Global Invasive Species Database
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Aquatic Plant Information System
Habitattitude Campaign
A campaign geared towards aquarium hobbyists, backyard pond owners, water gardeners and others. Habitattitude TM is about consumer awareness and responsible behaviors. By drawing attention to the potential environmental ramifications of the aquarium and water garden hobbies while promoting responsible consumer behaviors, Habitattitude TM avoids the definition debate surrounding "invasive species." Ultimately, the campaign seeks to eliminate the transfer and survival of any species outside of your enclosed, artificial system, which has the potential to cause the loss or decline of native plants and animals.
Invasive Aquatic Plants
Based on records from the Global Invasive Species Database , invasive aquatic plant species found in at least one of the southeastern U.S. states including Kentucky, Tennessee, North Carolina, South Carolina, Georgia, Alabama, and Mississippi are presented below:
Brazilian elodea (Egeria densa ) Common water hyacinth (Eichhornia crassipes ) Florida elodea (Hydrilla verticillata ) Giant duckweed ( Spirodela polyrhiza ) Peruvian primrose-willow (Ludwigia peruviana ) Brazilian watermilfoil (Myriophyllum aquaticum ) Eurasian watermilfoil (Myriophyllum spicatum ) Floating heart (Nymphoides peltata )
Water lettuce (Pistia stratiotes ) Curly pondweed (Potamogeton crispus ) Delta arrowhead (Sagittaria platyphylla ) Water fern (Salvinia minima ) Alligatorweed (Alternanthera philoxeroides ) Purple loosestrife (Lythrum salicaria ) Giant salvinia (Salvinia molesta )
Invasive Aquatic Plants of the Southeastern United States For information about invasive aquatic plants inhabiting the southeastern United States, refer to the Web resources for invasive aquatic plants shown on this page. These resources contain the scientific names of invasive aquatic plants listed above that occur in at least one of the specified states, according to the Global Invasive Species Database . NBII Metadata clearinghouse records about invasive aquatic plants are also available from the NBII Metadata Clearinghouse .
NBII Metadata Records - Invasive Aquatic Plants - KY, TN, NC, SC, GA, AL, MS
Purple Loosestrife Locations Integrated By NBII-SAIN into NAWMA Format [
Sat Mar 31 20:00:00 EDT 2007 ]
Purple Loosestrife locations gathered from regional data contributors and placed in the North American Weed Management Association (NAWMA) invasive plant mapping standard format....
Purple Loosestrife Locations Integrated By NBII-SAIN into NAWMA Format [
Sat Mar 31 20:00:00 EDT 2007 ]
Purple Loosestrife locations gathered from regional data contributors and placed in the North American Weed Management Association (NAWMA) invasive plant mapping standard format....
Purple Loosestrife Locations Integrated By NBII-SAIN into NAWMA Format [
Sat Mar 31 20:00:00 EDT 2007 ]
Purple Loosestrife locations gathered from regional data contributors and placed in the North American Weed Management Association (NAWMA) invasive plant mapping standard format....
2001 Coastal Louisiana Vegetative Type Characterization Data [
Fri Dec 31 19:00:00 EST 2004 ]
This data set consists of Landsat imagery, which has been classified according to land/water. The Chabreck-Linscombe vegetation type data was then placed on top of the classified raster data to create a new vegetation data for Coastal Louisiana for the year 2001....
1978 Coastal Louisiana Vegetative Type Characterization Data [
Fri Dec 31 19:00:00 EST 2004 ]
This data set consists of Landsat imagery, which has been classified according to land/water. The Chabreck-Linscombe vegetation type data was then placed on top of the classified raster data to create a new vegetation data for Coastal Louisiana for the year 1978....
1988 Coastal Louisiana Vegetative Type Characterization Data [
Fri Dec 31 19:00:00 EST 2004 ]
This data set consists of Landsat imagery, which has been classified according to land/water. The Chabreck-Linscombe vegetation type data was then placed on top of the classified raster data to create a new vegetation data for Coastal Louisiana for the year 1988....
1997 Coastal Louisiana Vegetative Type Characterization Data [
Fri Dec 31 19:00:00 EST 2004 ]
This data set consists of Landsat imagery, which has been classified according to land/water. The Chabreck-Linscombe vegetation type data was then placed on top of the classified raster data to create a new vegetation data for Coastal Louisiana for the year 1997....
