Academic literature on the topic 'Chrysomus'
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Journal articles on the topic "Chrysomus"
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Bernardon, Fabiana Fedatto, Carolina S. Mascarenhas, Jr Joaber Pereira, and Gertrud Müller. "Host-Parasite relationships and co-infection of nasal mites of Chrysomus ruficapillus (Passeriformes: Icteridae) in southern Brazil." Iheringia, Série Zoologia 108 (June 21, 2018): 1–7. https://doi.org/10.1590/1678-4766e2018025.
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Bernardon, Fabiana Fedatto, Mascarenhas, Carolina S., Pereira Jr, Joaber, Müller, Gertrud (2018): Host-Parasite relationships and co-infection of nasal mites of Chrysomus ruficapillus (Passeriformes: Icteridae) in southern Brazil. Iheringia, Série Zoologia (e2018025) 108: 1-7, DOI: 10.1590/1678-4766e2018025, URL: http://dx.doi.org/10.1590/1678-4766e2018025
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Bernardon, Fabiana Fedatto, Gertrud Müller, and Carolina Silveira Mascarenhas. "Ereynetidae (Acari: Prostigmata) in Chrysomus ruficapillus (Passeriformes: Icteridae) from Brazil." Revista Mexicana de Biodiversidad 86, no. 3 (2015): 829–31. http://dx.doi.org/10.1016/j.rmb.2015.05.010.
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Leidens, Danusa, Adalto Bianchini, Antonio Sergio Varela Junior, et al. "Effects of Experimental Lead Exposure on Testis of the Chestnut Capped Blackbird Chrysomus ruficapillus." Bulletin of Environmental Contamination and Toxicology 100, no. 3 (2018): 324–30. http://dx.doi.org/10.1007/s00128-017-2227-y.
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Matias, Carlos Alexandre Rey, Ingrid Annes Pereira, Maiara dos Santos de Araújo, et al. "Characteristics ofSalmonellaspp. Isolated from Wild Birds Confiscated in Illegal Trade Markets, Rio de Janeiro, Brazil." BioMed Research International 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/3416864.
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The prevalence ofSalmonellaspp. was investigated in 109 wild birds poached in the illegal wildlife trade in Rio de Janeiro; most of them are passerines from Thraupidae family and three from Psittacidae. One strain ofSalmonellaser. Typhimurium and two strains ofSalmonellaser. Panama were isolated from passerine species and all of them showed resistance to multiple antimicrobial drugs, like ampicillin, ceftriaxone, ceftiofur, tetracycline, gentamicin, nalidixic acid, ciprofloxacin, and enrofloxacin. PFGE showed 100% similarity among theSalmonellaser. Typhimurium strain isolated from a Temminck’s seedeater (Sporophila falcirostris) and the strains isolated from a human outbreak, in southern Brazil. The twoSalmonellaser. Panama strains isolated from two chestnut-capped blackbirds (Chrysomus ruficapillus) present in the same catch showed the same clonal origin and have never been associated with epizooties and human outbreaks. Potential for dissemination of resistantSalmonellathrough situations offered by captive management and the isolation of the same strain from wild birds and human sources may become a problem for the conservation of natural populations and to public health.
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Costa, Mariellen C., César A. B. Medolago, Amanda Murcia, and Mercival R. Francisco. "Reproductive parameters of the Chestnut-capped Blackbird, Chrysomus ruficapilus (Passeriformes: Icteridae), in a natural wetland from southeastern Brazil." Zoologia 37 (April 7, 2020): 1–5. http://dx.doi.org/10.3897/zoologia.37.e36026.
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The Chestnut-capped Blackbird, Chrysomus ruficapilus (Vieillot, 1819), is a common bird species in flooded areas of South America. Data on its reproductive parameters have been reported mainly for rice paddies from Uruguay and southern Brazil, where reproductive phenology might have been influenced by the chronology of agricultural activities. Here we provide reproductive data for a population in a natural marshland from São Paulo state, southeastern Brazil. A total of 45 active nests were monitored between December 2017 and April 2018. Clutch size was 2.8 ± 0.44. Incubation and nestling periods were respectively 11.8 ± 0.39, and 12.3 ± 0.75 days, and overall nesting success was 65%. The reproductive season lasted about five months, which is longer than that observed in rice paddies from southern Brazil. This suggests that the reproductive phenology has been underestimated before. Although clutch sizes were bigger in our study population than that from rice paddies from southern Brazil, nest survival was higher in the artificial habitat, suggesting that the Chestnut-capped Blackbird can obtain benefits from nesting in artificial habitats.
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Costa, Mariellen C., César A.B. Medolago, Amanda Murcia, and Mercival R. Francisco. "Reproductive parameters of the Chestnut-capped Blackbird, Chrysomus ruficapilus (Passeriformes: Icteridae), in a natural wetland from southeastern Brazil." Zoologia 37 (April 7, 2020): 1–5. https://doi.org/10.3897/zoologia.37.e36026.
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The Chestnut-capped Blackbird, Chrysomus ruficapilus (Vieillot, 1819), is a common bird species in flooded areas of South America. Data on its reproductive parameters have been reported mainly for rice paddies from Uruguay and southern Brazil, where reproductive phenology might have been influenced by the chronology of agricultural activities. Here we provide reproductive data for a population in a natural marshland from São Paulo state, southeastern Brazil. A total of 45 active nests were monitored between December 2017 and April 2018. Clutch size was 2.8 ± 0.44. Incubation and nestling periods were respectively 11.8 ± 0.39, and 12.3 ± 0.75 days, and overall nesting success was 65%. The reproductive season lasted about five months, which is longer than that observed in rice paddies from southern Brazil. This suggests that the reproductive phenology has been underestimated before. Although clutch sizes were bigger in our study population than that from rice paddies from southern Brazil, nest survival was higher in the artificial habitat, suggesting that the Chestnut-capped Blackbird can obtain benefits from nesting in artificial habitats.
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Del Barco, O. D., M. R. Paredes, A. H. Beltzer, and A. Berduc. "Ecología Alimentaria Estival del Varillero Común, Chrysomus Ruficapillus (Aves: Icteridae) y su Comparación con Otras Especies de Tordos." FABICIB 10 (December 11, 2006): 49–60. http://dx.doi.org/10.14409/fabicib.v10i1.790.
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Villaneda-Rey, Manuela, and Loreta Rosselli. "Abundancia del chamón parásito (Molothrus bonariensis, Icteridae) en 19 humedales de la Sabana de Bogotá, Colombia." Ornitología Colombiana, no. 11 (July 12, 2021): 37–48. https://doi.org/10.59517/oc.e245.
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The Shiny Cowbird (Molothrus bonariensis) is an avian brood parasite that could represent a threat for the survival of some endangered birds. To evaluate this potential problem for threatened or endemic wetland species, we estimated the abundance of Molothrus bonariensis and studied its behavior, its association with vegetation and its interspecific interactions in 19 wetlands located in the Bogotá area, Colombia. We found densities between 0 and 2.24 ind./ha, which are significantly lower than those of the Yellow-hooded Blackbird (Chrysomus icterocephalus), a known host. Urban wetlands presented higher cowbird densities than semiurban and rural wetlands together. The cowbirds showed a strong association with introduced trees between 10.1 and 15 m high, isolated from other trees and with medium foliage densities, as well as with stands of bulrush. Only 4.5% of the cowbirds observed were interacting with individuals of other species, mostly the blackbird, which sometimes evicted the cowbird from its territories. We conclude that the abundance of Molothrus bonariensis may not yet represent a serious threat for most species it parasitizes with the exception of Apolinar’s Wren (Cistothorus apolinari), which is in such a precarious situation that the presence of only a few cowbirds could be disastrous for its persistence.
