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A 15-year post evaluation of the fire effects on ant community in an area of Amazonian forest Rev. Bras. entomol.
Santos,Jean C.; Delabie,Jacques H. C.; Fernandes,G. Wilson.
Fire represents an important disturbance to ant communities in areas of fire regime. Otherwise, little is known about the effects of fire on ant communities in areas of non-fire regimes, such as in the Amazonian region. We evaluated the long-term effect of fire on ant species richness in a rain forest (Bacaba Plateau) burned 15-years ago and compare our data with the data of primary unburned forest. A total of 85 ant species distributed in 21 genera and 14 tribes were collected; among them, 72 and 44 species were found on the litter and vegetation, respectively. The fire damaged forest studied supports an intermediate richness of ants when compared to a primary unburned rain forest in the same region. A comparative analysis of ant species richness showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Brazil; Community structure; Rain forest; Species richness.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262008000100015
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A AMAZONIA E O MERCADO DE CARBONO AgEcon
Lamarca Junior, Mariano Rua; Chalita, Marie Anne Najm; Godoy, Amalia Maria Goldberg; Silva, Cesar Roberto Leite da.
A Amazônia tem um destacado papel na crise ambiental global uma vez que, no Brasil, há mais emissões de carbono por o desmatamento e queimadas do que pela queima de combustíveis de origem fóssil. Para discutir a problemática e a importância da inserção da Amazônia no mercado de carbono, parte-se dos processos de ocupação e uso dos recursos naturais da floresta e das contradições na formulação das políticas para a região. Com base nos conceitos de direitos de propriedade, direitos econômicos e rede social demonstra-se que a política atual de gestão e concessão da floresta pode também ancorar-se no mercado de carbono para agir diretamente sobre o caráter ilegal e clandestino das atividades que depredam a floresta e diminuir os conflitos existentes. Esta...
Tipo: Conference Paper or Presentation Palavras-chave: Amazônia; Mercado de carbono; Desenvolvimento sustentável; Amazon; Carbon market; Sustainable development; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/109111
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A comparative analysis of ALOS PALSAR L-band and RADARSAT-2 C-band data for land-cover classification in a tropical moist region. Repositório Alice
LI, G.; LU, D.; DUTRA, L.; BATISTELLA, M..
This paper explores the use of ALOS (Advanced Land Observing Satellite) PALSARL-band (Phased Array type L-band Synthetic Aperture Radar) and RADARSAT-2 C-band data for land-cover classification in a tropical moist region. Transformed divergence was used to identify potential textural images which were calculated with the gray-level co-occurrence matrix method. The standard deviation of selected textural images and correlation coefficients between them were then used to determine the best combination of texture images for land-cover classification. Classification results based on different scenarios with maximum likelihood classifier were compared. Based on the identified best scenarios, different classification algorithms ? maximum likelihood classifier,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: ALOS PALSAR; RADARSAT; Texture; Land-cover classification; Amazon.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/924819
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A description of mercury in fishes from the Madeira River Basin, Amazon, Brazil Acta Amazonica
Bastos,Wanderley Rodrigues; Rebelo,Mauro de Freitas; Fonseca,Márlon de Freitas; Almeida,Ronaldo de; Malm,Olaf.
Over the last 20 years several projects carried on the Madeira River basin in the Amazon produced a great amount data on total Hg concentration in different fish species. In this paper we discuss temporal trends in Hg contamination and its relation to body weight in some of those fishes, showing that even within similar groups, such as carnivorous and non-migratory fish, the interspecies variability in Hg accumulation is considerable.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Mercury; Biomagnification; Madeira River; Amazon.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000300006
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A high-­resolution monitoring network investigating stem growth of tropical forest trees. Repositório Alice
HOFHANSL, F.; ARAUJO, A. C. de; DeLUCIA, E..
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Floresta Tropical; Amazônia; Sensoriamento remoto; Carbono; Biosfera; Ecosistema; Florest; Amazon.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1042505
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A history of the biogeography of Amazonian fishes Neotropical Ichthyology
Dagosta,Fernando C. P.; Pinna,Mário C. C. de.
