Magistro darbe vertinama medynų įvairovė biologinės įvairovės požiūriu ir nustatomos teritorijos palankiausios biologinei įvairovei ir jos apsaugai. Darbo objektas – VĮ Švenčionėlių miškų urėdijos Januliškio girininkijos teritorija. Darbo tikslas – įvertinti Januliškio girininkijos medynus biologinės įvairovės požiūriu ir nustatyti palankiausiais biologinei įvairovei ir jos apsaugai teritorijas. Darbo metodai – 1975 m., 1985 m., 1999 m., ir 2009 m. miškotvarkų duomenų analizavimas ir nustatytų medynų rūšinės įvairovės rodiklių vertinimas, bei remiantis girininkijoje esančiomis saugomomis teritorijomis, kertinėmis miško buveinėmis ir retomis rūšimis, charakterizuojama girininkijos biologinė įvairovė ir nustatomos jos koncentracijos vietos. Darbo rezultatai. Atlikus tyrimus nustatyta, kad Januliškio girininkijoje tenkančio miško masyvo dalyje 1975 m. augo 6, 1985 m. – 7, o 1999 – 2009 m. po 9 medžių rūšių. Tai lėmė liepos, baltalksnio, ąžuolo, uosio, gluosnio ir maumedžio atsiradimas medynuose. Nagrinėjimu laikotarpiu yra pastebimas pušynų mažėjimas, jie sumažėjo 6,4%, tačiau tuo pačiu laikotarpiu yar fiksuojamas eglynų kiekio didėjimas medynų sudėtyje. Jų kiekis medyne padidėjo 4%. Nagrinėtų įvairovės, proporcingumo bei vyravimo rodiklių dinamika rodo medynų rūšinės įvairovės didėjimą iki 1985 m. ir mažėjimą po 1985 m. Nagrinėjant atskirų augaviečių medynų rūšinės įvairovės dinamiką 1975 – 2009 m., pastebėta, kad didžiausia rūšinė įvairovė buvo Nb, Nc, Lc ir Uc augavietėse... [toliau žr. visą tekstą] / In this final master degree work the stands of Januliškis Forestry are evaluated from the perpective of biodiversity and the most favorable environment for biodiversity and it‘s protection is determined. The object of the work – The teritory of SE Švenčionėliai State Forest Januliškis Forestry. The aim of the study – To evaluate Januliškis Forestry stands from the perspective of biodiversity and to determine the most favorable teritories for biodiversity and it‘s protection. Working methods – the analysis of 1975 yr., 1985 yr., 1999 yr., and 2009 yr. data about forest order, the assessment of stands‘ species diversity rates and the characterization of the forestry biological diversity and determination of concentration points based on protected teritories, key biotopes and rare species that are found in the teritory of particular forestry. Study results – The reasearch showed that in the part of the forest which belongs to Juniliškis Forestry in 1975 there were 6 tree species, in 1985 – 7, and in 1999 – 2009 there could be found 9 tree species. This happened due to linden, gray alder, oak, ash, willow and larch stands appearance. In the analyzed period the decrease in number of pines by 6,4% can be observed, on the other hand, at the same time the increase in number of spruces by 4 % is traced. The dynamics of analyzed diversity, proportion and predominance rates indicates the growth of stands‘ species diversity till 1985 and it‘s abatement after 1985. While analysing the... [to full text]

<p>There is a growing interplay of competing realities facing the international community in the general areas of innovation, technological advancement and overall economic development. The highly industrialised wealthy nations, largely located on the Northern hemisphere are on the one hand undoubtedly at the forefront in global research, technology and infrastructure development. The developing and least developed countries on the other hand are mostly situated on the Southern hemisphere. They are not as wealthy or technologically advanced as their&nbsp / Northern counterparts, but are naturally endowed with unique variations of plant, animal and micro-organism species occurring in natural ecosystems, as well as the traditional knowledge on&nbsp / how to use these unique species. This knowledge has been adjudged to be responsible for the sustainable maintenance of the earth&rsquo / s biodiversity. Increasing exploitation of biodiversity,&nbsp / spurred on by the competing realities identified above, has left the earth in a present state of alarm with respect to the uncontrolled loss of biodiversity. The traditional knowledge of local&nbsp / peoples has significantly offered leads to research institutes from the North in developing major advancements in drugs, cosmetics and agriculture. Little or no compensation has however been seen to go back to the indigenous&nbsp / communities and countries that provide resources, and indicate various possibilities through their traditional knowledge to the use of such resources. Efforts by some biodiversity rich countries to&nbsp / ddress this trend through legislation developed in accordance with the principles of the Convention on Biological Diversity have been frustrated due to the inability to enforce their domestic laws outside their