Esse trabalho objetivou investigar o potencial dos extratos aquosos das cascas de barbatimão (Stryphnodendron adstringens (Mart.) Coville) e sangra dágua (Croton urucurana Baill.) como corante natural têxtil. Os extratos foram caracterizados quanto ao pH, o teor de sólidos totais e a estabilidade no armazenamento. Os extratos foram liofilizados e avaliados por espectroscopia no infravermelho com transformada de Fourier (FTIR), termogravimetria (TG) e calorimetria exploratória diferencial (DSC). Foram realizados experimentos preliminares de tingimento em tecidos multifibra e em diferentes concentrações dos extratos. A partir desses experimentos, foram definidas as variáveis temperatura, tempo e concentração do extrato para o estudo do tingimento por planejamento experimental 2³, em tecidos 100 % algodão e 100 % lã. Os tecidos tingidos em condição otimizada, sem e com mordentes metálicos, foram avaliados quanto à cor, a solidez de cor à luz, à lavagem, à fricção e ao suor. Os efluentes foram coletados e caracterizados quanto ao pH, turbidez, sólidos totais dissolvidos (STD), oxigênio dissolvido, demanda bioquímica de oxigênio (DBO), demanda química de oxigênio (DQO) e teores de ferro e alumínio dissolvidos. Foram conduzidos ensaios bacteriológicos nos extratos aquosos, etanólicos e liofilizados e nos tecidos tingidos. Os resultados das análises por FTIR indicaram a presença de taninos, lignina e celulose nos extratos. Pelo estudo de estabilidade os extratos possuem duração de 42 dias. Nas análises por TG, os extratos obtiveram perda de massa total similares e não geraram alteração na degradação dos tecidos tingidos. Na análise por DSC os extratos obtiveram picos endotérmico e exotérmixo em temperaturas próximas. As melhores condições para o tingimento dos tecidos avaliados é em 98 °C, por 60 min e na concentração de 100 % do extrato. A solidez de cor dos tecidos tingidos variou de baixa a excelente. Os extratos liofilizados apresentaram propriedades antibacterianas. Os efluentes apresentaram valores de STD, DBO, DQO e alumínio e ferro dissolvidos acima dos limites determinados pela legislação nacional. De modo geral, os resultados obtidos indicam que os extratos das cascas de barbatimão e sangra dágua são promissores para serem utilizados como corantes naturais têxteis / This research aimed to investigate the potential of aqueous extracts of barbatimão (Stryphnodendron adstringens (Mart.) Coville) and sangra dágua (Croton urucurana Baill.) bark as natural textile dyes. The extracts were characterized for pH, total solids content and storage stability. The extracts were lyophilized and evaluated by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG) and differential scanning calorimetry (DSC). Preliminary dyeing experiments were carried out on multifiber fabrics and at different extracts concentrations. From these experiments, the variables temperature, time and concentration of the extract for the study of dyeing by experimental design 2³ in 100 % cotton and 100 % wool fabrics were defined. Fabrics dyed in optimized condition, using metal mordants and with no mordents, were evaluated by colorimetry, color fastness to light, wash, rubbing and perspiration. The effluents were collected and characterized by pH, turbidity, total dissolved solids (TDS), dissolved oxygen, biochemical oxygen demand (BOD), chemical oxygen demand (COD) and dissolved iron and aluminum contents. Bacteriological tests were conducted on aqueous, ethanolic and lyophilized extracts and on dyed fabrics. The results of the FTIR analysis indicated the presence of tannins, lignin and cellulose in the extracts. By the stability study were found that the extracts have a duration of 42 days. In the TG analyzes, the extracts obtained similar total mass loss and did not generate alteration in the degradation of the dyed fabrics. In the DSC analysis the extracts obtained endothermic and exotherm peaks at near temperatures. The optimized dyeing for the evaluated fabrics is at 98 °C for 60 min and at the concentration of 100 % of the extract. The color fastness of the dyed fabrics ranged from low to excellent. Lyophilized extracts showed antibacterial properties. The wastewater showed values of TDS, BOD, COD and aluminum and iron dissolved above the limits determined by national legislation. In general, the results indicate that barbatimão and sangra dágua extracts are promising for use as natural textile dyes

