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| Registros recuperados: 73 | |
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| OLIVEIRA, P. Y. de; SOUZA, J. L. P. de; BACCARO, F. B.; FRANKLIN, E.. |
| Abstract ? In Amazonia, topographical variations in soil and forest structure within "terra-firme" ecosystems are important factors correlated with terrestrial invertebrates' distribution. The objective of this work was to assess the effects of soil clay content and slope on ant species distribution over a 25 km2 grid covering the natural topographic continuum. Using three complementary sampling methods (sardine baits, pitfall traps and litter samples extracted in Winkler sacks), 300 subsamples of each method were taken in 30 plots distributed over a wet tropical forest in the Ducke Reserve (Manaus, AM, Brazil). An amount of 26,814 individuals from 11 subfamilies, 54 genera, 85 species and 152 morphospecies was recorded (Pheidole represented 37% of all... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Beta diversity; Environmental gradient; Formicidae; Tropical forest; Soil texture. |
| Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/660577 |
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| Oliveira,Pollyana Yvonica de; Souza,Jorge Luiz Pereira de; Baccaro,Fabricio Beggiato; Franklin,Elizabeth. |
| In Amazonia, topographical variations in soil and forest structure within "terra-firme" ecosystems are important factors correlated with terrestrial invertebrates' distribution. The objective of this work was to assess the effects of soil clay content and slope on ant species distribution over a 25 km² grid covering the natural topographic continuum. Using three complementary sampling methods (sardine baits, pitfall traps and litter samples extracted in Winkler sacks), 300 subsamples of each method were taken in 30 plots distributed over a wet tropical forest in the Ducke Reserve (Manaus, AM, Brazil). An amount of 26,814 individuals from 11 subfamilies, 54 genera, 85 species and 152 morphospecies was recorded (Pheidole represented 37% of all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beta diversity; Environmental gradient; Formicidae; Soil texture; Tropical forest. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800008 |
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| BERTWELL, T. D.; KAINER, K. A.; CROPPER JUNIOR, W. P.; STAUDHAMMER, C. L.; WADT, L. H. de O.. |
| Harvest of Brazil nuts from the large, iconic tree Bertholletia excelsa generates substantial income for smallholders, providing a strong incentive to conserve the mature forests where it grows. Although much previous work has focused on the impact of nut harvest on new seedling recruits into B. excelsa populations, the connection between harvest rates and long-term population stability is still unclear. Moreover, there is additional uncertainty for Brazil nut management in terms of population response to climate change and other anthropogenic influences. We drew on 14 years of research in two sites in Acre, Brazil with different B. excelsa nut harvest intensities (39% and 81%), to produce stochastic and deterministic matrix population models which... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Bertholletia excelsa; Demography; Matrix population model; Rainfall; Sustainable harvest; Tropical forest; Modelo de população matricial; Colheita sustentável; Floresta tropical. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077079 |