borders. Theft of genetic resources and its associated traditional knowledge&nbsp / from such countries has therefore remained a major challenge. Against this backdrop, and on the&nbsp / insistence of biodiversity-rich developing countries, an international regime on access and benefit sharing was negotiated and its final text adopted in 2010. This international regime is as&nbsp / contained in the Nagoya Protocol. This research sets out to examine whether the Nagoya Protocol offers a final solution to the protection of traditional knowledge associated with biodiversity in&nbsp / biodiverse countries. It further examines the importance of domestic legislation in achieving the objectives of the Protocol. The research has been tailored to African biodiverse countries, and&nbsp / seeks these answers within the context of Africa.<br /> &nbsp / </p>

Baigiamajame darbe aptariami kirtavietėse paliekamų pušies biologinės įvairovės medžių ilgalaikio išlikimo neigiamiems aplinkos veiksniams tyrimo rezultatai. Darbo tikslas – surinkti ir įvertinti Nemenčinės miškų urėdijos kirtavietėse paliekamų biologinės įvairovės medžių būklę, kiekį ir išlikimą kirtavietėje. Darbo objektas – plyno kirtimo biržės ir jose palikti biologinės įvairovės medžiai. Darbo metodika. Mokslinės literatūros analizės pagrindu teoriniu aspektu buvo gilinamasi į biologinės įvairovės svarbą ir jos apsaugos priemonių kūrimą bei taikymą. Šiam tikslui pasiekti studijuojamos lietuvių bei užsienio autorių knygos, moksliniai straipsniai, internetinė medžiaga, susijusi su nagrinėjama tema. Tyrimo metu buvo analizuojami keli parametrai: medžių atsparumas aplinkos poveikiams, medžių ilgalaikis išlikimas priklausantis nuo kirtavietės ploto, reljefo, paklotės storio. Darbo rezultatai. Tyrimo metu buvo susisteminta medžių paliekamų bioįvairovei tendencija. Buvo tirtos trijų skirtingų kirtimų metų šešios kirtavietės. Tyrimo metu nustatyta, kad į medžių paliekamų bioįvairovei būklę vis daugiau atsižvelgiama. Kirtimų metu paliekama vis didesnės įvairovės medžių, kurie atrenkami pagal normatyvus, kad būtų kuo ilgaamžiškesnis jų išlikimas. Nemenčinės miškų urėdijoje kirtavietėse po kirtimo praėjus daugiau nei 5 metams daugiausia išliko gyvybingų – žalių – medžių 77 proc. ir tik 23 proc. kitokių nudžiuvusių, nulaužtų ir išverstų medžių. Dauguma žalių medžių dažniausiai... [toliau žr. visą tekstą] / The master thesis presents the pine tree biodiversity and it‘s condition in the clear-felled area had been evaluated in forest areas. Aim of the work – assemble and evaluate the condition, quantity and survival of the trees, left for biological diversity in clear cutting areas in Nemenčinės forestry enterprise. Object of the work – The trees left for the biological diversity in clear cutting areas. Methods of the work – the theoretical aspect of the importance of biodiversity and its conservation and development of the application were analyzed in literature. To achieve this, the Lithuanian and foreign authors, books, scientific articles, online material related to the topic were studied. The study included the analysis of several parameters: tree resistance to environmental factors, long-term survival of the trees from harvesting area, terrain. Result of work - during the studies the biodiversity trend of the pine trees left in the wood clearcuts was structured. Six clearings in three different harvest years have been tested. It have been stated that more and more attention for the biodiversity is considered. During the clear cuttings bigger variety of the trees are left. These trees are selected according to the guidelines in order to make the more durable. After more than 5 years in the Nemenčinės forestry enterprise - the majority of trees in the clearcut forest - 77 % of them - are well growing, lush green trees. However, 23 % of the trees are dead, twisted or dumped... [to full text]

This thesis explores the location and nature of the power that is deepening and broadening the revolution in modern biotechnologies, and which is inherent in the global governance of one type of genetic resource — plant genetic resources. Plant genetic resources are of increasing importance within the global political economy and ecology because of the power/knowledge networks contributing to, and responding to developments in the biotechnology sector, and concerned with the rampant erosion of biological diversity. The thesis argues that transnational norms, values and knowledge are important aspects of power. Discursive power, and particularly the power inherent in discourses of sustainable development, security and human rights, are a central focus of the thesis. The thesis challenges realist, neo-realist and other structural analyses of power which focus on relative distributions of power at the level of individual states or at the global level.