Made available in DSpace on 2017-07-10T14:38:22Z (GMT). No. of bitstreams: 1 Daiane Pilatti.pdf: 1850290 bytes, checksum: 618af49a9d02126676712eced8763a0c (MD5) Previous issue date: 2012-09-17 / Allelopathy is an ecological phenomenon defined as the chemical, positive or negative interference of compounds produced by plants on growth and development of other plants. This phenomenon can modify the structure of plant communities, significantly influencing processes such as ecological succession and species dominance. However, the production of compounds is often affected by environmental conditions, and the allelopathic response of the same species can be differentiated depending on the habitat that is. Thus, the objective of this study was to assess whether different forest types within the State of Paraná can influence the allelopathic effect of native plant species recommended for restoration. The plant species were collected from two forest types: semideciduous forest and Tropical Rainforest. Representing the group of pioneer species were collected J. micrantha, C. and M. pachystachya bimucronata; The group was composed of secondary species by species S. terebinthifolius and C. fissilis; climax species was chosen as the E. edulis. The chemical composition of the collected individuals and allelopathy on germination and early development of pioneer species in secondary and climax species, and secondary, in the climax species, simulating the ecological succession that occurs in the field was analyzed. Species showed differences in the concentration of allelopathic compounds, but the species S. terebinthifolius was the only one to present qualitative difference between chemical compounds. It was found that these species may show differences in potential allelopathic effect and, depending on the forest type in which they were collected, mainly as to speed germination and seedling height field. Finally, the collected species in semideciduous forest were more chemically aggressive than the same species collected in Dense Forest, within the State of Paraná / A alelopatia é um fenômeno ecológico definido como a interferência química, positiva ou negativa, de compostos produzidos pelas plantas sobre o crescimento e desenvolvimento de outras plantas. Este fenômeno pode modificar a estrutura de comunidades vegetais, influenciando significativamente processos como sucessão ecológica e dominância de espécies. Porém, a produção dos compostos é frequentemente afetada por condições ambientais, e a resposta alelopática de uma mesma espécie pode ser diferenciada dependendo da habitat que se encontra. Desta forma, o objetivo deste trabalho foi avaliar se diferentes formações florestais dentro do Estado do Paraná podem influenciar o efeito alelopático de espécies nativas recomendadas para restauração vegetal. As espécies vegetais foram coletadas em duas formações florestais: Floresta Estacional Semidecidual e Floresta Ombrófila Densa. Representando o grupo das espécies pioneiras foram coletadas J. micrantha, C. pachystachya e M. bimucronata; o grupo de espécies secundárias foi composto pelas espécies S. terebinthifolius e C. fissilis; como espécie clímax foi escolhido o E. edulis. Foi analisada a composição química dos indivíduos coletados e a alelopatia na germinação e desenvolvimento inicial das espécies pioneiras sob as espécies secundárias e clímax, e das secundárias, sob a espécie clímax, simulando a sucessão ecológica que ocorre em campo. As espécies apresentaram diferença na concentração dos compostos alelopáticos, mas foi a espécie S. terebinthifolius a única a apresentar diferença qualitativa entre os compostos químicos. Constatou-se que as espécies estudadas podem apresentar diferença no potencial e efeito alelopático, dependendo da formação florestal em que foram coletadas, principalmente quanto à velocidade na germinação e altura das mudas em campo. Por fim, as espécies coletadas na Floresta Estacional Semidecidual foram mais quimicamente agressivas do que as mesmas espécies coletadas na Floresta Ombrófila Densa, dentro do Estado do Paraná.