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Sousa, Luara Lopes, and Welber da Costa Pina. "Abundância e Flutuação Populacional do Gênero Chrysomya (Robineau-Desvoidy, 1830) (Diptera: Calliphoridae) Durante as Fases de Decomposição da Carcaça de Sus scrofa (Linnaeus, 1758) na Região Nordeste do Brasil." Revista Brasileira de Zoociências 20, no. 1 (2019): 1–11. http://dx.doi.org/10.34019/2596-3325.2019.v20.24764.
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As espécies do gênero Chrysomya (Robineau-Desvoidy, 1830), Diptera: Calliphoridae, são conhecidas vulgarmente como moscas-varejeiras. Elas são importantes do ponto de vista epidemiológico, como vetores de microrganismos, porém desempenham papeis fundamentais para os processos ecológico e de importância forense. Assim, o presente estudo teve como objetivo conhecer a abundância e flutuação populacional do gênero Chrysomya durante as fases de decomposição da carcaça de Sus scrofa em um fragmento de Mata Atlântica no Extremo Sul da Bahia. Utilizou-se um pernil de porco com aproximadamente três quilogramas alocado na armadilha do tipo Shannon modificada. Foram realizadas nove coletas, distribuídas em quatro fases (fresca, gasosa, coliquativa e esquelética) de decomposição da carcaça de outubro a novembro de 2015. Foram identificadas 1299 moscas pertencentes a quatro espécies da família Calliphoridae: Chrysomya albiceps (Wiedemann, 1819), Chrysomya putoria (Wiedemann, 1830), Chrysomya megacephala (Fabricius, 1794) e Cochliomyia macellaria (Fabricius, 1775). O genêro Chrysomya foi mais abundante na fase gasosa. C. albiceps foi a espécie mais abundante, frequente e considerada dominante, apresentando correlação positiva com a quantidade de massa de putrilagem e negativa com presença de esqueleto na carcaça. As abundâncias das espécies C. megacephala e C. putoria não tiveram correlação com nenhum dos fatores analisados, com exceção da massa de putrilagem, que teve uma correlação positiva com C. putoria. Portanto, C. albiceps foi a espécie mais representativa e esteve presente ao longo de praticamente todo o processo de decomposição. De modo geral, o estágio de decomposição mais atrativo para as espécies deste gênero de Diptera foi o gasoso. Em contraposição, no estágio de esqueletização não houve a presença das mesmas. Ademais, foi evidenciado que a temperatura interna e a umidade interna tiveram pouca influência para atração dos Chrysomia, sendo a massa de putrilagem um importante fator para atração de duas, das três espécies do gênero analisadas neste trabalho.
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Kuncoro, Purwo, Emantis Rosa, Elly L. Rustiati, and Dedi Candra. "IDENTIFIKASI EKTOPARASIT PADA GAJAH SUMATERA (Elephas maximus-sumatranus) DI PUSAT LATIHAN GAJAH TAMAN NASIONAL WAY KAMBAS." Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati 4, no. 2 (2017): 51–54. http://dx.doi.org/10.23960/jbekh.v4i2.134.
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Gajah sumatera, Elephas maximus sumatranus dalam status kritis. Kendala yang dihadapi dalam upaya konservasi gajah sumatera binaan, salah satunya adalah infeksi ektoparasit. Kajian tentang jenis-jenis dan keanekaragaman ektoparasit yang menginfeksi gajah sumatera di Pusat Latihan Gajah Taman Nasional Way Kambas telah dilakukan pada bulan Maret-Mei 2017 di Pusat Latihan Gajah, Taman Nasional Way Kambas. Penentuan sampel gajah dilakukan secara Purposive sampling yaitu memilih gajah binaan yang kesehatannya kurang baik atau terindikasi terinfeksi ektoparasit. Tiga metode pengambilan sampel dilakukan meliputi metode rabaan, light trap, dan sweep net. Empat famili dan lima jenis ektoparasit yang teridentifikasi yaitu dari Famili Tabanidae dengan spesies Tabanus sp. 1, Tabanus sp. 2, Chrysops sp., Family Muscidae: Musca domestica, Famili Calliphoridae: Chrysomya sp. dan Haematomyzus elephantis dari Family Haematomyzidae.
Dissertations / Theses on the topic "Chrysomus"
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Dias, Priscila Alves. "Campylobacter spp., Salmonella enterica e Yersinia enterocolitica em aves silvestres e frangos de corte." Universidade Federal de Pelotas, 2015. http://repositorio.ufpel.edu.br:8080/handle/prefix/3282.
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Previous issue date: 2015-02-27<br>Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul - FAPERGS<br>Campylobacter jejuni, Salmonella enterica e Yersinia enterocolitica estão entre os micro-organismos mais comumente associados a toxinfecções alimentares envolvendo o consumo de produtos de origem animal. As aves têm sido identificadas como reservatórios, atuando como possíveis propagadoras desses micro-organismos. Neste contexto, o trabalho teve como objetivo verificar a ocorrência de Campylobacter spp., Y. enterocolitica e S. enterica em frangos de corte e em aves silvestres, identificar as espécies de aves silvestres presentes na região sul do Brasil e quais podem ser portadoras de patógenos, pesquisar a presença dos genes cdtA, cdtB e cdtC nos isolados de Campylobacter e identificar os sorotipos de Salmonella encontrados. As aves silvestres foram capturadas próximas a lavouras de arroz e aviários com redes de neblina e soltas após a coleta. Amostras de fezes, 200 de frangos e 214 de aves silvestres de várias espécies, foram coletadas diretamente da cloaca com uso de zaragatoas e processadas para pesquisa de Campylobacter spp., S. enterica e Y. enterocolitica. Campylobacter spp. foi isolado de Chrysomus ruficapillus (Garibaldi) e Zonotrichia capensis (Tico-tico), e Salmonella isolada de Sicalis flaveola (Canário-da-terra). De frangos foram isolados Campylobacter spp., S. enterica e Y. enterololitica. Os mesmos micro-organismos foram isolados de fezes de frangos e aves silvestres capturadas no entorno dos mesmos aviários, sugerindo que ocorra uma contaminação mutua entre os dois grupos de animais.<br>Campylobacter jejuni, Salmonella enterica and Yersinia enterocolitica are among the most commonly microorganisms associated with food intoxication involving the consumption of animal products. The birds have been identified as reservoirs, acting like possible propagators of these microorganisms. In this context, the study aimed to verify the occurrence of Campylobacter spp., Y. enterocolitica and S. enterica in broilers and wild birds, identify the species of wild birds present in south Brazil and which may harbor pathogens, search the presence of genes cdtA, cdtB and cdtC in isolated Campylobacter and identify serotypes Salmonella found. Wild birds were captured near rice fields and aviaries with mist nets and released after collection. Faeces samples, 200 of broilers and 214 of wild birds, were collected directly from the cloaca using swabs and processed for Campylobacter spp., S. enterica and Y. enterocolitica research. Campylobacter spp. was isolated from Chrysomus ruficapillus (Garibaldi) and Zonotrichia capensis (Tico-tico), and Salmonella isolated from Sicalis flaveola (Canário-da-terra). Campylobacter spp., S. enterica and Y. enterololitica were isolated from broilers. The same microorganisms were isolated from broilers and wild birds faeces captured in the vicinity of the same aviaries, suggesting a mutual contamination between the two groups of animals.
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Carvalho, Lucila Maria Lopes de. "Detecção e efeito de drogas no crescimento e desenvolvimento de formas imaturas e adultas de Chrysomya Albiceps (Wiedemann) e Chrysomia Putoria (Wiedemann) (Diptera: Calliphoridae), duas moscas varejeiras de interesse forense." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314314.
