Biodiversity is being lost around the world and anthropogenic activities, like non-native species introductions and urbanization, are among the leading causes of decline. Broadening our understanding of human-driven impacts on biodiversity can lead to more effective solutions and contribute towards stemming biodiversity losses. In this thesis, I explored the impacts of non-native species introductions and urbanization on butterfly-plant communities. I evaluated potential factors influencing the range expansion of a newly introduced species (Chapter 1), examined the role of urbanization in structuring biological communities (Chapter 2), and identified important ecological interactions between native and non-native species (Chapter 3). In my first chapter, I found that the newly introduced European Common Blue butterfly (Polyommatus icarus) was more abundant in urban and disturbed habitat that was unmown and where their preferred larval host plant (Lotus corniculatus), a non-native species, was present. I also found that P. icarus was not a strong flier relative to other butterfly species, suggesting that adult dispersal may not be a driving factor in range expansion. Instead, this species could expand its range in the future by colonizing habitats in developed regions across Canada given the association I found between P. icarus and disturbed habitat. In my second chapter, I found that urbanization led to the biotic homogenization of butterfly communities around Montréal, QC, favouring a few, highly abundant, non-native species. Homogenization was detected at both the taxonomic and functional levels and was driven by increases in P. icarus abundance in the more urban sites. In my third chapter, I found that non-native plants were well integrated into native butterfly nectar diets in an at-risk oak savanna ecosystem on Vancouver Island, BC and that usage of non-native plants increased when they were more available during the season. I also found that native butterflies visited non-native plants more often than flower availability predicted on its own, suggesting that butterflies may even prefer non-native nectar. Findings from my thesis research broaden our understanding of the ways in which butterfly communities can be influenced by human activities like urbanization and the introduction of non-native species, informing conservation efforts and directing future research needs.

Made available in DSpace on 2016-08-15T20:30:57Z (GMT). No. of bitstreams: 1 DanielSP_DISSERT.pdf: 1561196 bytes, checksum: b284038c0016d3ae3285d101b795f237 (MD5) Previous issue date: 2008-07-25 / Néctar; entomofauna; Merremia aegyptia / O objetivo deste trabalho foi o de investigar se os diferentes horários de coleta de néctar em áreas apícolas influenciam no volume, concentração de açúcar e açúcar total produzido por suas flores, no momento da antese, bem como verificar possíveis alterações nas características do néctar ao longo do tempo e discutir as conseqüências no potencial apícola das áreas de jitirana-branca (Merremia aegyptia). E ainda, a relação entre esta produção de atrativos florais e o comportamento dos polinizadores potenciais, dentre estes a Apis mellifera L. (abelha africanizada), e os requerimentos de polinização da jitirana branca. A pesquisa foi realizada em uma área de preservação de Caatinga, no Campus da FATEC Sertão Central, Quixeramobim-Ceará. Foi constatado que: A jitirana branca é uma cornucópia; sua densidade floral por m² foi em média 33,7 flores; apresentou ampla gama de visitantes florais (hymenopteros, coleópteros, hemípteros, dípteros, e pássaros); seu volume de néctar variou de acordo com o horário de coleta e não há reposição de néctar na flor após as 11:00 horas (A.M.); e a polinização mais eficiente corresponde a autopolinização.

