Dissertations / Theses on the topic 'Invidia'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Invidia.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Carroll, Kendra. "Mating bias in the red imported fire ant, Solenopsis invicta /." View online, 2008. http://repository.eiu.edu/theses/docs/32211131428178.pdf.
Full textJetter, Hans-Christian. "Usability-Evaluation im Rahmen von INVISIP." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10761286.
Full textDoláková, Eva. "Podnikatelský záměr CA Invia." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2008. http://www.nusl.cz/ntk/nusl-221990.
Full textVillavicencio, Gallardo Rafael William. "Cálculo hidráulico del sistema de relaves – caso Mina Invicta." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2019. https://hdl.handle.net/20.500.12672/16581.
Full textMemmel, Thomas. "INVISIP Implementation einer tabellenbasierten Visualisierung für geo-räumliche Metadaten /." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10162234.
Full textHale, Michael Walker. "Host/parasite interactions between Solenopsis invicta (Hymenoptera: Formicidae) and Thelohania solenopsae (Microsporida: Thelohaniidae)." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/5910.
Full textChytilová, Kristýna. "Analýza obchodní strategie firmy Invia." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-76389.
Full textGundelsweiler, Fredrik. "INVISIP - Implementation eines Scatterplots zur Visualisierung von geo-räumlichen Metadaten." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10252261.
Full textHuamán, Guerrero Alfonso Edmundo. "Génesis y controles litoestructurales del yacimiento polimetálico invicta distrito Huaura – Lima." Universidad Nacional de Ingeniería. Programa Cybertesis PERÚ, 2010. http://cybertesis.uni.edu.pe/uni/2010/huaman_ga/html/index-frames.html.
Full textInvicta area is located north of Lima in the western cordillera of the Peruvian Andes, within the eugeosyncline of the geosyncline Andean Mesozoic basin in the contact between the intrusive rocks of the Coastal Batholith and the volcanic rocks of Calipuy group, locating mineralized structures in both lithologies, with economic metals Au, Cu, Ag, Pb and Zn of current economic interest. In this area the mineral deposit of Invicta comprises i) the generation of the last pulse of calc-alkaline intrusions of the Coastal Batholith with ages around 30 million years. The initial phase of the batholith magmatism generative dates and related to compressive orogenic movements of the Peruvian phase occurred in upper Cretaceous with ages approximately 100 million years. ii) Generation of the volcanic rocks of Calipuy formation with ages somewhat lower than the pulses of hydrothermal solutions generated by the intrusive. Apparently the final pulses of the Batholith and the Calipuy volcanic was driven by movements of compressive deformation of the Inca phase during the lower to middle tertiary. iii) Finally the generation of hydrothermal fluids from the residual solutions rich in silica and metal ions, originated in the last intrusional pulses of the Batholith, and they originated the mineralization in mineral deposit of Invicta. The fluid inclusion study shows three populations of mineralizing fluids recognized by different temperature ranging from 150 to 450 ºC and salinities ranging from 0 to 21% eq. NaCl, which has allowed an overlay of events with mineral interest. This fact, together with favorable host igneous lithology and faulting systems as channels gatherer for the deposition of mineralizing fluids, have encouraged the formation of this mineral deposit. Invicta is tentatively classified as a Cordillerano mineral deposit type, of epigenetic origin mainly mesothermal to epithermal range. The Wilkinson diagram of salinity vs. homogenization shows a complex distribution of mineralization in this mineral deposit, which falls mainly in the mesothermal field with gradations to epithermal field. 10 The column previously recognized with economic mineralization in Atenea Vein is 600 m; with a paleorelief would be about 400 m above the present surface, making a total column of 1000 m. in the vertical. This fact and the different phase of mineralization superimposed with different degrees of temperature and salinity, open up important exploratory opportunities in depth, in Atenea vein mainly towards the southwest as well as in other veins, which will be pointing to the continuation of detailed investigations in the laboratory and confirmed by exploration with diamond drilling and other complementary studies
Overton, Katherine Jane. "Mating flight initiation and nutritional status of Solenopsis invicta (Hymenoptera: Formicidae) alates infected with Thelohania solenopsae (Microsporida: Thelohaniidae)." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/1381.
Full textRice, Kevin Barry Eubanks Micky. "Mutualisms, commensalisms, and predation the direct and indirect effects of fire ants on arthropods and plants /." Auburn, Ala., 2007. http://hdl.handle.net/10415/1392.
Full textDuchoňová, Denisa. "Návrh zlepšení firemní kultury v CA Invia." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222005.
Full textKarlsson, Sven-Göran. "Enbart för de invigda öppnar sig texten fullt ut : Om gymnasieelevers genremedvetenhet." Thesis, Halmstad University, School of Teacher Education (LUT), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2410.
Full textSyftet med denna uppsats är att granska ett antal gymnasieelevers genrekompetens och avgöra hur kapabla de är att placera in texter i olika genrer, samt vad som får dem att betrakta en text som tillhörig en specifik genre. Detta görs genom en tvådelad undersökning där en grupp elever ombeds genrebestämma fyra autentiska texter (en saga, ett kåseri, en skräcknovell och en nyhetsartikel) samt motivera sina val, medan ytterligare en grupp elever fritt får beskriva vad de anser som specifikt för dessa fyra genrer. Undersökningens resultat jämförs sedan med litteraturvetenskapens genredefinitioner. Av resultatet framgår att medverkande elever tycks besitta en någorlunda god kunskap i ett antal vanliga genrer. De kan med ganska stor säkerhet placera texterna i rätt genre samt beskriva vad som är specifikt för genren ifråga. Dessa beskrivningar stämmer tämligen väl överens med de som ges inom litteraturvetenskapen, men skiljer sig också på ett fåtal punkter.