ABSTRACT The history of knowledge about Amazonian biogeography is as rich as its fish community, and a fascinating theme of study in itself. Several current paradigms and controversies about Amazonian fish biogeography are rooted in principles dating from the second half of the 18th to the first half of the 19th centuries. The present work establishes a relationship between current biogeographical ideas and their old predecessors, on the basis of a chronologically-oriented historical continuity analysis. The advent of evolutionary theory has not contributed significantly to a transformation of the knowledge on the biogeography of Amazonian fishes. On the other hand, the two main schools of biogeographical thought (dispersalist and vicariant) had major...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Biodiversity; Ichthyology; Neotropical; South America.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000300303
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A model for the importance of large arborescent palms in the dynamics of seasonally-dry amazonian forests Biota Neotropica
Salm,Rodolfo; Jalles-Filho,Euphly; Schuck-Paim,Cynthia.
In this study we propose a model that represents the importance of large arborescent palms in the dynamics of seasonally-dry Amazonian forests. Specifically, the model is aimed at guiding the investigation of the role of large arborescent palms on forest regeneration and succession. Following disturbance, the high level of luminosity reaching recently formed forest gaps favors the quick proliferation of shade-intolerant lianas that, by casting shade on the crowns of mature forest trees and increasing tree-fall probability, suppress forest succession. Due to their columnar architecture palm trees are, however, not severely affected by vines. As the palms grow, the canopy at the gaps becomes gradually higher and denser, progressively obstructing the passage...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Attalea maripa; Forest dynamics; Palm trees; Regeneration.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000300011
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A new species of Farlowella (Siluriformes: Loricariidae) of the F. nattereri species-group from the rio Xingu basin, Mato Grosso, Brazil, with comments on Farlowella jauruensis , a poorly-known species from the upper rio Paraguai basin Neotropical Ichthyology
Ballen,Gustavo A.; Pastana,Murilo N. L.; Peixoto,Luiz A. W..
ABSTRACT A new species of Farlowella is described from eighteen specimens collected in the upper rio Xingu basin, Mato Grosso State, Brazil. The new species is a member of the Farlowella nattereri species-group and can be distinguished from other members of the group, with exception of Farlowella jauruensis , by exhibiting a proportionally shorter snout. The new species is distinguished from F. jauruensis by differences on the cleithrum and plate morphology, by counts of pelvic and caudal-fin rays, and by the color pattern of the snout. The discovery of new lots of F. jauruensis , a species so far known only from the holotype, is also herein reported. This discovery represents a considerable expansion of the geographic distribution and of the number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Brazilian shield; Loricariinae; Neotropical fishes; Ostariophysi.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300215
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A new species of Graphomya Robineau-Desvoidy (Diptera, Muscidae) Zoologia
Couri,Márcia S.; Marques,Bianca.
Graphomya Robineau-Desvoidy is known from 12 neotropical species, only two of them with occurrence in Brazil. A new species from the Amazon is described and illustrated - G. amazonensis sp. nov. This is also the first record of the genus to the Amazon State, Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; G. amazonensis sp. nov.; Morphology; Taxonomy.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300037
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A new species of Gymnotus (Gymnotiformes: Gymnotidae) from the Fitzcarrald Arch of southeastern Peru Neotropical Ichthyology
Maxime,Emmanuel L.; Albert,James S..
Herein Gymnotus chaviro is described from the Alto Yuruá (upper rio Juruá) of southeastern Peru, where it is locally abundant in terra firme streams and floodplain oxbow lakes, and occurs sympatrically and syntopically with the type species of the genus G. carapo. The new species is diagnosed by a unique combination of morphometric, meristic, and osteological traits, and a characteristic color pattern in which the dark band-pairs are unbranched and incompletely separated, and the pale inter-bands rarely reach to the dorsal mid-line on the anterior half of the body, being crescent-shaped in abdominal area. Gymnotus chaviro is a member of the G. carapo species group, with which it shares the presence of two pores in the dorsolateral portion of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Biodiversity; Electric fish; Neotropical fish.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400004
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A new species of Kingsleya (Crustacea: Decapoda: Pseudothelphusidae) from the Xingu River and range extension for Kingsleya junki, freshwater crabs from the southern Amazon basin Rev. Bras. Zool.
Pedraza,Manuel; Martinelli-Filho,José Eduardo; Magalhães,Célio.
