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Analyzing Crime Spatial Patterns Using Remote Sensing And Geographical Information System Technologies: Investigating The Urban Opportunity Structure Model Of Jackson, Mississippi., Tian Wu
LSU Historical Dissertations and Theses
Crime is a spatial phenomenon. This study has proposed an urban opportunity structure model to understand the spatial patterns associated with crime based on the opportunities defined by urban structure. Any site in an urban space presents crime opportunities; the crime probability at a site is determined by factors such as urban physical settings, the transportation network and land use types. The hypothesized model was tested through the approach of multi-scale spatial analyses comprised of units from precinct maps used by the Jackson Police Department. The scales were defined at different area aggregations. The first scale was set on individual …
Benthic Foraminifera In Two Stressed Environments Of The Northern Gulf Of Mexico., Emil Platon
Benthic Foraminifera In Two Stressed Environments Of The Northern Gulf Of Mexico., Emil Platon
LSU Historical Dissertations and Theses
This is a study of Foraminifera from two stressed environments of the northern Gulf of Mexico: one of coastal seasonal hypoxia, the other of hydrocarbon seeps in bathyal depths---oxygen depletion being the common stressor. Many species of benthic Foraminifera survive the extreme oxygen depletion of Louisiana shelf waters in spring and summer. The dominant species are infaunal and have an adaptive tolerance to near anoxia or anoxia. A census of foraminiferal species present in dated sediment core samples reveals significant changes in the composition of the Louisiana-shelf benthic foraminiferal community in the past century. Agglutinated and porcelaneous orders living in …
Spatial Variability And Isotopic Studies Of The Prairie -Forest Transition Soil In Louisiana., Asfaw Bekele
Spatial Variability And Isotopic Studies Of The Prairie -Forest Transition Soil In Louisiana., Asfaw Bekele
LSU Historical Dissertations and Theses
The calcareous prairies of Louisiana are among the most endangered ecosystems in North America. The major threat to this ecosystem is the invasion by woody and herbaceous plants, primarily eastern red cedar (Juniperus virginiana ). The restoration and management of these rare plant communities require a thorough understanding of the soils supporting them. Geostatistical, fractal, and stable isotopic procedures were integrated to study the soil and vegetation spatial variability. The prairie soil was alkaline, the forest soil was acidic, and the transition soil was neutral. The spherical model described the spatial variability of virtually all the soil properties considered with …
Systematics Of Neotropical Satyrine Butterflies (Nymphalidae: Satyrinae: Euptychiina) Based On Larval Morphology And Dna Sequence Data And The Evolution Of Life History Traits., Debra Lynne Murray
Systematics Of Neotropical Satyrine Butterflies (Nymphalidae: Satyrinae: Euptychiina) Based On Larval Morphology And Dna Sequence Data And The Evolution Of Life History Traits., Debra Lynne Murray
LSU Historical Dissertations and Theses
Although satyrine butterflies (Lepidoptera: Nymphalidae: Satyrinae) are highly diverse and found worldwide in most terrestrial habitats, they have received little attention from systematists. This research focuses on one of the largest satyrine groups, the euptychiines, found from central United States to Argentina, with the greatest diversity in the Amazon. The subtribe Euptychiina has a troubled taxonomic history. Most genera were erected without diagnoses and placed within the subtribe without being examined. Before this project was initiated, little was known of their basic biology and morphology. Therefore, considerable attention was given to this area in my research. I describe the larvae …
Neither Natchez Nor Tara: An Environmental Historial Geography Of The Upper Pearl River Basin Of Mississippi, Protohistoric Period To 1940., Frederick William Sunderman
Neither Natchez Nor Tara: An Environmental Historial Geography Of The Upper Pearl River Basin Of Mississippi, Protohistoric Period To 1940., Frederick William Sunderman
LSU Historical Dissertations and Theses
This study examines the contrasting themes of land degradation and environmental stewardship of farming enterprises in the regional context of the Upper Pearl River Basin of Mississippi. Both the previous imagery and analysis of Southern Cotton Belt agriculture emphasize the profligate nature of farming practices. The contribution this study makes is to amend both the stock images and macro-analyses of Southern cotton culture. Analysis at the sub-regional level demonstrates that many farmers actually practiced sound land management techniques. Reconstructing the experiences of farmers in the Upper Pearl River Basin provides examples of ways in which regional distinctions amend widely conceived …