Humankind has redistributed a large number of species outside their native geographic ranges. Although the majority of introduction attempts fail to establish populations, the cumulative negative effect of successful non-native species has been and will continue to be large. Historical records of land bird introductions provide one of the richest sources of data for testing hypotheses regarding the factors that affect the successful establishment of non-native populations. However, despite comprehensive summaries of global avian introductions dating back two decades only very recent studies have examined the successful establishment of non-native bird species worldwide. It is clear that a non-random pattern exists in the types of land bird species that have been chosen by humans to be introduced outside their native range. Out of the 44 avian families from which species have been chosen for introduction almost 70% of introduction attempts have been from just five families (Phasianidae, Passeridae, Fringillidae, Columbidae, Psittacidae). Notably, these families include game species, insectivorous song birds, and species from the pet trade. It has been hypothesised that the fate of introduced species may be determined in part by heritable characteristics that are shared by closely related taxa. In my analyses, I have used current comparative methods to demonstrate that intrinsic eco-physiological characteristics are significant predictors of the worldwide success of introduced land bird species. The results of my analyses contribute to a greater ecological understanding of the traits that correlate with the successful establishment of non-native species. Notably, the three major conclusions that I have drawn from this thesis are: 1. Non-random patterns of successful establishment exist for introduced land bird taxa that have experienced a repeated number of introduction attempts. This result supports the idea that introduced species have an inherent likelihood of either succeeding or failing to establish non-native populations. 2. Eco-physiological traits are important correlates for determining the variability in introduction outcome for non-native land bird species. With reliable information on introduction attempts and taxa-specific traits predictive models are possible that quantify the outcome of repeated introduction attempts across non-native species. 3. Islands are not universally less resistant than mainland regions to the successful establishment of non-native species. This perception is a reflection of the greater number of introduction attempts to islands rather than an effect of biotic resistance. Any differences in the success of introduction attempts can be attributed largely to differences in the proportion of introductions that have been made across biogeographic regions. I have highlighted that data are accessible for global analyses of the variability in the successful establishment of non-native species. Although establishment success is not a deterministic process, the characteristics of an introduced species can influence the probability of its succeeding. I have shown that with adequate eco-physiological information, and for introduced land bird species at least, this probability can be predicted. These results refute previous suggestions that the stochastic component of species introductions will always overshadow any emerging patterns of successful establishment among non-native populations.

Research was conducted to determine individual suitability of native and Canadian-bred selected plants in terms of growth and survivability for local extensive green roofs. The experiment was single-factor (species) with 12 levels (two Sedum spp. [controls]; 10 Canadian-bred or native plant species) in a randomized complete block design with three blocks. Variables measured were percent survival and cover, height, fresh and dry weights, stomatal conductance, transpiration, photosynthetic rate, soil temperature, soil moisture, and reflectance. Artemisia stelleriana contributed more to cooling through transpiration than Sedum floriferum, and maintained similar soil moisture to Sedum acre. Lotus corniculatus was similar to the controls in photosynthetic rate and had higher reflectance than Sedum acre in July. With high biomass and photosynthetic rates, Aster novi-belgii may contribute more to carbon sequestration and insulation than the controls. Artemisia stelleriana , Lotus corniculatus, and Aster novi-belgii are suitable species for extensive green roofs in northern Nova Scotia.