||Wetland Vegetation Exercise|
T.A. Eddy and J.S. Aber
Emporia State University
This assignment for wetland plants presents statements and questions to be answered from designated web sites, information from sources noted below, resources you may find in your library, and handouts provided by the instructor. E-mail your answers to J.S. Aber.
- U.S. Army Corps of Engineers, Wetland Delineation Manual (large pdf file).
- U.S. Geological Survey, nonindigenous (invasive) aquatic macrophytes in the northeastern U.S.
- National Wetlands Inventory wetland plants from the U.S. Fish and Wildlife Service. See in particular the National List of Vascular Plant Species that Occur in Wetlands: 1996 National Summary (pdf file). Note especially the codes: FAC = facultative and OBL = obligative.
- Aquatic plants and their control, from K-State Research and Extension (see pdf file).
- See handouts as assembled and distributed (wet_veg.pdf files).
- Distinguish among the major wetland plant groups on the basis of flower and foliage characteristics described below. Identify one typical species for each category.
- How are wetland plants specialized to survive the absence of free oxygen in saturated soils or when submerged in water? Answer for floating plants, emergent plants, submerged plants, and the special situation of Spartina sp.
- Characterize a salt marsh by the dominant plant species and their zonal positions in the northeastern Gulf of Mexico.
- Characterize a fresh water inland marsh by dominant plant species and their zonal positions in glacier formed wetlands of an Iowa prairie.
- What is the 50/20 rule of evaluation of a possible wetland site? Construct an example to illustrate one stratum in a decision of the status of the site.
- How are acre-feet determined from measurements in a body of water? How are acre-feet used in managing an aquatic plant problem?
- Define and discuss facultative and obligate wetland plants in reference to their ecological roles in wetland environments.
- Describe the functions of graminoid, herbaceous, and woody plants in a wetland community as complements to the soils and hydrology of the site.
- Speculate as to why the primary production values for sedges, rushes and cattails are relatively high in prairie potholes in Iowa.
- Check out the USDA Plant hardiness zone map (2012). Briefly describe the basis of this map. What is the plant hardiness zone for your hometown?
Return to wetland syllabus.
EB/ES/GE 341 © J.S. Aber (2016).