Kingsleya castrensis sp. nov., a pseudothelphusid crab is described and illustrated from the Xingu River, state of Pará, southern Amazon region, Brazil. The new species is characterized by the male first gonopod bearing a large, well-developed apical plate, with a broadly rounded, thick distal lobe. New records of Kingsleya junki Magalhães, 2003 extend the distribution of this species eastward to the Tocantins River basin, in the state of Pará, Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Brachyura; Kingsleyini; Neotropical region; Taxonomy.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100041
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A new species of Leptometopa Becker, 1903 (Diptera, Milichiidae) and an identification key for the neotropical species of the genus Pap. Avulsos de Zool. (São Paulo)
Mello,Ramon Luciano de; Rodrigues,Paula Fernanda Motta; Lamas,Carlos José Einicker.
The Milichiidae family includes species of small acalyptratae flies distributed into 19 genera, over all biogeographic regions. The genus Leptometopa Becker, 1903, positioned among the Madizinae, is distributed worldwide. The genus is composed of 19 species, of which three are recorded for the Neotropical region: L. halteralis (Coquillett, 1900), L. latipes (Meigen, 1830) and L. niveipennis (Strobl, 1898). Studying material collected in a cave of Amazonas State, Brazil, the authors found a new species of Leptometopa which is described and illustrated herein. The new species L. veracildae n. sp. represents the first record of the genus in South America. An identification key for all Neotropical species is also presented.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Madizinae; Microtomentum; Cave; Amazon; South America.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007002700001
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A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Madeira basin with remarkable intraspecific color variation Neotropical Ichthyology
Cramer,Christian Andreas; Py-Daniel,Lúcia Helena Rapp.
The rio Madeira is the largest white-water tributary of the Amazon, and is currently the river drainage with the highest fish species diversity in the world. A new species of Panaqolus was recognized from the middle Madeira and Mamoré rivers (Brazil) and from the Madre de Dios drainage (Peru) and it is described herein. This new species is readily distinguished from its congeners by the large number of white dots distributed all over the body and by its remarkable amplitude of color pattern variation, ranging from a pale, light brown, to dark brown and almost black background coloration. The new species closely resembles P. albomaculatus but has more and smaller dots on the body, a smaller orbital diameter (12.5-16.8% head length vs. 16.0-20.0%) and longer...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Catfish; Key of identification; Panaque; Peckoltia.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000300461
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A new species of Poptella (Characiformes: Characidae: Stethaprioninae) from the Rio Juma, Rio Madeira basin, Brazil Neotropical Ichthyology
Garcia-Ayala,James R.; Benine,Ricardo C..
ABSTRACT A new species of Poptella is described from the Rio Juma, a tributary of the lower Rio Aripuanã, Rio Madeira basin, Amazonas, Brazil. The new species is distinguished from all congeners, except P. brevispina, by having a lower number of scale rows between the lateral line and dorsal-fin origin (7 vs. 8-10). The new species can be readily distinguished from P. brevispina by the lower number of branched dorsal-fin rays (9 vs. 10). This is the first description of a new species of Poptella since the revisionary study of the Stethaprioninae, published 30 years ago.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Biodiversity; Freshwater fish; Stethaprionini; Taxonomy.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200202
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A new species of Telmatoscopus Eaton (Diptera, Psychodidae) from Brazil Biota Neotropica
Bravo,Freddy; Souza,Isys.
A new Brazilian species of Telmatoscopus Eaton (Diptera, Psychodidae) is described and illustrated. A key to males of Neotropical species of Telmatoscopus is provided.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diptera; Psychodidae; Amazon; New species; Brazil.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000100008
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A survey of the Anopheles Mosquitoes (Diptera: Culicidae) along the Acre And Purus Rivers, Amazon Basin, Brazil Acta Amazonica
ZIMMERMAN,Robert H; PAULINO,Francisco Xavier; ARRUDA,Mercia de.
From January 19 to February 25, 1997 an entomological survey of the seringais and larger towns along the Acre and Purus rivers was made as part of the project “Revisitando a Amazônia de Carlos Chagas; da Borracha a Biodiversidad”. Eleven anopheline species and 1285 specimens were collected landing on human baits. The four most abundant species were Anopheles albitarsis s.l. (n=778), A. darlingi (n=359), A. rangeli (n=69) and A. oswaldoi (n=60). A total of 252 larvae were collected of which 10 anopheline species were identified. The most abundant species collected were A. albitarsis s.l. (n=88), A. deaneorum (n=45) and A. triannulatus (n=40). The low numbers of Anopheles collected and the absence of the principal malaria vector A. darlingi at the seringais...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anopheles; Malaria; Amazon.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671999000100165
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A SUSTENTABILIDADE DAS RESERVAS EXTRATIVISTAS PELA PERSPECTIVA DA ECONOMIA ECOLÓGICA AgEcon
Cavalcanti, Francisco Carlos Da Silveira; Maciel, Raimundo Claudio Gomes; Mangabeira, Joao Alfredo De Carvalho; Reydon, Bastiaan Philip.
