Influence of Water Level on Torpedograss Establishment in Lake Okeechobee, Florida

Autor:	R. Michael Smart, Charles Hanlon, Dian H. Smith
Rok vydání:	2004
Předmět:	geography Marsh geography.geographical_feature_category Panicum repens biology Ecology Aquatic Science Native plant biology.organism_classification Invasive species Water level Waves and shallow water Habitat Environmental science Eleocharis Water Science and Technology
Zdroj:	Lake and Reservoir Management. 20:1-13
ISSN:	2151-5530 1040-2381
DOI:	10.1080/07438140409354096
Popis:	Lake Okeechobee, a 173,200 ha shallow subtropical lake located in south Florida, has been invaded recently by torpedograss (Panicum repens), an exotic, terrestrial species, that was intentionally introduced to Florida in the early 1900s. Since the 1970s, more than 6,000 ha of native plants, including spikerush (Eleocharis cellulose) and beakrush (Rhynchospora spp.) and open water habitat have been displaced by torpedograss in areas of the marsh where inundation depths often are less than 50 cm. The ability of torpedograss to disperse and become established at different water depths was evaluated in a series of experimental pond studies. These studies revealed that fragments remain buoyant for extended periods and so facilitate the dispersal of torpedograss within the lake. If fragments become anchored to sediment that is either exposed or in shallow water, they can readily root and establish mature plants. Once established, torpedograss can thrive in depths of 75 cm or less and can survive prolon...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dfea69ec392a4e15f683af1dc22954c1 https://doi.org/10.1080/07438140409354096 Zobrazit plný text záznamu