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| RAMOS, F. N.; MORTARA, S. R.; MONALISA-FRANCISCO, N.; ELIAS, J. P. C.; MENINI NETO, L.; FREITAS, L.; KERSTEN, R. de A.; AMORIM, A. M.; MATOS, F. B. de; NUNES-FREITAS, A. F.; ALCANTARA, S.; ALEXANDRE, M. H. N.; ALMEIDA-SCABBIA, R. J. de; ALMEIDA, O. J. G. de; ALVES, F. E.; ALVES, R. M. de O.; ALVIM, F. S.; ANDRADE, A. C. S. de; ANDRADE, S. de; AONA, L. Y. S.; ARAUJO. A. C.; ARAÚJO, K. C. T. de; ARIATI, V.; ASSIS, J. C.; AZEVEDO, C. O. de; BARBOSA, B. F.; BARBOSA, D. E. F.; BARBOSA, F. dos R.; BARROS, F. de; BASILIO, G. A.; BATAGHIN, F. A.; BERED, F.; BIANCHI, J. S.; BLUM, C. T.; BOETLER, C. R.; BONNET, A.; BRANCALION, P. H. S.; BREIER, T. B.; BRION, C. de T.; BUZATTO, C. R.; CABRAL, A.; CADORIN, T. J.; CAGLIONI, E.; CANÊZ, L.; CARDOSO, P. H.; CARVALHO, F. S. de; CARVALHO, R. G.; CATHARINO, E. L. M.; CEBALLOS, S. J.; CEREZINI, M. T.; CÉSAR, R. G.; CESTARI, C.; CHAVES, C. J. N.; CITADINE-ZANETTE, V.; COELHO, L. F. M.; COFFANI-NUNES, J. V.; COLARES, R.; COLLETTA, G. D.; CORRÊA, N. de M.; COSTA, A. F. da; COSTA, G. M. da; COSTA, L. M. S.; COSTA, N. G. S.; COUTO, D. R.; CRISTOFOLINI, C.; CRUZ, A. C. R. da; DEL NERI, L. A.; DI PASQUO, M.; DIAS, A. dos S.; DIAS, L. do C. D.; DISLICH, R.; DUARTE, M. C.; FABRICANTE, J. R.; FARACHE, F. H. A.; FARIA, A. P. G. de; FAXINA, C.; FERREIRA, M. T. M.; FISCHER, E.; FONSECA, C. R.; FONTOURA, T.; FRANCISCO, T. M.; FURTADO, S. G.; GALETTI, M.; GALETTI, M.; GARBIN, M. L.; GASPER, A. L. de; GOETZE, M.; GOMES-DA-SILVA, J.; GONÇALVES, M. F. A.; GONZAGA, D. R.; SILVA, A. C. G. e; GUARALDO, A. de C.; GUARINO, E. de S. G.; GUISLON, A. V.; HUDSON, L. B.; JARDIM, J. G.; JUNGBLUTH, P.; KAESER, S. dos S.; KESSOUS, I. M.; KOCH, N. M.; KUNIYOSHI, Y. S.; LABIAK, P. H.; LAPATE, M. E.; SANTOS, A. C. L.; LEAL, R. L. B.; LEITE, F. S.; LEITMAN, P.; LIBONI, A. P.; LIEBSCH, D.; LINGNER, D. V.; LOMBARDI, J. A.; LUCAS, E.; LUZZI, J. dos R.; MAI, P.; MANIA, L. F.; MANTOVANI, W.; MARAGNI, A. G.; MARQUES, M. C. M.; MARQUEZ, G.; MARTINS, C.; MARTINS, L. do N.; MARTINS, P. L. S. S.; MAZZIERO, F. F. F.; MELO, C. de A.; MELO, M. M. F. de; MENDES, A. F.; MESACASA, L.; MORELLATO, L. P. C.; MORENO, V. de S.; MULLER, A.; MURAKAMI, M. M. da S.; CECCONELLO, E.; NARDY, C.; NERVO, M. H.; NEVES, B.; NOGUEIRA, M. G. C.; NONATO, F. R.; OLIVEIRA-FILHO, A. T. de; OLIVEIRA, C. P. L. de; OVERBECK, G. E.; MARCUSSO, G. M.; PACIENCIA, M. L. B.; PADILHA, P.; PADILHA, P. T.; PEREIRA, A. C. A.; PEREIRA, L. C.; PEREIRA, R. A. S.; PINCHEIRA-ULBRICH, J.; PIRES, J. S. R.; PIZO, M. A.; PÔRTO, K. C.; RATTIS, L.; REIS, J. R. de M.; REIS, S. G. dos; ROCHA-PESSÔA, T. C.; ROCHA, C. F. D.; ROCHA, F. S.; RODRIGUES, A. R. P.; RODRIGUES, R. R.; ROGALSKI, J. M.; ROSANELLI, R. L.; ROSSADO, A.; ROSSATTO, D. R.; ROTHER, D. C.; RUIZ-MIRANDA, C. R.; SAITER, F. Z.; SAMPAIO, M. B.; SANTANA, L. D.; SANTOS, J. S. dos; SARTORELLO, R.; SAZIMA, M.; SCHMITT, J. L.; SCHNEIDER, G.; SCHROEDER, B. G.; SEVEGNANI, L.; SILVA JÚNIOR, V. O.; SILVA, F. R. da; SILVA, M. J. da; SILVA, M. P. P.; SILVA, R. G.; SILVA, S. M.; SINGER, R. B.; SIQUEIRA, G.; SOARES, L. E.; SOUSA, H. C. de; SPIELMANN, A.; TONETTI, V. R.; TONIATO, M. T. Z.; ULGUIM, P. S. B.; VAN DEN BERG, C.; VAN DEN BERG, E.; VARASSIN, I. G.; SILVA, I. B. V. da; VIBRANS, A. C.; WAECHTER, J. L.; WEISSENBERG, E. W.; WINDISCH, P. G.; WOLOWSKI, M.; YAÑEZ, A.; YOSHIKAWA, V. N.; ZANDONÁ, L. R.; ZANELLA, C. M.; ZANIN, E. M.; ZAPPI, D. C.; ZIPPARRO, V. B.; ZORZANELLI, J. P. F.; RIBEIRO, M. C.. |
| Epiphytes are hyper?diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non?vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Filicophyta; Lejeuneaceae; Lycopodiophyta; Magnoliophyta; Floresta Atlântica; Epífita; Atlantic Forest; Biodiversity data set; Biodiversity hotspot; Epiphyte; Phorophyte; Tropical forest; Bromeliaceae; Orchidaceae; Floresta Tropical; Marchantiophyta; Polypodiaceae; Tracheophyta. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105839 |