Ecological Structure Of Estaurine Fish Communities: Habitat Linkages Among Dominant Species Groups In Terminos Lagoon, Mexico., Ana Laura Lara-Dominguez
Ecological Structure Of Estaurine Fish Communities: Habitat Linkages Among Dominant Species Groups In Terminos Lagoon, Mexico., Ana Laura Lara-Dominguez
LSU Historical Dissertations and Theses
Terminos Lagoon in the southern Gulf of Mexico has 5 ecological subsystems: (1) fluvial lagoon systems (FLS) with permanent river discharge, low salinity, high turbidity and nutrients. (2) Central basin (CB) between marine and river conditions, intermediate salinity and variable transparency. (3) Inner littoral of Carmen Island (ILCI) with strong marine influence, high transparency and extensive seagrass meadows. (4) Carmen inlet (Estero Pargo, ESP) with a net outflow of water and high turbidity. (5) Puerto Real inlet (PR) with a net inflow of waters, high transparency and seagrasses. During a 15-month sampling, 13,691 individuals of 79 different species were collected …
A Spatial Inquiry Of Infant Low Birthweight And Cancer Mortality In East Baton Rouge Parish, Louisiana, Esra Qzdenerol
A Spatial Inquiry Of Infant Low Birthweight And Cancer Mortality In East Baton Rouge Parish, Louisiana, Esra Qzdenerol
LSU Historical Dissertations and Theses
Infant low birthweight rate in East Baton Rouge Parish is higher compared to the nation. Cancer is one of the most serious health problems in Louisiana. A few studies have indicated a relationship between the two health outcomes and their environment, but conclusions from these studies have not always been consistent. The spatial and temporal scales of the data and the methods used in these studies contribute to the inconsistent and uncertain results. The spatial patterns of infant low birthweight and cancer mortality in East Baton Rouge Parish from 1993 to 1996 and their relationships with environmental factors at three …
The Breeding Ecology Of White-Faced Ibis In The Lower Carson River Basin, Nevada, Eric Patrick Kelchlin
The Breeding Ecology Of White-Faced Ibis In The Lower Carson River Basin, Nevada, Eric Patrick Kelchlin
LSU Historical Dissertations and Theses
The Great Basin White-faced Ibis (Plegadis chihi) population is recognized as a Species of Management because of its small population size, limited number of traditional breeding sites, and vulnerability to habitat loss. The ability to predict future population trends and develop wetland management strategies is limited because many aspects of their breeding ecology and population dynamics are unknown. 1 examined White-faced Ibis nesting ecology and breeding habitat selection at the Lower Carson River Basin, Nevada, from 1995-1997, and the relationship between the local surface water conditions and trends in the number of breeding pairs from 1970-1997 on a local and …
American Alligator Nesting Ecology In Impounded Marsh Habitat, Louisiana., Steven Richard Reagan
American Alligator Nesting Ecology In Impounded Marsh Habitat, Louisiana., Steven Richard Reagan
LSU Historical Dissertations and Theses
The goal was to monitor a large number of female alligators over a 3-year period to obtain information on alligator nesting ecology. This dissertation, although designed to estimate annual nesting rates, provides additional meaningful information on methods of capture, tag retention rates, nest spacing patterns, segregation of size classes, nest site fidelity, the relationship between attendance and nest success, the effects of fire ants on alligator nest success, the relationship between hatchling alligators and their mother, and hatchling dispersal. Passive integrated transponder (PIT), monel web, and cranial mounted reflector tags were evaluated for marking and identifying alligators. Use of harmonic …
Molecular Systematics Of The Green Algal Order Trentepohliales (Chlorophyta)., Juan Manuel Lopez-Bautista
Molecular Systematics Of The Green Algal Order Trentepohliales (Chlorophyta)., Juan Manuel Lopez-Bautista
LSU Historical Dissertations and Theses
Molecular, karyological, and nuclear genome quantification data from representatives of the order Trentepohliales (Chlorophyta) were used to infer evolutionary relationships with other green algal classes and orders. Phylogenetic analyses of the nuclear-encoded small subunit ribosomal DNA (18S rDNA) sequences from taxa representing all of the major lineages of green algae consistently indicated that the subaerial Trentepohliales are closely related to Ulvophycean marine green algae, particularly to the siphonous and hemisiphonous orders. The phylogenetic distribution of continuous and discontinuous types of mitochondrial large subunit ribosomal RNAs (mtLSU rRNA) in green algae has been shown to be consistent with phylogenetic relationships previously …
