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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

A study on an altitudinal gradient investigating the potential effects of climate change on Fynbos and the Fynbos-succulent Karoo boundary /

Agenbag, Lize. January 2006 (has links)
Thesis (MSc)--University of Stellenbosch, 2006. / Bibliography. Also available via the Internet.
32

Οικολογική αξιολόγηση της χλωρίδας και βλάστησης της χερσονήσου των Μεθάνων

Κουγιουμουτζής, Κωνσταντίνος 01 November 2010 (has links)
Η χερσόνησος των Μεθάνων ανήκει στο ηφαιστειακό τόξο του Νοτίου Αιγαίου και αποτελείται κυρίως από ηφαιστειακά πετρώματα ενώ μόνο το νότιο τμήμα της ειναι καθαρά ασβεστολιθικό. Εμφανίζει πλούσια χλωρίδα, καθώς εντοπίστηκαν 75 οικογένειες, 316 γένη και 621 taxa, εκ των οποίων 378 αποτελούν νέες αναφορές, 38 χαρακτηρίζονται ως ενδημικά και 102 ως προστατευόμενα. Για 3 taxa (Crocus sieberi subsp. atticus, Trigonella rechingeri και Brassica cretica subsp. aegea), με την ανεύρεση τους στα Μέθανα, επεκτείνεται η περιοχή εξάπλωσής τους. Κυριαρχούν τα θερόφυτα και τα στενό- και ευρύ-μεσογειακά στοιχεία. Από τις φυτογεωγραφικές συσχετίσεις με νησιά του ηφαιστειακού τόξου του Νοτίου Αιγαίου, καθώς και με νησιά του Ιονίου και του Δυτικού Αιγαίου, βρέθηκε οτι η χερσόνησος των Μεθάνων παρουσιάζει στενότερη χλωριδική συγγένεια με τις Δυτικές Κυκλάδες. Αναγνωρίστηκαν 20 τύποι οικοτόπων, ενώ βρέθηκε οτι η οικολογική διαδοχή στην χερσόνησο των Μεθάνων εμπίπτει στο γενικευμένο μοντέλο της οικολογικής διαδοχής στις πρόσφατα δημιουργηθείσες ηφαιστειακές περιοχές. / Methana peninsula belongs to the South Aegean Volcanic Arc and is constituted mainly of volcanic rocks and only its southern part is calcareous. Methana's peninsular rich flora is comprised by 75 families, 316 genera and 621 taxa, 378 of which are new references, 38 endemics and 102 under protection status. For three taxa (Crocus sieberi subsp. atticus, Trigonella rechingeri και Brassica cretica subsp. aegea), by finding them on Methana peninsula, their distribution area is expanded. The therophytes and the Steno- and Eury-Mediterranean elements prevail. From the phytogeographic correlations with the islands of the South Aegean Volcanic Arc, as well as with some Ionian and West Aegean islands, Methana peninsula is found to have the highest floristic affinities with the Western Kikladhes complex. 20 habitat types were recognised and it was found that the ecological succession on Methana peninsula follows the generalised model of the ecological succession on recently created volcanic areas.
33

Phylogeny, Phytogeography, and Taxonomy of Polar Oscillatoriales / Phylogeny, Phytogeography, and Taxonomy of Polar Oscillatoriales

STRUNECKÝ, Otakar January 2012 (has links)
Morphological and phylogenetic diversity of 143 strains belonging to Oscillatoriales with focuson traditional genera Phormidium sensu lato and Microcoleus were studied. The 88 strains of Ph. autumnale, Ph. setchelianum, Ph. subfuscum, Ph. favosum etc., and M. vaginatus confirmed the generic identity with typical Microcoleus Desmazi?res ex Gomont. The necessary nomenclatoric transfers were realized defining the revised genus Microcoleus. Based on phylogeny and morphology the taxonomic revision of the Antarctic species Ph. murrayi (Lyngbya murray West & West) was implemented and the genus Wilmottia was established. The phylogenetic evaluation of morpho-species included in Phormidium group I (Ph. lloydianum and Ph. acuminatum Gomont) preceded the definition of species Oxynema thaianum spec. nova. The biogeography of Antarctic and Arctic strains of M. vaginatus (Ph. autumnale) based on 16S rDNA and ITS (internal transcribed spacer of the 16S rDNA -23SrDNA ribosomal operon) sequences and strain's morphology was evaluated. The comparison of polar and non-polar strains indicated that the Antarctic populations of M. vaginatus remained isolated from time of the isolation of the Antarctica from the Gondwana before ~31?45 Ma, whereas the transport of populations within Arctic is relatively frequent even at the present time. It was shown that the polar strains of M. vaginatus from the north and south polar areas were not identical.
34