Díaz, Solar Francisco, and Infante Duanel Díaz. "Gastón Baquero invita a leer Cosmos, de Alejandro de Humboldt." Universität Potsdam, 2001. http://opus.kobv.de/ubp/volltexte/2009/3453/.
Full textKeck, Molly Elizabeth. "Invasive interactions of Monomorium minimum (Hymenoptera: Formicidae) and Solenopsis invicta (Hymenoptera: Formicidae) infected with Thelohania solenopsae (Microsporida: Thelohaniidae)." Texas A&M University, 2003. http://hdl.handle.net/1969.1/3986.
Full textCooper, Laura B. "The potential effects of red imported fire ants (Solenopsis invicta) on arthropod abundance and Cucumber mosaic virus." Auburn, Ala., 2005. http://repo.lib.auburn.edu/Send%2012-16-07/COOPER_LAURA_14.pdf.
Full textChen, Johnny Shou-Chung. "Pathophysiology and transmission of Thelohania solenopsae in the red imported fire ants, Solenopsis invicta." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/2761.
Full textMejía, Aguilar Joel Rolando. "Geología y categorización de recursos geológicos mineros del proyecto Invicta – provincia de Huaura, Lima." Universidad Nacional de Ingeniería. Programa Cybertesis PERÚ, 2009. http://cybertesis.uni.edu.pe/uni/2009/mejia_aj/html/index-frames.html.
Full textAllen, Hamilton Ross. "Distribution and Management of the Red Imported Fire Ant, Solenopsis invicta Buren, in Virginia." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/35125.
Full textField trials showed that combination applications of Advion and Top Choice provided the fastest and greatest reduction in foraging three days after treatment and the longest residual control of fire ant colonies for one year. Field tests documenting the impacts of Advion and Top Choice on non-target ants indicate treatments do supress ant foraging but ant populations will rebound 10-12 months after treatment.
Laboratory PCR assays revealed that colonies in Virginia are primarily polygyne. Also, Kneallhazia solenopsae, Pseudaction spp. parasitoid decapitating phorid flies, and Solenopsis invicta virues (SINV) genetic materials were detected in fire ant samples.
CLIMEX model results indicate that fire ants will be able to spread as far east as the Greater Richmond area and as far north as Alexandria in Virginia.
Master of Science in Life Sciences
Diaz, Galarraga Rodrigo Rogelio. "Impact of the red imported fire ant upon cotton arthropods." Thesis, [College Station, Tex. : Texas A&M University, 2003. http://hdl.handle.net/1969.1/254.
Full textCalixto, Sanchez Alejandro Antonio. "Diversity, abundance, seasonality and interactions of ants (Hymenoptera: Formicidae) in pecans in Mumford, Robertson Co., Texas." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1487.
Full textStiles, Judith H. "The red imported fire ant, Solenopsis invicta, in early-successional coastal plain forests: tests of distribution and interaction strength." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46488.
Full textMaster of Science
Murta, Maria Marcia. "Sintese total e estereosseletiva do (+-)-invictolideo. Componente do feromonio de reconhecimento da formiga Solenopsis invicta." [s.n.], 1991. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249133.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica
Made available in DSpace on 2018-07-14T01:53:45Z (GMT). No. of bitstreams: 1 Murta_MariaMarcia_D.pdf: 11791272 bytes, checksum: 045458321fd7ff966f609721e526e172 (MD5) Previous issue date: 1991
Doutorado
Campomizzi, Andrew J. "Effects of red imported fire ants on songbird nest survival." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2843.
Full textChen, Mei-Er. "cDNA cloning and transcriptional regulation of the vitellogenin receptor from the imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae)." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/1596.
Full textOttman, M. J., and B. A. Kimball. "Invinsa Application to Reduce Water Stress Effects on Corn Growth and Yield at Maricopa, AZ, 2011." College of Agriculture, University of Arizona (Tucson, AZ), 2012. http://hdl.handle.net/10150/211154.
Full textOttman, M. J., and B. A. Kimball. "Invinsa Application to Reduce Water Stress Effects on Corn Growth and Yield at Maricopa, AZ, 2012." College of Agriculture, University of Arizona (Tucson, AZ), 2012. http://hdl.handle.net/10150/279376.
Full textBedford, Theresa Louise. "Red imported fire ant impact on native ants and litter removal in the post oak savannah of central Texas." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3770.
Full textFurman, Barry D. "Utilization and evaluation of an indoxacarb-based granular bait (Advion) developed for the control of the red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae)." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5784.
