01. Universidade Federal Rural de Pernambuco - UFRPE (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/1
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Resultados da Pesquisa
Item Consequência da mudança de fase sobre atributos funcionais em ecossistemas recifais(2021-12-17) Fialho, Cláudio Henrique Gomes; Gomes, Paula Braga; http://lattes.cnpq.br/3289333472399959; http://lattes.cnpq.br/2275122243078076Coral reefs are very important to marine biodiversity, in addition they provide important ecosystem services to human populations. Even so, they have been experiencing a reduction in coral cover and species diversity, mainly due to overfishing, pollution, disease and climate change. The association of these anthropic factors with alterations in the structure of benthic communities and loss of resilience is prevalent in the literature, with the possibility of replacing a community dominated by corals with a new stage of dominance by other organisms, a process known as "phase shift". The diversity of functional attributes present in an ecosystem is an important measure of functional diversity, and as it is related to the availability of ecosystem services, it allows a comparison of the state of these environments, before/after changes such as phase shifts. Here, we aim to assess the consequence of a phase shift on functional traits in reef ecosystems. For this, initially, data such as geographic location, time interval, benthic dominance before and after phase shifts were analyzed, as well as possible causes of 29 records found in an extensive literature review. After listing the species involved in these processes of phase change and selection, from the related literature, of the functional attributes that were evaluated, a new review was carried out in search of the traits of these species. After obtaining all the data, descriptive analyzes were performed to assess the overlapping of functions between building and non-building organisms and to discuss the functional consequences of the phase shift process. 29 records were found that describe phase shifts processes in coral reefs. Records in the Caribbean region represented 41.38% of all the records found, which may be related to the high levels of investment in research in the region, as well as anthropic impacts related to the high rate of human occupation from tourism and other economic activities. There was a predominance (62.07%) of processes involving organisms such as sponges, soft corals and echinoids in the replacement of the original phases. However, of the 29 records found, 11 (39.29%) involve macroalgae, which demonstrates the frequency of these organisms in replacing the coral cover on reefs. Comparing the set of attributes of the original and new phases, it was possible to notice negative, positive and neutral consequences. There was a great incompleteness in the data from the studies used in the analyses, requiring a great sampling effort. Finally, it was possible through this work to note that when a reef loses corals, in addition to building capacity, it also loses several other functional attributes related to the species. In addition, the new dominant species bring new attributes that will characterize the new phase of the ecosystem, which may be positive changes. We hope to have contributed to the expansion of knowledge in relation to these processes, in addition to generating subsidies for further studies to be carried out. Research of this nature is important for the possibility of helping managers and governance in measures to mitigate damage, conservation and even the recovery of these ecosystems.Item Educação ambiental e consciência entomológica em comunidades da Mata Norte e Sul do estado de Pernambuco(Universidade Federal Rural de Pernambuco (SEDE); Departamento de Biologia, 2009) Santos, Arlene Bezerra Rodrigues dosCom este Projeto de Extensão iremos propalar a integração de atividades realizadas no Laboratório de Entomologia - Área de Zoologia do Departamento de Biologia da Universidade Federal Rural de Pernambuco - UFRPE, em escolas públicas e comunidades rurais dos Municípios das Regiões da Mata Norte e Sul do Estado de Pernambuco (Buenos Aires, Paudalho, Lagoa do Carro, Sirinhaém, Rio Formoso e Escada). Com atividades associadas à Educação Ambiental, a qual teremos condições de acolher com atenção e dedicação o público em geral, criando oportunidades de estágios para estudantes universitários, onde estes irão por em prática os conhecimentos adquiridos em diversas disciplinas, especialmente aquelas das Áreas de Zoologia, Entomologia e Ecologia. As escolas serão beneficiadas com Coleções Entomológicas Didático - Científicas, melhorando assim, o ensino - aprendizagem na Área de Ciências. Além, de divulgar informações ligadas à conscientização da importância da preservação da Biodiversidade e do Ecossistema. Divulgando, a conscientização da preservação da biodiversidade, levando as comunidades um maior conhecimento das diferentes espécies nos ecossistemas, contribuindo para um melhor equilíbrio e utilização dos recursos naturais. Com os resultados alcançados na participação deste projeto teremos uma ampla divulgação da extensão universitária na sociedade em virtude da interação das escolas, comunidades e UFRPE.Item Pode um processo de modificação de habitat alterar a comunidade da meiofauna? Estudo de caso de uma praia arenosa que sofreu um processo de engorda(2019) Cruz, Renata Carolina Maria da; Guilherme, Betânia Cristina; Silva Filho, Mário Guimarães da; http://lattes.cnpq.br/0770757545098826; http://lattes.cnpq.br/3131730022364100; http://lattes.cnpq.br/3354260053065916Sandy beaches are environments with a high biodiversity, presenting a fauna of invertebrates that are resistant and adapted to several adverse situations. The meiofauna is considered by metazoa that pass through the mesh of 0.5 mm of opening and are retained in a mesh of 0.044 mm. The objective of this work was to identify if the sandy beach ofPiedade-PE, which underwent a fattening process, has undergone a structural change in its meiofauna community. The animals of the meiofauna have a way of life adapted to the interstitial environment, and may vary according to the variation of the environment and grain size. The collections were made at Piedade beach before fattening, 1, 7, 15, 30, 60 and 90 days after sediment deposition, in the infralittoral and mediolittoral areas. The collection was performed during the low seas, where a transect perpendicular to the waterline was established and was extracted using a "corer" type sampler in the 10 cm of the sediment, three biosedimentological replicas and one for particle size analysis in the mediolittoral and infralittoral regions. The biosedimentological material was washed, elutrited, and taken to the stereomicroscope to count the meiofauna at the level of large groups. The sediment samples were processedusing a rot-up agitator. The PERMANOVA statistical test was used to verify if there was any change in the community after fattening. The meiofauna was composed of 17 taxa, the Nematoda group being the most abundant. Praia de Piedade underwent several changes in its structure, both in species richness and abundance. PERMANOVA's statistical test showedthat there are differences between the pre-and post-fattening community and that it tends to stabilize after 90 days of fattening may become similar to the meiofauna originally existing on the beach. Thus, the results indicate that after a fattening process the community will be modified.