Center for Bottomland Hardwoods Research (CBHR)

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Congratulations to CBHR's own Dr. Alphus D. Wilson (Dan) who recently received notification from the international journal Sensors (Basel, Switzerland) that his 2009 review article Applications and Advances in Electronic-Nose Technologies published with Italian cooperator and coauthor Dr. Manuela Baietto was awarded 1st prize of "Sensors Best Paper Award 2013". This international review article summarizes research and applications of electronic aroma detection (EAD) technologies, primarily electronic-nose technologies, that have been developed and utilized within many industrial sectors (worldwide) over the past 30 years.

Congratulations to CBHR's own Dr. Mel Warren for being part of the team of co-authors receiving the U.S. Environmental Protection Agency 2011 Scientific and Technological Achievement Award Level III for “development of a novel indicator of ecosystem function: microbial acquisition of carbon, nitrogen, and phosphorous.” Their paper, Microbial enzyme activity, nutrient uptake and nutrient limitation in forested streams , was part of a trio of articles on which the award was based.

We welcome Dr. Jiaen Zhang, a visiting scholar from the South China Agricultural University, Guangzhou, China, who will be working this next year with host Dr. Ying Ouyang of our Starkville, MS staff and Dr. Prem Parajuli of the Mississippi State University Agricultural and Biological Engineering Department. Dr. Zhang's study areas include agricultural ecology, soil ecology and ecology of invasive plants and animals, green house gases emission in wetlands and global changes, ecological effects of acid rain, as well as ecosystem services and other related global enviromental issues.

CBHR's .Dr. Emile Gardiner has been appointed to succeed Dr. John Stanturf as the U.S. National Representative to the International Poplar Commission, a technical statutory body of the Food and Agriculture Organization of the United States dedicated to the conservation and management of the Salicaceae family of trees, which includes poplars and willows.


What mussel shell "rings" are telling us

A mussel shell

Freshwater mussels are among the longest-lived animals on Earth (up to nearly 200 years). As they grow, mussels form annual rings in their shells -- much like tree rings -- that can be used to determine an individual's age. Dr. Wendell Haag’s research has refined and extended techniques for studying these rings, and he is investigating the many other things they can tell us about mussel ecology and aquatic ecosystems in general. One of the first surprises was that lifespan varies greatly among species. Some are indeed long-lived (>50 years), but others may live only 4-5 years suggesting that mussels use a broad range of life history strategies. Second, growth varies considerably and predictably according to hydrologic and climatic factors. Third, even slight disturbances cause mussels to form distinctive rings that can be distinguished from normal, annual rings. Annual patterns of growth and occurrence of disturbance rings potentially provide a valuable record of changing habitat conditions over time. Along with collaborators, Haag has published five papers on this research to date, and is currently analyzing large scale growth patterns including an effort to build continuous growth histories stretching back >100 years.

Learn more about aging mussel shells based on their rings

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Recent Publications

Year Title Authors
2014 Biodiversity on the brink: an assessment of conservation strategies for North American freshwater mussels Haag, Wendell R.; Williams, James D.
2014 Crayfish use of trash versus natural cover in incised, sand-bed streams Adams, Susan B.
2014 Managing forest water quantity and quality under climate change Marion, Daniel A.; Sun, Ge; Caldwell, Peter V.; Miniat, Chelcy F.; Ouyang, Ying; Amatya, Devendra M.; Clinton, Barton D.; Conrads, Paul A.; Gull Laird, Shelby; Dai, Zhaohua; Clingenpeel, J. Alan; Liu, Yonqiang; Roehl, Edwin A.; Moore Myers, Jennifer A.; Trettin, Carl

More Publications

Fact Sheet

A dynamic data driven application system for real-time monitoring of surface water TP in a Mississippi Delta Stream

A dynamic data driven application system for real-time monitoring of surface water TP in a Mississippi Delta Stream

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A Comparison of At-A-Station Hydraulic Geometry for Step-Pool Channels

A Comparison of At-A-Station Hydraulic Geometry for Step-Pool Channels

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Stand Quality Management of Southern Hardwoods

Stand Quality Management of Southern Hardwoods

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Photo Album

Logging Damage and Epicormic Branching

Logging Damage and Epicormic Branching

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DNA Barcodes (CO1) of Western Hemisphere Siricidae

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Center for Bottomland Hardwoods Research

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Our unit headquarters:
Southern Hardwoods Lab
432 Stoneville Road
Stoneville, MS 38776
662-686-3152 Ph
662-686-3195 Fax