A Spatial Inquiry Of Infant Low Birthweight And Cancer Mortality In East Baton Rouge Parish, Louisiana., Esra Ozdenerol
A Spatial Inquiry Of Infant Low Birthweight And Cancer Mortality In East Baton Rouge Parish, Louisiana., Esra Ozdenerol
LSU Historical Dissertations and Theses
Infant low birthweight rate in East Baton Rouge Parish is higher compared to the nation. Cancer is one of the most serious health problems in Louisiana. A few studies have indicated a relationship between the two health outcomes and their environment, but conclusions from these studies have not always been consistent. The spatial and temporal scales of the data and the methods used in these studies contribute to the inconsistent and uncertain results. The spatial patterns of infant low birthweight and cancer mortality in East Baton Rouge Parish from 1993 to 1996 and their relationships with environmental factors at three …
Ecology Of Seagrass Fishes And Macroinvertebrates On Guatemala's Atlantic Coast., Alejandro Arrivillaga
Ecology Of Seagrass Fishes And Macroinvertebrates On Guatemala's Atlantic Coast., Alejandro Arrivillaga
LSU Historical Dissertations and Theses
The ecology of fishes and macroinvertebrates inhabiting shallow seagrass beds was studied at Bahia La Graciosa, located in Amatique Bay in the Caribbean coast of Guatemala. The study area included extensive turtle grass, Thalassia testudinum, meadows over muddy substrate, whereas a more exposed shoreline also supported turtle grass meadows over sandy substrates outside the bay. A total of 166 samples were collected across two seasons and habitat types in three sampling trips to the area with a cylindrical drop sampler. Diversity and abundance of fishes and macroinvertebrates inhabiting seagrass and adjacent bare-sand sites were described to assess the relative importance …
Hyperdeprivation And Race -Specific Homicide, 1980--1990., Matthew Raleigh Lee
Hyperdeprivation And Race -Specific Homicide, 1980--1990., Matthew Raleigh Lee
LSU Historical Dissertations and Theses
Research on the nature of the urban underclass suggests that socioeconomic deprivation is multidimensional and involves more than just the personal experience of poverty. When negative characteristics like poverty and unemployment are concentrated geographically, it means that one is not only deprived of personal resources, but also deprived of contact with those who do have resources. Thus, when social disadvantage is concentrated, as it may be in underclass communities, this augments the effect of poverty, creating a situation of hyperdeprivation, by placing beyond reach those segments of mainstream society that are necessary for success. This dissertation extends this line of …
Epidemiology Of Anthrax In The Kruger National Park, South Africa: Genetic Diversity And Environment., Kimothy Lyn Smith
Epidemiology Of Anthrax In The Kruger National Park, South Africa: Genetic Diversity And Environment., Kimothy Lyn Smith
LSU Historical Dissertations and Theses
The Kruger National Park, (KNP), in the Republic of South Africa, provides a unique opportunity to investigate interesting and unresolved aspects of the epidemiology of the disease anthrax. Anthrax is a disease of primarily mammals caused by the Gram-positive, rod-shaped, spore-forming bacteria Bacillus anthracis. Beyond it's great historical significance anthrax is clearly important in the world today. From a rich legacy of empirical investigations and observations in the form of ecological and epidemiological studies conducted around the world this work endeavors to distill and extract the essence of what biotic and abiotic factors of environment might be causally associated with …
Biological Diversity And Cultural Survival: Mopan Maya Traditional Culture And Environmental Change In Southern Belize., Michael Kenneth Steinberg
Biological Diversity And Cultural Survival: Mopan Maya Traditional Culture And Environmental Change In Southern Belize., Michael Kenneth Steinberg
LSU Historical Dissertations and Theses
This dissertation is a study of the causal relationship between the decline of cultural diversity and environmental diversity. My study investigates the larger-scale economic, political, and social factors that result in the rejection of traditional land use strategies and how these changing strategies ultimately lead to an overall decline in environmental diversity in the Mopan Maya landscape in southern Belize. Five Mopan Maya cultural biogeographic case studies are presented, including the management of maize diversity, the species composition and variability of kitchen gardens, swidden-fallow agroforestry practices, traditional bee keeping, and hunting game and habitat preferences. These topics were chosen because …