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Previous issue date: 2004<br>Resumo: A análise toxicológica de formas imaturas e adultas de insetos como amostra biológica, contribui em investigações criminais para uma estimativa do tempo de morte mais acurada e permite confirmar a presença ou ausência de substâncias químicas no cadáver. Duas espécies de moscas varejeiras, Chrysomya albiceps (Wiedemann) e Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae) foram selecionadas para o presente estudo e colonizadas em laboratório. Tais espécies foram escolhidas por serem úteis nas investigações médico-legais, haja vista, sua abundância e freqüência, tanto de imaturos como de adultos, em carcaças e cadáveres em decomposição, sendo consideradas boas indicadoras forenses (MOURA et alli, 1997; CARVALHO & LINHARES, 2001). Diazepam, cocaína, anfepramona e maconha foram as drogas utilizadas nos experimentos por serem amplamente consumidas em nosso país. O coelho comum foi utilizado como animal teste e foi submetido à concentração 2x letal de cada droga. Os animais foram sacrificados e sangue, fígado, coração, pulmão e urina foram coletados para a análise toxicológica, que foi feita utilizando-se um aparelho de cromatografia gasosa/espectrometria de massa (GC/MS). Uma parte do fígado foi utilizada como meio de criação das larvas de moscas durante um período de 54 horas. Durante esse período foram pesadas de 6 em 6 horas, sendo posteriormente coletadas e analisadas. Amostras de pupários e adultos também foram analisadas toxicologicamente. Fatores como tempo de desenvolvimento e crescimento das larvas, mortalidade e longevidade dos adultos foram estudados. Todas as drogas testadas influenciaram as fases de desenvolvimento das espécies estudadas, acelerando ou retardando tais fases, agindo de forma mais visível em algumas fases do que em outras. Foi possível detectar a presença de drogas tanto nas amostras biológicas dos coelhos como na dos dípteros. Os dados obtidos confirmam a relevância da utilização dos insetos nas investigações legais<br>Abstract: The toxicological analysis of biological samples such as imature stages and adults of insects can contribute to criminal investigations to improve the estimate the post mortem interval and to determine the absence or presence of a drug in the corpse. Two blow fly species: Chrysomya albiceps (Wiedemann) and Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae) were selected to the studies. Colonies of these two flies were stabilished in the laboratory. These species were chosen because they are commonly found visiting and breeding in decomposing corpses and carcasses, beeing, therefore, of forensic importance (MOURA et alli, 1997; CARVALHO & LINHARES, 2001). Diazepam, cocaine, anphepramone and marijuana were the drugs chosen for the experiments because of their heavy consuption among drug users in Brazil. Rabbits were used as test animals and were submited to twice the lethal dosages of different drugs to study the effects of these drugs on the development of the flies. Heart, liver, blood, and urine samples were taken for chromatographic analyse using a GC-MS equipment. A liver sample was used to rear the maggots and from hours 0 to 54 of exposition, larvae feeding on tissues were weighted and analised. The time required for pupariation and adult emergence was also determined. Some factors such as developmental time, mortality and longevity were also determined. All drugs influenced the developmental stages of both fly species, acelerating or delaying these stages related to control the flies. It was possible to detect the drug presence in fly and rabbit samples. The data confirm the importance of these insects as tools in criminal investigations<br>Doutorado<br>Doutor em Parasitologia
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Avancini, Rita Maria Pereira 1956. "Desenvolvimento nuclear de celulas troficas ovarianas de Chrysomys putoria (Diptera, Calliphoridae)." [s.n.], 1988. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317107.
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Previous issue date: 1988<br>Resumo: Os núcleos das células tróficas proximais de ovário de Chrysomya putoria, nas diferentes fases do desenvolvimento ovariano, foram examinados em preparações submetidas à reação de Feulgen. Tinha-se como objetivo conhecer as alterações cromatínicas/cromossômicas durante o desenvolvimento das células relacionadas ao processo de formação dos ovos. A alteração mais marcante encontrada foi a organização do material cromatínico sob a forma de cromossomos politênicos típicos. Nessa fase são vistas 6 unidades cromossômicas, nas quais, em determinado momento do seu processo de compactação, pode ser visualizado o padrão de bandas e interbandas característico de politênicos de dípteros. Após essa fase, os cromossomos tornam-se mais e mais encurtados, até que, quando todos apresentam praticamente o mesmo comprimento, os filamentos começam a se separar, originando numerosas unidades, de tamanhos diferentes entre elas que, espalham-se por todo o espaço nuclear. A partir daí, até o final do desenvolvimento, o núcleo tem aparência interfásica, apresentando um ponto heterocromático fortemente corado. A porção eucromática do cromossomo X sofre descompactação precoce, em relação aos autossomos e à sua própria porção heterocromática. Se a fêmea adulta estiver sob uma dieta de açúcar e água, os cromossomos politênicos podem permanecer como tal por um período muito mais longo do que quando sob dieta padrão. Através de microespectrofotometria mostrou-se que os núcleos tornam-se altamente endopoliplóides durante a ovogênese, atingindo o valor máximo de 2048 C, resultado de 10 ciclos de duplicação do DNA. Valores menores, a cada fase, foram obtidos nos núcleos distais, mostrando que há assincronia nos ciclos endorreplicativos das diferentes células tróficas do folículo. O volume ocupado pela cromatina corada aumenta cerca de 12 a 15 vezes durante o desenvolvimento. Os valores Feulgen-DNA bem como a área ocupada pelo corpo heterocromático não acompanham, proporcionalmente, o crescimento do restante da cromatina. As células epitelias do folículo mostraram tornarem-se também endopoliplóides, passando por até 4 ciclos de replicação, após o início da vitelogenese<br>Abstract: The nuclei of proximal nurse cells of the ovary of Chrysomya putoria in the different stages of ovarian development were examined in preparations submitted to the Feulgen reaction. The objective was to follow the chromatin/chromosomal alterations occurring during the development of those cells involved in the process of egg formation. The most marked alteration encountered was the organizatian of the chromatin in the form of typical polytene chromosomes. In this stage 6 chromosomes could be seen, in which, at a specific point in their process of compactation, the pattern of bands and interbands characteristic of dipteran polytene chromosomes, could be seen. After this stage the chromosomes became increasingly shorter until, when all were practically the same length, their constituent filaments began to separate and scatter throughout the nuclear space. From this point on, up to the end of development, the nucleus exhibited an interphasic appearance, presenting one strongly staining heterochromatic body. The euchromatic region of the X chromosome underwent premature decompactation as compared to the autosomes and to its own heterochromatic segment. If the adult female were maintained on a sugar and water diet, the polytene chromosomes would remain as such for a much longer period than when maintained on a standard diet. Microspectrophotometry showed that the nuclei became highly endopolyploidy during oogenesis, attaining a maximum value of 2048 C, resulting from 10 cycles of DNA duplication. At each stage, lower values were found in the distal nuclei, showing the existence of asynchrony in the endoreplicative cycles of the different nurse cells of the follicle. The volume occupied by the stained chromatin increased 12 or 15 times during development. Neither this Feulgen-DNA values nor the area occupied by the heterochromatic body proportionally followed the growth of the rest of the chromatin. The epithelial cells of the follicle also showed endopolyploidization, passing through up to 4 cycles of replication after the start of vitellogenesis<br>Doutorado<br>Doutor em Ciências
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Godoy, Wesley Augusto Conde. "Dinamica populacional de Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae)." [s.n.], 1992. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315868.
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Previous issue date: 1992<br>Resumo: Foi analisado neste estudo o efeito da densidade larval sobre a fertilidade e sobrevivência em Chrysomya putoria, com objetivo de caracterizar a dinâmica populacional desta espécie. Os parâmetros de fertilidade e sobrevivência obtidos de populações experimentais foram incorporados a uma equação de diferença finita de primeira ordem, escrita como ntH = _F(nt)S(ndnt, empregada para determinar a natureza da dinâmica popula cional de C. putorzoa<br>Abstract: The effect of larval density on fertility and survival of Chrysomya putoria was analyzed in this study in order to characterize the dynamics of experimental populations of this species. Estimates of fertility and survi vaI were incorporated into a first-order finite difference equation, written as ntH = _F(ndS(ndnt. The dynamic behavior of this equation was assessed to deduce the nature of the population dynamics of C. putoria<br>Mestrado<br>Parasitologia<br>Mestre em Ciências Biológicas
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Thierry, Dominique. "La diversité du peuplement de Chrysoperla carnea (Stephens) (Neuroptera:Chrysopidae) dans la moyenne vallée de la Loire : approches morphologique, génétique et électrophorétique." Pau, 1991. http://www.theses.fr/1991PAUU3019.
