Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. / Source: Dissertation Abstracts International, Volume: 67-11, Section: B, page: 6270. Adviser: Feng Sheng Hu. Includes bibliographical references. Available on microfilm from Pro Quest Information and Learning.

Theses (M.S.)--Marshall University, 2007. / Title from document title page. Includes abstract. Document formatted into pages: contains ix, 193 pages. Includes vitae. Bibliography: p. 157-165.

Thesis (Ph. D.)--University of Chicago, 1919. / The verso of each plate contains letterpress descriptive of plate opposite. "Private edition, distributed by the University of Chicago Libraries, Chicago, Illinois." "Reprinted from Proceedings of the Indiana Academy of Science for 1919."

Thesis (M.S.)--Ohio State University, 1974. / Includes bibliographical references (leaves 50-55). Available online via OhioLINK's ETD Center

This study investigates the abundance and dispersal of pollen in an urban area with a view to making accurate predictions of daily pollen counts. Two-hourly pollen counts of more than 60 different pollen types have been recorded over four complete growing seasons in the heavily urbanized area of North London and this is interpreted in relation to meteorological conditions, local pollen source areas, topography and the urban morphology. The analysis and forecasting of airborne pollen concentrations has relevance within three subject areas. Hayfever sufferers are able to use the forecasts to avoid times of high pollen counts; and this is of particular importance as the incidence of allergic respiratory diseases is higher in urban than in rural areas, and the incidence is believed to be increasing. The research has relevance also for Quaternary palynologists as an increased understanding of modern day pollen dispersal can aid in the interpretation of fossil pollen stratigraphies, as well as to the dispersal of particulate pollutants in urban areas. An initial investigation of pollen abundance illuminates seasonal, daily and two-hourly variations in concentration which are examined in detail in relation to both past and present meteorological conditions. Three pollen taxa (Gramineae, Betula and Platanus) are selected for further analysis to develop various models which are able to predict average daily pollen concentrations of these taxa two or three days in advance. The forecasting models are based upon a multiple regressional analysis of pollen counts and twelve meteorological variables and attain levels of explanation approaching S6%. An attempt is made also to predict the severity of the Gramineae pollen season by examining the average daily temperatures in the months preceding the start of the season. This research is novel in the level of detail of the analysis of pollen concentrations as well as in attempting to predict pollen counts using a variety of methods, especially in the use of accumulated values of maximum daily temperature and sunshine hours.

This study attempts to show that cluster groupings of rock samples based on spore/pollen content in the Weald Clay represent particular palaeoenvironments.

This study investigates the variations in the start and severity of the grass and birch pollen seasons at a network of sites in the United Kingdom. Daily grass and birch pollen concentrations have been monitored during the course of the study (1992-1994) at the University of North London site. Retrospective pollen data of up to 30 years in length at London, Cardiff and Derby has been incorporated into the database, along with between 2 and 7 years of retrospective data from 7 other European Aeroallergen Network(UK) sites. Annual grass and birch pollen concentrations, start of season dates and seasonal severities have been identified and analysed in relation to meteorological conditions and local pollen source areas. Variations have been found at the individual sites from year to year, and between the different sites in the same year. Multiple regression analysis has been used on the long term data sets at London, Cardiff and Derby to produce forecast models to enable the prediction of the start of the season and total seasonal grass and birch pollen concentrations at the 3 sites. Data from the other EAN(UK) sites has been incorporated into these models to assess their use on a regional basis. This research has relevance within many subject areas. The long term data sets on which a large part of the thesis is based are of great interest to Aerobiologists in the identification of long term trends in pollen data. The research has relevance to Quaternary palynologists interested in the influence of the source area on the pollen catch. The influence of climate on the seasonal variation of grass species will be of interest to Agriculturalists, Ecologists and Biogeographers. Finally, through the accurate forecasting of the start and severity of the grass and birch pollen seasons, hayfever sufferers are able to have increased knowledge, and therefore may be able to avoid the amount of medical consultation required by means of prophylactic treatment. The research is unique in that it is the first study to be conducted on the UK pollen databank. It is also unique research in that data sets of this length do not exist anywhere else in Europe and probably the world, and therefore this study poses an important piece of research both on a national and an international level.