Geobotânica por sensoriamento remoto : avaliação do método para a identificação de exsudações potenciais na Bacia do Solimões utilizando dados TERRA/ASTER / Geobotanical remote sensing : evaluation of the method for identifying potential seepages in the Solimões Basin using ASTER data

Mendes, Flávia de Souza, 1988- 27 August 2018 (has links)
Orientadores: Carlos Roberto de Souza Filho, Teodoro Isnard Ribeiro de Almeida / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências / Made available in DSpace on 2018-08-27T04:56:23Z (GMT). No. of bitstreams: 1 Mendes_FlaviadeSouza_M.pdf: 5269852 bytes, checksum: 0be9abefcbc67126f66ebf021764a23e (MD5) Previous issue date: 2014 / Resumo: A geobotânica estuda a associação da geologia às variações abruptas ou graduais na estrutura, na florística, na fisiologia ou fenologia das comunidades vegetais. A utilização da geobotânica como um método de prospecção petrolífera teve um ganho significativo com a inclusão do uso das imagens de satélite. Os sistemas petrolíferos não são selados e permitem o escape de hidrocarbonetos (HCs) na forma de óleo ou gases. Estas exsudações em contato com solo e com a vegetação provocam alterações potencialmente identificáveis através de imagens de satélite. O presente trabalho visa analisar a aplicabilidade da Geobotânica por Sensoriamento Remoto para inferência de áreas com escapes de HCs na bacia do Solimões. Para tanto, foi utilizada imagem do sensor ASTER e dados de geoquimica de hidrocarbonetos (gasometria). Primeiramente, os dados de gasometria foram processados através do método inverso da distância ponderada, visando a geração de superfícies geoquímicas contínuas. As imagens do sensor ASTER foram processadas por técnicas digitais para a identificação de áreas de vegetação espectralmente distintas. Essa fase metodológica envolveu: (i) o cálculo de 6 índices de vegetação; (ii) a análise do comportamento espectral dos pixels localizados em áreas com as maiores e menores concentrações de HCs e aplicação de Análise por Principais Componentes (APC) sobre bandas ASTER com maior possibilidade de discriminação de áreas espectral e geoquimicamente anômalas; (iii) geração de índices espectrais (pseudo-razões) para realce de características específicas da vegetação e a aplicação da APC sobre estes índices; (iv) extração da drenagem utilizando o Shuttle Radar Topography Mission (SRTM). As imagens resultantes do processamento digital foram confrontadas com os mapas interpolados dos dados de gasometria. O objetivo foi analisar se as anomalias geobotânicas encontradas nos produtos obtidos com a imagem ASTER têm alguma correlação espacial com as áreas mais ricas em HCs, evidenciadas pela geoquímica. Para esta análise, foi utilizado o parâmetro geoquímico Y0. A análise em relação a esse parâmetro foi favorecida, pois o Y0 é calculado com base em gases mais pesados e relacionados à presença de HCs de origem termogênica. Também foi o parâmetro que apresentou um maior intervalo entre classes e com valores mais altos distribuídos espacialmente; incluindo valores extremos contidos no polígono limítrofe do Campo de Gás do Juruá. Os produtos obtidos do processamento digital indicaram um padrão comum, destacando setores de vegetação espectralmente distintas no setor leste da área de estudo. A imagem que melhor ressaltou este padrão foi a PC2 das 8 pseudo-razões do sensor ASTER. Em função dessas qualidades, o mapa interpolado do parâmetro Y0 e essa PC2 foram integrados. Os sitios de vegetação que apresentaram comportamento espectralmente distintos coincidem em 45% com setores onde os valores de Y0 (e portanto HCs) são maiores. Os dados geoquímicos e a geração dos mapas dos índices interpolados possibilitaram a validação das áreas espectralmente anômalas realçadas nos produtos ASTER. Foi possível observar que algumas das anomalias espectrais encontradas nas imagens ASTER estão contidas na área de influência das exsudações de HCs de origem termogênica identificadas pelos dados geoquímicos / Abstract: Geobotanic studies the association of geology to abrupt or gradual changes in the structure, floristic, physiology or phenology of plant communities. The use of Geobotanic as a method for hydrocarbon exploration has had a significant gain with the use of satellite images. The petroleum systems are not completely sealed and allow fluids to escape in the form of oil or light gases, forming seepages. Seepages products, yielded by the interaction between hydrocarbons with soil and vegetation, can be identified by satellite imagery. This work aims to analyze the applicability of Geobotanical Remote Sensing to identify areas with hydrocarbon seepage in the Solimões Basin. An ASTER image and soil geochemical data (gasometry) was used. The first part of the methodology comprised the interpolation of three types of geochemical maps of light hydrocarbons using the inverse distance weighted method. Subsequently, different digital image processing techniques were used to identify areas of spectrally distinct vegetation in the ASTER data, including: i) generation of 6 vegetation indices; ii) analysis of the spectral behavior of pixels located in areas with the highest and lowest concentrations of hydrocarbons, given by gasometry; iii) application of Principal Component Analysis (PCA) on ASTER imagery using bands and spectral indexes more prone for spectral discrimination of geochemically anomalous areas; iv) extraction of drainage patterns using Shuttle Radar Topography Mission (SRTM) altimetric data. For this analysis, we used the geochemical parameter Y0. The analysis for this parameter was favored because the Y0 is calculated on the basis of heavier gases and related to the presence of thermogenic HCs. It was also the parameter that showed a greater range of classes and with higher values spatially distributed, including extreme values within the Jurua Gas Field. The products obtained from digital processing indicated a common pattern, highlighting spectrally different vegetation sectors in the eastern portion of the study area. The image that best highlighted this pattern was the PC2 extracted from 8 ASTER pseudo-ratios. Considering their properties, the interpolated map of the Y0 parameter and the PC2 were spatially integrated. The vegetation sites that showed spectrally different behaviors coincide 47% with sectors where Y0 values (and hence HCs) are higher. The geochemical data and the generation of maps of interpolated indices allowed the validation of spectrally anomalous areas highlighted in the ASTER products. Some of the spectral anomalies found in the ASTER images are contained in the area of influence of thermogenic HCs identified by geochemical data / Mestrado / Geologia e Recursos Naturais / Mestra em Geociências
35