Full textDall'Aglio-Holvercem, Christiane Gonçalves. "Estudos populacionais e taxonomicos de formigas lava-pes, Solenopsis invicta (Hymenoptera: Formicidae) e da fenologia de seus parasitoides do genero Pseudacteon (Diptera: Phoridae)." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316308.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-08-06T14:03:47Z (GMT). No. of bitstreams: 1 Dall'Aglio-Holvercem_ChristianeGoncalves_D.pdf: 1459643 bytes, checksum: 5ed521529fb7303e231df7d9f2ebbda3 (MD5) Previous issue date: 2006
Resumo: Este trabalho discute alguns aspectos da ecologia da formiga lava-pés Solenopsis invicta e seus parasitóides, as moscas do gênero Pseudacteon (familia Phoridae), e da taxonomia de S. invicta e S. saevissima, ambas nativas da América do Sul. A alometria de colônias de S. invicta no sudeste do Brasil foi estudada através de medições das dimensões do ninho acima do solo, seguidas por escavação e medida da profundidade, biomassa e número de operárias da colônia, assim como da largura média da cabeça das operárias. Análise de regressão dos dados para 28 colônias forneceu novas relações alométricas que podem ser usadas para estimar o volume do ninho (acima e abaixo da superfície do solo), a biomassa de formigas, e o número de operárias a partir do volume do ninho acima do solo. A biomassa de formigas por unidade de volume do ninho, o número de operarias por unidade de volume do ninho, o peso médio por operária, e a largura média da cabeça das operárias foram essencialmente independentes do tamanho da colônia. Em contraste, estas quatro quantidades aumentam com o tamanho da colônia entre colônias de S. invicta na América do Norte. O ciclo sazonal e abundância de moscas parasitóides do gênero Pseudacteon na vizinhança de colônias de S. invicta no sudeste do Brasil foi observado ao longo de um período de 3 anos em li áreas de gramíneas nos arredores de Campinas. O número médio N de forídeos atraídos para um ninho de formigas lava-pés ao longo de um período padrão de observação (15 min) foi usado como uma medida da abundância de forídeos. As dimensões do ninho e algumas variáveis meteorológicas foram também registradas em cada ninho de formigas lava-pés. Pseudacteon tricuspis foi a espécie mais comum (70.4%), seguido por P. curvatus (23.8%), P. obtusus (1.9%) e P.litoralis (3.9%). As características mais notáveis das flutuações sazonais da abundância de Pseudacteon são picos abruptos com duração aproximada de um mês (valores máximos de N entre 4 e 10 forídeos/ninho), que ocorreram em abril e junho de alguns anos; para comparação, valores típicos de N estavam entre 0.2 e 2 forídeos/ninho. As populações de forídeos parecem ser destruídas por incêndios e inundações, mas recuperam-se em uma escala de tempo da ordem de meses. Nenhuma correlação significativa foi encontrada entre a abundância de Pseudacteon e variáveis meteoro lógicas, densidade, ou volume de ninhos de S. invicta, sugerindo que a abundância de Pseudacteon não está diretamente ligada a abundância de S. invicta. Flutuações quase idênticas em abundância de Pseudacteon foram observadas ao longo de um período de 6 meses em duas áreas de estudo separadas por cerca de 3 km, o que pode ser causado por dispersão de forídeos e conseqüente uniformização de densidades sobre áreas de vários quilômetros quadrados. Os números de forídeos atraídos pelos vários ninhos de S. invicta incluídos neste estudo seguiram uma distribuição de Poisson em baixas abundâncias de Pseudacteon (N < 0,5 forídeos/ninho); a distribuição tornava-se mais e mais contagiosa com o aumento da abundância de Pseudacteon (até o máximo observado, de N = 10 forídeoslninho). Esta observação sugere que a atratividade de um ninho de formigas lava-pés aos parasitóides aumenta com o número de forídeos que foram previamente atraídos para o ninho. Critérios quantitativos eficientes foram desenvolvidos para distinguir entre S. invicta e S. saevissima, que são morfológicamente muito similares e cujas distribuições geográficas na América do Sul se sobrepõe significativamente. Estes critérios resultaram da análise de 68 amostras de formigas lava-pés de 9 localidades espalhadas pelo estado de São Paulo (sudeste do Brasil) através de cromatografia gasosa e espectrometria de massa. 22 hidrocarbonetos cuticulares e 18 alcalóides piperidínicos foram identificados nas amostras estudadas, e suas abundâncias relativas foram analisadas utilizando análises de componentes principais e de funções discriminantes. Estas análises mostraram uma separacão nítida entre as duas espécies em um plano com certas coordenadas (P,Q), que são funções das abundâncias relativas dos hidrocarbonetos cuticulares. As amostras provenientes de uma das localidades (São José do Rio Preto) têm uma composição de hidrocarbonetos que é claramente diferente de todas as outras amostras consideradas neste estudo, mas também apresentam algumas caracteristicas em comum com cada uma das duas espécies. Uma possibilidade é que esta população constitua um hibrido de S. invicta e S. saevissima. As duas espécies também exibem uma separação razoavelmente nítida em um plano com coordenadas (R$), que são funções das abundâncias relativas de alcalóides piperidínicos. Os resultados das identificações de espécies baseados nestes critérios de separação quimica concordam com os resultados baseados em um critério morfológico, a presença ou ausência do dente clipeal mediano. A população "anômala" de São José do Rio Preto é morfologicamente classificada como S. invicta
Abstract: This work discusses some aspects of the ecology of the fire ant species Solenopsis invicta and its phorid parasitoid flies ofthe genus Pseudacteon, and ofthe taxonomy of S. invicta and S. saevissima, both of which are native to South America. The allometry of S. invicta colonies in southeast Brazil was studied by measurement of mound (aboveground) dimensions, followed by excavation and measurement of the colony depth, biomass, number of workers, and mean worker head width. Regression anaIysis of data for 28 colonies yielded new allometric relationships which can be used to estimate nest volume (above and below ground), ant biomass, and number ofworkers ITom mound (aboveground) volume. Ant biomass per unit nest volume, number of workers per unit nest volume, mean worker weight, and mean worker head width were nearly independent of colony size. In contrast, these four quantities increase with colony size among S. invicta colonies in North America. The seasonal cycle of abundance of Pseudacteon phorid flies in the vicinity of S. invicta colonies in southeast Brazil was observed over a 3-year period in 11 grass-covered areas in the outskirts of Campinas. The average number N of phorids attracted to a fire ant nest over a standard observation period (15 min) was used as a measure of phorid abundance. Mound dimensions and meteorological variables were also recorded at each fIre ant nest. Pseudacteon tricuspis was the most common species (84.2%), followed by P. curvatus (12.6%), P. obtusus (2.7%) e P. litoralis (0.5%). The most remarkabIe featores of the seasonal fluctuations of Pseudacteon abundance are sharp month-Iong peaks (peak N values between 4 and 10 phorids/nest) which occurred in Abril and June of some years; for comparison, at other times N was typically between 0.2 and 2 