A Mata Atlântica é considerada uma das grandes prioridades para a conservação de biodiversidade em todo o continente americano. Este bioma é um dos oito hotspots do planeta e caracteriza-se pelo alto grau de endemismo e pela alta diversidade de espécies que encerra. As abelhas Euglossini estão restritas à região Neotropical, com uma faixa de distribuição que se estende desde o Norte do México até a província de Córdoba, na Argentina. As espécies dessa tribo são abundantes em florestas tropicais úmidas/chuvosas e florestas subtropicais da América Central e América do Sul onde ocorrem em maior diversidade. Em virtude do alto impacto causado pelas ações humanas em áreas de Mata Atlântica e o pouco que se conhece sobre sua diversidade, este trabalho propõe um estudo geral sobre a estrutura das comunidades de espécies de Euglossini presentes em uma área de planície litorânea continental, Parque Estadual da Serra do Mar - Núcleo Picinguaba (PESM), e uma área insular, Parque Estadual da Ilha Anchieta (PEIA), no município de Ubatuba, norte de São Paulo, Brasil. O PESM abrange uma área de aproximadamente 47.500 hectares e quase todos os ecossitemas da Mata Atlântica são encontrados em seus domínios. O PEIA cobre toda a extensão da Ilha Anchieta (828 hectares), distante cerca de 600 m do continente. As coletas foram realizadas mensalmente, de Agosto/2007 a Julho/2009, com o uso de 14 compostos aromáticos utilizados como iscas artificiais para a atração de machos, além de indivíduos coletados em flores. Mil quinhentos e setenta e seis espécimes (73 fêmeas e 1503 machos), pertencentes a 24 espécies, foram registrados no presente trabalho. A espécie mais abundante foi Euglossa cordata (36,4%), seguida por Euglossa iopoecila (13,9%) e Euglossa sapphirina (13,3%). Dezoito espécies foram amostradas na Ilha Anchieta, sendo que quatro delas foram exclusivas desta área, ao passo que 20 espécies foram amostradas no PESM e seis delas foram registradas apenas neste local. Na Ilha Anchieta, Eg. cordata representou 63,2%, quase dois terços do total de espécies coletadas. Já em Picinguaba, Eg. iopoecila (23,0%) e Eg. sapphirina (21,0%) foram as duas espécies dominantes. A espécie Eg. iopoecila, a mais abundante na área continental, não foi registrada na llha e Eg. sapphirina, a segunda espécie mais frequente no PESM, foi representada apenas por nove indivíduos na Ilha Anchieta e por 200 em Picinguaba. Estes dados sugerem que essas duas espécies podem atuar como bioindicadores de ambientes preservados, como sugerido para outras espécies de Euglossini. Por outro lado, alguns autores evidenciaram que Eg. cordata é uma espécie favorecida por ambientes perturbados, o que pode estar associado à sua alta abundância na Ilha Anchieta. Dados de literatura mostram que há um sinal evidente de perturbação ambiental, além da perda de espécies, é a dominância de algumas espécies. A Ilha Anchieta apresenta um longo histórico de ocupação humana e diversas espécies de plantas e animais foram introduzidos em seus domínios. / The Atlantic Forest is considered as one of the highest priorities for the conservation of biodiversity in the American continent. This biome is one of the eight biodiversity hotspots in the world and is characterized by high species diversity and endemism. Euglossini bees are restricted to the Neotropics, with a geographic range that extends from northern Mexico to the Córdoba Province in Argentine. Species from this tribe are abundant in humid and rainy tropical forests and in sub-tropical forests of Central and South America, where their diversity is high. Due to the high impact caused by human activities in the Atlantic Forest and the poor knowledge on its biodiversity, in the present study we assessed the community structure of the Euglossini in a coastal lowland area: Parque Estadual da Serra do Mar - Núcleo Picinguaba (PESM); and in an insular area: Parque Estadual da Ilha Anchieta (PEIA), Ubatuba, both located in northern São Paulo State, Brazil. PESM has an area of approximately 47.500 ha and almost all ecosystems of the Atlantic Forest are found within its domains. PEIA covers all the extension of the Anchieta Island (828 ha), about 600 m away from the continent. Sampling was carried out monthly, from August 2007 to July 2009, using artificial baits with 14 aromatic compounds to attract males, as well as by collecting individuals on flowers. One thousand five hundred and seventy-six specimens (73 females and 1,503 males), represented by 24 species were recorded. The most abundant species was Euglossa cordata (36.4%), followed by Euglossa iopoecila (13.9%) and Euglossa sapphirina (13.3%). Eighteen species were sampled on Anchieta Island and four of them were exclusive to this area; whereas 20 species were sampled in PESM and six of them were only recorded there. On Anchieta Island, E. cordata represented almost two thirds of the total species collected (63.2%). In Picinguaba, E. iopoecila (23.0%) and E. sapphirina (21.0%) were the dominant species. E. iopoecila, the most abundant species in the continental area, was not recorded on the island, and E. sapphirina, the second most frequent species in PESM, was represented only by nine individuals on Anchieta Island and by 200 in Picinguaba. Results suggest that these two species may act as bioindicators of preserved environments, as suggested for other Euglossini species. However, some authors evidenced that E. cordata is favored by disturbed environments, which may be associated with its high abundance on Anchieta Island. Other studies show that an evident sign of environmental perturbation, besides species loss, is the dominance of some species. Anchieta Island exhibits a long history of human occupation and several plant and animal species were introduced there.

Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-05-28T14:40:40Z No. of bitstreams: 1 CAETANO JOSÉ DE LIMA - DISSERTAÇÃO PPGSA PROFISSIONAL 2014..pdf: 1709679 bytes, checksum: eb558d2b1e1c08df89639102577925f9 (MD5) / Made available in DSpace on 2018-05-28T14:40:40Z (GMT). No. of bitstreams: 1 CAETANO JOSÉ DE LIMA - DISSERTAÇÃO PPGSA PROFISSIONAL 2014..pdf: 1709679 bytes, checksum: eb558d2b1e1c08df89639102577925f9 (MD5) Previous issue date: 2014-02-27 / A bucha vegetal é uma planta da família cucurbitácea do gênero Luffa Cylíndrica também conhecida como esfregão ,esponja , maxixe do mato é originária da Ásia trazida pelo escravo para o Brasil .A bucha vegetal é muito utilizada na higiene pessoal, artesanato, industria etc. É uma cultura de fácil exploração e adaptou se muito bem no semiarido. No entanto pouco se sabe a respeito biologia flora dessa cultura.Esse trabalho teve por objetivo estudar aspecto da biologia floral de Luffa cylíndrica cidade de Sousa PB e contribuir com informações sobre pastagem apícola na caatinga. O trabalhos foram no Instituto de Educação Ciência e Tecnologia da Paraíba IFPB campus Sousa-PB localizado no perímetro Irrigado de São Gonçalo no período de dezembro a junho de 2013. Foram investigados os seguintes pontos: investigar e os diferentes horários de coleta de néctar e sua influenciam no volume e concentração de açúcar por suas flores no momento da antese ate a , bem como verificar possíveis alterações nas características do néctar ao longo do tempo e discutir as conseqüências no potencial apícola das áreas do plantio de bucha vegetal. A produção no volume de néctar por flor da cucurbitácea luffa cylindrica foi em média de 2,12 μl e o tendo média de brix de 20,1 %. A visitação floral da apís mellifera teve media geral de 1,89 minutos. A bucha vegetal é uma cucurbitácea Luffa cilíndrica e uma é uma planta monóica, o que significa que suas flores são tanto masculinas como femininas, não havendo tipos diferentes; sua densidade floral por m² foi em média 3,52 flores m2. Foi constatado que a antese floral da bucha ocorreu entre 4:30 e 5:30 horas e do fechamento teve inicio de 14:00 horas e completando a 16:00 horas. / The loofah is a cucurbit family plan of Luffa cylindrica genre also known as mop, sponge, gherkin the bush is native to Asia brought by slaves to Brazil .The loofah is widely used in toiletries, crafts, industry etc. . It is a culture of easy operation and adapted very well in the semiarid. However little is known about biology flora cultura.Esse this work aimed to study aspect of the floral biology of Luffa cylindrica city of Sousa PB and contribute information on beekeeping in the grassland savanna. The meeting was at the Institute of Education Science and Technology of Paraíba IFPB campus Sousa-PB located in the Irrigated Perimeter of São Gonçalo in the period from December to June 2013. The following points were investigated: research and the different nectar collection schedules and their influence the volume and concentration of sugar for its flowers at the time of anthesis up to and verify changes in Nectar characteristics over time and discuss the potential consequences in beekeeping areas of planting vegetable fodder. Production in flower for nectar volume of cucurbit luffa cylindrica averaged 2.12 � and having average brix of 20.1%. The floral visitation of Apis mellifera had overall average of 1.89 minutes. The plant is a cylindrical bushing and a cucurbit Luffa is a monoecious plant, which means that the flowers are both male and female, having no different types; its floral density per square meter averaged 3.52 m2 flowers. It was found that the floral anthesis bushing occurred between 4:30 and 5:30 and began closing in from 14:00 hours and supplementing 16:00.