A New Species of Rhodoleia (Hamamelidaceae) From the Upper Pliocene of West Yunnan, China and Comments on Phytogeography and Insect Herbivory

Wu, Jingyu, Zhao, Zhenrui, Li, Qijia, Liu, Yusheng, Xie, Sanping, Ding, Suting, Sun, Bainian 01 October 2015 (has links)
In Europe, fossil fruits and seeds of Rhodoleia (Hamamelidaceae) have been described from the Upper Cretaceous to the Miocene, whereas no fossil record of Rhodoleia has been reported in Asia, where the modern species occur. Herein, 21 fossil leaves identified as Rhodoleia tengchongensis sp. nov. are described from the Upper Pliocene of Tengchong County, Yunnan Province, Southwest China. The fossils exhibit elliptic lamina with entire margins, simple brochidodromous major secondary veins, mixed percurrent intercostal tertiary veins, and looped exterior tertiaries. The leaf cuticle is characterized by pentagonal or hexagonal cells, stellate multicellular trichomes, and paracytic stomata. The combination of leaf architecture and cuticular characteristics suggests that the fossil leaves should be classified into the genus Rhodoleia. The fossil distributions indicate that the genus Rhodoleia might originate from Central Europe, and that migrated to Asia prior to the Late Pliocene. Additionally, insect damage is investigated, and different types of damage, such as hole feeding, margin feeding, surface feeding, and galling, are observed on the thirteen fossil leaves. Based on the damage frequencies for the fossil and extant leaves, the specific feeding behavior of insects on Rhodoleia trees appears to have been established as early as the Late Pliocene. The high occurrence of Rhodoleia insect herbivory may attract the insect-foraging birds, thereby increasing the probability of pollination.
36