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Cette étude porte sur la diversité du peuplement de Chrysoperla Carnea Stephens (Neuroptera : Chrysopidae) dans la vallée moyenne de la Loire à partir d'un échantillonnage conduit dans différents sites. L'approche taxonomique descriptive classique permet de déceler trois formes extrèmes que nous dénommons Carnea Kolthoffi et Lucasina. Les méthodes de la taxonomie numérique permettent de préciser la typologie de ces trois formes à partir de critères morphologiques dont nous montrons les fondements génétiques. Le polymorphisme électrophorétique d'un système d'estérases nous suggère l'existence d'une forte structuration du peuplement au sein de la vallée moyenne de la Loire, qui pourrait être interformes ou intersites. En outre, la répartition spatio-temporelle des adultes traduit des différences écologiques évidentes entre les trois formes. Nous discutons les fondements et les origines de la structuration du peuplement : isolement reproductif (allochronique, comportemental), réintégration de populations primitivement séparées par migrations.
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Fernandes, Nelson Mesquita. "Acuidade visual e codificação neural da mosca Chrysomya megacephala." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-25032010-161256/.
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Descrevemos os processos de captura, criação e micromanipulação cirúrgica das moscas Chrysomya megacephala. Apresentamos os processos de geração de estímulo e registro da atividade dos dois neurônios H1 localizados na placa lobular de seu cérebro. Um primeiro resultado apresentado refere-se a acuidade de seu sistema visual. Desenvolvemos um procedimento para comparar sua taxa de disparos espontâneos com as respostas do neurônio H1 quando sujeito a estímulos de excitação e inibição. Mostramos que o sistema visual da mosca não está apenas adaptado a detectar grandes fluxos ópticos mas também, é capaz de detectar pequenas velocidades de aproximadamente 1, 5o.s-1 e de apenas 0,25o de amplitude. Estes valores mostram que a mosca é capaz de detectar deslocamentos angulares muito menores do que sua abertura omatidial, = 1 2o. Outro resultado apresentado é obtido ao estudarmos o processo de codificação-decodificação neural. Alguns sistemas sensoriais agem como um conversor analógico-digital, recebendo um estímulo S(t) e codificando-o em uma sequência de pulsos, spikes. O processo de decodificação da resposta neural consiste em receber este conjunto pulsos e gerar uma estimativa Se(t) do estmulo. Este processo requer a computação e subsequente inversão de funções de correlação de alta ordem. A dimensão das matrizes que representam estas funções pode se tornar proibitivamente grande. Apresentamos um eficiente método para reduzir estas funções de correlação. Esta aproximação tem baixo custo computacional, evita a inversão de grandes matrizes e nos da um excelente resultado para a reconstrução do estímulo. Testamos a qualidade de nossa reconstrução sobre estímulos de rotação e translação. A contribuição dos núcleos de segunda ordem para a reconstrução do estímulo é de apenas 8% da contribuição dos núcleos de primeira ordem. Entretanto, em instantes específicos, a adição destes núcleos pode representar uma contribuição de ate 100%. Finalmente, investigamos quais atributos do estímulo são codificados pelos neurônios H1. Nosso espaço de estímulos possui um conjunto da ordem de 2 × 1096 elementos. É impossível imaginar que o sistema formado pelos dois neurônios H1 seja capaz de codificar eficientemente esta enorme quantidade de elementos. É razoável considerar que este sistema seja ao menos capaz de codificar um atributo essencial do movimento, seu sentido - rotações horizontais para direita ou para esquerda. Desta forma, apresentamos dois estímulos distintos para a mosca, um no qual suas velocidades são retiradas de uma distribuição Gaussiana e outro que contem apenas o sentido deste movimento. Obtemos uma correlação da ordem de 80 - 90% entre as estimativas de ambos os estímulos, estimativas obtidas através do processo de reconstrução linear. Obtemos aproximadamente 85% de eficiência na predição do sentido deste movimento. Ao utilizarmos a Teoria da Informação, encontramos uma diferença de apenas 10% entre as taxas de informação transmitida sobre os estímulos Gaussiano e sua versão reduzida. Concluímos que a propriedade comum a estes dois estímulos, o sentido do movimento, é o atributo relevante a ser codificado pelos neurônios H1.<br>We describe the practices of capturing, creation, and microsurgery of the flies Chrysomya megacephala. We present the procedures of stimulus generation and recording of the activity of the two H1 neurons in the lobula plate of its brain. One first result presented is related to its visual system acuity. We developed a method to compare its spontaneous firing rate with the H1s responses to excitatory and inhibitory stimuli. We show that the flys visual system is not only adapted to detect large optic flows but is also capable to detect small velocities about 1, 5o.s-1 with just 0, 25o of amplitude. These values show that the fly is capable to detect angular displacements much smallers than its ommatidial aperture, = 1 2o. Another relevant result is attained studying the processes of neural encode-decode. Some sensorial systems act as an analog-to-digital conversor, these systems encode the input stimulus S(t) in a sequence of action potential, spikes. The decoding process of the neural response consists of capturing this set of spikes and to generate an estimate Se(t) of the stimulus. This process requires the computation and subsequent inversion of high order correlations functions. The dimension of the matrixes that represent these functions can become prohibitively large. We present an efficient method to reduce these correlation functions. This approximation has low computational cost, avoids large matrixes inversion and give to us an excellent result to the stimulus reconstruction. We tested the reconstruction quality of rotational and translational stimuli. The contribution of second order stimulus reconstruction kernels is just 8% of first order kernels contribution. However, in specific times, the addition of these kernels may represent a 100% contribution. Finally, we investigate which stimulus features are codified by the H1 neurons. The stimulus space has a set of about 2 × 1096 elements. It is impossible to imagine that the system formed by the two H1 neurons could be able to encode efficiently this amount of elements. It is reasonable to consider that this system is at least able to encode an essencial characteristic of movement, its direction horizontal rotations to the right or to the left. Therefore, we presente two different stimuli to the fly, one which have velocities taken from a Gaussian distribution and another which contains just the direction of this movement. We obtain about 80 - 90% correlation between the estimates of both stimuli, estimates obtained through linear reconstruction methods. We obtain about 85% of efficiency in the prediction of stimulus direction. We find just a 10% difference between the information rate transmitted about the Gaussian stimulus and its reduced version using Information Theory. We conclude that the common attribute of these stimuli, the direction of movement, is the relevant attribute to be codified by the H1 neurons.
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Tian, Feng 1980. "Extraction, purification, and characterization of the lipase from the viscera of porgy (Stenotomus chrysops)." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=111549.
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Lipase, from porgy (Stenotomus chrysops) viscera, was purified by polyethylene glycol (PEG) 1000 precipitation, followed by dialysis and affinity chromatography on EAH-Sepharose 48. The digestive lipase from porgy showed seasonal variation in activity with high activity found in late summer and early fall compared with a spring sample. Polyethylene glycol (PEG) precipitation fraction was used to characterize this enzyme using p-nitrophenyl palmitate (pNPP) as substrate. Porgy lipase did not behave like a bile salt activated/depended lipase because it was able to hydrolyze pNPP without bile salt (e.g., sodium cholate). Porgy lipase was stable within the pH range of pH 6.0-10.0, with an optimum activity at pH 8.5. The enzyme was quite stable at temperatures below 40°C, but lost its activity rapidly at temperatures above 40°C. The optimum activity for hydrolysis pNPP was at 40°C, but the enzyme also demonstrated relatively high activity at temperatures below 40°C (i.e., 10-40°C) as well. Detergents, Triton X-100, Tween 40 and Tween 80, at final concentrations of 0.5 mM and 1 mM were found to have inhibitory effects on porgy digestive lipase activity. However, all three tested detergents appeared to increase the activity of porgy digestive lipase at elevated temperatures (i.e., 60-80°C).