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| Martins,Lucas Pereira; Araujo Junior,Elias da Costa; Martins,Ananda Regina Pereira; Colins,Mairla Santos; Almeida,Gabriela Cristina Fonseca; Azevedo,Gisele Garcia. |
| Abstract Species inventories are important tools to evaluate biodiversity losses and contribute to the conservation of endangered areas. The Amazon and Cerrado are the largest Brazilian biomes and represent some of the most threatened regions of the country. Due to its location between these biomes, the state of Maranhão, Northeast Brazil, possesses a great variety of habitats and a high local diversity. Nonetheless, few faunistic inventories of diversified groups have been performed in the state. In the specific case of butterflies, a well-known biological indicator, no inventories have been published in the past years. This study aimed to expand the knowledge on the composition of butterflies in Amazon and Cerrado remnants of Maranhão. Butterflies were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tropical forest; Diversity; Lepidoptera; Neotropical region; Savanna. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300303 |
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| BENCKE,CINARA S.C.; MORELLATO,L. PATRÍCIA C.. |
| Este trabalho compara dois métodos de avaliação fenológica e sua representação gráfica. O estudo foi desenvolvido no Núcleo Picinguaba, Ubatuba, Estado de São Paulo (23º22' S e 44º48' W), em três formações florestais: floresta de restinga, floresta de planície e floresta de encosta. A floração, frutificação, queda de folhas e brotamento foram estimados mensalmente para cada indivíduo arbóreo, durante 18 meses. Foram comparados: i) percentual de intensidade de Fournier ou índice de intensidade: escala intervalar de cinco categorias de 0 a 4, com intervalo de 25% entre classes; e ii) índice de atividade ou porcentagem de indivíduos. O índice de atividade e o percentual de intensidade de Fournier forneceram informações distintas e complementares, facilitando... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic forest; Phenology; Methods; Tropical forest; Synchrony. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300003 |
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| CAVALCANTE,A. DE M. B.; SOARES,J. J.; FIGUEIREDO,M. A.. |
| The Baturité Mountain Range, located in the State of Ceará (BRA), displays on its highest levels a vegetation viewed as a disjunction from the Atlantic Forest in the East of Brazil. Among the various attributes associated with this vegetation, the abundance of water resources and a high biodiversity have a more outstanding relevance. However, in view of the current accelerated deforestation process, those attributes may be threatened in a near future. Therefore, the present work is a comparative study with its focus on vegetal community organization (tree sinusiae) and the floristic similarity and the phytodiversity of two areas in different successive stages, preserved and deforested 24 years ago. The aim of that intent was to obtain information that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tropical forest; Phytosociology; Vegetation. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400003 |
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| Bourotte,Christine; Forti,Maria Cristina; Lucas,Yves; Melfi,Adolpho J.. |