Botanická zahrada Teplice a její využití při výuce na střední škole / The Botanical Garden Teplice and its Use in Education at High School

Frolík, Svatopluk January 2019 (has links)
The main aim of the thesis was to create functional and practical worksheets that would be used on excursions by secondary school students to the Botanical Garden Teplice. Based on a study of secondary school textbooks, questions were created that repeated subject matter taught at the school, but also expanded it. The questions were incorporated into three types of worksheets dealing with phytogeography, outdoor exhibits and greenhouse exhibits. Guides were created for each type of worksheet to help the person accompanying students, who can be both an employee of the Botanical Garden or a teacher. The test versions of the worksheets were tried out on 131 students from four secondary schools during field trips. The results obtained by completing the worksheets were analysed to identify the shortcomings of questions. This and substantive comments by the supervisor led to an amendment of the questions that required it, resulting in the final version of the worksheets to be used for educational activities at the Botanical Garden Teplice. Keywords Worksheets, phytogeography, Botanical Garden Teplice, guide.
37

Florística, estrutura e mapeamento da vegetação de caatinga da Estação Ecológica de Aiuaba, Ceará / Floristics, structure and mapping of caatinga vegetation of Aiuaba Ecological Station, Ceará state

Lemos, Jesus Rodrigues 30 March 2006 (has links)
A caatinga foi reconhecida recentemente como uma das 37 grandes regiões naturais do planeta. De um modo geral, tem sido descrita na literatura como pobre, possuindo baixo valor para fins de conservação. Talvez devido a este fato, a caatinga seja o bioma brasileiro mais desvalorizado e menos conhecido botanicamente, permanecendo como um dos mais desconhecidos na América do Sul do ponto de vista científico. Neste contexto, é preemente a necessidade da ampliação do conhecimento sobre a distribuição de organismos e a forma como eles estão organizados em comunidades na caatinga. No Estado do Ceará, a caatinga é a unidade fito-ecológica mais representativa espacialmente, abrangendo aproximadamente 72.980 Km2 e apesar da grande abrangência espacial da caatinga, pouco se conhece ainda sobre seus padrões de comunidades vegetais no Estado. Assim, este trabalho objetivou contribuir com a ampliação do conhecimento sobre a caatinga, investigando a flora e estrutura, bem como realizando o mapeamento orbital das fisionomias existentes na vegetação da Estação Ecológica (EE) de Aiuaba, Ceará. Esta é uma área considerada, pelo Programa Nacional da Biodiversidade/PROBIO, de Alta Importância Biológica no estado do Ceará. Foram realizadas coletas botânicas mensais, aleatórias, no período de outubro/2003 a fevereiro/2005, de ervas, subarbustos, arbustos, árvores, epífitas e lianas. A coleção botânica encontra-se depositada no acervo dos Herbários SPF, EAC, HUVA, IPA e K. No levantamento florístico foram coletados 183 espécimes, pertencentes a 47 famílias, 113 gêneros e 161 espécies. Deste total, dois táxons estão sendo propostos como espécies novas para a ciência. As famílias mais ricas em termos específicos foram Leguminosae, Euphorbiaceae, Bignoniaceae, Convolvulaceae, Acanthaceae e Asteraceae, as quais responderam por 51,5% do total das espécies. O maior índice de similaridade de Sørensen (IS) verificado entre a área de estudo e outros levantamentos realizados em diferentes estados do Nordeste brasileiro foi de 23,33%. Algumas espécies registradas na EE apresentam distribuição em todo o semi-árido nordestino, com algumas ocorrendo em outros estados brasileiros e até em outros países da América do Sul. Para o estudo fitossociológico, foram alocadas através de sorteio, 50 parcelas de 10 x 10 m em uma área de 1,5 ha. Foram medidos os caules de todos os indivíduos lenhosos vivos ou mortos ainda em \"pé\", inclusive cipós, que se individualizassem ao nível do solo e que atendessem aos seguintes critérios: Diâmetro ao Nível do Solo (DNS) >= 3 cm e altura total (AT) >= 1 m. Foram amostrados 3.007 indivíduos distribuídos em 47 espécies e 21 famílias. Leguminosae, Euphorbiaceae, Erythroxylaceae, Acanthaceae, Bignoniaceae e Rutaceae responderam por 65,9% das espécies e as três primeiras totalizaram 62,97% do valor de importância total. Croton floribundus (Euphorbiaceae), Piptadenia moniliformis (Leg. Mimosoideae), Erythroxylum caatingae (Erythroxylaceae) e Bauhinia cheilantha (Leg. Caesalpinioideae) tiveram os maiores valores de importância. As alturas e os diâmetros médios e máximos foram 4,51 e 13 m e 7,28 e 44,88 cm, constatando-se tratar de um trecho de caatinga cuja maioria dos indivíduos concentra-se no estrato inferior a 5 m de altura, com algumas espécies emergentes. O uso de imagens CBERS-2 e dados de campo proporcionaram a elaboração de um mapa da vegetação da EE de Aiuaba. Através de processamento de imagens, utilizando o Normal Difference Vegetation Índex (NDVI), foi produzido um mapa