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Varzim, Fernanda Leme Silva Bastos. "Esterilização de ovos de moscas varejeiras Chrysomya putoria (Wiedemann, 1830 ) (Diptera: Calliphoridae) para utilização em Bioterapia." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314048.
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Previous issue date: 2005<br>Resumo: A bioterapia com larvas consiste na aplicação de larvas vivas de moscas em ferimentos de difícil cicatrização, apresentado como finalidade desbridar o tecido necrosado e promover o crescimento de novos tecidos. A bioterapia poderá ser seguramente utilizada, quando larvas estéreis, são obtidas com a criação e manutenção das moscas em laboratório. A esterilização dos ovos são fatores significantes na obtenção de larvas estéreis para utilização na bioterapia. No presente estudo moscas Chrysomya putoria (Calliphoridae), foram capturas, criadas e mantidas em laboratório sob condições apropriadas para esterilização dos ovos. Foi avaliada a viabilidade das larvas de C. putoria, utilizando oito substâncias químicas esterilizantes que foram previamente diluídos em concentrações variadas, onde ovos de C. putoria foram testados em variados tempos de exposição. Os esterilizantes testados foram Formoldeído, Hipoclorito de sódio Permanganato de potássio®, Digluconato de Clorexidina, Farmasept 500®, Farmasept 800®, Farmaseptplus ® e Ultrasept®. Todos esses esterilizantes testados com exceção do Digluconato de Clorexidina, resultaram larvas viáveis, com números de sobreviventes satisfatórios para bioterapia, mas somente o Hipoclorito de sódio 0,5%, Formaldeído 1% e Farmasept-plus na concentração de 1/4000 foram eficazes microbiologicamente e podem ser utilizadas com segurança<br>Abstract: The therapy with larvae on biotherapy, consists of applying live fly larvae to nonhealing wounds for the purpose of unbridling the necrotic tissue and promoting the growth of healthy tissue. The biotherapy could surely be used, when larvae, are obtained by rearing and maintenaning flies in the laboratory. The sterilization of eggs is a significant factor in the attainming larvae to be used in biotherapy. In the present study Chrysomya putoria flies (Diptera: Calliphoridae), are been captured, and kept in laboratory under appropriate conditions to obtain the eggs use in the experiments. The viability of the larvae of Chrysomya putoria was evaluated, using eight sterile chemical substances that had previously been diluted in different concentrations, the eggs of Chrysomya putoria were tested in different exposition times. The tested sterilizing substances whith Formaldehyde, Sodium hypochlorite, Potássium Permanganate, Chlorexidine Digluconate, Farmasept 500®, Farmasept 800®, Farmasept-plus® and Ultrasept®. All the tested substances with the exception of the of Chlorexidine Digluconate, had not affected the viability of the, resulting in satisfactory numbers of live
larvae. However only sodium hypochlorite 0.5%, Formaldehyde 1% and Farmasept-plus® in the concentration of 1/4000 were efficient icrobiolologically and can be safety used.<br>Mestrado<br>Parasitologia<br>Mestre em Parasitologia
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Trivia, Ana Letícia. "Análise do efeito de quimioterápicos em Chrysomya megacephala (Diptera : Calliphoridae)." reponame:Repositório Institucional da UFSC, 2017. https://repositorio.ufsc.br/xmlui/handle/123456789/178975.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biotecnologia e Biociências, Florianópolis, 2017.<br>Made available in DSpace on 2017-09-05T04:11:19Z (GMT). No. of bitstreams: 1
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Previous issue date: 2017<br>Uma das principais aplicações da entomologia forense médico-legal é a estimativa do intervalo pós-morte (IPM). Entretanto, certas substâncias químicas presentes em um cadáver podem interferir no desenvolvimento dos insetos que se alimentam dele, sendo importante conhecer estes efeitos para uma estimativa mais precisa do IPM. Entomotoxicologia é o ramo da entomologia forense que estuda o uso de insetos necrófagos na detecção e análise de drogas e outras substâncias em tecidos em decomposição, além de investigar seus possíveis efeitos no desenvolvimento destes artrópodes. Sendo assim, o objetivo principal deste trabalho foi investigar o impacto dos quimioterápicos ciclofosfamida (CF) e metotrexato (MTX) no desenvolvimento pós-embrionário de Chrysomya megacephala. Para isso, foram feitos experimentos in vitro com diferentes concentrações destas drogas incorporadas em carne bovina moída, simulando as dosagens injetadas em humanos que passam por quimioterapia. Foram feitos cinco tratamentos para a alimentação das larvas em cada experimento, sendo um controle negativo (água destilada). Para a CF foram utilizadas ½ Dose inicial intravenosa - DIIv (25 mg/kg), 1 DIIv (50 mg/kg), 2 DIIv (100 mg/kg) e 4 DIIv (200 mg/kg); e para o MTX foram utilizadas ½ Dose Inicial Intraperitoneal - DIIp (5 mg/kg), 1 DIIp (10 mg/kg), 2 DIIp (20 mg/kg) e 4 DIIp (40 mg/kg). Todos os tratamentos foram realizados em triplicata e mantidos a 25°C em estufa BOD. A cada 12 horas eram retiradas três larvas de cada tratamento, sacrificadas e o comprimento total de cada uma era medido com auxílio de um paquímetro digital, até o abandono da dieta para pupariação. Foi também realizado um experimento a parte sem manipulação das larvas para calcular as taxas de sobrevivência larval e total para cada tratamento, além da proporção sexual das moscas emergidas. ANOVA e teste Tukey foram realizados para comparar o efeito das drogas sobre o desenvolvimento de C. megacephala. Os resultados indicaram claramente que ambos os medicamentos afetaram o desenvolvimento e sobrevivência de C. megacephala, porém de forma heterogênea. Além disso, houve um desvio da razão sexual esperada nas larvas expostas ao MTX, emergindo uma quantidade significativamente maior de fêmeas do que machos. Estes fatores de interferência negativa devem ser considerados em casos de morte suspeita de pessoas que faziam uso destes medicamentos para que não haja uma subestimativa de IPM.<br><br>Abstract : One of the main applications of medico-legal forensic entomology is the estimation of the postmortem interval (PMI). However, certain chemical substances present in a cadaver can interfere in the development of the insects that feed on it, thus it is important to know these effects for a more accurate estimation of PMI. Entomotoxicology is the branch of forensic entomology that studies the use of scavenger insects in the detection and analysis of drugs and other substances in decomposing tissues, in addition to investigating their possible effects on the development of these arthropods. Therefore, the main purpose of this work was to investigate the impact of the chemotherapeutic drugs cyclophosphamide (CF) and methotrexate (MTX) on the post-embryonic development of Chrysomya megacephala. For this, in vitro experiments were performed with different concentrations of these drugs incorporated in minced beef, simulating the dosages injected in humans that undergo chemotherapy. Five treatments were done to feed the larvae in each experiment, with one as a negative control (distilled water). For CF, ½ initial intravenous dose - DIIv (25 mg/kg), 1 DIIv (50 mg/kg), 2 DIIv (100 mg/kg) and 4 DIIv (200 mg/kg) were used; and for MTX ½ Initial Intraperitoneal Dose - DIIp (5 mg/kg), 1 DIIp (10 mg/kg), 2 DIIp (20 mg/kg) and 4 DIIp (40 mg/kg) were used. All treatments were performed in triplicate and maintained at 25°C in a BOD chamber. At every 12 hours three larvae of each treatment were removed, sacrificed and the total length of each one was measured with the aid of a digital caliper until the abandonment of the diet for pupariation. A separate experiment without manipulation of the larvae was also performed to calculate the larval and total survival rates for each treatment, in addition to the sex ratio of the emerged flies. ANOVA and Tukey test were performed to compare the effect of drugs on the development of C. megacephala. The results clearly indicated that both drugs affected the development and survival of C. megacephala, but in a heterogeneous manner. In addition, there was a deviation in the expected sex ratio in MTX-exposed larvae, with significantly more females than males emerging. These negative interference factors should be considered in cases of suspected death of people using these drugs so that there is no underestimation of PMI.