This thesis explores the location and nature of the power that is deepening and broadening the revolution in modern biotechnologies, and which is inherent in the global governance of one type of genetic resource — plant genetic resources. Plant genetic resources are of increasing importance within the global political economy and ecology because of the power/knowledge networks contributing to, and responding to developments in the biotechnology sector, and concerned with the rampant erosion of biological diversity. The thesis argues that transnational norms, values and knowledge are important aspects of power. Discursive power, and particularly the power inherent in discourses of sustainable development, security and human rights, are a central focus of the thesis. The thesis challenges realist, neo-realist and other structural analyses of power which focus on relative distributions of power at the level of individual states or at the global level.

Made available in DSpace on 2015-03-26T13:33:47Z (GMT). No. of bitstreams: 1 texto completo.pdf: 774388 bytes, checksum: b5f67d98b4d8c8676a2f3b6ddeaf9ac8 (MD5) Previous issue date: 2006-02-20 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / The research proposal is to evaluate the research and intervention projects funded by the National Environmental Fund, between 1990 and 2003. Usually, evaluation research concern is on changing socioeconomic projects, but here it is used to understand the research and intervention projects under environmental science. The empirical reference was restricted to the National Environmental Fund (NEF), an organization of the Ministry of Environment that has the implementation of the National Environmental Policy as its primary mission. The thematic area of this investigation was the Conservation Biology (CB), widely recognized as a crisis discipline, mainly established in the 1980 decade. Using evaluation research as general framework, the main objectives were : i) to verify the temporal development of the research and intervention orientation through the evaluation of 710 project objectives; ii) to verify the concepts applied to intervention and conservation as the interaction between them, through the evaluation of 118 project objectives of the sub-theme Sustainable Management of Fauna and Flora; iii) to verify the presence of the Conservation Biology Principles and the incorporation of the Principles for the Conservation of Wild Living Resources (considered an important framework for CB) and the inclusion of evaluation mechanisms through the evaluation of 30 spontaneous and inductive demands. It was observed a dominance of interventionist orientation, with only 19,2% of the projects with research and interventionist objectives. The relationship between concepts of research and intervention is weak, only observed between the concepts of ex situ conservation and infra-structure and between habitat conservation and habitat management. The majority of the projects are directed toward the maintenance of biodiversity, mainly motivated by intrinsic values for conservation. From the seven of the Principles for the Conservation of Wild Living Resources, only three were present in more than 50% of the projects, being those related to the recognizing the need for conservation, the interaction between natural and social sciences and the need for communication. In only one project it was verified the existence of mechanisms for project evaluation. These results highlighted that many conservationist interventions are not being based on the scientific knowledge, which could result in simplistic actions toward conservative ends. Besides, it should be considered that in Conservation Biology it is essential a close relationship between natural and social sciences. Many unresolved practical problems might be attended whether interrelation between biological and social questions could be faced within this interdisciplinary context. The researcher training tradition could also explain the emphasis on the biodiversity