Appalachian Trail Environmental Monitoring- Counties with Purple Loosestrife in the AT Corridor (broadly defined) [
Tue Nov 30 19:00:00 EST 2004 ]
This dataset was created for the Appalachian Trail Environmental Monitoring Community project funded by the National Biological Information Infrastructure-Southern Appalachian Information Node (NBII-SAIN) at the University of Tennessee in Knoxville, TN. The goal of the project is through collaboration among willing partners, to establish a 2,167 mile continental transect dedicated to environmental inventory and monitoring (I&M) via the Appalachian Trail (AT) Corridor. This goal will be realized by the creation of an internet Community on the USGS NBII Portal concerning the environmental I&M on the AT Corridor. A database of publicly available key ecosystem data themes was defined, and the data harvested from various sources. The purpose of these compiled data sets is to place the state of the environment along the A.T. in a continental-scale context in one centralized location. With assistance from the USGS Eastern Region Geospatial Program Office, these datasets will be implemente...
1993 Aerial survey of Nutria Damage of Barataria-Terrebonne Basins [
Mon Dec 31 19:00:00 EST 2001 ]
This data set consists of 141 data point sites indicating the extent of nutria damage in Barataria-Terrebonne Basins in May and December of 1993. Parameters include marsh type, damage observed and the serverity of, abundance of and number sighted, vegetative species impacted, geographic coordinates...
1995 Aerial survey of Nutria Damage of Barataria Basin, Louisiana [
Mon Dec 31 19:00:00 EST 2001 ]
This data set consists of 56 data point sites indicating the extent of nutria damage in Barataria Basin in the Spring of 1995. Parameters include marsh type, damage observed and the serverity of, abundance of and number sighted, vegetative species impacted, geographic coordinates...
1996 Aerial survey of Nutria Damage of Barataria-Terrebonne Basins [
Mon Dec 31 19:00:00 EST 2001 ]
This data set consists of 158 data point sites indicating the extent of nutria damage in Barataria-Terrebonne Parish in the Spring of 1996. Parameters include marsh type, damage observed and the serverity of, abundance of and number sighted, vegetative species impacted, geographic coordinates...
Davis Pond Marsh-Vegetative Type Map [
Sat Mar 31 19:00:00 EST 2001 ]
This data set consists of vector line information. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the Davis Pond study area in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects over the area (bounded by Bayou Lafourche on the west, Mississippi River on the east, Highway 90 to the north, and the Gulf of Mexico to the south). Vegetative data were obtained at pre-determined stations. The stations were located using a Trimble Ag 122 Global Positioning system (GPS) and a computer running Dynamo Geographic Information System (GIS) by GeoFocus. This information was recorded manually into field tally sheets and later converted in a GIS application. The marsh type delineation lines were produced by freehanding contours through on-screen interpretation. The flight line data were used as a guide for drawing the lines. The new data s...
1989-1995 Vegetative Data Points for Caernarvon Basin [
Sun Dec 31 19:00:00 EST 2000 ]
This data set consists of data points collected by Greg Linscombe and Noel Kinler of Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division. Visual observations were conducted by helicopter along vegetative survey flight lines. At each point, vegetative parameters were recorded, including species information, for the time period between 1989 and 1995....
1989-1995 Vegetative Polygon for Caernarvon Basin [
Sun Dec 31 19:00:00 EST 2000 ]
This data set consists of polygons delineating habitat type in Caernarvon Basin in the years 1989 to 1995. The delineations were generated using the point data collected by Greg Linscombe and Noel Kinler of Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division. The data were gathered along the same flight transects for the years 1989 to 1995....
2001 Louisiana Coastal Marsh-Vegetative Type Map (Database) [
Sun Dec 31 19:00:00 EST 2000 ]
This data set contains vector line information. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects spaced 1.87 miles apart from the Texas State line to the Mississippi State line. Vegetative data was obtained at pre-determined stations spaced at 0.5 miles along each transect. The stations were located using a Trimble Ag 122 Global Positioning System (GPS) and a computer running GPSView by Geowarehouse. This information was recorded manually into field tally sheets and later this information was entered into a Microsoft Access database. At this point, this information was brought into a GIS application by converting the file to a database format (dbf). The marsh type delineation lines were produced by freehanding contours throu...
