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| Registros recuperados: 239 | |
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| Pessoa,José Dalton Cruz; Leeuwen,Johannes Van. |
| The kernel of the cutia nut (castanha-de-cutia, Couepia edulis (Prance) Prance) of the western Amazon, which is consumed by the local population, has traditionally been extracted from the nut with a machete, a dangerous procedure that only produces kernels cut in half. A shelling off machine prototype, which produces whole kernels without serious risks to its operator, is described and tested. The machine makes a circular cut in the central part of the fruit shell, perpendicular to its main axis. Three ways of conditioning the fruits before cutting were compared: (1) control; (2) oven drying immediately prior to cutting; (3) oven drying, followed by a 24-hour interval before cutting. The time needed to extract and separate the kernel from the endocarp and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Instrumentation; Nut; Kernel; Shelling; Extraction method; Amazon. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452006000200018 |
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| ABREU,NATÁLIA DO COUTO; BARBOSA,SUZANA MARQUES; GURGEL,ELY SIMONE CAJUEIRO; CARVALHO,WENDELL VILHENA DE. |
| ABSTRACT Garcinia madruno (Kunth) Hammel is a neotropical tree that naturally occurs in terra firme forests and is important as a source of income and medicine for Amazonian populations. This study describes and compares the morphoanatomical responses of plants under conditions of stress and normoxia. Young plants of Garcinia madruno were subjected to two water regimes: daily controlled irrigation and waterlogged for 84 days. Hypertrophic lenticels, adventitious roots and anatomical characteristics of the roots and leaves were evaluated on days 0, 21, 42, 63 and 84. There were no changes in leaf structure, but cracks and hypertrophic lenticels appeared on the stems, there was an increase in blackness of the roots and the plants formed adventitious roots to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Bacurizinho; Stress; Fruit; Histochemistry. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500201 |
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| Miranda,Daniele B.; Albuquerque,Saymon de; Turci,Luiz Carlos B.; Bernarde,Paulo S.. |
| In state of Acre, most anuran research has been carried out in areas of terra firme, whereas alluvial forests remain relatively unexplored. We document the richness, breeding environments and calling season of the anurans of the Lower Moa River in the Alto Juruá (state of Acre), a region considered to harbor high biodiversity. Sampling was conducted in two main areas with different forest typologies (Terra firme forest and Alluvial forest), totaling 256 ha. The diversity of anurans was analyzed using the Shannon-Wiener index, evenness and Berger - Parker dominance. The anurans were sampled from October 2008 to September 2009, using the following sampling methods: sampling at breeding sites, pitfall traps, time constrained visual search during the day... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Amphibia; Biodiversity; Terra firme forest; Alluvial forest. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200093 |
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| Agudelo,Antonio A.; Rafael,José A.. |
| ABSTRACT The number of studies on Neotropical mantises has been growing in recent years, and the systematics of Mantodea is now a dynamic field with noteworthy contributions. Several taxonomic revisions have been published recently. The taxonomy of Paraphotina Giglio-Tos, 1915 is reviewed as part of current studies on systematics of Neotropical Mantodea. Currently, Paraphotina contains four species from South America: P. caatingaensis (Menezes & Bravo, 2013) comb. nov., P. insolita (Rehn, 1941), P. occidentalis Lombardo, 1998 and P. reticulata (Saussure, 1871). Paraphotina venezuelana Beier, 1963 is a new junior synonym of P. insolita . Keys for the Paraphotina species are proposed. The distribution of Paraphotina species is apparently correlates with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Neotropics; Praying mantises; Taxonomy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000603004 |
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| 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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| Rodrigues,Gerson Moreira; Maschio,Gleomar Fabiano; Prudente,Ana Lúcia da Costa. |
| ABSTRACT We describe the diversity, natural history and structure of snake assemblages from Marajó Island, state of Pará, Brazil, after analyzing 439 specimens deposited in herpetological collections. We tested the hypothesis that snake assemblages from forest and open areas of Marajó Island are distinct with regard to their structure, composition and functional groups. To compare the snake composition of the forest and open areas of Marajó with other comparable assemblages in Brazil, Principal Coordinate Analysis and Clustering tests were performed. A total of 61 species of snakes was recorded for Marajó, with ten species cited for the first time for the study area (Atractus natans Hoogmoed & Prudente, 2003, A. schach (Boie, 1827), Dendrophidion... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Assemblage; Functional groups; Herpetofauna. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000100700 |