As Reservas Extrativistas (RESEX) são áreas de domínio público, com uso concedido às populações extrativistas tradicionais, cuja subsistência baseia-se no extrativismo e na agricultura de subsistência e na criação de animais de pequeno porte, e têm como objetivos básicos proteger os meios de vida e a cultura dessas populações, e assegurar o uso sustentável dos recursos naturais da unidade. Porém, o aumento da área para agropecuária dentro das reservas vem aumentando e, assim, o desmatamento. O presente estudo tem como objetivo promover uma reflexão sobre a regulamentação ambiental e suas conseqüências, bem como sobre a organização popular como instrumento capaz de deter o desmatamento na Amazônia. Neste sentido, as RESEX, resultado da luta política e...
Tipo: Conference Paper or Presentation Palavras-chave: Sustentabilidade; Reservas Extrativistas; Economia Ecológica; Amazônia; Regulamentação ambiental; Sustainability; Extractivist Reserves; Ecological Economics; Amazon; Environmental regulation; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/113395
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A synopsis of the Hydrometra (Hemiptera, Heteroptera, Hydrometridae) from the Amazon River floodplain, Brazil, with redescription of Hydrometra argentina Berg Rev. Bras. entomol.
Moreira,Felipe Ferraz Figueiredo; Ribeiro,José Ricardo Inacio; Nessimian,Jorge Luiz.
Hydrometra argentina Berg, 1879, H. caraiba Guérin-Méneville, 1857 and H. guianana Hungerford & Evans, 1934 are newly recorded in the Amazon River floodplain, Brazil. A redescription of H. argentina is also given, as the original description is incomplete. A key to the three known species occurring in this region is provided. Hydrometra argentina can be distinguished from H. caraiba and H. guianana by the body length smaller than 12.50 mm, anteoculus/postoculus ratio between 1.80 and 2.00, clypeus narrow and conical, metacetabulum with no circular pits, and projections on male abdominal sternite VI in the shape of simple spines. The other species can be distinguished mainly by the anteoculus/postoculus ratio and position of projections on male...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Aquatic insects; Gerromorpha; Neotropics; Taxonomy.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000100017
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Abundância, riqueza e diversidade de abelhas Euglossinae (Hymenoptera, Apidae) em florestas contínuas de terra firme na Amazônia Central, Brasil Zoologia
Oliveira,Marcio Luiz de; Campos,Lúcio Antônio de Oliveira.
The fauna of Euglossinae bees were studied in two areas of "terra firme" continuous forest in the Central Amazon. Brazil. During one year (september/1989-august/1990) the collections were done fortnightly, using traps with eight kinds of seents baits. The traps were placed in the understory and in the tree crowns. The continuous forest of "terra firme" near Manaus are among those with the highest speeies richness of Euglossinae in the Neotropics. The species richness was higher than that found in other studies carried out in Brazil also. One study area had higher species richness and abundance, while species diversity was higher in another one. The diversity was different significally between the two areas.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apidae; Euglossinae; Abundance; Amazon; Diversity.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300009
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AÇAÍ PULP DEMAND IN THE RETAIL MARKET OF BELÉM, STATE OF PARÁ Rev. Bras. Frutic.
SANTANA,ANTÔNIO CORDEIRO DE; SANTANA,ÁDINA LIMA DE; SANTANA,ÁDAMO LIMA DE.
ABSTRACT The aim of this work was to estimate the parameters associated to the demand for açaí pulp in the retail market of Belém. Multiple regression analysis was applied to identify the key variables that impact on product consumption and to estimate the price and income elasticities and cross demand. The econometric estimation method applied was the least squares to correct heteroscedastic variance problems. Results have shown that the demand for açaí pulp is price and income inelastic. Fish and cassava flour were confirmed as complementary products of strong influence on the decisions of consumers. Product quality, with regard to its association to Chagas disease, also revealed a strong influence on product choice for household consumption. Finally,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Açaí market; Demand elasticities; Food safety; Amazon.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000100501
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