Meredith joined the PhD program in 2004 under the mentorship of Dr Mark Butler. Meredith's studies involved traveling up and down the east coast from her home here in VA to her main research site in the Florida Keys where she spent the summer, or entire semesters immersed in her "lab". In addition, she was able to fit in classes, trips to scientific meetings and other exotic research sites, as well as the occasional marathon or half marathon. Currently Meredith is a post-doc in the biogeochemistry lab of Chris Martens in the Marine Sciences Department at the University of North Carolina at Chapel Hill.

From Meredith:
Being a graduate student in marine ecology is challenging, exciting, and rewarding. As a graduate student at ODU I had the opportunity to dive the coral reefs of the Florida Keys and Belize while conducting research that addressed interesting scientific questions that also had applications to managing this resource. Like any graduate program it involved a lot of hard work, but on any given day I might see a sea turtle, manatee, or shark in addition to the invertebrates that were the focus of my research. When your “office” is the ocean every day is an adventure.

Research: Human activity has stressed the world’s oceans. Nowhere is this more evident than coral reefs, especially those of the Caribbean. Caribbean reefs began experiencing declines in coral cover in the early 1980s attributable to a number of factors including overfishing, pollution, disease, and loss of key herbivores. I am interested in coral reef communities particularly determining the causes and consequences of their decline. My research focuses on trophic interactions, or who eats whom, on the coral patch reefs of the Florida Keys. My dissertation focused on how the spotted spiny lobster altered patch reef communities. I found the spotted lobster has a broad diet that includes several important herbivorous, or seaweed eating, invertebrates. In addition to consuming herbivores, the spotted lobster also alters the behavior of herbivorous sea urchins causing them to consume less algae. This has important implications for coral reefs as algal overgrowth associate with the diseased induced die-off of this sea urchin is one of primary causes of reef decline in the Caribbean. By gaining a better understanding of how organisms interact on coral reefs we will be able to better preserve and protect them for future generations. 



Saturday, January 29, 2011

SCHEV Outstanding Faculty Award

Congratulations to Professor Mark Butler who this past week was recognized as one of the SCHEV outstanding faculty for 2011.  See the full ODU story here.  His hard work and dedication is appreciated as evidenced by this award and the numerous others he has had over the years. For more information about Dr Butler's research check out his web page.
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Brief Bio provided by Mark Butler:
Mark Butler is Professor and Eminent Scholar in the Department of Biological Sciences at Old Dominion University, where he teaches marine ecology and biostatistics and has been a faculty member since 1989.
Professor Butler received the Hirschfield Award for Faculty Excellence and the "Most Inspirational Faculty" Award from the ODU College of Sciences. His dedication to science education has attracted the attention of the National Science Foundation, which has appointed him to numerous review panels to select the recipients of various institutional science education grants, as well as graduate research fellowships for the nation's top doctoral students.  
An internationally known marine biologist, Professor Butler has published more than 100 scientific articles and book chapters, and has been awarded more than 50 grants totaling over $8 million, many being prestigious grants from the National Science Foundation.  He has two current NSF grants: one exploring the effects of fishing and climate change on disease in Virginia's blue crabs; the other uses Caribbean lobsters as a model system for understanding how pathogen dispersal in the sea influences disease dynamics. He also spearheads a community-based project to restore sponge-dominated hard-bottom habitat in the Florida Keys.
Among other professional service activities, Professor Butler has been an advisor to fishery management agencies in Florida, the Caribbean, Australia, and the Galapagos Islands and has trained coral reef managers in Mesoamerica.  In 2008, he co-authored a policy brief for the United Nations on improving coastal marine management and last year led a conservation assessment of lobsters worldwide. Here in Virginia, he has served on the Blue Crab Scientific Task Force and is a member of the Suffolk Wetlands Board.
"My students and I get wet and dirty when studying marine ecology and I wouldn't have it any other way", writes Professor Butler. "Few will become marine biologists. Yet, whatever careers they pursue, I want to help them gain a truer understanding of how knowledge is generated and hope they become more responsible stewards of our watery, blue planet."
Professor Butler received a B.A. at Wittenberg University, an M.S. at Ohio State University, a Ph.D. at Florida State University.

Friday, January 14, 2011

Fish Disease in the Chesapeake Bay

DAVID GAUTHIER, assistant professor of Biological Sciences recently received funding from NOAA (Chesapeake Bay Office) and Virginia Sea Grant, through Virginia Institute of Marine Science, for his study “Quantifying the interactive effects of hypoxia, temperature, and mycobacteriosis on striped bass (Morone saxatilis) ; their impact on the energetics and ecology of these fish."