maintenance, in spite of Biological integrity and ecosystem heath. The low frequency of the Principles for the Conservation of Wild Living Resources also portraits the existence of few works in natural resource sustainable use, which demands the involvement of political and social questions, reinforcing the need for a open-minded education of the conservationists. The lack of evaluation mechanisms turns difficult to know what is effective in conservation terms, increasing the uncertainty about this practice and compromising the decision making process. / A proposta dessa pesquisa é avaliar projetos de pesquisa científica e de intervenção financiados pelo Fundo Nacional do Meio Ambiente (FNMA),entre os anos de 1990 a 2003. A pesquisa de avaliação é comumente realizada em projetos que buscam mudanças sócio-econômicas, mas nesse trabalho ela foi utilizada para se compreender a pesquisa e a intervenção ambientais, tendo como unidade de análise projetos com características técnicas e científicas. A referência empírica foi o FNMA, um órgão do Ministério do Meio Ambiente que tem como missão a implementação da Política Nacional de Meio Ambiente. A área temática da investigação foi a Biologia da Conservação, reconhecida como uma disciplina de crise, oficializada na década de 1980. Tendo como referência a pesquisa avaliativa, se propôs nesse trabalho verificar: i) a evolução temporal das orientações em pesquisa e intervenção dos projetos, pela avaliação de 710 objetivos de projetos; ii) os conceitos de intervenção e de conservação utilizados, assim como a interação desses, pela avaliação de 118 objetivos de projetos da linha temática Manejo Sustentável da Flora e da Fauna; iii) a presença dos princípios de Biologia da Conservação (BC), da incorporação dos Princípios para a Conservação de Recursos de Biodiversidade e a inclusão de mecanismos de avaliação, pela avaliação de 30 projetos de demanda espontânea e induzida. Verificou-se que houve uma predominância de projetos com orientação intervencionista, existindo apenas 19,2% de projetos com objetivos de pesquisa e intervenção. A relação entre conceitos de pesquisa e conceitos de intervenção também é pequena, só sendo observada entre os conceitos de conservação ex situ e infra-estrutura e entre os de conservação de habitat e manejo de habitat. A maioria dos projetos é dirigida à manutenção da biodiversidade, motivados principalmente por valores intrínsecos de conservação. Dos sete Princípios para a Conservação de Recursos de Biodiversidade, apenas três estiveram presentes em mais de 50% dos projetos, sendo os que se remetiam ao reconhecimento da necessidade de conservação, da interação entre ciências naturais e sociais e que previam formas de comunicação. Em apenas um projeto foi verificada a existência de formas de avaliação. Esses resultados destacam que muitas das intervenções conservacionistas não estão sendo amparadas pelo conhecimento científico podendo resultar em ações simplistas na direção de objetivos conservacionistas. Além disso, deve-se considerar que na área da conservação biológica é indispensável que exista uma relação entre ciência natural e social para o não comprometimento das ações. Muitos dos problemas práticos não resolvidos poderiam tratados se questões sócias e biológicas fossem inseridas num contexto interdisciplinar. A formação dos pesquisadores também pode explicar a ênfase dada, nos projetos avaliados, ao objetivo de manutenção de biodiversidade, em detrimento dos que tratam de integridade biótica e saúde dos ecossistemas. Por sua vez, a baixa presença dos Princípios para a Conservação de Recursos de Biodiversidade reflete a existência de poucos trabalhos com uso sustentável de recursos naturais, área que exige o envolvimento de questões políticas e sociais, reforçando a necessidade de uma formação mais ampla dos conservacionistas. A falta de mecanismos de avaliação nos projetos dificulta saber o que realmente é efetivo em conservação, aumentando as incertezas sobre essa prática e comprometendo processos decisórios.