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The objective of this study was to evaluate the effect of rotational grazing on the floristic composition and structure of a natural grassland of Pampa biome. The study comprises the periods of spring / summer of three years (2011, 2012 and 2013) in an experimental site at Depressão Central of Rio Grande do Sul state. Treatments were two rest intervals under rotational grazing, 375 degree days (DD) and 750 degree-days (DD), the experimental design was randomized blocks with three replications, with repeated measures over time. The blocking factor was the proportion of the top, slope and lowland relief at each repetition. Records were analyzed as a three-year data base and subjected to ordination analysis and randomization testing using MULTIV software. There was no significant difference for the variables assessed over the three assessment periods. The evaluated rest intervals on rotational grazing didn t affect structure and floristic composition of a natural grassland during the spring / summer over the three years of evaluation. / O objetivo deste trabalho foi avaliar o efeito do pastoreio rotativo sobre a composição florística e estrutural de uma pastagem natural do Bioma Pampa. O trabalho compreende avaliações referentes aos períodos de primavera/verão de três anos (2011, 2012 e 2013) em área experimental na Depressão Central do Estado do Rio Grande do Sul. Os tratamentos foram dois intervalos de descanso sob pastoreio rotativo, 375 graus dia (GD) e 750 graus dias (GD), em delineamento experimental de blocos casualizados, três repetições, com medidas repetidas no tempo. O fator de bloqueamento foi a proporção dos relevos topo, encosta e baixada em cada repetição. Os dados foram analisados como um conjunto de três anos de avaliações e submetidos à análise de ordenação e testes de aleatorização utilizando o software MULTIV. Não houve diferença significativa para as variáveis avaliadas ao longo dos três períodos de avaliação. O pastoreio rotativo com os intervalos de descanso avaliados não alterou a composição florística e estrutural de uma pastagem natural no período de primavera/verão ao longo dos três anos de avaliação.

Boston University. University Professors Program Senior theses. / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / 2031-01-02

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2016-12-19T12:44:53Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) rafaela_naiara_oliveira.pdf: 828917 bytes, checksum: 4fca08e2402e176f89301c9fc6e5d35b (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-12-19T16:54:47Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) rafaela_naiara_oliveira.pdf: 828917 bytes, checksum: 4fca08e2402e176f89301c9fc6e5d35b (MD5) / Made available in DSpace on 2016-12-19T16:54:47Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) rafaela_naiara_oliveira.pdf: 828917 bytes, checksum: 4fca08e2402e176f89301c9fc6e5d35b (MD5) Previous issue date: 2016 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Este trabalho teve como objetivo desenvolver procedimentos de propaga??o in vitro de Eremanthus incanus e controlar a hiperidricidade em explantes durante o cultivo. Foram realizados cinco experimentos, que envolveram as etapas de germina??o, multiplica??o e alongamento. No experimento um, avaliou-se a influ?ncia dos meios de cultura MS e WPM (25, 50, 75 e 100% dos sais e vitaminas) no percentual de germina??o e na altura, n?mero de folhas e peso de mat?ria seca das pl?ntulas produzidas. Nos experimentos dois, tr?s e quatro os tratamentos consistiram de dois tipos de recipientes (tubos de ensaio e frascos de cultura) e quatro formas de veda??o (pel?cula de PVC, papel celofane, fita microporosa e tampas espec?ficas). No experimento dois, avaliou-se a influ?ncia dos recipientes e das formas de veda??es sobre o percentual de germina??o e de contamina??o, altura, n?mero de folhas e peso de mat?ria seca de pl?ntulas. No experimento tr?s, foram avaliados o n?mero de brota??es e a hiperidricidade em explantes na