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Silva, Eveline da Costa [UNESP]. "Aspectos demográficos de Chrysomya albiceps (W.) (Diptera: Calliphoridae): análise de sensibilidade dos fatores de mortalidade no estágio imaturo e parâmetros demográficos de adultos." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/108746.
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000767144.pdf: 1411534 bytes, checksum: 16637fa1e066c01edc18c81633118ec7 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Em seu ambiente natural, muitas espécies animais, invertebrados e vertebrados, utilizam substratos discretos e efêmeros para sua alimentação e postura de ovos ou larvas, e dentre elas está a espécie de mosca-varejeira Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae). Introduzida acidentalmente no continente americano em meados da década de 70, tem causado o declínio de populações de califorídeos nativos como Lucilia eximia e Cochliomyia macellaria. Em moscas-varejeiras, o período em que ocorre a maior limitação de recursos alimentares é durante o estágio larval, com indivíduos competindo intensamente pelos recursos na tentativa de ingerir a maior quantidade de alimento antes que os recursos se esgotem por completo. Os resultados da competição por recursos alimentares limitados durante o estágio imaturo podem ser vistos em parâmetros como sobrevivência, fecundidade e tamanho dos adultos resultantes, e estes têm efeitos diretos sobre a dinâmica populacional da espécie envolvida. Portanto, a densidade populacional de imaturos no substrato alimentar se torna um fator primordial nos estudos sobre a dinâmica populacional, pois influencia diretamente a competição e, consequentemente, a variação desses parâmetros. Neste estudo, foram analisados aspectos da ecologia populacional de C. albiceps utilizando populações experimentais. Os resultados do presente estudo indicam que a densidade larval inicial tem influência sobre aspectos da demografia e sobre a viabilidade e fecundidade de populações de C. albiceps; altas densidades iniciais podem melhorar o processo de alimentação nas larvas e diminuir o tempo de desenvolvimento no estágio imaturo. A mortalidade larval inicial tem grande influência na expectativa de vida no momento da emergência dos adultos. A densidade 200 foi a densidade ótima para o desenvolvimento da espécie. Adultos das densidades 800 e 100 apresentaram baixa sobrevivência e expectativa de...<br>In their natural environment, many invertebrates and vertebrates use discrete and ephemeral substrates for feeding and laying their eggs or larvae, and among them, could be cited the blowfly Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae). Accidentally introduced in the Americas in the mid -1970s, C. albiceps has caused the population decline in native species as Lucilia eximia and Cochliomyia macellaria. For blowflies, the larval stage is the main period in which competition for limited food resources occurs, with individuals competing intensely for resources in an attempt to ingest as much food as possible before the complete depletion of the resources. The result of this competition is seen on population parameters as survival, fecundity and size of the resulting adults, with direct effects on the population dynamics of the species involved. Therefore, the population density of immature in the food substrate becomes a primary factor in studies about population dynamics, because it influences directly the competition and hence the variation of these population parameters. In this study were analyzed aspects of the ecology of C. albiceps using experimental populations. The results of this study indicate that the initial larval density influences the demography and the viability and fecundity of populations of C. albiceps ; initial high density can improve the feeding process and reduce development time at the immature stage. The initial larval mortality has great influence on life expectancy at the time of adult emergence. 200 was optimal density for developing species. Adults from the densities 800 and 100 had low values for survival and life expectancy. Females were longer-lived than males (e0 higher for females), and males tend to die more in the early ages (H higher for males). At density 800, food shortages resulted in small adults and females with low fecundity. In the opposite situation, density 100, in which the quantity...
Books on the topic "Chrysomus"
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Skaltsas, Theodōros. Ho chrysous aiōn tēs aretēs: Aristotelikē ēthikē. Ekdoseis Alexandreia, 1993.
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Papastamou, Maria. Chrysos kai kosmēma, syntomē historikē anadromē. M. Papastamou, 1988.
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Yukio, Mishima. O naos tou chrysou peripterou: Mythistorēma. Ekdoseis Kastaniōtē, 1999.
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Avraamidou-Ploumpē, Vivian. Hē psychē tou chrysou: Historiko mythistorēma. Ekdoseis Alexandreia, 2009.
Find full textBook chapters on the topic "Chrysomus"
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Aisyah Binti Shamsuddin, Siti, Nurul Farhana Binti Zulkifli, Farida Zuraina Binti Mohd Yusof, Khairulmazidah Binti Mohamed, and Rumiza Binti Abd Rashid. "Influence of diclofenac on development rates of forensic blowfly chrysomya megacephala." In Bioresources Technology in Sustainable Agriculture. Apple Academic Press, 2018. http://dx.doi.org/10.1201/9781315365961-11.
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Agrawal, Sarita, and Shubhra Malviya. "Allozyme Diversity Inforensically Important Indian Species Chrysomya Megacephala (Fabricius) (Diptera: Calliphoridae)." In Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022). Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-020-6_22.
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AbstractThe application of electrophoretic technique to study allozyme enzymatic variation has been extensively used to explore hidden genetic variability in natural population and laboratory colonies of many calliphorid flies. Genetic variation at three enzyme loci viz., Alkaline phosphatase (APH), Xanthin dehydrogenase(XDH)and Malate dehydrogenase (MDH) in laboratory colonies of Chrysomya megacephalawere investigated by using polyacrylamide gel electrophoresis (PAGE). In APH three zones of activity were observed. Which have been designated as APH-1, APH-2, and APH-3 in order of increasing anodal migration. The electrophoretic phenotypes with two codominant alleles were observed at APH-3loci. In MDH and XDH only one zone of activity was observed.
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Oosterwijk, Sophie. "Swaddled or Shrouded? The Interpretation of ‘Chrysom’ Effigies on Late Medieval Tomb Monuments." In Medieval Church Studies. Brepols Publishers, 2007. http://dx.doi.org/10.1484/m.mcs-eb.3.1880.
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Malviya, Shubhra, and Sarita Agrawal. "RAPD-PCR-Based Genetic Relationships Among Three Forensically Important Calliphorid Species (Diptera: Calliphoridae)." In Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022). Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-020-6_24.
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AbstractMolecular genetic markers have been effectively used to analyze genetic relationships and diversity among different groups of dipterans. The emergence of Polymerase Chain Reaction (PCR) facilitated analysis of molecular markers e.g., Random Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR), has contributed a great deal in resolving the genetic relatedness in many dipterans of medical, veterinary, and economic importance. In the present study, an attempt has been made to explore the phylogenetic relationships among three calliphorid species, namely Hemipyrellia pulchra (Weidemann) and Lucilia cuprina (Weidemann), Chrysomya megacephala (Fabricius), employing Random Amplified Polymorphic DNA - Polymerase Chain Reaction (RAPD-PCR) technique using twenty random decamer primers. Complete genomic DNA was isolated from the three species and amplified by PCR using twenty random decamer primers. A total of 285 bands ranging from 141 bp to 2648 bp were generated. Tools for population genetic analysis (TFPGA) software was used to calculate genetic identity among the three species. A close relationship among the three species is reflected by high values of mean Genetic identity (0.661–0.713).
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"Chrysomia bezziana." In Encyclopedia of Parasitology. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-43978-4_610.
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"Chrysomya megacephala." In Encyclopedia of Parasitology. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-43978-4_611.