Airbirds: Adaptative Strategies To The Aerial Lifestyle From A Life History Perspective., Manuel Marin-Aspillaga
Airbirds: Adaptative Strategies To The Aerial Lifestyle From A Life History Perspective., Manuel Marin-Aspillaga
LSU Historical Dissertations and Theses
"Airbirds" are defined as those birds that are adapted to almost constant life on the wing and do not perch, except for breeding and roosting. They use the air as the only medium in which to find and gather food. One taxon meets that definition: the swifts (Apodidae). Foraging zones of airbirds can be segregated in terms of clutch size, commuting foraging distance, nestling period, and nestling feeding rate. This study looked at foraging behavior and nestling diet, incubation patterns and mode of development in cypseloidine swifts, that as a group has extreme life history patterns. In a temperate one-egg …
Pliocene And Pleistocene Marine Ostracoda Of The Limon Basin, Costa Rica: A Record Of Paleoenvironmental Change., Pamela Frances Borne
Pliocene And Pleistocene Marine Ostracoda Of The Limon Basin, Costa Rica: A Record Of Paleoenvironmental Change., Pamela Frances Borne
LSU Historical Dissertations and Theses
Late Pliocene (3.8-3.6 Ma) and early Pleistocene (1.5-0.9 Ma) marine ostracodes of the Rio Banano, Quebrada Chocolate and Moin Formations (Limon Group) provide a detailed paleoenvironmental record for the Limon Basin, Costa Rica. The marine ostracode assemblages recovered from the Limon region do not provide evidence that the tropics cooled dramatically during the late Pliocene when the Northern Hemisphere was entering the Modern Ice Age. Paleoenvironmental interpretations are based on cluster analyses and a modern tropical ostracode analog analysis. Diverse ostracode assemblages of the middle Pliocene Rio Banano Formation are dominated by genera typical of the inner to middle neritic …
An Analytical Approach To A Tree-Farm Wetland Study., Robert Cunninghame Davidge
An Analytical Approach To A Tree-Farm Wetland Study., Robert Cunninghame Davidge
LSU Historical Dissertations and Theses
Wetland delineation is important because federal and local government regulations limit permissible uses of wetlands. Federal delineation regulations are based upon the use of a manual jointly agreed upon by EPA, USACOE, and NRCS. The manual provides for classification of land as either wetland or non-wetland based upon the 3 criteria of soil, vegetation, and hydrology. No provision is made for gradation between categorical wetland and categorical non-wetland. Controversy has sometimes developed between landowners and environmentalists as to proper wetland classification; some delineations have been considered arbitrary. The analytical method of wetland appraisal provides a means of assigning continuous numerical …
A Review Of The North American Squalodontidae (Mammalia, Cetacea)., Alton Cline Dooley Jr
A Review Of The North American Squalodontidae (Mammalia, Cetacea)., Alton Cline Dooley Jr
LSU Historical Dissertations and Theses
All available North American specimens of squalodont whales were examined to determine species assignments, and to determine functional aspects and ecological implications. Only two existing species of the 17 referred to Squalodontidae from North America are members of that family, Squalodon atlanticus and Squalodon calvertensis. Of these two species, only S. calvertensis is based on adequate material for consideration as a valid species. Squalodon calvertensis is redescribed, based on the material which has been collected since 1923. These specimens indicate that the species is found from New Jersey to North Carolina, in the Miocene Kirkwood, Calvert, and Pungo River Formations. …
Land/Water Interface Delineation Using Neural Networks., Rajabhushanam Cherukuri
Land/Water Interface Delineation Using Neural Networks., Rajabhushanam Cherukuri
LSU Historical Dissertations and Theses
The rapid decline in acreage of land areas in wetlands caused by frequent inundations and flooding has brought about an increased awareness and emphasis on the identification and inventory of land and water areas. This dissertation evaluates three classification methods--Normalized Difference Vegetation Index technique, Artificial Neural Networks, and Maximum-Likelihood classifier for the delineation of land/water interface conditions using Landsat-TM imagery. The effects of three scaling algorithms, including resampling by aggregation, Gaussian smoothing, and local variance analysis, on the classification accuracy are analyzed to determine how the delineation, quantification and analysis of land/water boundaries relate to problems of mixed pixels, scale …