| Studies about pollution by Polycyclic Aromatic Hydrocarbons (PAHs) in tropical soils and Brazil are scarce. A study was performed to examine the PAHs composition, concentrations and sources in red-yellow Oxisols of remnant Atlantic Forest of the São Paulo State. Sampling areas were located in an urban site (PEFI) and in a natural one (CUNHA).The granulometric composition, pH, organic matter content and mineralogical composition were determined in samples of superficial soils. The sum of PAHs (ΣHPAs) was 4.5 times higher in the urban area than in the natural one. Acenaphthylene, acenaphthene, fluorene, phenanthrene and fluoranthene have been detected in the soils of both areas and presented similar concentrations. Acenaphthene and fluorene were the most... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Polycyclic aromatic hydrocarbons; PAHs; Tropical forest; Tropical soils; Urban soils. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000100013 |
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| SANTOS,Renato Ferreira dos; SOTÃO,Helen Maria Pontes; MONTEIRO,Josiane Santana; GUSMÃO,Luís Fernando Pascholati; GUTIÉRREZ,Antonio Hernández. |
| ABSTRACT The aim of this study was to investigate the species of conidial fungi associated with leaf litter of Cedrela odorata (Meliaceae), an endangered red cedar species typical of Amazonian terra-firme forests. Conidial fungi were sampled around C. odorata individuals in three forest areas in the municipality of Belém (Pará State, Brazil). A total of 104 species were identified, with 53 new records for the state of Pará, 46 first records for the Brazilian Amazon, including new records for Brazil (Cordana abramovii), for South America (Acarocybiopsis cubitaensis, Xylocladium claviforme) and for the Americas (Dactylaria biguttulata). A review of species of conidial fungi reported on C. odorata is provided, indicating its distribution in Brazil. For each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascomycota; Hyphomycetes; Meliaceae; Tropical forest. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000300230 |
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| Nettesheim,Felipe Cito; Conto,Tiago de; Pereira,Marcos Gervasio; Machado,Deivid Lopes. |
| Natural processes that determine soil and plant litter properties are controlled by multiple factors. However, little attention has been given to distinguishing the effects of environmental factors from the effects of spatial structure of the area on the distribution of soil and litter properties in tropical ecosystems covering heterogeneous topographies. The aim of this study was to assess patterns of soil and litter variation in a tropical area that intercepts different levels of solar radiation throughout the year since its topography has slopes predominantly facing opposing geographic directions. Soil data (pH, C, N, P, H+Al, Ca, Mg, K, Al, Na, sand, and silt) and plant litter data (N, K, Ca, P, and Mg) were gathered together with the geographic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tropical forest; Spatial factors; Environmental factors; Slope geographic orientation; Soil chemistry; Litter chemistry. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300750 |
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| Marques,Márcia S.; Sá,Nadja M.; Scotti,María R.. |
| Leguminous trees are being planted in order to establish restoration units in the Brazilian Atlantic forest ecosystem. The success of the establishment depends on the growth, productivity of plants and litter decomposition rates. The objective of this study was to investigate the decomposition of araribá (Centrolobium tomentosum Guill. Ex Benth) leaves, at two sites. Site 1 was an experimental plantation of the native species C. tomentosum, which was inoculated with rhizobia plus mycorrhizal fungi, and Site 2 was a eucalyptus (Eucalyptus grandis W. Hill ex Maiden) forest. The leaf litter of C. tomentosum was incubated for 120, 240 and 360 days in both sites. The decomposition rate and dynamic of mineralization of the organic matter and the nutrients K, Mg,... |
| Tipo: Journal article |
Palavras-chave: Decomposition; Eucalyptus sp.; Microbial colonization; Tropical forest; Soil fertility. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072003000100008 |
