Faculty
Faculty |
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Jenneke Maria VisserAssistant Professor - ResearchPh.D. 1989, Louisiana State University (Marine Sciences) M.S. 1985, University of Amsterdam (Biology) |
Wetland Restoration Ecology
Analysis of long-term trends in plant species composition and biomass as related to changes in climate, physical environment, and grazing.
Wildlife habitat use and population trends
Interaction between vegetation and its environment
2003 Coastal Stewardship Award
Publications: 12 peer reviewed journal articles, 3 peer reviewed reports, 3 popular science articles, 2 book reviews, and over 50 reports.
Steyer, G. D., C. E. Sasser, J. M. Visser, E. M. Swenson, J. A. Nyman, and R. C. Raynie. 2003 A proposed coast-wide reference monitoring system for evaluating wetland restoration trajectories in Louisiana. Environmental Monitoring and Assessment 81:107-117
Raynie, R. C. and J. M. Visser. 2002. Adaptive Management Review. Report prepared for the CWPPRA Task Force, New Orleans, LA. http://www.savelawetlands.org/site/adaptive/
Visser, J. M., C. E. Sasser, R. H. Chabreck, and R. G. Linscombe. 2002. The impact of a severe drought on the vegetation of a subtropical estuary. Estuaries 25(6):1185-1196.
Visser, J. M., C. E. Sasser, R. A. Chabreck, and R. G. Linscombe. 1999. Long-term vegetation change in Louisiana tidal marshes, 19681992. Wetlands. 19 (1) 168175.
Evers, D. E., C. E. Sasser, J. G. Gosselink, D. A. Fuller, and J. M. Visser. 1998. The impact of vertebrate herbivores on wetland vegetation in Atchafalaya Bay, Louisiana. Estuaries 21(1): 113.
Visser, J. M., and C. E. Sasser. 1995. Changes in tree species composition, structure, and growth in a bald cypress-water tupelo swamp forest: 1980-1990. Forest Ecology and Management 72:119129.
Sasser, C. E., J. M. Visser, D. E. Evers, and J. G. Gosselink. 1995. The role of environmental variables in interannual variation in species composition and biomass in a sub-tropical minerotrophic floating marsh. Canadian Journal of Botany 73(3):413424.
Visser, J. M., and G. W. Peterson. 1994. Breeding populations and colony site dynamics of seabirds nesting in Louisiana. Colonial Waterbirds 17(2): 146152.
Design criteria for the creation of artificial habitat for Brown
Pelicans, Sandwich Terns, and Royal Terns, Louisiana SeaGrant, PI with Charles E. Sasser and Greg Linscombe, 2/00 to 1/02.
Description: The Louisiana coast supports large colonies of seabirds.
Due to coastal erosion available natural habitat is disappearing. The goal of
this study is to provide regulators the information needed to design artificial
habitat. Several habitat characteristics will be quantified in habitats used
by colonies of Brown Pelicans, Royal Terns, and Sandwich Terns in 2000. This
characteristics will include distance to the nearest land, elevation, substrate,
etc. Multivariate statistical analyses will be used to determine those factors
that are most important in habitat selection for each species.
Penchant Basin Wetlands data collection and report preparation, Natural Resource Conservation Service, Co-PI with Charles E. Sasser and Erick M. Swenson<, 10/99 to 4/01.
Description: This project is part of a larger study that includes hydrology
measurements and modeling by the USGS and NRCS. Our role is to relate channel
hydrology to marsh hydrology in the Penchant Basin and the effect of increased
flow in the channels on exchange of suspended matter with the marsh.
CWPPRA University Assistance, PPL10, Louisiana Univerities Marine Consortium, PI with Erick M. Swenson, 5/99 to 11/00.
Description: The Coastal Wetland Planning Protection and Restoration
Act (CWPPRA) is administered in Louisiana through a Task Force of five federal
agencies and the state. My role is to act as a single point of contact for the
Task Force and its supporting personnel and the broader academic community.
As the Chair of the Academic Advisory Group, my responsibility is to supervise
contracts with scientists from all Louisiana universities. I attend all Task
Force and other CWPPRA related meetings and communicate information of Task
Force activities to the broader scientific community.
Thin-mat floatant demonstration project, Louisiana Department of Natural Resources, Co-PI with Charles E. Sasser, 1/99 to 12/01.
Description: Large areas of Panicum hemitomon-dominated floating
marshes have converted to thin-floating mats dominated by Eleocharis baldwinii
(Visser et al. 1999). These thin-mat flotants are relatively fragile and unstable
compared to the thick-mat P. hemitomon flotants they replaced. While
the technology for marsh restoration and creation, in the United States and
Louisiana, has been widely discussed and is being increasingly applied there
is almost no Gulf coast experience with the restoration or creation of floating
marshes. The Thin-Mat Floating Marsh Enhancement Demonstration Project is located
in the upper Bayou Penchant Basin in northwestern Terrebonne Parish, approximately
6 mi (9.7 km) south of Amelia, LA . The objective of this project is to demonstrate
the feasibility of inducing the development of thick, continually floating mats
from a thin-mat flotant through fertilization, reduction of mammal grazing,
and transplanting plant species of existing thick-mat floating marshes into
the thin-mat.
CWPPRA Academic Assistance Coordinator selected by 5 federal and 1 state agencies.
Full Member Sigma Xi
Popular science links: http://www.leeric.lsu.edu/le/cover/lead115.htm (SEABIRDS) and http://www.leeric.lsu.edu/le/cover/lead074.htm (NUTRIA)
Tel: (225) 578-6377
Fax: (225) 578-6376