Current Search: Invasive plants--Ecology (x)
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- Title
- Influence of Soil Disturbance and Fire on the Distribution of Caesar’s Weed (Urena Lobata) in Pine Flatwoods.
- Creator
- Hagood, Daniel Harrison, Benscoter, Brian, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
- Abstract/Description
-
Novel disturbances can increase the vulnerability of pine flatwoods to exotic species such as Caesar’s weed (Urena lobata), a plant that has invaded many ecosystems. To understand Caesar’s weed response to disturbance, a factorial field manipulation was used to quantify invasion success. Influence of feral swine (Sus scrofa) on the presence of seeds in the area was analyzed. The effect of heat on Caesar’s weed germination was also quantified. A winter fire and mechanical soil disturbance had...
Show moreNovel disturbances can increase the vulnerability of pine flatwoods to exotic species such as Caesar’s weed (Urena lobata), a plant that has invaded many ecosystems. To understand Caesar’s weed response to disturbance, a factorial field manipulation was used to quantify invasion success. Influence of feral swine (Sus scrofa) on the presence of seeds in the area was analyzed. The effect of heat on Caesar’s weed germination was also quantified. A winter fire and mechanical soil disturbance had no statistical effect on the spread of Caesar’s weed. However, in feral swine disturbed soils Caesar’s weed was more likely to be husked and experience less competition from seeds of other species. Low levels of seed heating increased germination. This data can provide information about the influences of fire and soil disturbances on the spread of Caesar’s weed, as well as how fire intensity levels can affect the spread of invasive Caesar’s weed.
Show less - Date Issued
- 2017
- PURL
- http://purl.flvc.org/fau/fd/FA00004928
- Subject Headings
- Ecology -- Florida, Urena lobata, Invasive plants--Ecology
- Format
- Document (PDF)
- Title
- Microbial Aspects of Plant Invasion: An Analysis of Soil Microbial Communities Associated with the Invasive Plant - (Schinus terebinthifolius) Brazilian Pepper Tree Across South-Eastern Florida.
- Creator
- Dawkins, Karim, Esiobu, Nwadiuto, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
- Abstract/Description
-
The Brazilian pepper tree (BP, Schinus terebinthifolius), introduced to the United States in the 1800s, has since become a category one invasive plant in Florida, aggressively spreading to 3000 km2 of prime habitat. There is a serious dearth of knowledge on whether the rhizobiome plays any roles in the displacement of native flora and the range expansion of BP. This thesis discusses the well-established plant invasion mechanisms of the BP and highlights key emerging mechanisms and gaps in (a)...
Show moreThe Brazilian pepper tree (BP, Schinus terebinthifolius), introduced to the United States in the 1800s, has since become a category one invasive plant in Florida, aggressively spreading to 3000 km2 of prime habitat. There is a serious dearth of knowledge on whether the rhizobiome plays any roles in the displacement of native flora and the range expansion of BP. This thesis discusses the well-established plant invasion mechanisms of the BP and highlights key emerging mechanisms and gaps in (a) the current understanding of the molecular, below-ground processes of BP invasion and (b) studies on the potential role of microbial interactions in the success of BP invasion already established for other select invasive species, and the intervention of soil metagenomic studies to elucidate plant invasive mechanisms. These poorly studied mechanisms could further explain the aggressive spread and resilience of BP and contribute significantly to the development of effective and sustainable control measures, enabling appropriate strategies for restoring native plants.
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004697, http://purl.flvc.org/fau/fd/FA00004697
- Subject Headings
- Brazilian pepper tree, Ecological risk assessment, Forest ecology, Invasive plants -- Ecology, Nonindigenous pests -- Geographical distribution, Plant invasions
- Format
- Document (PDF)