vegetacional. Foram diagnosticadas três fisionomias vegetacionais, havendo predomínio de caatinga arbustiva-arbórea alta aberta. A importância deste estudo está nas informações básicas acerca do estado atual da vegetação, vindo a fornecer subsídio para estudos futuros relacionados à compreensão e previsão de mudanças no padrão de distribuição das comunidades vegetais, bem como possibilitar a efetivação de investigações mais detalhadas. No aspecto geral, este estudo gerou informações acerca da diversidade biológica e ambiental da EE de Aiuaba. Informações como estas são fundamentais para o entendimento da evolução, da ecologia e da conservação de uma biota, vindo a fornecer suporte às decisões governamentais nas áreas de proteção ambiental, bem como no manejo das mesmas / Caatinga was recently recognized as one of the 37 great natural regions of the planet. In general, it has been described in literature as poor, having little value for conservation purposes. Perhaps due to this fact, caatinga may be the most devalued and least botanically recognized Brazilian biome, remaining as one of the most unknown in South America from a scientific point of view. In this context, the need for broadening knowledge about the distribution of organisms and the way they are organized into communities in caatinga is predominant. In the state of Ceará, caatinga is the most spatially representative phyto-ecological unit, covering approximately 72,980 Km2 and despite the great spatial coverage of caatinga, little is yet known about its patterns of vegetal communities in the State. Therefore, this study aims to contribute to the broadening of knowledge about caatinga, investigating the flora and structure, as well as carrying out the orbital mapping of the existing physiognomies in the vegetation of the Estação Ecológica (EE) in Aiuaba, Ceará state. This is an area considered, by the National Biodiversity Program/PROBIO, to be of High Biological Importance in the state of Ceará. Random monthly botanical collections were carried out, in the period from October/2003 to February/2005, of herbs, subshrubs, shrubs, trees, epiphytes and lianas. The botanic collection is to be found deposited in the SPF, EAC, HUVA, IPA and K Herbarium collections. In the floristic survey 183 specimens were collected, belonging to 47 families, 113 genera and 161 species. From this total, two taxa are being proposed as new species for science. The richest families in specific terms were Leguminosae, Euphorbiaceae, Bignoniaceae, Convolvulaceae, Acanthaceae and Asteraceae, which corresponded to 51.5% of the species total. The highest Sørensen\'s Similarity Index (IS) rate verified between the study area and other surveys carried out in different states of the Brazilian Northeast was 23.33%. Some species registered in the EE present a distribution throughout the northeastern semi-arid area, with some occurring in other Brazilian states and even in other South American countries. For the phyto-sociological study, 50 plots of 10 x 10m in an area of 1.5ha were assigned, by means of a draw. The stems of all living or dead but still \"standing\" woody organisms were measured, including lianas, which might become distinct at ground level and which might observe the following criteria: Diameter at Ground Level (DNS) >= 3cm and Total Height (AT) >= 1m. Three thousand and seven organisms were sampled distributed into 47 species and 21 families. Leguminosae, Euphorbiaceae, Erythroxylaceae, Acanthaceae, Bignoniaceae and Rutaceae corresponded to 65.9% of the species and the first three totaled 62.97% of the total importance value. Croton floribundus (Euphorbiaceae), Piptadenia moniliformis (Leg. Mimosoideae), Erythroxylum caatingae (Erythroxylaceae) and Bauhinia cheilantha (Leg. Caesalpinioideae) had the greatest importance values. The average and maximum heights and diameters were 4.51 and 13m and 7.28 and 44.88cm, proving that deals with a stretch of caatinga where the majority of organisms are concentrated in the stratum of less than 5m in height, with some emergent species. The use of CBERS-2 images and field data provided the elaboration of a vegetation map at the EE in Aiuaba. Through the processing of images, using the Normal Difference Vegetation Index (NDVI), a vegetation map was produced. Three vegetational physiognomies were diagnosed, with a predominance of tall open shrubby-arboreal scrub. The importance of this study is in the basic information regarding the current state of vegetation, providing assistance for future studies related to the understanding and forecast of changes in the distribution pattern of vegetal communities, as well as enabling the effectuation of more detailed investigations. In a general aspect, this study generated information about the biological and environmental diversity of the EE in Aiuaba. Information like this is fundamental for the understanding of evolution, ecology and the conservation of a biota, providing support for governmental decisions in areas of environmental protection, as well as in the management of them
38