Made available in DSpace on 2014-12-17T15:54:56Z (GMT). No. of bitstreams: 1 MariaVEN_DISSERT.pdf: 3704099 bytes, checksum: 9d6c4ca61e30a590f9ddc586250471d2 (MD5) Previous issue date: 2011-02-15 / Important issues involving the awakening to the need for conservation of biodiversity and the importance of establishing protected areas as a strategy in pursuit of environmental protection, are increasingly being developed in biological and social investigative fields. In this sense, this research aimed to emphasize the use of environmental perception of social agents are significant elements for the understanding of the man / nature, and develop educational activities aimed at raising awareness and changing attitudes towards environmental issues thus promoting reflections on Environmental Education (EE) as a critical and transformative tool for conservation of rich biological diversity. This research covers as a place of study, schools located in the Environmental Protection Area Jenipabu (APAJ), Rio Grande do Norte. Methodology in general, we highlight the use of questionnaires and mind maps as generators of the contents of empirical research, and execution of content analysis for the treatment of data collected. This dissertation has two chapters in the form of scientific articles, where the first is entitled: "Study of the perceptions and evaluation of interactions concerning environmental education in schools in a conservation area of Rio Grande do Norte - Brazil", obtaining thus a primary diagnosis for analysis about the visions that students and teachers from two schools located in APAJ have on the environment. The second article, entitled: "Effective and analysis of educational activities that promote biodiversity in a coastal area of Environmental Protection Northeast - Brazil" provides an analysis of the educational use of biodiversity as a way to raise awareness of the need for environmental conservation. It appears from research that there is a lack of training in EA by teachers, but there is a need for greater involvement of students in conservation areas, however, from the analysis of educational activities, we observed that the effectiveness of such actions acts to promote awareness and change in actors involved. Thus, environmental education needs to take into account the different perceptions found in each individual, and it can not be based solely on transmission of knowledge, so that we reach a model of conservation. / Temas importantes envolvendo o despertar para a necessidade de conserva??o da biodiversidade e da import?ncia de se criar Unidades de Conserva??o, como estrat?gia em busca da defesa do meio ambiente, est?o cada vez mais sendo desenvolvidos em campos investigativos biol?gicos e sociais. Nesse sentido, objetivou-se nessa pesquisa, enfatizar o uso da percep??o ambiental dos agentes sociais sendo elementos significativos para o entendimento da rela??o homem/natureza, e desenvolver a??es educacionais voltadas para sensibiliza??o e mudan?a de atitudes frente ?s quest?es ambientais para assim, promover reflex?es sobre a Educa??o Ambiental (EA) cr?tica e transformadora como um rico instrumento de conserva??o da diversidade biol?gica. Esta pesquisa abrange como local de estudo, escolas situadas na ?rea de Prote??o Ambiental Jenipabu (APAJ), Rio Grande do Norte. Na Metodologia Geral, destacam-se a utiliza??o de question?rios e mapas mentais como geradores dos conte?dos emp?ricos da pesquisa, e efetiva??o da an?lise de conte?do para o tratamento dos dados coletados. Esta disserta??o conta com dois cap?tulos em formato de artigos cient?ficos, onde o primeiro intitula-se: Estudo das percep??es e avalia??o de intera??es educativas voltadas ao meio ambiente em escolas de uma Unidade de Conserva??o do Rio Grande do Norte Brasil , obtendo, assim, um diagn?stico primordial para an?lise acerca das vis?es que alunos e professores de duas escolas situadas na APAJ t?m sobre o meio ambiente. O segundo artigo, cujo t?tulo ?: Efetiva??o e an?lise de a??es educativas promotoras da biodiversidade em uma ?rea de Prote??o Ambiental costeira do Nordeste Brasil traz uma an?lise sobre a utiliza??o de a??es educativas sobre a biodiversidade como forma de sensibiliza??o para a necessidade de conserva??o ambiental. Infere-se da pesquisa que h? car?ncia na forma??o em EA por parte dos professores, como tamb?m h? necessidade de um envolvimento maior dos alunos com a Unidade de Conserva??o Por?m, a partir da an?lise das a??es educativas realizadas, observamos que a efetiva??o de tais a??es atua promovendo sensibiliza??o e transforma??o nos sujeitos envolvidos. Sendo assim, a Educa??o Ambiental precisa levar em considera??o as diversas percep??es encontradas em cada indiv?duo, e que n?o pode ser pautada apenas na transmiss?o de conhecimentos, para que assim, alcancemos um verdadeiro modelo de conserva??o.