Vegetative Transect Lines 2001 [
Sun Dec 31 19:00:00 EST 2000 ]
This data set consists of the vegetative transect lines used in the 2001 Vegetative Type Marsh Map. The data deplicts the length of the marsh type by parish and stewardship. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects spaced 1.87 miles apart from the Texas State line to the Mississippi State line. Vegetative data was obtained at pre-determined stations spaced at 0.5 miles along each transect. The stations were located using a Trimble Ag 122 Global Positioning System (GPS) and a computer running GPSView software. This information was recorded manually into field tally sheets and later this information was entered into a Microsoft Access database....
Vegetative Transect Lines 1997 [
Tue Oct 31 19:00:00 EST 2000 ]
This data set consists of the vegetative transect lines used in the 1997 Vegetative Type Marsh Map. The data deplicts the length of the marsh type by parish and stewardship. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects spaced 1.87 miles apart from the Texas State line to the Mississippi State line. Vegetative data was obtained at pre-determined stations spaced at 0.5 miles along each transect. The stations were located using a Trimble Ag 122 Global Positioning System (GPS) and a computer running Dynamo Geographic Information System (GIS) by GeoFocus. This information was recorded manually into field tally sheets and later this information was entered into a Microsoft Access database....
Vegetation Type Map of the Louisiana Coastal Marshes 1968 [
Thu Mar 30 19:00:00 EST 2000 ]
This data set consists of a digitized format of an original map entitled "Vegetation Type of Map of Coastal Louisiana 1968". The original data set was collected through visual field observations by Robert Chabreck (Louisiana Cooperative Wildlife Research Unit, LSU), Ted Joanen (Louisiana Wildlife and Fisheries Commission), and A.W. Palmisano (Louisiana State University) The observations were made while flying over the study area (Louisiana Coastal Zone). The flight was along north/south transects spaced 7.5 minutes apart from the Texas state line to the Mississippi state line. Vegetative data were obtained at predetermined stations spaced at 1/4 mile intervals along each transect. This information was recorded manually into field tally sheets and the marsh type delineation lines were produced by freehanding contour lines on a basemap. The resulting map was scanned, rectified using ERDAS Imagine software, and digitized using ESRI ArcInfo 7.x. The water category was taken from the or...
Vegetation Type Map of the Louisiana Coastal Marshes 1978 (digital database) [
Thu Mar 30 19:00:00 EST 2000 ]
This data set consists of a digitized format of an original map entitled "Vegetation Type Map of the Louisiana Coastal Marshes 1978". The original data set was collected through visual field observations by Robert H. Chabreck, Louisiana State University, and Greg Linscombe, Louisiana Department of Wildlife and Fisheries. The observations were made while flying over the study area in a Bell 206 Jet Ranger Helicopter (Louisiana Coastal Zone). The flight was along north/south transects spaced 3.75 minutes apart from the Texas State line to the Mississippi State line. Vegetative data was obtained at predetermined stations spaced at 0.5 miles along each transects. The location of vegetation change along each transect was denoted on aerial photos. The marsh type delineation lines were produced by freehanding contour lines on a basemap based on the data from the flight. The resulting map was scanned, rectified using ERDAS Imagine software, and digitized onscreen using ESRI ArcInfo 7.x. Th...
1988 Louisiana Coastal Marsh Vegetative Type Map (database) [
Thu Mar 30 19:00:00 EST 2000 ]
This data set contains vector line information. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects 1.78 miles apart from the Texas State line to the Mississippi State line. Vegetative data was obtained at pre-determined stations at .5 mile intervals along each transect. Coverage is of the coastal region of the State of Louisiana....
St. Vincent National Wildlife Refuge Plant Database [
Fri Dec 31 19:00:00 EST 1999 ]
The natural resource management staff at the U.S. Fish and Wildlife Service, St. Vincent National Wildlife Refuge determined a need for an updated plant survey on the refuge including the main island (St. Vincent Island) and the Pig Island unit (located in St. Joe Bay). This data set consist of a list of 596 species found on the two units. The list provides the common and scientific name, author citation, characteristics, flowering date, life history, life form, origin, wetland and Florida status, and species at risk/rank for each plant. The data were generated along with a vegetation map for the area....