phorids/nest. Phorid populations seem to be destroyed by rifes and floods, but recover on a time scale of months. No significant correlation was found between Pseudacteon abundance and meteorological variables, density, or volume of S. invicta nests, suggesting that Pseudacteon abundance is not determined by, and does not determine, the abundance of S. invicta. Almost identical fluctuations in Pseudacteon abundance were observed over a 6-month period in two study areas separated by about 3 km, which may be due to phorid dispersaI and consequent density uniformization over areas of several square kilorneters. The nurnbers of phorids attracted by the various S. invicta nests inc1uded in this study followed a Poisson distribution at 10w Pseudacteon abundances (N < 0.5 phorids/nest), becoming more and more contagious at high Pseudacteon abundances (up to N= 10 phorids/nest). This observation suggests that the attractiveness oftire ant nests to phorid parasitoids increase with the nurnbeer ofphorids which have been previously attracted to the nest. Efficient quantitative criteria were developed for distinguishing between S. invicta and S. saevissima, which are morphologically very similar and whose geographical ranges in South Arnerica significantly overlap. These criteria resulted from the analysis of 68 tire ant samples from 9 localities across São Paulo state (southeast Brazil) via gas chromatography/mass spectrometry. 22 cuticular hydrocarbons and 18 piperidine alkaloids were identified in the studied samples, and their relative abundances were analyzed using principal component and discrirninant function analyses. These analyses showed a sharp separation between the two species in a plane with certain coordinates (P,Q), which are functions of the relative abundances of cuticular hydrocarbons. The fire ant samples from one of the localities (São José do Rio Preto) had a hydrocarbon composition which was markedly different from ali other samples considered in this study, but had some features in common with each ofthe two species. One possibility is that this population constitutes a hybrid of S. invicta and S. saevissima. The two species also show a reasonably sharp separation in a plane with coordinates (R,S), which are functions of the relative abundances of piperidine alkaloids. The species identification results based on these chernical separation criteria agree with those based on a morphological criterion, the presence or absence of the median clypeal tooth. The "anomalous" population from São José do Rio Preto is rnorphologically c1assified as S. invicta
Doutorado
Ecologia
Doutor em Ecologia
Dallyn, Yana. "Esoterism i konst – konst för de invigda : Tolkningar av Hilma af Klint och hennes verk genom det esoteriska prismat." Thesis, Stockholms universitet, Institutionen för kultur och estetik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-190370.
Full textSouza, Rodrigo Fernando de [UNESP]. "Caracterização de populações genéticas de Solenopsis invicta através de marcadores moleculares microssatélites. Correlação de similaridade entre populações hospedeiras e endossimbiose." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/87691.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
As formigas da espécie Solenopsis invicta são nativas da América do Sul, mas elas foram introduzidas em novos ambientes e passaram a causar sérios danos à agricultura e pecuária bem como causar alguns transtornos ao ser humano. Muitos estudos sobre a biologia reprodutiva de S. invicta foram conduzidos com populações introduzidas; porém, poucos com as populações nativas. As ferramentas moleculares como microssatélties e mtDNA podem auxiliar na investigação sobre a biologia reprodutiva das espécies. Diferentes comportamentos sociais de S. invicta como a monoginia e a poliginia, podem interferir na biologia reprodutiva da espécie, e a utilização das ferramentas moleculares corretas pode evidenciar este comportamento. A expansão das populações nativas, assim como a introdução dessa formiga em outros ambientes, pode ter levado à interação com outros táxons de formigas e com outros tipos de organismos. Essa interação pode ter sido responsável pela aquisição da endobactéria Wolbachia. Ela é uma bactéria intracelular que pode causar distúrbios reprodutivos em seus hospedeiros. Este trabalho analisou 10 ninhos de S. invicta coletados em cinco cidades do Estado de São Paulo com o objetivo de inferir sobre a biologia reprodutiva de S. invicta, utilizando marcadores moleculares microssatélites e mtDNA e também verificar a presença de Wolbachia. A formação de quatro grupos filogeneticamente distintos para mtDNA sugerem linhagens divergentes de haplótipos dentro dos dez ninhos. Essa separação também pode indicar interferências na dispersão natural das fêmeas. A análise dos microssatélites revelou que alguns problemas moleculares podem interferir na investigação sobre a biologia reprodutiva. A análise específica de poliginia indica que todos os ninhos analisados são monogínicos, mas os resultados de microssatélites sugerem que ninhos de S. invicta...
The ants of Solenopsis invicta are native of South America, but they were introduced into new environments and began to cause serious damage to agriculture and livestock and cause some inconvenience to humans. Many studies on the reproductive biology of S. invicta were conducted with introduced populations, but few with the native populations. The molecular tools such as analysis of mtDNA and microsatellites can assist in research on the reproductive biology of the species.Different social behavior of S. invicta as monogyny and polygyny, can interfere in the reproductive biology of the species, and the use of the correct molecular tools may show this behavior.The expansion of the native populations, as well as the introduction of this ant in other environments may have led to the interaction with other taxa of ants and other types of organism. This interaction may have been responsible for the acquisition of endobacteria Wolbachia. This bacteria is intracellular and can cause reproductive disorders in their hosts. This study analyzed 10 nests of S. invicta collected in five cities of São Paulo aiming to infer the reproductive biology of S. invicta, using microsatellite markers and mtDNA and also verify the presence of Wolbachia. The formation of four groups phylogenetically distinct mtDNA suggests divergent lineages of haplotypes inside the ten nests. This separation can also indicate interference with the natural dispersal of females. Analysis of microsatellite revealed that some molecular problems may interfere in the research on the reproductive biology. The specific analysis of polygyny indicates that all nests that were analyzed are monogynous, but results of microsatellite suggest that nests of S. invicta have more than one reproductive queen. The Wolbachia presence analysis revealed two strains, the A from subgroup InvA of the S. invicta and the B strain characteristic of ... (Complete abstract click electronic access below)
Souza, Rodrigo Fernando de. "Caracterização de populações genéticas de Solenopsis invicta através de marcadores moleculares microssatélites. Correlação de similaridade entre populações hospedeiras e endossimbiose /." Rio Claro : [s.n.], 2011. http://hdl.handle.net/11449/87691.