This thesis presents the results of a research project designed to reconstruct the Holocene vegetation history of eastern Liguria. The study area lies within the northern Apennines, a region from which few detailed late Quaternary palaeoenvironmental records had boon published and prior to this study no radiocarbon-dated pollen profiles had been reported. Presented hare are the results of pollen-stratigraphical investigations (including pollen concentration and pollen preservation data) from six Holocene peat sites, augmented by twelve radiocarbon dates. The data provide a first regional assessment of the mid- and late Holocene vegetation succession in Liguria as well as a detailed examination of the problems of sampling and interpretation encountered. The sites are situated at a range of altitudes between 831 m to 1481 m and consist of both infilled basins within drift deposits as well as shallow shelf sites. However most of the peat sequences began to form only 4000 to 5000 years ago. At three sites there are strong indications that peat formation only occurred after major disruption of local soils which locally may have been initiated by human (Chalcolithic) forest disturbances. Nevertheless there is also a lack of known early Holocene peat or lake sediments in much of northwestern Italy suggesting widespread climatic conditions inimical to peat development during that period. The biostratigraphical data indicate that Abies forests were common at altitudes of over 1000 a during the mid-Holocene but these declined from approximately 2000 BP and subsequently, woodlands were dominated by Fagus. Certain types suggest that these changes in forest composition could have been related to human activity, although forest clearance appears to have been restricted. The evidence overall suggests that there was major disruption of local soils during the mid- and late Holocene and it is suggested, therefore, that changes in soil moisture regimes possibly as a result of human disturbance, may have led to permanent changes in the vegetation cover.

Made available in DSpace on 2014-06-11T19:26:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-08-27Bitstream added on 2014-06-13T18:54:22Z : No. of bitstreams: 1 moreno_dp_me_rcla.pdf: 6331695 bytes, checksum: 36e506a655304083ae4349db9d6fe261 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / O presente trabalho tem a finalidade de estudar a distribuição dos foraminíferos no estuário do Rio Itapanhaú, Bertioga, São Paulo, objetivando em contribuir com o conhecimento de tal comunidade dentro do estuário. As águas intersticiais das lamas desse estuário, tiveram, em março de 2003, valores de salinidade variando de 30,5 a 2 e pH oscilando entre 7,54 e 4,62. A abundante microfauna de foraminíferos é representada por 27 gêneros e 29 espécies, sendo amplamente dominada por textulariinos (23 espécies). O Rio Itapanhaú foi dividido em cinco biofácies baseado nas espécies dominantes e subdominantes de foraminíferos: Biofácies I (Ammonia spp./Elphidium spp.); Biofácies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata) e Biofácies III (H. wilberti/Milimammina fusca/A. mexicana); Biofácies IV (M.fusca/H. wilberti/A. mexicana), com valores de salinidade abaixo de 12, e Biofácies V (Miliammina fusca). No médio e alto estuário a diversidade e equitatividade de foraminíferos alcançam seus menores valores, refletindo o estresse desta comunidade ao grande volume de água doce. Miliammina fusca tem sua abundância gradativamente aumentada em direção à montante do estuário, associando-se a bancos de lama colonizados sucessivamente por vegetação de Spartina sp. Crinum sp. e Scirpus sp. A diversidade e equitatividade da comunidade de foraminíferos próxima ao oceano apresentam maiores valores. Relações biofaciológicas e fitofaciológicas permitem ver que enquanto o baixo estuário possui apenas uma fitofácies, segmentada em biofácies I, II, III e IV. Já no médio e alto estuário a situação é invertida, havendo praticamente apenas uma única biofácies de foraminíferos (Biofácies V). As biofácies de foraminíferos aqui reconhecida podem auxiliar estudos paleoecológicos e palegeográficos e compreender a evolução da flora estuarina bem como a hidrodinâmica do estuário. / This work has the purpose to study the foraminiferal zonation along the estuary of the Itapanhaú River, Bertioga, São Paulo, with the main goal to increase the knowledge of the foraminiferal community in the estuarine system. The interstitial water in the mud of this estuary, Bertioga-São Paulo, as well as the main channel s, had, in March 2003, salinity values between 30, 5 and 2 and pH between 7.54 and 4.62. The foraminifera microfauna is comprised by 27 genus and 29 species, where the Textulariina is the dominant suborder along the estuary. The Itapanhaú River has been divided in five biofacies based in foraminifera dominant and subdominant species: Biofacies I (Ammonia spp./Elphidium spp.); Biofacies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata); Biofácies III (Haplophragmoides wilberti/Miliammina fusca/A. mexicana); Biofacies IV (M. fusca/ H. wilberti/A. mexicana) with a salinity under 12 and Biofacies V (Miliammina fusca). In the middle and high estuary the diversity and equitability of the foraminiferal community show lower values, reflecting the stress of the system. Miliammina fusca has its abundance gradually increased in the direction of the spring of the river, associating itself to mud banks successively colonized by Spartina sp. Crinum sp. and Scirpus sp. vegetation. The diversity and equitability of the foraminiferal community increases at the low estuary near the ocean. The relationship between biofacies and phytofacies permits to conclude that there are four biofacies to one phytofacies in the low estuary of the Itapanhaú River. On the other hand, at the high estuary, there are four phytofacies to basically one biofacies nearly the exactly the opposite feature found in the low one. The biofacies zonation of this study might be useful on paleoecological and paleogeographical studies to understand the evolution of the plant estuarine community and also to the hydrodynamic knowledge of the system.