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"Les chrysopes." In Macrocosmos. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2792-3.c006.
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"Les chrysopes." In Macrocosmos. EDP Sciences, 2022. https://doi.org/10.1051/978-2-7598-2791-6.c006.
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"Chrysops Species." In Encyclopedia of Parasitology. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-43978-4_612.
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Kouam, Marc K., and Joseph Kamgno. "The African Chrysops." In Biological Control of Pest and Vector Insects. InTech, 2017. http://dx.doi.org/10.5772/67111.
Full textConference papers on the topic "Chrysomus"
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Donnarumma, Marco. "Hypo chrysos." In the 7th International Conference. ACM Press, 2013. http://dx.doi.org/10.1145/2460625.2460705.
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Rashid, Rumiza Abd, Nur'Atiqah Arifuddin, and Nazni Wasi Ahmad. "Blowfly, Chrysomya megacephala as an alternative specimen in determination of gunshot residue." In 2012 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA). IEEE, 2012. http://dx.doi.org/10.1109/isbeia.2012.6422946.
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Rashid, Rumiza Abd, Nurul Farhana Zulkifli, Reena Abd Rashid, Siti Fairuz bt Rosli, Sharifah Hawzah Syed Sulaiman, and Nazni Wasi Ahmad. "Effects of Ketum extract on blowfly Chrysomya megacephala development and detection of mitragynine in larvae sample." In 2012 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA). IEEE, 2012. http://dx.doi.org/10.1109/isbeia.2012.6422898.
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GOMES SMANIA, THAMIRIS, PATRICIA JACQUELINE THYSSEN, FÁBIO REZENDE, and ARÍCIO XAVIER LINHARES. "Evaluation of the growth rate of immature of Chrysomya albiceps (Diptera: Calliphoridae) raised in laboratory under different food substrates." In XXIV Congresso de Iniciação Científica da UNICAMP - 2016. Galoa, 2016. http://dx.doi.org/10.19146/pibic-2016-51415.
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Tamalsir, Dylan, Anton Budhi Darmawan, and Dwi Utami Anjarwati. "Analysis of the Effectiveness of Chrysomya sp. Maggot Extract in Inhibiting the icaA and icaD Genes Regulator Staphylococcus epidermidis Biofilm." In 1’s t Jenderal Soedirman International Medical Conference (JIMC) in conjunction with the Annual Scientific Meeting (Temilnas) Consortium of Biomedical Science Indonesia (KIBI ). SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0010488801210125.
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Hidayati, Rizka, Ari Asnani, Muhamad Salman Fareza, and Dwi Utami Anjarwati. "In Vitro Study of Reduction of Oral Enterococcus faecalis Biofilm on Application of Combination of Chrysomya megacephala Maggot Extract and Sodium Hypochlorite." In 1’s t Jenderal Soedirman International Medical Conference (JIMC) in conjunction with the Annual Scientific Meeting (Temilnas) Consortium of Biomedical Science Indonesia (KIBI ). SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0010488400980103.
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Safra, Elyara, Patricia Thyssen, Bruna Campos, Giuliana Portella, and Mariana da Silva. "3D models of a third instar larva and an adult of Chrysomya megacephala (Insecta, Diptera, Calliphoridae): a didactic, motivating and inclusive education view." In Congresso de Iniciação Científica UNICAMP. Universidade Estadual de Campinas, 2019. http://dx.doi.org/10.20396/revpibic2720191896.
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Terto, Agatha Bastos Sant’Ana da Silva, José Augusto Albuquerque Dos Santos, Rebecca Leal Caetano, César Carriço da Silva, and Zeneida Teixeira Pinto. "AVALIAÇÃO DA ATIVIDADE BIOINSETICIDA DE EXTRATOS ETANÓLICOS DE FOLHAS E DE SEMENTES DE Moringa oleifera (MORINGACEAE) SOBRE O DESENVOLVIMENTO PÓS-EMBRIONÁRIO DE Chrysomya putoria (DIPTERA: CALLIPHORIDAE) EM LABORATÓRIO." In I Congresso Brasileiro de Parasitologia Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/683.
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Introdução: Os dípteros muscóides apresentam grande importância em medicinaveterinária e saúde pública por serem carreadores de patógenos e causadores de miíases. O uso de inseticidas químicos tem sido utilizado atualmente como principal método de controle dessas moscas, são altamente eficazes, mas podem causar danos ao meio ambiente, aos animais domésticos e aos seres humanos. Uma forma alternativa a este tipo de controle são os bioinseticidas, produzidos a partir de metabólitos secundários de plantas, os quais são rapidamente degradados no meio, minimizando riscos à saúde. Objetivo: Este estudo teve como objetivo avaliar o efeito de extratos etanólicos de folhas e de sementes de Moringa oleifera sobre o desenvolvimento pós-embrionário de C. putoria. Material e métodos: Para os testes foram utilizadas larvas recém eclodidas (L1) tratadas com diferentes concentrações de extratos etanólicos de sementes e de folhas de M. oleifera (5 mg/L, 10 mg/L, 25 mg/L, 50 mg/L, 75 mg/L e 100 mg/L). Foram utilizadas 3 réplicas (30 (L1)) para cada concentração, um grupo controle (sem substância) e um grupo controle com DMSO. As larvas recém eclodidas foram tratadas topicamente com a solução com o auxílio da pipeta, sendo usado 1μL/neolarva. Os parâmetros analisados foram o peso das larvas maduras (L3), duração do período larval, pupal e da fase de neolarva a adulto, assim como a viabilidade dos estágios de desenvolvimento, e a razão sexual. Resultados: Os resultados mostraram que os extratos de folhas e de sementes de M. oleifera causaram efeitos semelhantes em todas as concentrações testadas, atrasando o desenvolvimento pós-embrionário e reduzindo o peso larval. Quanto a mortalidade, no período de neolarva a adulto as concentrações de 50, 75 e 100 mg/L dos extratos de folhas e de sementes de M. oleifera se mostraram eficazes, matando acima de 20%. O controle sem/com DMSO não apresentaram mortes em nenhum dos estágios pós-embrionários. Conclusão: Os extratos de folhas e de sementes de M. oleifera se mostraram uma alternativa viável para o controle da mosca da espécie C. putoria.
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Lucena, Maria Dayanne Lima de, Tatiana Da Silva Pereira, Alany Pedrosa Gonçalves, Karina Dias Silva, and Leandro Melo De Sousa. "ESPÉCIES DE PEIXES DA FAMÍLIA LORICARIIDAE COM POTENCIAL ORNAMENTAL, EM DUAS REVERSAS EXTRATIVISTA NA TERRA DO MEIO– PA." In I Congresso Brasileiro de Biodiversidade Virtual. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1486.
