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Status And Trends Of Phragmites Australis Invasion Within Constructed Wetlands In Virginia, Kirk J. Havens, Harry Berquist, Walter I. Priest Iii, James E. Perry, John Anderson, Libby Norris Feb 2002

Status And Trends Of Phragmites Australis Invasion Within Constructed Wetlands In Virginia, Kirk J. Havens, Harry Berquist, Walter I. Priest Iii, James E. Perry, John Anderson, Libby Norris

Reports

Part I. Field GPS Mapping of P. australis Populations. Kirk J. Havens, Harry Berquist, and Walter I. Priest, Ill

Part II. Evaluating the Use of Multispectral Imagery for Identifying and Quantifying P. australis Populations in Created Wetlands. James E. Perry and John Anderson

Part Ill. A Summary of Methods for Controlling Phragmites australis. Libby Norris, James E. Perry, and Kirk J. Havens


Microevolutionary Processes In Chesapeake Bay (Virginia, Usa) Eelgrass, Zostera Marina L, Jennifer Michelle Rhode Jan 2002

Microevolutionary Processes In Chesapeake Bay (Virginia, Usa) Eelgrass, Zostera Marina L, Jennifer Michelle Rhode

Dissertations, Theses, and Masters Projects

Eelgrass (Zostera marina L.) is the northern hemisphere's dominant marine angiosperm, a species with both ecological and economic importance. Initial allozyme surveys of eelgrass populations in Chesapeake Bay (Virginia, USA) revealed substantial amounts of geographically-partitioned genetic variation, which could be the result of nonselective demographic processes, including founder events and drift. However, strong spatial variation in the environment and in eelgrass morphology suggests that differential adaptation of isolated beds to local environmental conditions could also produce these patterns. This dissertation used three sets of studies to investigate microevolutionary processes might produce the observed variation among Chesapeake eelgrass beds: (1) an …


Bultongue Sagittaria Lancifolia L. = Sagittaria Falcata Pursh, Gene Silberhorn Jan 2002

Bultongue Sagittaria Lancifolia L. = Sagittaria Falcata Pursh, Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.