Magister Legum - LLM (Mercantile and Labour Law) / Traditional Knowledge (TK) has previously been considered a 'subject' in the public domain, unworthy of legal protection. However, the last few decades have witnessed increased discussions on the need to protect the knowledge of indigenous peoples for their economic sustenance, the conservation of biodiversity and modern scientific innovation. Questions remain as to how TK can best be protected through existing, adapted or sui generis legal frameworks. Based on an examination of the formal knowledge-protection mechanisms (i.e. the existing intellectual property system), this mini-thesis contends that these existing systems are inadequate for protecting TK. As a matter of fact, they serve as veritable platforms for incidences of biopiracy. It further argues that the many international initiatives designed to protect TK have so far failed owing to inherent shortcomings embedded in them. Furthermore, a comparative assessment of several national initiatives (in New Zealand, South Africa and Kenya) supports an understanding that several domestic efforts to protect TK have been rendered ineffective due to the insurmountable challenge of dealing with the international violations of local TK rights. It is therefore important that on-going international negotiations for the protection of TK, including the negotiations within the World Intellectual Property Organisation's Intergovernmental Committee on Intellectual Property and Genetic Resources, Traditional Knowledge and Folklore (IGC), do not adopt similar approaches to those employed in previous initiatives if TK must be efficiently and effectively protected. This mini-thesis concludes that indigenous peoples possess peculiar protection mechanisms for their TK within the ambit of their customary legal systems and that these indigenous mechanisms are the required anchors for effective global protections.

Magister Legum - LLM (Mercantile and Labour Law) / Traditional Knowledge (TK) has previously been considered a 'subject' in the public domain, unworthy of legal protection. However, the last few decades have witnessed increased discussions on the need to protect the knowledge of indigenous peoples for their economic sustenance, the conservation of biodiversity and modern scientific innovation. Questions remain as to how TK can best be protected through existing, adapted or sui generis legal frameworks. Based on an examination of the formal knowledge-protection mechanisms (i.e. the existing intellectual property system), this mini-thesis contends that these existing systems are inadequate for protecting TK. As a matter of fact, they serve as veritable platforms for incidences of biopiracy. It further argues that the many international initiatives designed to protect TK have so far failed owing to inherent shortcomings embedded in them. Furthermore, a comparative assessment of several national initiatives (in New Zealand, South Africa and Kenya) supports an understanding that several domestic efforts to protect TK have been rendered ineffective due to the insurmountable challenge of dealing with the international violations of local TK rights. It is therefore important that on-going international negotiations for the protection of TK, including the negotiations within the World Intellectual Property Organisation's Intergovernmental Committee on Intellectual Property and Genetic Resources, Traditional Knowledge and Folklore (IGC), do not adopt similar approaches to those employed in previous initiatives if TK must be efficiently and effectively protected. This mini-thesis concludes that indigenous peoples possess peculiar protection mechanisms for their TK within the ambit of their customary legal systems and that these indigenous mechanisms are the required anchors for effective global protections.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Estudos de longo prazo são essenciais para avaliar efeitos que em pouco tempo não seriam possíveis observá-los. Moluscos límnicos são parte importante dos ecossistemas aquáticos, além se serem vetores de parasitos de importância médica. A comunidade de moluscos do riacho da Vila do Abraão já havia sido estudada, havendo registro de sete espécies, incluindo a exótica Melanoides tuberculata. O objetivo geral do trabalho foi acompanhar a dinâmica das populações de moluscos límnicos, com ênfase em M. tuberculata durante sete anos. Avaliamos as variações na comunidade de moluscos límnicos em um riacho na Vila do Abraão Ilha Grande, Angra dos Reis, RJ, Brasil. Foram realizadas 42 coletas bimestrais no período de julho/2006 a novembro/2013. O trecho estudado foi dividido em oito pontos de coleta, com três coletores em cada, realizando buscas de 15 minutos, totalizando 45 minutos por ponto. Foram mensurados os fatores abióticos: luminosidade, temperatura do ar e da água, umidade, pH, condutividade, profundidade e oxigênio dissolvido. Para o acompanhamento da comunidade, foi calculada a abundância, abundância relativa, constância, índices de