1997 Louisiana Coastal Marsh-Vegetative Type Map (Database) [
Sat May 31 20:00:00 EDT 1997 ]
This data set contains vector line information. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects spaced 1.87 miles apart from the Texas State line to the Mississippi State line. Vegetative data was obtained at pre-determined stations spaced at 0.5 miles along each transect. The stations were located using a Trimble Ag 122 Global Positioning System (GPS) and a computer running Dynamo Geographic Information System (GIS) by GeoFocus. This information was recorded manually into field tally sheets and later this information was entered into a Microsoft Access database. At this point, this information was brought into a GIS application by converting the file to a database format (dbf). The marsh type delineation lines were produce...
1997 Louisiana Coastal Marsh Vegetative Type Map (Database) [
Sat May 31 20:00:00 EDT 1997 ]
This data set contains vector line information. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects spaced 1.87 miles apart from the Texas state line to the Mississippi state line. Vegetative data was obtained at pre-determined stations spaced at 0.5 miles along each transect. The stations were located using a Trimble Ag 122 Global Positioning system (GPS) and a computer running Dynamo Geographic Information System (GIS) by GeoFocus. This information was recorded manually into field tally sheets and later this information was entered into a Microsoft Access database. At this point, this information was brought into a GIS application by converting the file to a database format (dbf). The marsh type delineation lines were produce...
1997 Louisiana Coastal Marsh Vegetative Type Transect Point Database [
Sat May 31 20:00:00 EDT 1997 ]
This data set contains vector point information. The orignal data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study areas (Louisiana Coastal Zone) in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects spaced 1.87 miles apart from the Texas state line to the Mississippi state line. Vegetative data was obtained at pre-determined stations spaced at 0.5 miles along each transect. The stations were located using a Trimble Ag 122 Global Positioning system (GPS) and a computer running Dynamo Geographic Information System (GIS) by GeoFocus. This information was recorded manually into field tally sheets and later was entered into a Microsoft Access Database. At this point, this information was brought into a GIS application by converting the file to database format (dbf). A GIS software application was utilized to generate the points a...
GIS Application: Spatial Surfacing of Point Data for Myriophyllum Investigations [
Sat Dec 31 19:00:00 EST 1994 ]
Eurasian watermilfoil (Myriophyllum spicatum L.) has become a nuisance plant species in North America. In recent years, it has become increasingly abundant in the Upper Mississippi River System (UMRS) and at some locations has regularly colonized areas which had previously hosted wild celery (Vallisneria americana Michx.), an important waterfowl food species. In summer 1993, initial efforts were undertaken to understand the environmental requisites of Myriophyllum in the UMRS. To accomplish this, a sampling grid was established within a Myriophyllum bed in Pool 7 near La Crosse, Wisconsin. Transects were spaced 18.3-m (60-ft)intervals, with sample sites 9.15 m (30 ft) apart on transects. In total, 164 sites were sampled, and at each site information was collected on plant biomass, water depth, sediment moisture content, and sediment organic content. In this study, the data were examined via geographic information systems (GIS) software. Goals of the work were to examine the functionali...
Evaluation of Invasions and Declines of Submersed Aquatic Macrophytes [
Sat Dec 31 19:00:00 EST 1994 ]
During the past 60 yr, sightings of aquatic macrophyte species in geographic regions where they had previously not been found have occurred with increasing frequency, apparently due to both greater dispersal of the plants as a result of human activities as well as better documentation of plant distribution. Intercontinental invasions, such as Myriophyllum spicatum and Hydrilla into North America, Elodea canadensis into Europe and Elodea nuttallii, Egeria densa and Cabomba caroliniana into Japan, have generally been well documented. However, the spread of an exotic species across a continent after its initial introduction (e.g., Potamogeton crispus in North America) or the expansion of a species native to a continent into hitherto unexploited territory (e.g., the expansion of the North American native Myriophyllum heterophyllum into New England) have received little attention. Natural declines in aquatic macrophyte communities have also received little scientific study although there ar...