This project examined multiple aspects of the reproductive biology of the wetland invasive species, purple loosestrife (<i>Lythrum salicaria</i> L.), in central Saskatchewan. An examination of insect taxa visiting the three floral morphs of <i>Tristylous</i> L. <i>salicaria</i>, as well as a ranking of the pollination efficiency of individual insect species, an apparent first for L salicaria, was undertaken. Surface features of the floral nectary of L. <i>salicaria</i>, as well as floral nectar secretion dynamics, were also investigated. This project also re-visited some of the previous work done on this invasive species, including various floral organ morphometrics in relation to heterostyly, and aspects of the tristylous breeding system including self-fertilization, and fertilization potential of both illegitimate pollination and legitimate pollination.<p>The trimorphic nature of the sexual floral organs of L. <i>salicaria</i> were well defined in Saskatchewan. Significant differences in length (long-, intermediate- and short-style lengths) exist between all three floral morphs. Lengths of the staminal filaments (long, intermediate, and short) were also significantly different. Also the floral nectary in L. <i>salicaria</i> is located in a depression formed at the interface of the hypanthium and the gynoecium. Several stomata are located at regular intervals along the nectary surface, and may constitute the escape route for floral nectar. No morphological differences in nectary structure were apparent among the three floral morphs.<p>Nectar secretion dynamics of L. <i>salicaria</i> were examined between the three floral morphs throughout two summer days in 2006. Peak average nectar volumes and nectar sugar quantities were detected at 3:00 pm, and, interestingly, no significant differences were detected between floral morphs, in accordance with nectary morphology. The estimated secretion rates for L. <i>salicaria</i> ranged from 61 83 µg of nectar sugar per flower per hour.<p>Hand-pollination experiments carried out over the summers of 2006 and 2007 at three field sites in and around Saskatoon have verified the strong self-incompatibility in the breeding system of this tristylous species. Intramorph pollination, using illegitimate pollen, did not result in fertilisation, whereas legitimate hand-pollination experiments yielded multiple pollen tubes at the style base, without exception.<p><i>Lythrum salicaria</i> in central Saskatchewan was visited by several bee taxa including honeybees (<i>Apis mellifera</i> L.), bumblebees (Bombus spp.), leafcutter bees (Megachile spp.), and sweat bees (Lasioglossum spp.). A single visit by <i>Anthophora furcata</i> (Panzer) was also recorded in 2007. Generally, bee visits led to high levels of pollination success as determined by fluorescence microscopy of pollen tubes following single insect visits to previously-unvisited flowers. However, most visits by hoverflies (Syrphidae) were non-pollinating. Visits by Pieris rapae (L.), yellowjacket wasps (Vespidae) and some non-syrphid flies (Diptera) also yielded no pollen tubes at the style base.<p>A study of the ultrastructure and development of the floral nectary of the purple loosestrife cultivar Morden Gleam (<i>Lythrum virgatum</i> L. x L. alatum Pursh.) showed that starch build up in pre-secretory nectary tissues declined throughout secretion, and is virtually absent in post-secretory nectary tissues. The lack of a direct vascular supply to the floral nectary suggests that the starch breakdown products likely make up most of the floral nectar carbohydrates. Surface features of the floral nectary in Morden Gleam closely resembled those of L. salicaria, located in the valley formed between the hypanthium and gynoecium. Nectary stomata, occasionally in pairs, likely serve as outlets for nectar in this cultivar.