A morada dos Wapixana: Atlas toponímico da região indígena da Serra da Lua - RR / The homeland of the Wapixana: toponymic atlas of Serra da Lua indigenous region (state of Roraima, Brazil)

Carneiro, João Paulo Jeannine Andrade 08 February 2008 (has links)
A morada dos Wapixana (Arawak) são os campos do nordeste do estado de Roraima. Em sua porção sudeste encontramos a região indígena da Serra da Lua, composta por 17 malocas indígenas com 5.000 Wapixana. Desenvolvemos esta pesquisa por meio da análise toponímica (Dick, 1980, 1999) e etnolingüística (Potier, 1970) das malocas e das paisagens vegetais da região. Objetivamos, desta forma, detalhar a realidade toponímica em suas características denominativas, no conjunto de mapas taxionômicos, dialetológicos, além de um fitogeográfico com os termos em Wapixana. Com isso, procuramos obter a cosmovisão do grupo denominador. Para tanto, dividimos este trabalho em três partes: os fundamentos teóricos; aspectos histórico-geográficos e etnolingüísticos dos campos do Rio Branco; e por último a análise das motivações toponímicas. O resultado das análises demonstrou que os campos ora citados, são frutos da geografia mítica Wapixana, bem como as taxionomias toponímicas preponderantes são os zootopônimos e fitotopônimos. Identificamos três camadas dialetológicas na região: a mais antiga de origem Wapixana;. a segunda, também de origem ameríndia, porém exógena à área de pesquisa, são os nomes de origem Tupi, provindos da Língua Geral Amazônica; e finalmente a portuguesa. / The homeland of the Wapixana (Arawak) are the fields at the northeast region of the state of Roraima. In its southwest portion we find the indigenous region of Serra da Lua, composed by 17 indigenous hamlets, inhabited by 5000 Wapixana. This research was developed through the toponymic (Dick, 1980, 1999) and etnolinguistical (Potier, 1970) of the hamlets and the regional vegetation landscapes. It\'s goal is to detail the toponymic reality in its denominational characteristics in the collection of taxonomical and dialetological maps, as through a phytogeographic map with terms in Wapixana language. This way, the objective is to obtain the cosmovision of the denominating group. This paper was made in three parts: the theoretical fundaments; the historical-geographical and etno-linguistic aspects of the fields of Rio Branco and the analysis of the toponymic motivation. The result of these analyses demonstrates that the mentioned fields are fruit of the Wapixana mythical geography and that the preponderant toponymic taxonomy corresponds to the zootoponyms and phytotoponyms. Three dialetological layers where identified at the region: the oldest, of Wapixana origin; the second, also of Amerindian origin, but exogenous from the research area, with nouns of Tupi roots, prevenient of the Amazonian General Language and, at the end, the Portuguese.
39