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| Bertani,Rogério; Cruz,Wanessa Ribeiro; Oliveira,Maria Ermelinda do Espírito Santo. |
| A new species of Masteria L. Koch, 1873 from Manaus, Brazil, Masteria manauara sp. nov., is herein described. The specimens were collected by hand or using litter bags in the leaf litter around Attalea attaleoides (Barb. Rodr.) palm trees. The new species resembles Masteria colombiensis Raven, 1981 by lacking paraembolic apophysis on male copulatory organs and having spiniform apophysis on the ventral metatarsus I. It differs in the tibial spur, made of two subdistal, spiniform and converging spurs. Females are unique in having two spermathecae with slender helicoidal stalks. Males and females have only six eyes, and are tiny, even when compared with other Masteria species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Attalea attaleoides; Leaf litter; Mygalomorphae; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400010 |
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| Lima-Gomes,Renata C.; Lima,Jô de Farias; Magalhães,Célio. |
| ABSTRACT The morphology of stomach ossicles of decapod crustaceans provides valuable information on their phylogeny and biology. We herein described ten new ossicles in the foreguts of two trichodactylid crabs, Sylviocarcinus pictus (H. Milne-Edwards, 1853) and Valdivia serrata White, 1847, in addition to previously described 38 ossicles, which are also recognized and listed. Five specimens each of S. pictus and V. serrata were selected for morphological analysis of gastric ossicles. The stomachs were obtained after removing the carapace, and they were fixed in 10% formalin for 24 hours. After this procedure, the stomachs were immersed in a solution of 10% Potassium Hydroxide (KOH) and heated to 100 °C during 60 minutes for tissue maceration. At this... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Anatomy; Foregut; Morphology; Neotropical; Stomach; Valdiviini. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100312 |
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| Bertani,Rogério; Fukushima,Caroline Sayuri; Nagahama,Roberto Hiroaki. |
| The monotypic diplurid Metriura Drolshagen & Bäckstam, 2009 is placed in synonymy with Fufius (Cyrtaucheniidae) syn. nov. since Metriura lacks two of three diplurid synapomorphies (elongate posterior lateral spinnerets and the widely separated posterior median spinnerets) and shares synapomorphies with both aporoptychine cyrtaucheniids (subquadrate maxilla and a longer than wider labium) and Fufius (recurved and broad fovea, the typical incrassate tibia I of the male, with the spur having a single short branch and an apical megaspine, the basally curved metatarsus I and provided with a ventral tubercle). The type species of Metriura, M. striatipes Drolshagen & Bäckstam, 2009 is considered valid, and due to the synonymy of Metriura with... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Amazon; Mygalomorphae; Synonymy; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000500016 |
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| Oliveira,Luiz Antonio de; Magalhães,Hélio Paracaima de. |
| Quantification of acidity tolerance in the laboratory may be the first step in rhizobial strain selection for the Amazon region. The present method evaluated rhizobia in Petri dishes with YMA medium at pH 6.5 (control) and 4.5, using scores of 1.0 (sensitive, "no visible" growth) to 4.0 (tolerant, maximum growth). Growth evaluations were done at 6, 9, 12, 15 and 18 day periods. This method permits preliminary selection of root nodule bacteria from Amazonian soils with statistical precision. Among the 31 rhizobia strains initially tested, the INPA strains 048, 078, and 671 presented scores of 4.0 at both pHs after 9 days of growth. Strain analyses using a less rigorous criterion (growth scores higher than 3.0) included in this highly tolerant group the INPA... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhizobia; Tolerance to pH; Amazon. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300004 |
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| Castellón,Eloy G.; Fé,Nelson F.; Buhrnheim,Paulo F.; Fé,Flavio A.. |
| A sandfly survey was carried out in 100 x 150 m patches of primary forest submitted to recent deforestation in order to determine its species composition 10-30 days after clearing. The following collecting methods were used: CDC traps whit black light; Malaise traps placed at 0.5, 1, 5 and 10m up from the the soil surface; Pennsylvania traps whit black light; Malaise traps, tree-base catches and human baits. A total of 2810 specimens of Lutzomyia França, 1924 and one species of Brumptomyia França & Parrot, 1921, were collected. In general, the predominant species were L. chagasi (Costa Lima, 1941) (25.9%), L. davisi (Root, 1934) (12.3%), L. ayrozai (Barretto & Coutinho, 1940) (9.32%) and L. ubiquitalis (Mangabeira, 1942), (6.93%). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psychodidae; Sandflies; Entomological list; Amazon. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200016 |
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| Registros recuperados: 239 | |
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