Orientador: Dimas Dias Brito / Banca: Antonio Fernando Monteiro Camargo / Banca: Beatriz Beck Eichler / Resumo: O presente trabalho tem a finalidade de estudar a distribuição dos foraminíferos no estuário do Rio Itapanhaú, Bertioga, São Paulo, objetivando em contribuir com o conhecimento de tal comunidade dentro do estuário. As águas intersticiais das lamas desse estuário, tiveram, em março de 2003, valores de salinidade variando de 30,5 a 2 e pH oscilando entre 7,54 e 4,62. A abundante microfauna de foraminíferos é representada por 27 gêneros e 29 espécies, sendo amplamente dominada por textulariinos (23 espécies). O Rio Itapanhaú foi dividido em cinco biofácies baseado nas espécies dominantes e subdominantes de foraminíferos: Biofácies I (Ammonia spp./Elphidium spp.); Biofácies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata) e Biofácies III (H. wilberti/Milimammina fusca/A. mexicana); Biofácies IV (M.fusca/H. wilberti/A. mexicana), com valores de salinidade abaixo de 12, e Biofácies V (Miliammina fusca). No médio e alto estuário a diversidade e equitatividade de foraminíferos alcançam seus menores valores, refletindo o estresse desta comunidade ao grande volume de água doce. Miliammina fusca tem sua abundância gradativamente aumentada em direção à montante do estuário, associando-se a bancos de lama colonizados sucessivamente por vegetação de Spartina sp. Crinum sp. e Scirpus sp. A diversidade e equitatividade da comunidade de foraminíferos próxima ao oceano apresentam maiores valores. Relações biofaciológicas e fitofaciológicas permitem ver que enquanto o baixo estuário possui apenas uma fitofácies, segmentada em biofácies I, II, III e IV. Já no médio e alto estuário a situação é invertida, havendo praticamente apenas uma única biofácies de foraminíferos (Biofácies V). As biofácies de foraminíferos aqui reconhecida podem auxiliar estudos paleoecológicos e palegeográficos e compreender a evolução da flora estuarina bem como a hidrodinâmica do estuário. / Abstract: This work has the purpose to study the foraminiferal zonation along the estuary of the Itapanhaú River, Bertioga, São Paulo, with the main goal to increase the knowledge of the foraminiferal community in the estuarine system. The interstitial water in the mud of this estuary, Bertioga-São Paulo, as well as the main channel’s, had, in March 2003, salinity values between 30, 5 and 2 and pH between 7.54 and 4.62. The foraminifera microfauna is comprised by 27 genus and 29 species, where the Textulariina is the dominant suborder along the estuary. The Itapanhaú River has been divided in five biofacies based in foraminifera dominant and subdominant species: Biofacies I (Ammonia spp./Elphidium spp.); Biofacies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata); Biofácies III (Haplophragmoides wilberti/Miliammina fusca/A. mexicana); Biofacies IV (M. fusca/ H. wilberti/A. mexicana) with a salinity under 12 and Biofacies V (Miliammina fusca). In the middle and high estuary the diversity and equitability of the foraminiferal community show lower values, reflecting the stress of the system. Miliammina fusca has its abundance gradually increased in the direction of the spring of the river, associating itself to mud banks successively colonized by Spartina sp. Crinum sp. and Scirpus sp. vegetation. The diversity and equitability of the foraminiferal community increases at the low estuary near the ocean. The relationship between biofacies and phytofacies permits to conclude that there are four biofacies to one phytofacies in the low estuary of the Itapanhaú River. On the other hand, at the high estuary, there are four phytofacies to basically one biofacies nearly the exactly the opposite feature found in the low one. The biofacies zonation of this study might be useful on paleoecological and paleogeographical studies to understand the evolution of the plant estuarine community and also to the hydrodynamic knowledge of the system. / Mestre