This project examined multiple aspects of the reproductive biology of the wetland invasive species, purple loosestrife (<i>Lythrum salicaria</i> L.), in central Saskatchewan. An examination of insect taxa visiting the three floral morphs of <i>Tristylous</i> L. <i>salicaria</i>, as well as a ranking of the pollination efficiency of individual insect species, an apparent first for L salicaria, was undertaken. Surface features of the floral nectary of L. <i>salicaria</i>, as well as floral nectar secretion dynamics, were also investigated. This project also re-visited some of the previous work done on this invasive species, including various floral organ morphometrics in relation to heterostyly, and aspects of the tristylous breeding system including self-fertilization, and fertilization potential of both illegitimate pollination and legitimate pollination.<p>The trimorphic nature of the sexual floral organs of L. <i>salicaria</i> were well defined in Saskatchewan. Significant differences in length (long-, intermediate- and short-style lengths) exist between all three floral morphs. Lengths of the staminal filaments (long, intermediate, and short) were also significantly different. Also the floral nectary in L. <i>salicaria</i> is located in a depression formed at the interface of the hypanthium and the gynoecium. Several stomata are located at regular intervals along the nectary surface, and may constitute the escape route for floral nectar. No morphological differences in nectary structure were apparent among the three floral morphs.<p>Nectar secretion dynamics of L. <i>salicaria</i> were examined between the three floral morphs throughout two summer days in 2006. Peak average nectar volumes and nectar sugar quantities were detected at 3:00 pm, and, interestingly, no significant differences were detected between floral morphs, in accordance with nectary morphology. The estimated secretion rates for L. <i>salicaria</i> ranged from 61 83 µg of nectar sugar per flower per hour.<p>Hand-pollination experiments carried out over the summers of 2006 and 2007 at three field sites in and around Saskatoon have verified the strong self-incompatibility in the breeding system of this tristylous species. Intramorph pollination, using illegitimate pollen, did not result in fertilisation, whereas legitimate hand-pollination experiments yielded multiple pollen tubes at the style base, without exception.<p><i>Lythrum salicaria</i> in central Saskatchewan was visited by several bee taxa including honeybees (<i>Apis mellifera</i> L.), bumblebees (Bombus spp.), leafcutter bees (Megachile spp.), and sweat bees (Lasioglossum spp.). A single visit by <i>Anthophora furcata</i> (Panzer) was also recorded in 2007. Generally, bee visits led to high levels of pollination success as determined by fluorescence microscopy of pollen tubes following single insect visits to previously-unvisited flowers. However, most visits by hoverflies (Syrphidae) were non-pollinating. Visits by Pieris rapae (L.), yellowjacket wasps (Vespidae) and some non-syrphid flies (Diptera) also yielded no pollen tubes at the style base.<p>A study of the ultrastructure and development of the floral nectary of the purple loosestrife cultivar Morden Gleam (<i>Lythrum virgatum</i> L. x L. alatum Pursh.) showed that starch build up in pre-secretory nectary tissues declined throughout secretion, and is virtually absent in post-secretory nectary tissues. The lack of a direct vascular supply to the floral nectary suggests that the starch breakdown products likely make up most of the floral nectar carbohydrates. Surface features of the floral nectary in Morden Gleam closely resembled those of L. salicaria, located in the valley formed between the hypanthium and gynoecium. Nectary stomata, occasionally in pairs, likely serve as outlets for nectar in this cultivar.

Honey bees, Apis mellifera, play an important role in many ecosystems, pollinating a wide variety of native, agricultural, and exotic plants. The recent decline in the number of feral and managed honey bee colonies in North America, as well as the arrival of Africanized honey bees, have caused concern about adequate pollination for agricultural crops and natural plant communities. However, little is known about feral colonies, and the feral population is the source for Africanized honey bees as they spread and infiltrate managed populations. The goal of my dissertation was to examine the ecology of feral honey bee colonies, adding the spatial context necessary to understand the population ecology and patterns of resource use by feral honey bees on the Welder Wildlife Refuge. I defined the functional heterogeneity of feral honey bee habitat by identifying the suitability of different habitats for feral colonies based on the distribution and abundance of important resources (cavities, nectar, and pollen). I evaluated the distribution and abundance of feral colonies by examining nest site characteristics, population trends, and spatial and temporal patterns in cavity use. Lastly, I examined resource use by evaluating patterns in pollen collection and identifying where and when honey bees searched for resources. Overall, the Welder Wildlife Refuge provided excellent habitat for feral honey bees, supporting a high density of feral colonies. The dense live oak habitat was the best overall source for cavities, nectar, and pollen. Nectar and pollen were abundant throughout the year, with the exception of December and January, when a large number of honey bees searched for resources. Cavities did not appear to vary in their suitability for feral colonies based on measured structural and environmental attributes, since no cavity attributes were correlated with indices of cavity quality. However, the cavity quality indices varied between cavities, suggesting some cavities were more suitable for feral honey bees than others. Colonies were aggregated within the study area, probably due to the distribution of resources. The invasion of Africanized honey bees appeared to fragment the existing European population, with Africanized colonies aggregated in distribution and European colonies random in distribution.