Full textBanca: Maria Santina de Castro Morini
Banca: Ricardo Harakava
Resumo: As formigas da espécie Solenopsis invicta são nativas da América do Sul, mas elas foram introduzidas em novos ambientes e passaram a causar sérios danos à agricultura e pecuária bem como causar alguns transtornos ao ser humano. Muitos estudos sobre a biologia reprodutiva de S. invicta foram conduzidos com populações introduzidas; porém, poucos com as populações nativas. As ferramentas moleculares como microssatélties e mtDNA podem auxiliar na investigação sobre a biologia reprodutiva das espécies. Diferentes comportamentos sociais de S. invicta como a monoginia e a poliginia, podem interferir na biologia reprodutiva da espécie, e a utilização das ferramentas moleculares corretas pode evidenciar este comportamento. A expansão das populações nativas, assim como a introdução dessa formiga em outros ambientes, pode ter levado à interação com outros táxons de formigas e com outros tipos de organismos. Essa interação pode ter sido responsável pela aquisição da endobactéria Wolbachia. Ela é uma bactéria intracelular que pode causar distúrbios reprodutivos em seus hospedeiros. Este trabalho analisou 10 ninhos de S. invicta coletados em cinco cidades do Estado de São Paulo com o objetivo de inferir sobre a biologia reprodutiva de S. invicta, utilizando marcadores moleculares microssatélites e mtDNA e também verificar a presença de Wolbachia. A formação de quatro grupos filogeneticamente distintos para mtDNA sugerem linhagens divergentes de haplótipos dentro dos dez ninhos. Essa separação também pode indicar interferências na dispersão natural das fêmeas. A análise dos microssatélites revelou que alguns problemas moleculares podem interferir na investigação sobre a biologia reprodutiva. A análise específica de poliginia indica que todos os ninhos analisados são monogínicos, mas os resultados de microssatélites sugerem que ninhos de S. invicta ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The ants of Solenopsis invicta are native of South America, but they were introduced into new environments and began to cause serious damage to agriculture and livestock and cause some inconvenience to humans. Many studies on the reproductive biology of S. invicta were conducted with introduced populations, but few with the native populations. The molecular tools such as analysis of mtDNA and microsatellites can assist in research on the reproductive biology of the species.Different social behavior of S. invicta as monogyny and polygyny, can interfere in the reproductive biology of the species, and the use of the correct molecular tools may show this behavior.The expansion of the native populations, as well as the introduction of this ant in other environments may have led to the interaction with other taxa of ants and other types of organism. This interaction may have been responsible for the acquisition of endobacteria Wolbachia. This bacteria is intracellular and can cause reproductive disorders in their hosts. This study analyzed 10 nests of S. invicta collected in five cities of São Paulo aiming to infer the reproductive biology of S. invicta, using microsatellite markers and mtDNA and also verify the presence of Wolbachia. The formation of four groups phylogenetically distinct mtDNA suggests divergent lineages of haplotypes inside the ten nests. This separation can also indicate interference with the natural dispersal of females. Analysis of microsatellite revealed that some molecular problems may interfere in the research on the reproductive biology. The specific analysis of polygyny indicates that all nests that were analyzed are monogynous, but results of microsatellite suggest that nests of S. invicta have more than one reproductive queen. The Wolbachia presence analysis revealed two strains, the A from subgroup InvA of the S. invicta and the B strain characteristic of ... (Complete abstract click electronic access below)
Mestre
Hill, JoVonn Grady. "Environmental variables affecting ant (Formicidae) community composition in Mississippi's Black Belt and Flatwoods regions." Master's thesis, Mississippi State : Mississippi State University, 2006. http://library.msstate.edu/etd/show.asp?etd=etd-04192006-141353.
Full textMarques, Edward. "Effects of the Exotic Red Imported Fire Ant (Solenopsis invicta) on the Growth and Survival of the Threatened Hooded Pitcher Plant (Sarracenia minor)." UNF Digital Commons, 2015. http://digitalcommons.unf.edu/etd/615.
Full textAxelsson, Pia. "Minskad trädtillväxt under Lilla sitiden? : En dendroklimatologisk jämförelse mellan nutid och 1600-talet invid trädgränsen i norra Skandinavien." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-117162.
Full textGarlapati, Rajesh Babu. "Population genetics study of the imported fire ants (Formicidae: Solenopsis spp.)." Diss., Mississippi State : Mississippi State University, 2009. http://library.msstate.edu/etd/show.asp?etd=etd-06092009-105441.
Full textFuessel, Tania. "A Comprehensive Assessment of the Impacts of the Insect Growth Regulator Methoprene on Soil Mites and Function in Brisbane, Australia." Thesis, Griffith University, 2013. http://hdl.handle.net/10072/367222.
Full textThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
Full Text
niccoli, ariele. "Formazione etica ed emozioni. Prospettive di Virtue Ethics neo-aristotelica." Doctoral thesis, 2019. http://hdl.handle.net/2158/1154035.