A morada dos Wapixana: Atlas toponímico da região indígena da Serra da Lua - RR / The homeland of the Wapixana: toponymic atlas of Serra da Lua indigenous region (state of Roraima, Brazil)

João Paulo Jeannine Andrade Carneiro 08 February 2008 (has links)
A morada dos Wapixana (Arawak) são os campos do nordeste do estado de Roraima. Em sua porção sudeste encontramos a região indígena da Serra da Lua, composta por 17 malocas indígenas com 5.000 Wapixana. Desenvolvemos esta pesquisa por meio da análise toponímica (Dick, 1980, 1999) e etnolingüística (Potier, 1970) das malocas e das paisagens vegetais da região. Objetivamos, desta forma, detalhar a realidade toponímica em suas características denominativas, no conjunto de mapas taxionômicos, dialetológicos, além de um fitogeográfico com os termos em Wapixana. Com isso, procuramos obter a cosmovisão do grupo denominador. Para tanto, dividimos este trabalho em três partes: os fundamentos teóricos; aspectos histórico-geográficos e etnolingüísticos dos campos do Rio Branco; e por último a análise das motivações toponímicas. O resultado das análises demonstrou que os campos ora citados, são frutos da geografia mítica Wapixana, bem como as taxionomias toponímicas preponderantes são os zootopônimos e fitotopônimos. Identificamos três camadas dialetológicas na região: a mais antiga de origem Wapixana;. a segunda, também de origem ameríndia, porém exógena à área de pesquisa, são os nomes de origem Tupi, provindos da Língua Geral Amazônica; e finalmente a portuguesa. / The homeland of the Wapixana (Arawak) are the fields at the northeast region of the state of Roraima. In its southwest portion we find the indigenous region of Serra da Lua, composed by 17 indigenous hamlets, inhabited by 5000 Wapixana. This research was developed through the toponymic (Dick, 1980, 1999) and etnolinguistical (Potier, 1970) of the hamlets and the regional vegetation landscapes. It\'s goal is to detail the toponymic reality in its denominational characteristics in the collection of taxonomical and dialetological maps, as through a phytogeographic map with terms in Wapixana language. This way, the objective is to obtain the cosmovision of the denominating group. This paper was made in three parts: the theoretical fundaments; the historical-geographical and etno-linguistic aspects of the fields of Rio Branco and the analysis of the toponymic motivation. The result of these analyses demonstrates that the mentioned fields are fruit of the Wapixana mythical geography and that the preponderant toponymic taxonomy corresponds to the zootoponyms and phytotoponyms. Three dialetological layers where identified at the region: the oldest, of Wapixana origin; the second, also of Amerindian origin, but exogenous from the research area, with nouns of Tupi roots, prevenient of the Amazonian General Language and, at the end, the Portuguese.
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Climate and woody plant species richness : analyses based upon southern Africa's native flora with extrapolations to subsaharan Africa

O'Brien, Eileen M. January 1990 (has links)
No description available.

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