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A conservationist approach on environmental diagnosis of ground use in the Iguatemi river basin, Mato Grosso do Sul State, Brazil - doi: 10.4025/actascibiolsci.v34i3.9001 Biological Sciences
Souto, Marco Antonio Gomes; Instituto Reserva Natural.
Landscape Ecology is a contemporary approach in conservation studies in which, coupled to the development and use of GIS-based tools, provides new methods for the analysis of forest fragments. Based on these new approaches, the environmental assessment of ground use in the Iguatemi river basin Mato Grosso do Sul State, Brazil is provided through conservation-based flora and ecology aspects. A regional map of ground use with field-collected data using Rapid Ecological Assessment methodology and digital satellite images was prepared. AER analysis showed a highly impacted region featuring intense transformation in ground use with a conversion of 87% of native forest into grazing and agriculture land. The general situation is inconsistent with APA guidelines,...
Palavras-chave: 2.05.00.00-9; 2.05.03.00-8 landscape ecology; Conservation; Forest fragments Ecologia; Ecologia Aplicada.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9001
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Distribution of the Orange-winged Parrot Amazona amazonica (Linnaeus, 1766) (Aves, Psittacidae) in the coastal region of the State of Paraíba, Brazil Biological Sciences
Melo, Daniela de Carvalho; Universidade Federal da Paraíba; Ferreira, Alvino Pedrosa; Universidade Federal da Paraíba; Leal, Leandro Guedes Pereira dos Santos; Universidade Federal da Paraíba; Souza, Elivan Arantes de; Instituto Chico Mendes de Conservação da Biodiversidade; Loures-Ribeiro, Alan; Universidade Federal da Paraíba; Sousa, Antonio Emanuel Barreto Alves de; Instituto Chico Mendes de Conservação da Biodiversidade.
Fifty-six villages along the coast of the State of Paraíba, Brazil, were visited to determine and map the occurrence of Amazona amazonica (Linnaeus, 1766). Search was conducted with binoculars and the residents of each locality were interviewed using a questionnaire to obtain information about the occurrence and species´s biological data. Reports of recent and old occurrences, absence and feeding areas were registered. The food items mentioned were fruits, such as cashew, cashew nuts, palm oil, and agricultural products, such as corn. The reproductive period occurred between November and December. Breeding sites were mangrove areas and coconut trees, with nests being made in tree hollows. Questionnaires helped to elaborate a distribution map of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.05.00.00-9; 2.04.06.01-0 conservation; Curica; Distribution map; Questionnaires; Reproduction Ecologia; Conservação das Espécies Animais Ecologia; Conservação das Espécies Animais.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21768
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Effects of cutting disturbance in Schoenoplectus californicus (C.A. Mey.) Soják on the benthic macroinvertebrates - doi: 10.4025/actascibiolsci.v33i1.6383 Biological Sciences
Silveira, Thiago Cesar Lima; UFRGS; Rodrigues, Gilberto Gonçalves; UFBA; Souza, Gabriela Peixoto Coelho de; UFRGS; Würdig, Norma Luiza; UFRGS.
Lagoons are considered protected areas because these systems play a key ecological role. However, the extraction of macrophyte Schoenoplectus californicus is held for manufacture of handcrafts, being an alternative income for riverbank communities. This study evaluated the impact of S. californicus experimental cutting on benthic macroinvertebrates trough a field experiment. Macroinvertebrates were sampled at 1, 12, 26 and 60 days after the macrophyte cutting in demarked plots (1 m²), as well at control plots. The families number was not statistically different (ANOVA, p > 0.05), but the total density of invertebrates, and the density of Ceratopogonidae were significant (ANOVA, p < 0.05) for interaction between sampling date and treatment. A...
Palavras-chave: 2.00.00.00-6; 2.05.00.00-9; Disturbance; Bioindication; Vegetal management; Schoenoplectus californicus; Aquatic macrophyte; Non-wood products Ecologia Disturbance; Bioindication; Vegetal management; Schoenoplectus californicus; Aquatic macrophyte; Non-wood products.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6383
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Effects of intensive fish-farming and domestic wastewater on the periphytic algal community in a tropical coastal lagoon (Juara, Brazil) - doi: 10.4025/actascibiolsci.v35i3.17094 Biological Sciences
Almeida, Stéfano Zorzal de; Instituto de Botânica; Fernandes, Valéria de Oliveira; Universidade Federal do Espírito Santo.