Full textNeff, Richard R. "Particle Size and Bait Preference of the Red Imported Fire Ant, Solenopsis invicta Buren (Hymenoptera: Formicidae)." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8425.
Full textLiu, Kelvin Jordan, and 劉錕. "Evaluation of bait effectiveness and chitin synthesis inhibitors against Solenopsis invicta." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/41853723035311176613.
Full text國立臺灣大學
昆蟲學研究所
94
Solenopsis invicta is definitely one of the most serious invaded species of the world. It has caused countless economic loss and public health risk. Unfortunately, it was found at Taiwan in 2003. The government purposes to eliminate S. invicta from Taiwan, and large amount of bait and contact insecticide has been applied in the field. In the meanwhile, some effort is still trying to screen out more effective bait to control S. invicta. However, ants can’t reproduce generations in laboratory. Under such condition, the simulative laboratory test using few laboratory populations is necessary to replace the field experiment and laboratory test with whole-colony. But bait effectiveness evaluation under laboratory condition is not constructed thoroughly. 50 workers (mix of minors and majors) is replaced in one box, and fed with soybean oil for one week under 27℃. The feeding rate is 16.3 ± 0.5 mg. Comparing to the room light condition (400 Lux), the feeding rate is 10.3 ± 0.9 mg and significantly lower with dim light (4 Lux). When tested with 0.05% hydramethylnon dissolved in soybean oil and consisted with 5 - 25 4th instar larvae more, the feeding rate is not significantly different at each larval number. But if 30, 50 or 75 workers set with 15 larvae, the feeding rate is positive to the worker number. Comparing to 50 workers alone, the LT50 is slightly shorter when set with up to 25 larvae, but no significantly difference; the LT50, however, is significantly shorter when set with 5 and 15 pupae. Above all, it is nearly not related between feeding rate and LT50, and the R2 is as low as 0.0394. Three sets of workers: 100, 50 and 25, with 0 – 20 larvae are fed with solid 0.00015% fipronil bait. The LT50 is significantly shorter in the treatment with larvae. The result shows that although adult workers can’t eat solid particle but still can been effected by bait. The existence of larvae can digest the solid food and transfer the chemical. The chitin synthesis inhibitor is a kind of agro-chemical with slow action and is safe to mammal. It has been widely used against various insect pests, especially on termites, but is not used on ants. The death rate over 30days of workers is lower than 20% by feeding 0.1% - 2.5% diflubenzuron, triflumuron and hexaflumuron dissolved in soybean oil. No direct toxicity is observed on workers. As a single colony as an experimental unit, colonies are fed with 0.5 – 2.5% diflubenzuron bait. Only 1% diflubenzuron treatment shows significant reduction of population index over 12 weeks observation. Reduction of larvae is observed in most colonies, but not on workers. All treated colonies start to recover after the 10th week. 4th instar larvae fed with diflubenzuron do not reveal adverse effect on their digest system but shows delay in pupation. As the result, chitin synthesis inhibitors are not much effective to S. invicta.
Huang, Xinyu Toby, and 黃欣宇. "Closing Gaps in the Genome of the Fire Ant Solenopsis invicta." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/07599909077542719415.
Full text國立臺灣大學
昆蟲學研究所
102
With the rapid development of new sequencing technologies and the drastic reduction to sequencing costs, genome wide sequencing studies can now be applied to non-model organisms that do not have established reference genomes. The recent publication of the genome of the invasive fire ant Solenopsis invicta is a good example of how such new advances in next generation sequencing technologies can be readily adopted for an economically and ecologically important non-model species. Nevertheless, limitations of the sequencing and assembly technologies create difficulties in achieving complete coverage of the entire genome. These newly assembled genomes are considered draft genomes, because they contain many gaps of unknown bases within and in between scaffolds. This project aims to resolve some of these gaps on linkage group 16 (LG 16) of the S. invicta draft genome by using a combination of PCR, cloning, and Sanger sequencing techniques. LG 16, or LG S (“social”), corresponds to a chromosome implicated to have important roles in the genetic control of the fire ant’s social behavior. A total of 279 gap closures were attempted inside and outside a special non-recombining region on LG 16. While larger inter-scaffold gaps were closed by screening for BAC clones that span across scaffolds. Sequencing results revealed a 10% higher proportion of repetitive elements inside the supergene than that of outside. These patterns are consistent with assembly biases which might support previous predictions regarding the accumulation of deleterious elements in the non-recombining region. These resolved gap sequences, in combination with BAC sequences that span inter-scaffold gaps would not only allow for the assembly of a more complete genome, but may also contribute to revealing important genomic features such as repetitive elements and genomic repeats in the social chromosome.
Keddie, George Anthony. "Iudaea capta, Iudaea invicta : the subversion of Flavian ideology in Fourth Ezra." Thesis, 2013. http://hdl.handle.net/2152/23996.
Full texttext
Lee, Chi-Lung, and 李其龍. "Application of Photorhabdus luminescens on control of the invasive fire ant Solenopsis invicta." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/27189365806469832093.