A Search For Biologically Active Phytochemicals From Endemic Plants Of The Southeastern United States., Steven Lynn Robbs
A Search For Biologically Active Phytochemicals From Endemic Plants Of The Southeastern United States., Steven Lynn Robbs
LSU Historical Dissertations and Theses
In an investigation of allelopathy in the Florida scrub, bioassays with terpenes were performed against: Lactuca sativa, Rudbeckia hirta, Leptochloa dubia and Schizachyrium scoparium. Cineole was phytotoxic against Rudbeckia at 17 ppm and Lactuca at 165 ppm. (S)-camphor was phytotoxic to Rudbeckia at 1 ppm, Lactuca at 28 ppm, and Leptochloa and Schizachyrium at 134 ppm. (R)-Camphor, myrtenol and myrtenal were phytotoxic against Rudbeckia at concentrations of 28, 25 and 15 ppm respectively. Farnesol stimulated the germination of Schizachyrium at concentrations up to 50 ppm and at 100 ppm it reduced the radicle length of all test species. Geraniol stimulated …
The Use Of Secondarily Treated Wastewater Effluent For Forested Wetland Restoration In A Subsiding Coastal Zone., John M. Rybczyk
The Use Of Secondarily Treated Wastewater Effluent For Forested Wetland Restoration In A Subsiding Coastal Zone., John M. Rybczyk
LSU Historical Dissertations and Theses
Insufficient sedimentation, coupled with high rates of relative sea-level rise (RSLR), are two important factors contributing to wetland loss in coastal Louisiana. I hypothesized that adding nutrient rich, secondarily treated, wastewater effluent to subsiding coastal wetlands in Louisiana could promote vertical accretion in these systems through increased organic matter production and subsequent deposition, and allow accretion to keep pace with estimated rates of RSLR (subsidence plus eustatic sea-level rise). To test this hypothesis, I measured processes affecting wetland elevation including, organic matter decomposition, sediment accretion, aboveground primary production, and, plant tissue nutrient (N, P, K, Ca, Mg, Fe) concentrations, in …
The Radioresistance Of Deinococcus Radiodurans., Valerie Mattimore
The Radioresistance Of Deinococcus Radiodurans., Valerie Mattimore
LSU Historical Dissertations and Theses
Deinococcus radiodurans is a remarkably ionizing radiation resistant bacterium. As a vegetative cell it is capable of withstanding 5,000 Gy ionizing radiation without evidence of death or mutation. D. radiodurans survives irradiation by repairing DNA damage via an extremely efficient DNA repair system. However, this DNA repair system has not been completely defined. In addition, the selective process allowing the evolution of high level radioresistance has remained a question. This dissertation bolsters the understanding of the DNA repair system of D. radiodurans by characterizing a collection of ionizing radiation sensitive (IRS) mutants. The level of radioresistance is quantified and transformation …
Effects Of Predator Reduction On The Survival And Movements Of Northern Shoveler Broods, John M. Zimmer
Effects Of Predator Reduction On The Survival And Movements Of Northern Shoveler Broods, John M. Zimmer
LSU Historical Dissertations and Theses
I studied the effects of predator removal on survival and movements of Northern Shoveler (Anas clypeata) broods in the prairie pothole region of North Dakota. The study was conducted from April through August 1995. No treatment effects were found on brood survival as both 14 and 30 day survival estimates were statistically equivalent. Experimental sites had higher brood and duckling survival and produced twice as many fledglings per successful nest than control sites. Cumulative movement distance had no effect on duckling survival. While survival rates of Northern Shoveler broods and ducklings were higher than most species of prairie nesting ducks, …
An Examination Of The Effects Of The Mother's Education And Household Exposure To Disease On Childhood Diarrheal Morbidity In Sudan., Dawood Hussein Sultan
An Examination Of The Effects Of The Mother's Education And Household Exposure To Disease On Childhood Diarrheal Morbidity In Sudan., Dawood Hussein Sultan
LSU Historical Dissertations and Theses
This dissertation examines the effect of increases in the mother's level of education on the likelihood of diarrheal morbidity among Sudanese children aged 6 to 23 months. Maximum likelihood logistic regression models are used in the analysis. The logit estimates obtained from these models revealed that children of mothers who are illiterate run on average more than 10 times the risk of diarrhea as that run by children to mothers with a senior secondary or higher education. Slight increases in the mother's education, as indicated by an incomplete primary school education, reduce the likelihood of diarrhea by more than 50%. …
Ecological Impacts Of Historic And Prehistoric Hurricanes On Horn Island, Mississippi, Kari Gathen
