Nyman, S. patens, and S. lancifolia


Wetland Wildlife Ecology

School of Renewable Natural Resources

Louisiana State University Agricultural Center
Louisiana State University
Baton Rouge, LA 70803

phone: (225) 578-4220

email: or

Purposes of this page are to attract students to courses that I teach, to attract graduate students to my lab, and to communicate research results to peers. From this page you can learn what I’m teaching, what my research interests are, what it’s like to be a graduate student in my lab, and download research publications.

Some Background: I was hired to study wetland wildlife ecology. I’m happy to work in Louisiana where wetlands are larger, more abundant, and managed/restored (not only protected) more than elsewhere. You can see my CV for details, but briefly… I worked for Bob Chabreck and earned a M.S. with a major in Wildlife from this department in 1989. I then worked for Ron D. DeLaune at LSU’s Wetland Biogeochemistry Institute from 1989 to 1994, and earned a Ph.D. in 1993 with a major in Oceanography and Coastal Sciences under the direction of William H. Patrick, Jr. In 1994, I declined a tenure-track position way up north and took a completely self-funded research position in the Biology Department at the University of Louisiana at Lafayette. In 2001, I returned to LSU as an Assistant Professor with a research/teaching split of 60/40 (the Louisiana State University Agricultural Center provides 60% of the salary whereas Louisiana State University provides 40% of the salary). In 2006, I was tenured and promoted to Associate Professor; in 2012 I was promoted to Professor.

Research Overview: My most cited papers address the response of coastal marshes to sea-level rise or petroleum pollution; my more recent papers address waterbirds, Spartina patens leaf tissue chemistry (we're basing a new wetland restoration planning technique on an old technique farmers use to plan fertilizer application), or denitrification.

Five Most Recent Publications:

  • Rietl, A.J., J.A. Nyman, C.W. Lindau, and C.R. Jackson. In press. Gulf ribbed mussels (Geukensia granosissima) increase methane emissions from a coastal Spartina alterniflora marsh. Estuaries and Coasts.
  • Tobias, V.D., and J.A. Nyman. In press. Leaf tissue indicators of flooding stress in the above- and below-ground biomass of Spartina patens. Journal of Coastal Research.
  • Rietl, A.J., J.A. Nyman, C.W. Lindau, and C.R. Jackson. 2017. Wetland methane emissions altered by vegetation disturbance: an interaction between stem clipping and nutrient enrichment. Aquatic Botany 136:205-211.
  • Nyman, J.A. and C.W. Lindau. 2016. Nutrient availability and flooding stress interact to affect growth and mercury concentration in Taxodium distichum (L.) Rich. seedlings. Environmental and Experimental Botany 125:77-86. DOI 10.1016/j.envexpbot.2016.02.004
  • Rietl, A.J., M.E. Overlander, J.A. Nyman, and C.R. Jackson. 2015. Microbial community composition and extracellular enzyme activities associated with Juncus romerianus and Spartina alterniflora vegetated sediments in Louisiana saltmarshes. Microbial Ecology. 71:290-303. DOI 10.1007/s00248-015-0651-2

Five Most Cited Publications:

  • Nyman, J.A., R.J. Walters, R.D. DeLaune, and W.H. Patrick, Jr. 2006. Marsh vertical accretion via vegetative growth. Estuarine Coastal and Shelf Science 69:370-380. DOI: 10.1016/j.ecss.2006.05.041
  • Pezeshki, S.R., M.W. Hester, Q. Lin, and J.A. Nyman. 2000. The effects of oil spill and clean-up on dominant US Gulf Coast marsh macrophytes: a review. Environmental Pollution 108:129-139.
  • DeLaune, R.D., J.A. Nyman, and W.H. Patrick, Jr. 1994. Peat collapse, ponding, and wetland loss in a rapidly submerging coastal marsh. Journal of Coastal Research 10:1021-1030.
  • Nyman, J.A., R.D. DeLaune, H.H. Roberts, and W.H. Patrick, Jr. 1993. Relationship between vegetation and soil formation in a rapidly submerging coastal marsh. Marine Ecology Progress Series 96:269-279.
  • Nyman, J.A., R.D. DeLaune, and W.H. Patrick, Jr. 1990. Wetland soil formation in the rapidly subsiding Mississippi River Deltaic Plain: mineral and organic matter relationships. Estuarine, Coastal and Shelf Science 31:57-69.

Personal History: Born during 1960 in Hattiesburg, Mississippi; raised in New Orleans, Louisiana; married and a father.