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| Siqueira,Carla C.; Vrcibradic,Davor; Almeida-Gomes,Mauricio; Borges-Junior,Vitor N. T.; Almeida-Santos,Patrícia; Almeida-Santos,Marlon; Ariani,Cristina V.; Guedes,Diego M.; Goyannes-Araújo,Pablo; Dorigo,Thiago A.; Van Sluys,Monique; Rocha,Carlos F. D.. |
| Data on species composition, richness, and density are presented for the leaf litter frog assemblage of an area of Atlantic Rainforest at the Serra dos Órgãos mountain range, in the state of Rio de Janeiro, southeastern Brazil. Three sampling methods were used: plot sampling, visual encounter surveys, and pitfall traps. The local assemblage of leaf litter frogs was composed of 16 species, with the direct-developing species, Euparkerella brasiliensis (Parker, 1926), being the most abundant. The estimated density of the local leaf litter frog assemblage based on plot sampling was 17.1 ind/100 m² and the estimated overall leaf litter frog mass was 684.2 g/ha. The estimated density of leaf litter frogs at the present study is the highest currently reported for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibian survey; Relative abundance; Tropical forest. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100015 |
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| Bréchet, Laëtitia; Courtois, Elodie A.; Saint-germain, Thomas; Janssens, Ivan A.; Asensio, Dolores; Ramirez-rojas, Irene; Soong, Jennifer L.; Van Langenhove, Leandro; Verbruggen, Erik; Stahl, Clément. |
| Tropical soils are a major contributor to the balance of greenhouse gas (GHG) fluxes in the atmosphere. Models of tropical GHG fluxes predict that both the frequency of drought events and changes in atmospheric deposition of nitrogen (N) will significantly affect dynamics of soil carbon dioxide (CO2) and methane (CH4) production and consumption. In this study, we examined the combined effect of a reduction in precipitation and an increase in nutrient availability on soil CO2 and CH4 fluxes in a primary French Guiana tropical forest. Drought conditions were simulated by intercepting precipitation falling through the forest canopy with tarpaulin roofs. Nutrient availability was manipulated through application of granular N and/or phosphorus (P) fertilizer to... |
| Tipo: Text |
Palavras-chave: Carbon dioxide; Drought; Fertilization; Methane; Nitrogen; Phosphorus; Soil GHG fluxes; Tropical forest. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00595/70694/68903.pdf |
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| Ribeiro,Daniele Guedes; Silvestre,Rogerio; Garcete-Barrett,Bolívar R.. |
| ABSTRACT Surveying the diversity of stinging wasps (Hymenoptera: Aculeata) provides an important information base to assist in biodiversity conservation and the management of forest reserves, as wasps depend on and maintain the population balance of several other groups of insects. In accordance, this paper presents an altitudinal survey of wasps (Hymenoptera, Aculeata, Vespidae) in Itatiaia National Park, Brazil, which is a protected area covered by Atlantic Forest in a mountainous landscape, with altitudes ranging between 540 and 2791 metres above sea level. Six altitudinal zones were sampled with entomological net, and the abundance and diversity of the species were indicated by zones. Field sampling took 288 h of discontinuous activity, which was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity hotspot; Eumeninae; Polistinae; Richness; Tropical forest. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000100022 |
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| Registros recuperados: 73 | |
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