Ecological Impacts Of Historic And Prehistoric Hurricanes On Horn Island, Mississippi, Kari Gathen
LSU Historical Dissertations and Theses
Hurricanes play an important role in the ecology and geomorphology of the northern Gulf of Mexico coast. In order to study the impact of hurricanes on barrier island vegetation, the sedimentary and fossil pollen records taken from cores in three ponds on Horn Island, Mississippi were examined to establish a record of ecological and geomorphological disturbance on Horn Island. Surface samples taken from the bottom of 15 ponds and 3 lagoons, delineated as fresh or brackish according to salinity test results, provide the modern vegetational analog to compare with the fossil pollen record using a discriminant analysis. Discriminant analysis results …
Strategic Adaptation In The Banking Industry: An Exploration Of The Antecedents And Consequences Of Strategic Change Following Deregulation., Elton L. Scifres Jr
Strategic Adaptation In The Banking Industry: An Exploration Of The Antecedents And Consequences Of Strategic Change Following Deregulation., Elton L. Scifres Jr
LSU Historical Dissertations and Theses
This dissertation examined the antecedents and consequences of strategic change in the commercial banking industry between 1980 and 1987. Based on a review of the literature, a conceptual model was developed that predicted change would be influenced by two factors, adaptive forces and inertial forces. Adaptive forces include two factors that have been hypothesized to encourage change, prior performance and slack resources. Inertial forces include two factors sometimes thought to inhibit change, organizational size and age. Change outcomes were predicted to be influenced by degree of change and moderated by adaptive and inertial forces. Guided by previous theoretical and empirical …
Interactions Between Fusarium Oxysporum F. Sp. Lycopersici And Nonpathogenic Strains Of Fusarium Oxysporum., Monica Michelle Lear
Interactions Between Fusarium Oxysporum F. Sp. Lycopersici And Nonpathogenic Strains Of Fusarium Oxysporum., Monica Michelle Lear
LSU Historical Dissertations and Theses
Race 1 isolates collected from tomato roots were used to develop an orange mutant of Fusarium oxysporum f. sp. lycopersici (FOL) for use in competitive infection tests against nonpathogenic F. oxysporum isolates. Eighty one color mutants were induced by exposure to ultraviolet light. The mutant ORA-22 retained pathogenicity and growth habit similar to the wild-type. Preliminary competitive infection tests indicated differences within the nonpathogenic population in the ability to suppress or enhance infection by FOL orange mutant ORA-22. Four vegetative compatibility groups (VCGs) were tested to determine if competitive infection ability was associated with VCG designation. Results from these tests …
The Genetic Effects Of Forest Fragmentation On Amazonian Forest Birds., John Marshall Bates
The Genetic Effects Of Forest Fragmentation On Amazonian Forest Birds., John Marshall Bates
LSU Historical Dissertations and Theses
I present allozyme and mitochondrial DNA (mtDNA) data on the genetic structure of five species of Amazonian forest birds at two geographic scales. The five species, Glyphorynchus spirurus (family Dendrocolaptidae), Leptopogon amaurocephalus (Tyrannidae), Hypocnemis cantator, Myrmeciza hemimelaena, and Hylophylax poecilinota (all three Formicariidae), are common forest understory inhabitants throughout much of Amazonia. At the local geographic scale, I hypothesized that forest fragmentation affected genetic structure in these species. Study sites were in the Department of Santa Cruz, Bolivia. Six sites separated by 150 km or less for each species were sampled: three sites in continuous Amazonian forest, and three in …
Host Quality Of Baldcypress And Its Influence On Fruittree Leafroller, Archips Argyrospila (Walker) (Lepidoptera: Tortricidae), Performance In Forested Wetlands Of Louisiana., James R. Meeker
LSU Historical Dissertations and Theses
Ecological relationships between the fruittree leafroller (FTLR), (Archips argyrospila (Walker)) and a new host, baldcypress (Taxodium distichum (L.)), were investigated in southern Louisiana where persistent annual defoliation over increasingly larger areas has occurred since 1983. Defoliation was observed to correspond with common types of baldcypress foliage morphology; designated as open and appressed. Pondcypress, Shumard oak and citrus foliage also were examined. The objectives were to: (1) determine the relative suitability/susceptibility of foliage types, and (2) quantify parameters of foliage quality possibly influencing FTLR performance. Levels of defoliation, egg mass counts, and laboratory bioassays of: initial survival, host preference, growth, feeding, …