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Introdução: O rio Xingu é conhecido por apresentar uma das mais altas riquezas de espécies de peixes da região Amazônica. Dentre as famílias de peixes que se destacam na bacia do rio Xingu, está a família Loricariidae representada por 60 espécies. Esse grupo é de fundamental importância para atividade da pesca ornamental na região e tem gerado renda para os pescadores por décadas. Objetivos: Nosso objetivo foi avaliar a riqueza e composição de espécies da família Loricariidae nas Reversas Extrativistas do rio Xingu e rio Iriri. Material e Métodos: As coletas ocorreram no ano de 2016 em dois períodos: no período chuvoso (janeiro e fevereiro) as espécies foram capturadas por meio de equipamento de mergulho com ar comprimido e uso de tarrafas; e na seca (agosto e setembro), os peixes foram coletados por mergulho livre, tarrafa e vaqueta (instrumento de madeira, confeccionado pelos pescadores para facilitar a captura dos peixes). Resultados: Foram capturados 6.059 exemplares distribuídos em 32 espécies ou morfotipos de Loricariidae. Do total, 24 espécies foram comuns as duas RESEXes, são elas: Ancistomus feldbergae, Ancistrus sp.2, Ancistrus sp.3, Aphanotorulus aff. emarginatus, Baryancistrus aff. niveatus, Baryancistrus chrysolomus, Baryancistrus xanthellus, Farlowella amazonum, Hopliancistrus wolverine, Hopliancistrus xikrin, Hypostomus gr. plecostomus, Leporacanthicus heterodon, Panaque armbrusteri, Parancistrus aurantiacus, Peckoltia sabaji, Peckoltia vittata, Pseudacanthicus pirarara, Pseudancistrus asurini, Scobinancistrus aureatus, Scobinancistrus pariolispos, Scobinancistrus sp., Spatuloricaria tuira, Spectracanthicus punctatissimus, Spectracanthicus zuanoni. Três espécies foram exclusivas da RESEX do rio Iriri: Ancistrus ranunculus, Ancistrus sp.4, Rineloricaria sp; e 5 espécies ocorreram apenas na RESEX do rio Xingu: Ancistrus cf. ranunculus L255, Ancistrus sp.1, Ancistrus sp.5, Ancistrus sp.6, Hypostomus gr. cochliodon. Conclusão: O número de espécies encontradas neste estudo representa em média 60% do total de espécies de Loricariidae já registrado para a bacia do rio Xingu. Dessa forma, destaca as reservas como importantes áreas para a conservação da ictiofauna da região, apontando assim a importância das diferentes áreas de proteção estabelecidas ao longo da bacia do rio Xingu. Essas áreas protegidas, embora estabelecidas com prioridade na conservação da biodiversidade terrestre, tem assegurado a preservação de organismos aquáticos, em especial a rica ictiofauna presente nessas áreas.
Reports on the topic "Chrysomus"
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สิริยะเสถียร, เผด็จ, อุษาวดี ถาวระ та อภิวัฏ ธวัชสิน. การก่อตั้งสายพันธุ์แมลงวันหัวเขียว (Lucilia sericata) เพื่อใช้สำหรับวิธีการรักษาแผลด้วยหนอนแมลงวัน : รายงานการวิจัย (ร่าง). จุฬาลงกรณ์มหาวิทยาลัย, 2009. https://doi.org/10.58837/chula.res.2009.19.
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การสำรวจแมลงวันหัวเขียวใน 6 จังหวัดของประเทศได้แก่ กรุงเทพมหานคร, พิษณุโลก, เชียงใหม่, ตาก, ชุมพร และบุรีรัมย์ การศึกษาทางสัณฐานวิทยาพบเป็นแมลงวันหัวเขียว ชนิด Chrysomya megacephala, Chrysomya rufifacies และ Lucilia cuprina และการศึกษาทางอณูชีววิทยาของยีน cytochrome oxidase ช่วยยืนยันว่าเป็น 3 species นี้ นอกจากนี้การใช้เทคนิค Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) ยังสามารถช่วยจำแนกแมลงวันหัวเขียวทั้ง 3 ชนิดนี้ได้ PCR ให้ผลผลิต 1324 เบส ในแมลงวันหัวเขียวทั้ง 3 ชนิด การย่อยผลิตภัณฑ์ PCR ด้วย Taqᵅ I and VspI ให้รูปแบบที่จำเพาะในแมลงวันหัวเขียวแต่ละชนิด ประโยชน์ของการใช้เทคนิค PCR-RFLP นี้นอกจากจะช่วยในการสำรวจแมลงวันหัวเขียวง่ายขึ้นแล้วยังสามารถนำมาใช้ประโยชน์ทางนิติกีฎวิทยาอีกด้วย ได้แก่การนำมาใช้ประมาณเวลาตาย (post mortem interval (PMI) ส่วน Lucillia sericata ไม่สามารถพบได้จากการศึกษาครั้งนี้ อย่างไรก็ตามได้ทำการทดลองเลี้ยงแมลงวันหัวเขียว Chrysomya megacephala ด้วยอาหารเทียม พบว่าหนอนแมลงวัน Chrysomya megacephala สามารถเจริญในอาหารเทียมได้และไม่พบแบคทีเรียเจริญในอาหารเทียมนี้ และหนอนแมลงวันหัวเขียวสามารถเจริญจนเข้าสู่ระยะดักแด้ได้ แสดงว่าอาหารเทียมที่ใช้ในการทดลองนี้เหมาะสำหรับใช้เลี้ยงหนอนแมลงวันหัวเขียว
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Kumar, Amit, Sourabh Singh, Rashmi Verma, and Mohd Yunus. Eviscerated Socket Challenge: Managing Orbital Myiasis in Emergency. Science Repository, 2024. http://dx.doi.org/10.31487/j.ijscr.2024.01.02.
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Maggots, larvae of diptera flies, thrive in environments with feces and decaying matter. They may infest vertebrates, causing myiasis. Human cases are sporadic and prevalent in rural areas. Orbital myiasis is the most severe form, encompassing extensive infestation of orbital tissue and progressing rapidly, potentially destroying orbital tissues within days. A 38-year-old male presented with severe pain and swelling in his right eye for six months, which increased over the past ten days. Ophthalmic examination revealed no light perception in the right eye, with redness, edema, and a 6 × 4 cm wound filled with larvae. CT and MRI scans confirmed orbital myiasis, leading to exenteration and successful removal of 301 larvae-the patient was diagnosed with necrotizing fasciitis. Parasite examination identified chrysomya species. Diverse management in ophthalmomyiasis, with successful single-extraction and oral ivermectin use, underscores tailored approaches. Reported cases aid understanding, emphasizing early identification and vigilance.
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Noga, Edward J., Angelo Colorni, Michael G. Levy, and Ramy Avtalion. Importance of Endobiotics in Defense against Protozoan Ectoparasites of Fish. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586463.bard.
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Infectious disease is one of the most serious causes of economic loss in all sectors of aquaculture. There is a critical need to understand the molecular basis for protection against infectious disease so that safer, more reliable and more cost-effective strategies can be designed for their control. As part of this effort, the major goal of our BARD project was to determine the importance of endobiotics as a defense against protozoan ectoparasites in fish. Endobiotics, or antimicrobial polypeptides, are peptides and small proteins that are increasingly recognized as having a vital role in the innate defense of virtually all animals. One objective of our BARD project was to determine the antiparasitic potency of one specific group of endobiotics that were isolated from hybrid striped bass (Morone saxatilis x M chrysops). We found that these endobiotics, which we had previously named histone-like proteins (HLPs), exhibited potent activity against Amyloodinium and that the putative levels of HLPs in the skin were well within the levels that we found to be lethal to the parasite in vitro. We also found evidence for the presence of similar antibiotics in sea bream (Sparus aurata) and Mediterranean sea bass (Dicentrarchus labrax). We also examined the effect of chronic stress on the expression of HLP in fish and found that HLP levels were dramatically decreased after only one week of a crowding/high ammonia sublethal stress. We also began to explore the feasibility of upregulating endobiotics via immunostimulation. However, we did not pursue this objective as fully as we originally intended because we spent a much larger effort than originally anticipated on the last objective, the attempted isolation of novel endobiotics from hybrid striped bass. In this regard, we purified and identified four new peptide endobiotics. These endobiotics, which we have named piscidins (from "Pisces" meaning fish), have potent, broad-spectrum activity against a number of both fish and human pathogens. This includes not only parasites but also bacteria. We also demonstrated that these peptides are present in the mast cell. This was the first time that the mast cell, the most common tissue granulocyte in vertebrates, was shown to possess any type of endobiotic. This finding has important implications in explaining the possible function of mast cells in the immune response of vertebrates. In summary, the research we have accomplished in this BARD project has demonstrated that endobiotics in fish have potent activity against many serious pathogens in aquaculture and that there is considerable potential to use these compounds as stress indicators in aquaculture. There is also considerable potential to use some of these compounds in other areas of medicine, including treatment of serious infectious diseases of humans and animals.