Bumble bees (Bombus spp.: Apidae) are valuable pollinators of many crop and wildflower species. However, in some situations their potential is limited. Evaluation of, and management to improve bumble bee efficacy should include spatial information which is currently limited. Distance and direction determine the success of gene flow via pollen cross-over within and between plant populations at several scales. Studies of movement by bumble bees at large scales in semi-natural and intensively managed habitats are scarce. Few studies of bumble bee dispersal from the nest exist, particularly in relation to crops. At a small scale, directional rather than random movement between flowers has benefits for pollen flow. Results to date of directionality studies at small scales and their interpretation are inconsistent. The purpose of this thesis was to assess distances and directions moved by foraging bumble bees at a range of scales in two contrasting farm habitats in order to predict their pollination potential. A novel method was developed to mark automatically all the occupants of nests of bumble bees B. terrestris (L.) placed around a Lucerne seed crop Medicago sativa L. in New Zealand. Reobservation data from eight nests showed that of bumble bees which foraged within the crop, 81 % travelled ≤ 50 m and 56% ≤ 20 m from their nest. Results should be interpreted with extreme caution because fewer than 1 % of bumble bees marked at nests were reobserved in the crop. Because it was not established where the other 99% of the bumble bees went, foraging areas for nests could not be calculated as anticipated. Theories to explain the non-specificity of bumble bees to the crop include; resource depletion near nests, competition with honey bees in the crop, or an evolved strategy to disperse in order to minimise nest predation. Lucerne flowers contained a significantly lower concentration of sugar in nectar, and significantly fewer pollen grains than did those of purple loosestrife Lythrum salicaria L., a species on which bumble bees appeared to forage in preference Lucerne. The higher rewards offered by L. salicaria may have diverted bumble bees from the less-rewarding Lucerne crop. In a Norwegian meadow system, all foraging bouts by bumble bees B. lucorum (L.) within a patch of wood cranesbill flowers Geranium sylvaticum L. were random with respect to direction. This result is not consistent with predictions, based on optimal foraging theory, that movement should be directional to enable optimal pollen flow, and to avoid revisitation of just-emptied flowers by the pollinator. A medium-scale study of several bumble bee species moving between patches of northern wolfsbane Aconitum septentrionale Koelle in Norway revealed considerable loyalty by bumble bees to patches in which they were marked. In a different landscape-scale study (over 5 ha), several bumble bees exhibited a high degree of loyalty to areas in which they were marked (87% were reobserved ≤ 50 m from marking points). These restricted movement patterns are discussed in terms of potential pollen flow. Of 260 bumble bees marked, only five were recorded crossing between meadows, which could be a result of innate loyalty to small forage areas, an artefact of the sampling technique used, or forest boundaries acting as physical impediments to movement. In the future, spatial data of the type collected in this thesis will aid in the management of bumble bee populations to achieve both commercial and conservation goals. Spatial data can be applied to predict the optimal placement of artificially-reared nests, predict suitable isolation distances for pure seed crops, and aid in the positioning of supplementary forage sources and nest-site refuges.

This diploma thesis ,,buckwheat attractivity for bees" deals mainly with native nectar plants for the processing of bees to honey. Work is folded in two parts. The theoretical part deals with the migration of colonies, both for nectar crops and plants with bee pollination needs. In ractical part of this thesis microscopic pollen analysis were performed and contents of pollen grains in honey from colonies, which were relocated to buckwheat growth was evaluated. Comparison of this honey with honey from the hives with similaar location, but without access to buckwheat growth was done.