diversidade Simpson e Shannon, assim como equitabilidade e uniformidade, para cada espécie em cada expedição de coleta. Para investigar a associação dos moluscos com a helmintofauna, realizou-se o teste de exposição a luz. Para biomassa, de M. tuberculata foi calculado o peso seco da parte mole, e os valores de abundância foram convertidos para densidade. No total do estudo, foram coletados 90.718 espécimes: oito gastrópodes (M. tuberculata, Heleobia australis, Potamolithus sp., Physa acuta, Biomphalaria tenagophila, Gundlachia ticaga, Ferrissia fragilis e Omalonyx matheroni) e um bivalve (Pisidium punctiferum). As duas espécies mais abundantes foram: M. tuberculata, com 80% e P. acuta, com 8% do total dos indivíduos. Melanoides tuberculata foi a espécie mais constante do estudo, já que após Fevereiro/2009 foi encontrada em todos os pontos de coleta, exceto nas últimas expedições. Os índices de diversidade apresentaram valores diferentes entre Simpson e Shannon, mas com variações semelhantes. A equitabilidade e a uniformidade foram muito baixas, indicando uma dominância de M. tuberculata. Apenas M. tuberculata se apresentou parasitado por Centrocestus formosanus, com a maior prevalência em Abril/2013, quando mais de 50% da população estava parasitada. A biomassa foi calculada em 8155 g durante o estudo, e a produção secundária foi estimada em 423 g m-2year-1 no último ano estudado, sofrendo diminuição de acordo com a queda populacional de M. tuberculata que por sua vez, foi possivelmente influenciada pelo parasitismo. Podemos concluir que a riqueza da comunidade aumentou de sete para nove espécies, sendo seis exóticas e três nativas. A comunidade de moluscos da Vila do Abraão encontra-se dominada por M. tuberculata, este sobrepujando as demais, em abundância e biomassa. Tendo em vista o perigo das introduções, reforçamos a importância dos estudos de longo prazo para o acompanhamento de comunidades, sendo importantes para subsidiar estratégias de conservação principalmente em unidades de conservação. / Long-term studies are essential to evaluate certain ecological effects, that are otherwise impossible in short term studies. Freshwater molluscs are an important part of aquatic ecosystems as also act as vectors of medical importance parasites. The mollusc community of stream of Vila do Abraão were already studied, there are records of seven species, including the exotic Melanoides tuberculata (Müller, 1774). The main goal of this study was to evaluate the mollusc dynamicsof the populations, with emphasis on M. tuberculata during seven years. The study area was a small impacted stream in Vila do Abraão, Ilha Grande, Angra dos Reis, Rio de Janeiro, Brazil. 42 bimonthly field expeditions were carried out from July/2006 to November/2013. The studied section of the stream was divided in eight collection stations, where three collectors searched for the molluscs during 15 minutes, totaling 45 minutes per collecting station. Were measured the following abiotic factors: luminosity, air and water temperature, humidity, pH, conductivity, depth and dissolved oxygen. Abundance, relative abundance, constancy, Shannon and Simpson diversity indices, equitability and uniformity were calculated for the community in each collecting expedition. To investigate the association of molluscs with helmintes was investigated through the exposure of the snails to light. For biomass was calculated the dry weight of the soft part of the M. tuberculata and the abundance was converted to density. During the seven years 90,718 specimens were collected: eight gastropods (M. tuberculata, Heleobia australis, Potamolithus sp., Physa acuta, Biomphalaria tenagophila, Gundlachia ticaga, Ferrissia fragilis e Omalonyx matheroni) and one bivalve (Pisidium punctiferum). The two most abundant species were M. tuberculata, 80%, and P. acuta, 8% of all molluscs collected. Melanoides tuberculata was the most constant species, and found in all collection stations after February/2009, except in the last expeditions. The diversity indices presented different values, however with similar variations. The equitability and uniformity were low, indicating a dominance of M. tuberculata. The parasite, Centrocestus formosanus, was found only in M. tuberculata. The highest parasite abundance was found in April/2013, when 50% of the population were parasited. The total M. tuberculata biomass was estimated as 8155 g and the annual secondary production was 423 g m-2year-1 in the last year of the study, and was possibly influenced by the parasite in population. We can conclude that community richness increased, from seven to nine species (six exotic and three native). The mollusc community of Vila do Abraão is dominated by M. tuberculata, in terms of abundance and biomass. The problems of introduced species are well-known, the long-term study is a good tool to understand the effects in a community perspective. This kind of study can give important information for to management and conservation strategies, especially in conservation units.