fase de multiplica??o, em tr?s subcultivos. J? no experimento quatro, a fase de alongamento foi avaliada em fun??o dos recipientes e formas de veda??o, em rela??o ?s vari?veis altura, hiperidricidade e peso de mat?ria seca. No experimento cinco, foram testadas quatro concentra??es de BAP e de TDZ e avaliados o n?mero de brota??es, hiperidricidade e calosidade, em dois subcultivos. No experimento um, o meio WPM75 apresentou o maior percentual de germina??o, enquanto o meio MS75 apresentou maior altura e n?mero de folhas, e o WPM100 maior peso de mat?ria seca. No experimento quatro, as combina??es tubo+fita, tubo+PVC e frasco+PVC proporcionaram os maiores percentuais de germina??o, enquanto os menores percentuais de contamina??o foram observados nos tratamentos tubo+fita e tubo+tampa. A combina??o tubo+celofane apresentou maior valor de altura e peso de mat?ria seca, e frasco+PVC maior n?mero de folhas. Observou-se no experimento tr?s, com rela??o ao n?mero de brota??es, que no subcultivo um a combina??o frasco+celofane foi superior, enquanto nos subcultivos dois e tr?s o tratamento tubo+celofane se destacou. Para a hiperidricidade, no subcultivo um, a combina??o tubo+tampa foi a que apresentou menor hiperidricidade, no subcultivo dois os tratamentos tubo+PVC e tubo+tampa se destacaram, e no subcultivo tr?s o melhor tratamento foi tubo+celofane. Na fase de alongamento (Experimento quatro), a combina??o tubo+celofane foi a que apresentou maior altura m?dia de explantes. Nos tr?s subcultivos, n?o ocorreu hiperidricidade na combina??o frasco+celofane, sendo tamb?m nessa combina??o observado o maior peso de mat?ria seca. No experimento cinco, o tratamento 0,75 mg L-1 BAP apresentou o maior n?mero de brota??es, nos dois subcultivos. Para a hiperidricidade, em ambos subcultivos, o BAP apresentou plantas com menor n?vel de hiperidricidade. Conclui-se que, na germina??o de sementes de Eremanthus incanus, o meio WPM com 75% de sais e vitaminas ? o mais indicado, enquanto para o estabelecimento da cultura o melhor ? o MS 75%. O tipo de recipiente e veda??o influenciam na multiplica??o, no alongamento e na hiperidricidade dos explantes, sendo que a combina??o do recipiente tubo de ensaio com a veda??o papel celofane transparente proporcionou, em geral, os melhores resultados. Quando comparadas as citocininas BAP e TDZ na multiplica??o, indica-se 0,75 mg L-1 de BAP. Mais estudos envolvendo a propaga??o in vitro devem ser realizados, principalmente relacionados ?s etapas de enraizamento e aclimata??o, de forma a consolidar uma metodologia para E. incanus. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / This study aimed to develop procedures for in vitro propagation of Eremanthus incanus and control the vitrification in explants during cultivation. Five experiments were carried out, involving the stages of germination, multiplication and stretching. In experiment 1, we evaluated the influence of culture medium MS and WPM (25, 50, 75 and 100% of salts and vitamins) in the percentage of germination and height, number of leaves and dry weight of the produced seedlings. The experiments 2, 3 and 4 treatments consisted of two types of containers (test tubes and culture vials) and four types of sealing (PVC film, cellophane, micropore tape and specific covers). In experiment 2, we evaluated the influence of the containers and sealing forms on the percentage of germination and contamination, height, number of leaves and dry weight of seedlings. In experiment 3, we evaluated the number of shoots and vitrification in explants in multiplication phase in three subcultures. In the experiment 4, the elongation phase was assessed according to the containers and sealing forms in relation to height variables, vitrification and dry matter weight. In experiment 5, four concentrations of BAP and TDZ were tested and the number of shoots, vitrification and callus were evaluated in two subcultures. In experiment 1, the culture medium WPM75 had the highest percentage of germination, while the MS75 medium showed higher height and number of leaves, and the WPM100 presented the greater weight of dry matter. In experiment 2, the combinations tube + tape, PVC pipe + tube and PVC + vial provided the highest percentage of germination, while the lowest percentage of contamination were