Full text國立臺灣大學
植物醫學碩士學位學程
104
Since first report in late 2003, the invasive fire ant, Solenopsis invicta, has spread at least half of northern Taiwan despite intensive control effort involving bait broadcasting and individual mound injection. Considering limited resources, developing alternative control methods that are more economical is urgently needed. The present study therefore aims to evaluate biocontrol potential of Photorhabdus luminescens, a symbiotic bacterium in entomopathogenic nematode Heterorhabditis brevicaudis. During proliferation P. luminescens yields toxic proteins that possess insecticidal activities, thus serving as biopesticide for pest control. The P. luminescens broth of different protein concentrations (0.5, 0.25, 0.125 and 0.05 mg/mL) were fed to colonies of S. invicta, accumulated mortalities are generally concentration-dependent, except for those treated with the broth containing 0.125 and 0.05 mg/ml protein which showed no difference with control. Control effect of broth is relevant to preserved days under room temperature. Broth preserved for 15 days could cause 39.93 % mortality; 100-day preservation broth displayed no controlling effort. Oral toxicity treatments of different protein molecular weights (greater than 100 kDa and 10–100 kDa) are not significantly with each other. To employ this liquid-based agent, direct broth application and broth embedding measures can be adopted. Behavioral tests showed that ground-dwelling S. invicta displayed no significant preference on control soil over those treated with P. luminescens broth, indicating negligible repellency of the broth. A bait delivery system was designed using microencapsulation where the broth is surrounded by a coating to retain its physical and chemical property. Capsules (4 mm in diameter) were prepared with a formula of core-shell ratio of 2:1, 1.4 % sodium alginate solution, 5 % calcium chloride solution and 10 % sucrose. Treatment of 100 microcapsules application caused significantly higher accumulated mortality (33.31 %), implying that broth dosage is responsible for fire ant mortality as well. When executing this strategy against fire ants, the amount of applied capsules must be evaluated; improvements of attractiveness and lethality are also required. Besides, other control methods can be combined as well to establish an integrated pest management framework.
Tsai, Yu-Lung, and 蔡幼龍. "The relationships of expansion route and environmental factors with genetic variation of Solenopsis invicta." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/r45e4h.
Full text國立中興大學
昆蟲學系所
101
Invasive species are highly aggressive, and negatively effect on human economies and biodiversity. Successful biological invasions usually result from several evolutionary events that improve a species ability to survive in new habitats. The aim of this study is to quantify the roles of expansion route and environmental factors in the genetic variation of red import fire ant (Solenopsis invicta) in 16 cities of China by a novel analysis. We based on 211 S. invicta microsatellite data with 53 loci, and used Bayesian inference to calculate dissimilarity of environmental variables and expansion routes, and test relationships in expansion route, environmental factors and their interaction with the genetic variation of S. invicta. The deviance information coefficient weight (DIC weight) was used to select the best model. The importance of each factor in the best model was quantified by calculating the semi-partial R^2. Expansion route, environmental factors and their interaction all affected the genetic variation of S. invicta in China. Expansion route contributed more than environmental factors and their interaction (semi-partial R^2=0.37, 0.01 and 0.02, respectively). Different expansion routes increase the gene pool in China that increase the chance of variation. Environmental isolation explained very little of the genetic variation of S. invicta, indicating isolation-by-environmental contributed very little that environmental adaptations might not happen in China.
Lu, Mei-Chun, and 盧玫君. "Development and application of monoclonal antibodies against the venom of Solenopsis invicta(Hymenoptera: Formicidae)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/56427349682978259858.
Full text國立臺灣大學
昆蟲學研究所
93
The red imported fire ant (RIFA, Solenopsis invicta Buren) is one of the most destructive imported insect pests in Taiwan. They are not only invaders that bring serious ecological problems, but also aggressive medical pests that cause various human damages and symptoms such as the formation of characteristic sterile pustules, urticaria, edema, dermal necrosis, and even anaphylactic shock and death in rare cases. Approximately 270 species of ants were discovered in Taiwan, and some are very similar to S. invicta in their morphological characters. For example, the tropical fire ant (Solenopsis geminata) and several members of subfamily Myrmicinae such as Monomorium, Pheidole and Pheidologeton are not easy to be directly and quickly distinguished each other according to their morphology. For rapid and accurate identification of S. invicta to avoid people’s panic, monoclonal antibodies against the specific venom in the venomous gland of S. invicta were developed through the hybridoma technology. S. invicta and several ant species were collected for the venom analysis by SDS-PAGE (SDS-polyacrylamide gel electrophoresis), and the results demonstrated that the protein pattern in SDS-PAGE of S. invicta is different from the others. It indicated that the venom proteins are different among S. invicta as well as the other ant species. Four proteins were isolated and identified from venom. One of them is located in 13 kDa, the others are near around 24 kDa. The venom was used to immunize the mouse to develop monoclonal antibody. In the beginning, the polyclonal antiserum against venom of S. invicta showed positive to S. invicta and S. geminata, and negative to the other ant species. And in later totally 30 hybridoma cell lines have been selected to produce specific antibodies against S. invicta. A cell line named Rf-E7 showing the best specificity and sensitivity was selected for the mass-production of monoclonal antibodies. Furthermore, the monoclonal antibody Rf-E7 was proven to be able to accurately differentiate S. invicta from S. geminata. Both ascetic fluid and purified IgG of Rf-E7 showed the good specificity and sensitivity in the ELISA tests with 105 diluted antibodies. Dried, dead bodies and the samples treated with insecticides as well as preservative solutions obtained the slightly lower ELISA value than fresh samples. However, their ELISA values were still useful for identification of S. invicta. In the temperature experiment, the ELISA tests did not show apparently different results among different S. invicta populations residing in 15, 25, or 35℃. It revealed that alteration of temperature would not affect the quantity of RIFA venom. Based on the results in this thesis, the developed monoclonal antibody Rf-E7 has been proven to be an excellent probe for rapid identification of S. invicta. This antibody will be further dedicated to the preparation of the colloidal gold-labeled antibody strip that provides a more rapid and simple detection of S. invicta without any analytic instrument. People can identify whether their ant samples are S. invicta or not by themselves at home, which can reduce public panic for S. invicta.