This study aimed at evaluating the effects of the intensive fish-farming and the domestic wastewater on the structure of the phycoperiphyton community. Three experimental supports containing artificial substrate were assembled in two sampling sites: IF – region with intensive fish-farming and DW – near the domestic wastewater discharge. Samplings were carried out after the 21st, 26th and 31st day of colonization. The abiotic variables evaluated were: transparency, electrical conductivity, pH, turbidity, total suspended solids, alkalinity, dissolved oxygen, water temperature and nutrients. Phycoperiphyton was examined with regard to density, richness, abundance, dominance, diversity and eveness. Nutrients (total nitrogen, nitrate, ammonia nitrogen,...
Tipo: Estudos exploratórios Palavras-chave: 2.05.00.00-9; Bacillariophyceae; Late successional stage; Nutrients; Phycoperiphyton; Artificial substrate 2.05.00.00-9.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/17094
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Scientometric diagnosis of the use of remote sensing images in Landscape Ecology studies - doi: 10.4025/actascibiolsci.v35i1.8444 Biological Sciences
Sarragiotto, Mariana Cristina; Universidade Estadual de Maringá; Benedito, Evanilde; Universidade Estadual de Maringá.
This work analyzed the implementation of images from the remote sensors ASTER, CBERS, IKONOS, LANDSAT, MODIS, NOAA, QUICKBIRD and SPOT in Brazilian and international Landscape Ecology studies, developed between 1991 and July 2009. The study analyzed works published in article form using the ISI Web of Knowledge website, and theses and dissertations from the “Thesis Database” at CAPES (Coordenação de Aperfeiçoamento de Pessoal de Ensino Superior). A total of 124 Brazilian and 144 international published works were examined, analyzing 11 and six parameters, respectively. It was observed that the images from sensors MODIS (53%) and LANDSAT (32%) are employed more frequently in international research studies, whereas in Brazil there is preference for products...
Tipo: Cienciometria Palavras-chave: 2.05.00.00-9; 2.05.02.00-1 remote sensing; Database; Scientometrics; LANDSAT; SPOT; MODIS Ecologia 2.05.02.00-1 Ecologia.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8444
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Structure and regeneration capacity of a urban forest fragment - doi: 10.4025/actascibiolsci.v35i2.14810 Biological Sciences
Souza, Débora Cristina; Universidade Tecnológica Federal do Paraná; Alves, Arielle Vanessa Barbosa; Universidade Tecnológica Federal do Paraná; Tolomeotti, Luciana Oliveira; Universidade Tecnológica Federal do Paraná; Silva, Jilvan Ribeiro da; Universidade Tecnológica Federal do Paraná; Franco, Janaina de Melo; Universidade Tecnológica Federal do Paraná.
Understanding the plant communities affected by human activities related to urbanization is an important tool to conserve these. In this way, this study on an urban forest fragment aimed to evaluate, through a phytosociological study and investigation of the germination of the seed bank, the current forest structure, the successional strata, and the regenerative capacity of the remnant. Three different stages comprised this research, the first with a floristic survey of the entire forest remnant, then the phytosociological study of the canopy (PAP above 10 cm) and regeneration strata (PAP 5-10 cm), and at last, the study on the seed bank. The phytosociological survey of the canopy stratum presented 1,368 individuals, with 41 species distributed into 24...
Palavras-chave: 2.05.00.00-9; 2.05.02.00-1 forest remnant; Phytosociology; Seed bank florestal Ecologia.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/14810
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Structure of understory bird communities in Atlantic Forest Remnants in Northeastern Brazil Biological Sciences
Melo, Daniela de Carvalho; Ferreira, Alvino Pedrosa; Loures Ribeiro, Alan.
The Atlantic Forest in the State of Paraíba integrates the Pernambuco Center of Endemism. The present work investigated understory bird communities of three of its remnants using ten mist nets installed at eight different points of the forest understory of each area. We captured 333 birds of 44 species and 19 families. Bird richness and abundance did not differ between the three remnants (KW = 6.08; p = 0.04 and KW = 10.54; p = 0.004). The composition was little similar among them, and each area presented high species diversity and evenness. The most captured species were Arremon taciturnus (n = 40), Chiroxiphia pareola (n = 32) and Conopophaga melanops (n = 28). C. melanops has a local threat status of “vulnerable” and is considered endemic. Endangered...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.05.00.00-9; 2.05.02.00-1 avifauna; Endangered species; Endemic species; Mist nets; Richness. Ecologia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/37145
Registros recuperados: 7
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