observed in the treatments tube + tape and tube + cover. The tube combination tube + cellophane showed higher height and dry matter weight, and vial + PVC larger number of leaves. It was observed in the experiment 3, in relation with the number of sprouts, that in the subculture 1 the combination vial + cellophane was superior, while in subcultures 2 and 3 the treatment tube + cellophane stood out. For vitrification, in subculture 1 the combination tube + cover showed the lowest vitrification, in subculture 2 the treatments tube + PVC tube and cover + tube stood out, and in subculture 3 the best treatment was tube + cellophane. In the elongation phase (Experiment 4), the combination tube + cellophane showed the highest average height of explants. In the three subcultures, there was no vitrification in combination vial + cellophane, also being observed in this combination the greater weight of dry matter. In experiment 5, treatment 0.75 mg L-1 BAP had the highest number of shoots in the two subcultures. For vitrification, in both subcultures, BAP presented plants with lower vitrification. In conclusion, for the germination of Eremanthus incanus seeds, WPM medium with 75% of salts and vitamins is the most suitable, while for crop establishment the best medium is MS 75%. The type of container and sealing influence the multiplication, on elongation and vitrification of explants, being that the combination of the test tube container with transparent cellophane sealing provided, in general, the best results. When comparing the cytokinins BAP and TDZ in proliferation it is indicated 0.75 mg L-1 BAP. Further studies involving the in vitro propagation must be carried out, mainly related to steps of rooting and acclimatization to consolidate a methodology for E. incanus.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-06-07T22:50:41Z No. of bitstreams: 2 kennedy_paiva_porfirio.pdf: 1795601 bytes, checksum: b5586d73e2887546c047ef31257c28b7 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-06-22T15:23:55Z (GMT) No. of bitstreams: 2 kennedy_paiva_porfirio.pdf: 1795601 bytes, checksum: b5586d73e2887546c047ef31257c28b7 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-06-22T15:23:55Z (GMT). No. of bitstreams: 2 kennedy_paiva_porfirio.pdf: 1795601 bytes, checksum: b5586d73e2887546c047ef31257c28b7 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Este trabalho teve como objetivo desenvolver procedimentos de germina??o, estaquia e micropropaga??o de Xylopia aromatica. Os experimentos foram conduzidos na Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), em diamantina ? MG, cujos trabalhos foram divididos em dois cap?tulos. No primeiro cap?tulo foram realizados oito experimentos. A germina??o foi avaliada em quatro experimentos, onde sementes de Xylopia aromatica, separadas em lotes distintos quanto ? densidade, foram submetidas ? quebra de dorm?ncia utilizando GA3 em diferentes concentra??es (0; 25; 50; 100; 250; 500; e 1000 mg L-1), nos tempos de imers?o 24 e 48 horas. N?o ocorreu germina??o durante os 210 dias de avalia??o. Foram realizados quatro experimentos de estaquia, onde segmentos caulinares (com e sem folhas) e radiculares com classes de di?metros distintas, foram imersos por 30 segundos em solu??o de AIB (0; 2000; 4000; 6000; 8000 e 10.000 mg L-1) a fim de induzir o enraizamento advent?cio. Foi avaliado o percentual de enraizamento durante 140 dias. N?o houve enraizamento em nenhum dos experimentos, porem ocorreu brota??es nas estacas caulinares que foram imersas nas concentra??es de 2000, 4000 e 6000 mg L-1 de AIB. No segundo cap?tulo, foram realizados seis experimentos, que envolveram etapas de multiplica??o, alongamento e enraizamento in vitro. Explantes foram submetidos a diferentes meios de cultura (MS e WPM), e concentra??es de BAP (0,5 e 0,8 mg L-1), objetivando determinar o melhor meio de cultura e concentra??o de BAP para a multiplica??o da esp?cie. Avaliou-se tamb?m, o alongamento em explantes com o uso de combina??es de ANA e BAP e GA3, e enraizamento com o uso de AIB e ANA. O meio MS acrescido de 0,8 mg L-1 de BAP foi o que apresentou melhores resultados para a multiplica??o de Xylopia aromatica. Na fase de alongamento, o GA3 na concentra??o de 5,0 mg L-1 foi o regulador de crescimento que apresentou melhor resultado em altura e n?mero de folhas. No enraizamento, o AIB e o ANA n?o foram eficazes na indu??o de ra?zes, necessitando mais estudos relacionados ? etapa de enraizamento para a esp?cie. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / This study aimed to develop germination procedures, cutting and micropropagation Xylopia aromatica. The experiments were conducted in Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) in Diamantina - MG, whose works were divided into two chapters. In the first chapter were carried out eight experiments. Germination was evaluated in four experiments where aromatica Xylopia seeds, separated into separate lots for density, were submitted to dormancy breaking using GA3 at different concentrations (0, 25, 50, 100, 250, 500, and 1000 mg L-1) under immersion for 24 and 48 hours. Not germinated during the 210 days of evaluation. Four cutting experiments were carried out where segments shoot (with and without leaves) and root with different diameter classes were immersed for 30 seconds in AIB solution (0; 2000; 4000; 6000; 8000 and 10,000 mg L-1) to induce adventitious roots. Rooting percentage was evaluated during 140 days. There was no rooting experiments, however sprouting occurred in the cuttings were dipped in concentrations of 2000, 4000 and 6000 mg L-1 AIB. In the second chapter, we were conducted six experiments, involving multiplication steps, stretching and in vitro rooting. Explants were subjected to different culture medium (MS and WPM) and BAP (0,5and 0,8mg L-1), in order to determine the best medium and concentration of BAP for the multiplication of the species. It also evaluated the elongation explants using combinations of ANA and BAP and GA3 and rooting using AIB and ANA. The MS medium plus 0.8 mg L-1 BAP showed the best results for the multiplication of Xylopia aromatica. In the stretching step, the concentration of GA3 at 5,0 mg L-1 was the growth regulator showed better results in height and leaf number. Rooting, AIB and ANA were not effective in inducing roots, requiring more studies related to the rooting stage for the species.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-10-04T13:13:21Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) aline_danielle_souza_prates.pdf: 764936 bytes, checksum: 07ecde7b89a9710be55845e608186865 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-10-09T14:25:55Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) aline_danielle_souza_prates.pdf: 764936 bytes, checksum: 07ecde7b89a9710be55845e608186865 (MD5) / Made available in DSpace on 2017-10-09T14:25:55Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) aline_danielle_souza_prates.pdf: 764936 bytes, checksum: 07ecde7b89a9710be55845e608186865 (MD5) Previous issue date: 2016 / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Banco do Nordeste do Brasil (BNB) / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / A ingest?o de alimentos enriquecidos com ?cidos graxos poliinsaturados (PUFAs) da s?rie ?mega-3 vem sendo difundida nas ?ltimas d?cadas. A eleva??o dos n?veis dos ?cidos eicosapentan?ico (EPA) e docosaexan?ico (DHA) pode ser obtida por meio do enriquecimento da alimenta??o dos animais criados em cativeiro, manipulando-se a composi??o dos ?cidos graxos da dieta. O objetivo deste trabalho foi avaliar dietas contendo a inclus?o da microalga Schizochytrium sp. no desempenho produtivo e composi??o bromatol?gica de juvenis de piau. O experimento foi conduzido no Laborat?rio de Aquicultura e Ecologia Aqu?tica do Departamento de Zootecnia da Universidade Federal dos Vales do Jequitinhonha e Mucuri, em Diamantina ? MG. Foram utilizados 300 juvenis de piau com peso m?dio e comprimento total m?dio de 11,80 ? 1,08 g e 9,68 ? 