Yang, Chin-Cheng, and 楊景程. "Population biology of the red imported fire ant (Solenopsis invicta) associated with its invasiveness." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/22941806342047500324.
Full text臺灣大學
昆蟲學研究所
98
Invasive species are recognized as major threats to native biodiversity, public health, and agriculture, often resulting in considerable economic loss. The full understanding of species’ characteristics that potentially could be transformed to the factors underlying the invasion success may assist accurate prediction of invasion potential as well as development of control strategies. Many social insects, particularly ants, are well known as being damaging pests, and one of the most notorious invasive ant species is the red imported fire ant, Solenopsis invicta. Recent multiple successful invasions by this exotic pest into several continents raise the concern about its imminent worldwide spread from the existing populations. To understand the invasiveness of S. invicta, the present study explored several key components of this pest ant species including population genetics, social organization and patterns of release from natural enemies. Also, the global movement of this ant was constructed to ascertain whether particular routes of invasion are common. The combined results showed that (1) introduction of fire ant in Taiwan left a modest footprint on pattern of genetic structure, (2) the interaction in a complementary fashion between two distinct colony social forms, monogyne and polygyne, likely contribute to the invasion and subsequent spread of S. invicta in Taiwan, (3) the success of recently established S. invicta populations may result from decreased pressure from natural enemy species with strong fitness effects compared with those that are less detrimental, (4) the USA represents the most likely common source population of all recently introduced areas, and the current distribution of S. invicta worldwide results from at least nine independent introductions. Multiple analyses of a large amount of data on different aspects of S. invicta provide guidelines for understanding the success of this pest ant species, as well as provide crucial information for the development of appropriate management strategies and facilitate the complete picture of fire ant invasions.
Medina, Freder. "Study of Midgut Bacteria in the Red Imported Fire Ant, Solenopsis invicta Büren (Hymenoptera: Formicidae)." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7873.
Full textChang, Chun-Chun, and 張淳淳. "Colony relatedness and microgeographical genetic structure of red imported fire ant Solenopsis invicta in Taiwan." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76526987420228578315.
Full text國立臺灣大學
昆蟲學研究所
97
Remarkable genetic changes of Solenopsis invicta have been reported in US. The post-invasion turnover seems unfailing but lacks further evidence from other introduced areas. Two social forms of fire ant in Taiwan provide a great opportunity to test the genetic change in different levels of hierarchical structure. At colony level, data from multiple microsatellite loci reveal that nestmate relatedness for monogyne invariably overlaps with 0.75 and is similar to those in US as well as its native range South America, suggesting that social organization of this form remains stable whether the population is native or introduced. In contrast, the nestmate relatedness of polygyne tends to be binomial; that is, one group possesses much higher value while the other one overlaps with zero. By keeping surveying one “higher” site, the significant decline of relatedness observed during successive collections from gives a direct evidence that sites belong to the “zero” group might have been invaded much longer than others from ‘‘higher’’ group. This pattern somehow parallels patterns in US and might be explained by adoption of unrelated alates driven by ecological constraints (e.g. habitat saturation) as the habitat ages. At microgeographical level, significant genetic differentiation is seen between sympatric forms in mtDNA but not microsatellite, which can be explained by the limited male mediated interform gene flow model. Subsequent genetic analyses show significant differentiation and strong isolation by distance (IBD) among polygyne sites but not monogyne, indicating restricted inter-site gene flow by polygyne queens, who usually expand by budding or local mating. On the other hand, the ability of monogyne queens to conduct distant mating flights appears to be the force homogenizing the genetic structure in a kilometer-scale. Results from the present study in population genetic give a indirect evidence to the form-specific biology of different Solenopsis invicta social organization. In colony level, the observation of changes in relatedness is generally consistent with ecological constraint hypothesis and provide direct evidence that the invasive fire ants did underwent rapid social evolution associated with invasion given they were estimated to have arrived into Taiwan within the last decade.
Hsu, Chih-Jay, and 徐稚傑. "3S techniques application on ant population survey and temperature factor to lethal assayof Solenopsis invicta." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/17949518448854162568.
Full text國立中興大學
昆蟲學系所
96
The red imported fire ant (Solenopsis invicta) has invaded Taiwan in 2003, and distributed at some areas in Hsinchu county. Utilizing 500m x 500m large area in this research to investigate ant population in Sinfong, Sinpu, and Guansi townships of Hsinchu county. The 3S techniques (GIS, RSS, GPS) were applied to select 983 sampling sites and investigated by GPS navigation. Fifteen ant genera were sampled, inclusive of three subfamilies, Formicinae, Myrmicinae, and Ponerinae. Ant forage activity is very active during March and October. Myrmicinae is the most dominate population among three subfamilies and occupied 87.7% of attracted tubes. Moreover, Pheidole is the most population among fifteen genera and occupied 45.57% of attracted tubes. There were 1061 numbers of S. invicta detected in s789 sampling site in Guansi township. There were 56 buffer areas divided in seven fire ant reported sites among three townships, and Pheidole was also the most dominate population in buffer areas. We also monitored ant population variation in Hesing village fire ant reported site, Monomorium and Pheidole ants emerged while S. invicta was extinct. Survivival days of S. invicta in room temperature was tested. S. invicta could survive about 35.25 ± 6.39 days added with 5μl water, while control was about 23 ± 4.76 days. Lethal temperature assay of S. invicta demonstrated that mortality increased as temperature rose. The mortality reached to 100% under 52 oC without water for 1 minute, while the mortality was beneath 50% under 46 oC for 10 minutes. Lethal time assay of S. invicta demonstrated that LT50 decreased as temperature rose. LT50 of 43 oC was 72.9 minutes, 44 oC was 38.1 minutes and 45oC was 11.6 minutes.