Assessment of responses of Hydrilla verticillata to atmospheric change with modeling predictions for four western United States reservoirs [
Sat Dec 31 19:00:00 EST 1994 ]
This document is the published result, conclusion, or progress report of research performed by the staff of the U.S. Geological Survey, Fort Collins Science Center (FORT). Information used to prepare the metadata for this document was extracted from FORT's Publications Database....
Interactive effects of CO2 enrichment and temperature on the growth of Dioecious Hydrilla verticillata [
Fri Dec 31 19:00:00 EST 1993 ]
This document is the published result, conclusion, or progress report of research performed by the staff of the U.S. Geological Survey, Fort Collins Science Center (FORT). Information used to prepare the metadata for this document was extracted from FORT's Publications Database....
Non-Genetic Origin of Isoenzymic Variability in Subterranean Turions of Monoecious and Dioecious Hydrilla [
Mon Dec 31 19:00:00 EST 1990 ]
This document is the published result, conclusion, or progress report of research performed by the staff of the U.S. Geological Survey, Fort Collins Science Center (FORT). Information used to prepare the metadata for this document was extracted from FORT's Publications Database....
Production of axillary turions by the dioecious Hydrilla verticillata [
Sat Dec 31 19:00:00 EST 1988 ]
This document is the published result, conclusion, or progress report of research performed by the staff of the U.S. Geological Survey, Fort Collins Science Center (FORT). Information used to prepare the metadata for this document was extracted from FORT's Publications Database....
Protect Your Waters and Stop Aquatic Hitchhikers
The
Stop Aquatic Hitchhikers!
campaign and Protect Your Waters web site empower recreational users to become part of the solution in stopping the transport and spread of these harmful hitchhikers.
The national Aquatic Nuisance Species (ANS) Task Force, the U.S. Fish and Wildlife Service and the U.S. Coast Guard are the primary sponsors of this campaign.
This site provides information about aquatic hitchhikers, how to prevent them and recent news stories.
Species Spotlight
Water hyacinth
Eichhornia crassipes
Description: Floating plants with spongy leaf stalk. Flowers are purple. Leaves are shiny and oval on bulbous stalks. Often form dense mats.
Life History: This is probably the most aggressive aquatic weed ever known in the tropics. It reproduces both vegetatively and sexually.
Habitat: Lakes, streams, ponds, waterways, ditches, and backwater areas.
Distribution: Water hyacinth originated in tropical South America. (MAP )
Resources:
USGS/NAS Factsheet
Western Aquatic Plant Management Society Factsheet
Global Invasive Species Database
Species Spotlight
Snapshot of several floating water lettuce plants. California Dept. of Food and Agriculture.
Water lettuce
Pistia stratiotes
Description: This species resembles a "blooming" floating head of cabbage. It has long, feathery, hanging roots.
Life History: Reproduces both vegetatively and by seed. Vegetative reproduction involves daughter vegetative offshoots of mother plants.
Distribution: Probably native to South America. It is now found throughout the tropics and subtropics. (MAP )
Resources:
USDA PLANTS Profile
Global Invasive Species Database
A Risk assessment of Pistia stratiotes
Species Spotlight
Springs of Hydrilla. Photo: Kerry Dressler.
Hydrilla; Waterthyme
Hydrilla verticillata
Description: Four to eight thin, whorled leaves around a stem. Closely resembles other members of this family such as Elodea canadensis (native to North America) and Egeria densa (native to South America).
Life History: Growth and spread often are rapid. This species often reproduces vegetatively from stem fragments.
Hydrilla can be either monoecious (both male and female flowers on the same plant) or dioecious (male and female flowers on different plants). Each variety of hydrilla has some unique growth characteristics. Southern populations are predominantly dioecious female (plants having only female flowers) that overwinter as perennials. Populations north of South Carolina are essentially monoecious (having both male and female flowers on the same plant). They set some fertile seed, and depend on tubers for overwintering.
Habitat: Freshwater lakes, ponds, rivers, impoundments and canals.
Distribution: Hydrilla verticillata is widely distributed in the Eastern Hemisphere but it is uncertain as to where it is truly native. (MAP )
Resources:
USGS/NAS Factsheet
USDA PLANTS profile