0,31 cm, respectivamente . Os peixes passaram por sete dias de adapta??o ao ambiente e neste per?odo foram alimentados com a ra??o do tratamento controle. Utilizou-se um delineamento inteiramente casualizado, com cinco tratamentos (0, 10, 20, 30 e 40 g de Schizochytrium sp. kg-1) e quatro repeti??es, com sete juvenis estocados por aqu?rio, totalizando em 20 parcelas experimentais. Avaliou-se aos 60 dias de experimento os par?metros de desempenho produtivo: ganho de peso (g), biomassa final (g), consumo de ra??o (g), convers?o alimentar, taxa de crescimento espec?fico (TCE) (% dia-1), sobreviv?ncia (%) fator de condi??o (K), e par?metros bromatol?gicos da carca?a: mat?ria seca (MS), mat?ria mineral (MM), extrato et?reo (EE), prote?na bruta (PB), c?lcio (Ca) e f?sforo (P). Foi observado efeito linear crescente (p<0,05) para os par?metros de ganho de peso, biomassa final e sobreviv?ncia. Para convers?o alimentar observou-se efeito quadr?tico (p<0,05) com o melhor n?vel de 33,5 g kg-1 de inclus?o da microalga. Quanto ?s an?lises bromatol?gicas da carca?a , n?o foram observados (p>0,05) diferen?as para mat?ria seca, mat?ria mineral, extrato et?reo, exceto para a prote?na bruta, c?lcio e f?sforo que apresentaram efeito linear decrescente (p<0,05). Conclui-se que a inclus?o acima de 30 g de Schizochytrium sp. kg-1 na ra??o melhora o desempenho de piau. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / The food intake enriched with polyunsaturated fatty acids, omega-3 series, has been widespread in the recent decades. The increase of the EPA and DHA levels can be obtained by enriching the animals feed raised in captivity, by manipulating the fatty acids composition of dietary. This study aimed to evaluate diets with the inclusion of algae Schizochytrium sp. in the productive performance and chemical composition of piau juveniles. The experiment was conducted in the Aquaculture Laboratory of Aquatic Ecology Department of Animal Science of UFVJM in Diamantina - MG. Three hundred piau juvenile with mean weight and total length of 11.80 ? 1.08g and 9.68 ? 0.31 cm respectively, were subjected. Fishes passed for seven days of adaptation and were fed with the control feed treatment. A completely randomized design was used with five treatments (0, 10, 20, 30, and 40 g of Schizochytrium sp. Kg-1), and four replications, with seven juveniles were stocked through aquariums, totaling 20 experimental units. It was evaluated at 60th day of experiment the performance parameters such as weight gain (g), final biomass (g), feed intake (g), feed conversion, TCE (% day-1), survival (%) and condition factor (K), and bromatological parameters of the carcass: Dry matter (DM), mineral matter (MM), ethereal extract (EE), crude protein (CP), calcium (Ca) and phosphorus (P). Increasing linear effect (p <0.05) was observed for the parameters of weight gain, final biomass and survival. For food conversion, a quadratic effect was observed (p <0.05) with the best level of 33.5 g kg-1 inclusion of the microalgae. Regarding the bromatological analyzes of the carcass, differences were not observed (p> 0.05) for dry matter, mineral material, ethereal extract, except for crude protein, calcium and phosphorus, which presented a linear decreasing effect (p <0.05). It is concluded that the above inclusion of 30 g of Schizochytrium sp. Kg-1 in the diet improves the performance of piau.

This study focuses on the antipredator strategies of amphibian larvae in relation to some of their predators. Namely, the relationship between the larvae of the marsh frog (Pelophylax ridibundus) and the invasive species of the fish, the topmouth gudgeon (Pseudorasbora parva). Latter part of the experiment involves investigation into the relationship between another non-native species, the three-spined stickleback (Gasterosteus aculeatus). Both are non-native species of small fishes. The topmouth gudgeon was introduced unintentionally in the 1980s from Hungary. It is listed on the Black List of the Czech Republic and it is on the list of invasive non-native species of the EU Regulation (1143/2014), (Kuřátko, 1998; Poláková et al., 2016). The three-spined stickleback was brought into our territory from America. It was probably released into local ponds by Czech aquarists at the beginning of the 20th century. It is a species that is not listed on the Black List of the Czech Republic, but its negative impact on fish fry has been previously documented (Poláková et al., 2016). Both species have been known for a negative impact on the biological diversity of our fauna, but the influence of these predators on our amphibians has not so far been documented. The experimental part investigates the damage of tadpoles caused by these non-native fishes and the defensive strategy of the tadpoles. The tadpoles were provided with a hiding place as one of the possible escape strategies against the predator.