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / O caju destaca-se dentre as espÃcies frutÃferas nativas do Nordeste, por possuir elevada potencialidade para o consumo in natura e processamento industrial. A polpa e o suco sÃo importantes componentes da dieta humana por serem considerados uma fonte natural de carboidratos, carotenoides, vitaminas e compostos fenÃlicos, substÃncias com alto potencial antioxidante, e tÃm despertado o interesse de diferentes grupos de pesquisa. Este trabalho teve como objetivo estudar a estabilidade da polpa de caju com conservantes, pasteurizada e concentrada congelada durante 12 meses de armazenamento, atravÃs de determinaÃÃes quÃmicas, fÃsico-quÃmicas e microbiolÃgicas e a elaboraÃÃo de nÃctar e suco tropical adoÃado, estudando a estabilidade sensorial dos mesmos durante 360 dias de armazenamento da polpa. As polpas nÃo apresentaram interaÃÃo significativa para pH, sÃlidos solÃveis, acidez titulÃvel e coordenada de cor a. O pH e os sÃlidos solÃveis variaram com o tempo mas mantiveram-se dentro dos padrÃes da legislaÃÃo. A acidez nÃo variou com o armazenamento. A coordenada de cor a* ajustaram ao modelo cÃbico. O Ãcido ascÃrbico variou de 190,65 a 308,45mg/100g na polpa com conservantes, 170,95 a 299,70 mg/100g na polpa pasteurizada e de 514,68 a 865,42mg/100g na polpa concentrada, valores estes bastante expressivos. Pigmentos escuros solÃveis, luminosidade, hue, croma, carotenoides, teor de polpa, aÃÃcares totais apresentaram interaÃÃo significativa e foram avaliados por regressÃo variando com o tempo de armazenamento, exceto a coordenada de cor b*. Os teores de aÃÃcares totais mantiveram-se em torno de 10,01 a 13,25% nas polpas com conservantes e pasteurizadas a 24 a 27% na polpa concentrada, sendo estes em sua maioria representados por aÃÃcares redutores. As anÃlises microbiolÃgicas confirmaram a eficÃcia das etapas de processamento, tratamento tÃrmico e concentraÃÃo na manutenÃÃo da qualidade microbiolÃgica, uma vez que nÃo foi observado crescimento de microrganismos durante o perÃodo de armazenamento. Os nÃctares e os sucos tropicais adoÃados de caju apresentam-se na faixa de aceitaÃÃo sensorial em todos os atributos avaliados. O congelamento das polpas de caju com conservantes, pasteurizada e concentrada à viÃvel uma vez que nÃo ocorrem perdas significativas na qualidade dos produtos. A polpa de caju concentrada apresentou as melhores notas nos atributos sensoriais avaliados. / The cashew (Anacardium occidentale, L.) has a great economic importance to the Northeast region, notably for the great acceptance by consumers, both for their sensory properties (color, aroma, flavor, texture) as for its nutritional and functional values. It stands out among the fruit species native to the Northeast because it has high potential for fresh consumption and industrial processing. The cashew and cashew apple juice are important components of the human diet because they are considered a natural source of carbohydrates, carotenoids, vitamins and phenolic compounds, substances with high antioxidant potential, and have attracted the interest of various research groups. This work aimed to study the stability of cashew apple pulp with preservatives, pasteurized and concentrated frozen storage for 12 months, through to chemical, physical-chemical and microbiological analysis. And production of cashew apple nectar and cashew apple sweetened tropical juice and sensorial stability during 360 days of storage of the pulp. The pulps showed no significant interaction for pH, soluble solids, acidity and color coordinated. The pH and soluble solids varied with time but remained within standards legislation. The acidity no change during the storage. The color coordinate set to the cubic model. The parameters vitamin C ranged from 190.65 to 308.45 in the pulp with preservatives, 170.95 to 299.70 in the pulp pasteurized and from 514.68 to 865.42 mg/100g in concentrated pulp, these values very expressive. Dark pigments soluble, brightness, hue*, chroma*, carotenoids, pulp content, total sugar showed significant interaction were assessed by regression with time varying storage except color coordinate b. The concentration of total sugars remained around 10.01 to 13.25% for pulps with preservatives and pasteurized,and to 24 to 27% in the concentrated pulp, which are mostly represented by sugars. The microbiological analyses confirmed the effectiveness of the processing, thermal treatment and concentration in the maintenance of the microbiological quality, once growth of microorganisms was not observed in the product during the storage period. The cashew apple nectars and juices sweetened have good acceptability in all sensory attributes. The frozen pulps cashew with preservatives, pasteurized and concentrated is viable since no significant losses occur in the quality of products.