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A new species of Alphonsea (Annonaceae) from Peninsular Malaysia Naturalis
Turner, I.M.; Utteridge, T.M.A..
Alphonsea rugosa sp. nov. is described from eastern Peninsular Malaysia. It is similar to Alphonsea elliptica but has fruits that are dry wrinkled and glabrous rather than smooth and tomentose. A conservation assessment of Vulnerable based on collections from four locations is made.
Tipo: Article / Letter to the editor Palavras-chave: IUCN; Malay Peninsula; Malesia; South-East Asia; Taxonomy; Tropical forest.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578384
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A new world natural vegetation map for global change studies Anais da ABC (AABC)
Lapola,David M.; Oyama,Marcos D.; Nobre,Carlos A.; Sampaio,Gilvan.
We developed a new world natural vegetation map at 1 degree horizontal resolution for use in global climate models. We used the Dorman and Sellers vegetation classification with inclusion of a new biome: tropical seasonal forest, which refers to both deciduous and semi-deciduous tropical forests. SSiB biogeophysical parameters values for this new biome type are presented. Under this new vegetation classification we obtained a consensus map between two global natural vegetation maps widely used in climate studies. We found that these two maps assign different biomes in ca. 1/3 of the continental grid points. To obtain a new global natural vegetation map, non-consensus areas were filled according to regional consensus based on more than 100 regional maps...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural vegetation; Tropical forest; Biome; Phytogeography; Biogeophysical parameters; Vegetation map.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200017
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Ant species distribution along a topographic gradient in a "terra-firme" forest reserve in Central Amazonia. Repositório Alice
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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Ant species distribution along a topographic gradient in a "terra-firme" forest reserve in Central Amazonia PAB
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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Are Brazil nut populations threatened by fruit harvest? Repositório Alice
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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Atlantic epiphyres: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest. Repositório Alice
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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Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling Acta Amazonica
Ducey,Mark Jonathan; Zarin,Daniel Jacob; Vasconcelos,Steel Silva; Araújo,Maristela Machado.
Forest regrowth occupies an extensive and increasing area in the Amazon basin, but accurate assessment of the impact of regrowth on carbon and nutrient cycles has been hampered by a paucity of available allometric equations. We develop pooled and species-specific equations for total aboveground biomass for a study site in the eastern Amazon that had been abandoned for 15 years. Field work was conducted using randomized branch sampling, a rapid technique that has seen little use in tropical forests. High consistency of sample paths in randomized branch sampling, as measured by the standard error of individual paths (14%), suggests the method may provide substantial efficiencies when compared to traditional procedures. The best fitting equations in this...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometry; Allometric equations; Secondary growth; Tropical forest.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672009000200013
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Butterflies of Amazon and Cerrado remnants of Maranhão, Northeast Brazil Biota Neotropica
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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Comparação de dois métodos de avaliação da fenologia de plantas, sua interpretação e representação Rev. Bras. Bot.
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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Comparative phytosociology of tree sinusiae between contiguous forests in different stages of succession BJB
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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Comparison of Polycyclic Aromatic Hydrocarbon (PAHs) concentrations in urban and natural forest soils in the Atlantic Forest (São Paulo State) Anais da ABC (AABC)
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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Conidial fungi associated with leaf litter of red cedar (Cedrela odorata) in Belém, Pará (eastern Brazilian Amazon) Acta Amazonica
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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Contribution of Topography and Incident Solar Radiation to Variation of Soil and Plant Litter at an Area with Heterogeneous Terrain Rev. Bras. Ciênc. Solo
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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Crescimento e produção de uma florestal tropical da Amazônia brasileira treze anos após a exploração. Repositório Alice
SILVA, J. N. M.; CARVALHO, J. O. P. de; LOPES, J. do C. A.; ALMEIDA, B. F. de; COSTA, D. H. M.; OLIVEIRA, L. C. de; VANCLAY, J. K.; SKOVSGAARD, J. P..
1999
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Floresta tropical; Crescimento; Produção de madeira; Dendrometria; Floresta Nacional do Tapajós; Santarém; Pará; Amazônia; Brasil; Tropical forest; Growth; Wood production; Forest mensuration.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/handle/doc/394987
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Crescimento y dinamica de un bosque tropical primario en la region amazonica, Brasil. Repositório Alice
GOMIDE, G. L. A.; SILVA, J. N. M.; SANQUETTA, C. R..
1999
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Floresta tropical; Sucessão ecológica; Crescimento; Mortalidade; Índice de crescimento; Dendrometria; Inventário florestal; Amazônia; Brasil; Tropical forest; Ecologial sucession; Growth; Mortality; Growth rate; Forest mensuration; Forest inventories.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/handle/doc/394989
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DECOMPOSITION, DYNAMIC OF INORGANIC ELEMENTS AND MICROBIAL COLONIZATION OF ARARIBÁ (Centrolobium tomentosum Guill. ex Benth) LEAVES ON LATOSOLS OF BRAZILIAN ATLANTIC FOREST Agricultura Técnica
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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Density and richness of leaf litter frogs (Amphibia: Anura) of an Atlantic Rainforest area in the Serra dos Órgãos, Rio de Janeiro State, Brazil Rev. Bras. Zool.
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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Disentangling Drought and Nutrient Effects on Soil Carbon Dioxide and Methane Fluxes in a Tropical Forest ArchiMer
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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Diversity of bryophytes in priority areas for conservation in the Atlantic forest of northeast Brazil Acta Botanica
Silva,Mércia Patrícia Pereira; Pôrto,Kátia Cavalcanti.
The northeastern Brazilian Atlantic forest is the region with the greatest diversity of bryophytes in the country. However, knowledge about bryophytes is irregularly distributed among Brazilian regions. Therefore, we aimed to contribute to knowledge about bryophytes on a regional scale in the northeastern Atlantic forest, to identify the centers of bryophyte diversity in that region, and to reiterate the importance and identify locations for which new protected areas should be created. We built a database of bryophytes in 23 locations of the region, based on a literature review and new floristic inventories. To identify the locations of greatest relevance to bryophyte conservation, we considered 1) total and endemic species richness, 2) phylogenetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation units; Liverwort; Moss; Richness; Tropical forest.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000100016
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Diversity of wasps (Hymenoptera: Aculeata: Vespidae) along an altitudinal gradient of Atlantic Forest in Itatiaia National Park, Brazil Rev. Bras. entomol.
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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