Dr Gauthier is working as part of a collaborative team with faculty at VIMS (Richard Brill, Mary Fabrizio, Wolfgang Vogelbein, Dominique Lapointe) to study the synergistic effects of hypoxia, temperature, and mycobacteriosis on the physiology of striped bass.  Hypoxic "dead zones" occupying Chesapeake Bay through much of the summer are thought to be a potential stress factor leading to development of disease due to Mycobacterium spp. in Chesapeake Bay striped bass, and disease, in turn, may exacerbate physiological stress due to hypoxia or increased temperatures.  With this funding they will be studying the physiological responses of striped bass to increased temperature and decreased dissolved oxygen, and will be examining how disease status affects these responses.  Work will be conducted at the state-of-the-art Seawater Research Laboratory at VIMS.  

Tuesday, January 4, 2011

Tick expert gets recognized by insect society

The Governing Board of the Entomological Society of America in 2010 elected ten new Fellows of the Society. Among them, Daniel Sonenshine, Old Dominion University professor emeritus and eminent scholar of biological sciences.  The election as a Fellow to the society acknowledges Dan’s outstanding contributions to the study of ticks. The fellows were recognized at the ESA Annual Meeting in December 2010. Two years ago Dan was recognized by the American Society of Tropical Medicine and Hygiene with the Hoogstraal Medal for outstanding lifelong service in medical entomology.
Dan Sonenshine retired from the Biology departments teaching faculty in 2002, after 41 years of service to ODU. Since that time he has remained active in his research program.  After years of field work and physiological studies, he has moved down to the molecular level. Among his latest pursuits are studies of the innate immunity of ticks, the molecular biology of tick reproduction, and tick neuropeptides.  
Dr Sonenshine has published over 200 referred articles in various scientific journals, various monographs and book chapters. However, it is his two volume book set “The Biology of Ticks” that he is probably best known for; although published in 1992-93 it is still the bible for all aspects of tick biology including anatomy, ultrastructure, physiology and tick-borne diseases. He is currently working on an updated version with his close colleague Michael Roe from North Carolina State University; this is expected to be published in 2013.
When he ‘retired’ Dr Sonenshine wanted to make sure he had something to do, working in the lab 8hours a day was not enough….In 2010 under the guise of pseudonym Dan Ailey he branched out of just scientific writing into the realm of Sci-Fi writing when he published Extinction: The Ultimate Holocaust. The Plan to Exterminate Humanity.

Wednesday, December 15, 2010

Rift Valley Fever modeling

HOLLY GAFF, assistant professor in Biological Sciences has recently received funding from the Department of Homeland Security FAZD (Foreign Animal and Zoonotic Disease defense) Center through subgrants with Georgetown University and Texas A&M University (Texas Agrilife Research) for her studies on the modeling of Rift Valley Fever.
Rift Valley Fever is a viral disease spread by mosquitoes that primarily affects livestock but can be passed to humans, and which is potentially fatal. It is currently found across sub-Saharan Africa, with outbreaks reported in Egypt, Kenya, Saudi Arabia, Yemen and South Africa.  With the fact that diseases can be easily moved around the world in a short period of time, introduction to the USA, either intentionally or accidently, could pose a serious threat to both livestock and humans.
Dr Gaff proposes to enhance the modeling of the impact of climate on the spread of the disease.  Competent vectors of the virus already exist in the US so these would facilitate the spread of disease to both human and livestock populations. Models would involve components including climate (temperature and precipitation), livestock densities, and populations of the vectors capable of transmitting the virus.


Monday, December 13, 2010

Diversity in the fish market


KENT CARPENTER went on a "fishing expedition" in Malaysia as part of The Semporna Marine Ecological Expedition organized to document the biodiversity richness and coral reef health of the Semporna Priority Conservation Area (PCA), Malaysia. Dr Carpenter visited the fish market looking for, and finding a diversity of fish that were not observed during a week of diving. Check out the video: http://www.youtube.com/user/2010SMEE#p/u/1/lsOj3s7g_Lg

Friday, December 10, 2010

Long term ecological studies continue

FRANK DAY, professor and eminent scholar in the Department of Biological Sciences, recently received another year of funding for his project titled “Long-term drivers, state change and disturbance on the Virginia Coast Reserve: Long-term Ecological Research site” This project is funded through the University of Virginia as part of a larger National Science Foundation grant that is associated with NSF’s Long-Term Ecological Research (LTER) program.

Dr Day has been involved with this research program since the late 1980’s. His project monitors species composition, diversity, and plant cover annually at various sites along the dune chronosequence (a sequence of soils that changes gradually from one to the other with time) on Hog Island, a Virginia coastal barrier island. The effects of nitrogen fertilization on vegetation are also measured. The primary emphasis of the research is the effects of disturbance (frequent coastal storms) and changes in free surfaces (land, sea level, and ground water) on coastal dune ecosystems.

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