Current Search:  Melaleuca quinquenervia (x)

View All Items

  • CSV Spreadsheet
(1 - 4 of 4)
Invasion-mediated recovery following managed disturbance in the northern Everglades
Title
Invasion-mediated recovery following managed disturbance in the northern Everglades.
Creator
Lange, James J., Benscoter, Brian, Graduate College
Date Issued
2013-04-12
PURL
http://purl.flvc.org/fcla/dt/3361942
Subject Headings
Melaleuca quinquenervia, Invasive plants, Wetland management, Wetland ecology, Arthur R. Marshall Loxahatchee National Wildlife Refuge (Fla.)
Format
Document (PDF)
effect of water level variation on the growth of Melaleuca seedlings from the Lake Okeechobee littoral zone
Title
The effect of water level variation on the growth of Melaleuca seedlings from the Lake Okeechobee littoral zone.
Creator
Lockhart, Christine Syrk, Florida Atlantic University, Austin, Daniel F.
Abstract/Description
The invasive exotic wetland tree, Melaleuca quinquenervia, continues to rapidly expand throughout seasonally wet areas of southern Florida. Water managers are concerned that lowering the water levels of Lake Okeechobee, part of the Everglades ecosystem, while benefitting various natural resources, would stimulate the Melaleuca population. Saplings and seven-week old seedlings were subjected to various hydroperiod treatments, based on a simulation of historical water level variations. Saplings...
Show moreThe invasive exotic wetland tree, Melaleuca quinquenervia, continues to rapidly expand throughout seasonally wet areas of southern Florida. Water managers are concerned that lowering the water levels of Lake Okeechobee, part of the Everglades ecosystem, while benefitting various natural resources, would stimulate the Melaleuca population. Saplings and seven-week old seedlings were subjected to various hydroperiod treatments, based on a simulation of historical water level variations. Saplings grew taller, increased shoot number, and increased root biomass under longer hydroperiods with fluctuating water levels, including short periods of submersion. Age affected seedling response--those submersed at seven weeks grew slower and had less biomass than submersed 12-week old seedlings, yet mortality was low at both ages. While Melaleuca's plasticity allows it to adapt to hypoxic, aquatic conditions by means of aquatic heterophylly and adventitious roots, like other wetland trees, Melaleuca has limited flood tolerance. Algae and drought also increase mortality.
Show less
Date Issued
1995
PURL
http://purl.flvc.org/fcla/dt/15157
Subject Headings
Melaleuca quinquenervia--Florida, Plants--Effect of water levels on--Florida--Lake Okeechobee
Format
Document (PDF)
Using scientific visualization to enhance historical aerial photography in documenting vegetation change over time: Melaleuca quinquenervia, a case study
Title
Using scientific visualization to enhance historical aerial photography in documenting vegetation change over time: Melaleuca quinquenervia, a case study.
Creator
Morrow, Victoria Elizabeth, Florida Atlantic University, Roberts, Charles
Abstract/Description
The objective of this thesis is to conduct a time series analysis of melaleuca growth in the littoral zone of western Lake Okeechobee, using historical aerial photography and Scientific Visualization, Image Enhancement and Image Exploration techniques are examined and compared. Problems associated with creating a time series analysis using aerial photography for use in an integrated GIS are explored. A spatial analysis of environmental factors affecting the growth of Melaleuca quinquenervia...
Show moreThe objective of this thesis is to conduct a time series analysis of melaleuca growth in the littoral zone of western Lake Okeechobee, using historical aerial photography and Scientific Visualization, Image Enhancement and Image Exploration techniques are examined and compared. Problems associated with creating a time series analysis using aerial photography for use in an integrated GIS are explored. A spatial analysis of environmental factors affecting the growth of Melaleuca quinquenervia is conducted, and an analysis of the validity of such statistical inferences for use in future decision making is examined. Results indicate that managed water levels inside Lake Okeechobee did indeed have an effect on the rate of growth of Melaleuca quinquenervia. Recommendations for future data gathering and study are outlined.
Show less
Date Issued
1997
PURL
http://purl.flvc.org/fcla/dt/15395
Subject Headings
Melaleuca quinquenervia--Monitoring--Florida--Okeechobee, Lake, Vegetation dynamics, Vegetation monitoring, Okeechobee, Lake (Fla)
Format
Document (PDF)
COMBINED LEGACY IMPACTS OF MELALEUCA QUINQUENERVIA AND BROADCAST AERIAL HERBICIDE TREATMENTS IN THE FLORIDA EVERGLADES
Title
COMBINED LEGACY IMPACTS OF MELALEUCA QUINQUENERVIA AND BROADCAST AERIAL HERBICIDE TREATMENTS IN THE FLORIDA EVERGLADES.
Creator
Lange, James J., Markwith, Scott, Florida Atlantic University, Department of Geosciences, Charles E. Schmidt College of Science
Abstract/Description
Melaleuca quinquenervia is an Australian tree, an aggressive invader of South Florida ecosystems, and has impacted over 100,000 acres of wetlands with many documented deleterious effects on native ecosystems. Millions of dollars are spent each year on management. The most rapid and cost-effective approach to date is the delivery of broadcast aerial herbicide application via helicopter, though long-term effects of this indiscriminate approach on native vegetation communities is poorly...
Show moreMelaleuca quinquenervia is an Australian tree, an aggressive invader of South Florida ecosystems, and has impacted over 100,000 acres of wetlands with many documented deleterious effects on native ecosystems. Millions of dollars are spent each year on management. The most rapid and cost-effective approach to date is the delivery of broadcast aerial herbicide application via helicopter, though long-term effects of this indiscriminate approach on native vegetation communities is poorly understood. We experimentally examined the effects of broadcast herbicides on uninvaded sawgrass plots in comparison to clip treatments and controls which showed that while clipped plots quickly recovered toward pre-treatment dominance, herbicide plots remained highly dissimilar and showed little to no recruitment even after 36 weeks. We also examined untreated Melaleuca stands to assess relationships between invasion severity and canopy cover using a generalized linear model with a beta distribution. Basal area, number of stems, and the interaction between basal area and number of stems was significantly related to canopy cover. Finally, we surveyed transects through aerially-treated Melaleuca stands (7 years post-treatment) separated into zones of dense infestation, sparse infestation, and untreated marsh. We compared differences in microtopography, invasion severity, and water quality to quantify changes in the physical environment brought about by both invasion and aerial treatment relative to the surrounding marsh. Additionally, we used percent cover abundance of vascular plant species in plots to compare vegetation communities between zones.
Show less
Date Issued
2024
PURL
http://purl.flvc.org/fau/fd/FA00014474
Subject Headings
Melaleuca quinquenervia, Everglades (Fla.)--Environmental conditions--Management, Invasive plants
Format
Document (PDF)