Forests Amazon
Mostrando 25-36 de 122 artigos, teses e dissertações.
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25. Climatically-mediated landcover change: impacts on Brazilian territory
ABSTRACT In the face of climate change threats, governments are drawing attention to policies for mitigating its effects on biodiversity. However, the lack of distribution data makes predictions at species level a difficult task, mainly in regions of higher biodiversity. To overcome this problem, we use native landcover as a surrogate biodiversity, because i
An. Acad. Bras. Ciênc.. Publicado em: 22/05/2017
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26. A Synopsis of Sloanea (Elaeocarpaceae) in the Neotropical extra-Amazonian Region
ABSTRACT The genus Sloanea is comprised of 150 species, of which about 50 occur in Brazil among several vegetation types but mainly the Amazon and Atlantic forests. The present work provides a synopsis of the Neotropical species of Sloanea in the extra-Amazonian region based on a recent revision of the genus. In general, morphologically Sloanea comprises lar
Acta Bot. Bras.. Publicado em: 04/07/2016
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27. Isotopic variation among Amazonian floodplain woody plants and implications for food-web research
Isotopic variation within food sources adds uncertainty to models intended to reconstruct trophic pathways. Understanding this variation is pivotal for planning sampling protocols for food-web research. This study investigates natural variation in C and N stable isotopes among plant species in two western Amazon flooded forests with contrasting watershed bio
Biota Neotrop.. Publicado em: 14/06/2016
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28. Seasonality of reproduction of epiphytic bryophytes in flooded forests from the Caxiuanã National Forest, Eastern Amazon
Este trabalho teve como objetivo conhecer a biologia reprodutiva da brioflora epífita de forófitos de Virola surinamensis (Rol. ex. Rottb.) Warb. na várzea e igapó na Floresta Nacional de Caxiuanã, para responder à seguinte pergunta: O período de reprodução das espé cies de briófitas é influenciado pelo ambiente devido a sazonalidade climática p
An. Acad. Bras. Ciênc.. Publicado em: 13/05/2016
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29. Pleurostachys (Cyperaceae): nomenclatural notes, geographical distribution and conservation status
Abstract Pleurostachys Brongn. is a Neotropical genus of Cyperaceae closely related to Rhynchospora Vahl. It is found in the Atlantic and Amazon Forests from northern South America to southern Brazil and most of the species grow in the humid and shady understory. Fourteen species are confirmed, 11 of them are endemic to the Brazilian Atlantic Forest and six
Rodriguésia. Publicado em: 2015-06
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30. Xyridaceae of Viruá National Park, Roraima state, Brazil
Abstract A taxonomic treatment of the Xyridaceae in the Viruá National Park is presented. Located in Roraima state, northern Brazil, the park comprises a mosaic of lowland vegetation types, including forests, wetlands, and one of the largest continuous areas of campinarana in the Brazilian Amazon Basin. Xyridaceae are represented in the park by 20 species i
Rodriguésia. Publicado em: 2015-06
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31. Hypolytrum (Cyperaceae): taxonomic and nomenclatural notes, geographical distribution and conservation status of Neotropical species
Abstract (Hypolytrum (Cyperaceae): taxonomic and nomenclatural notes, geographical distribution and conservation status of Neotropical species.) Hypolytrum (Mapanioideae) is a medium-size and Pantropical genus of Cyperaceae, closely related to Mapania, Principina, and Scirpodendron. In the Neotropics, it is found from southern Mexico to southern Brazil where
Rodriguésia. Publicado em: 2015-06
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32. Richness, breeding environments and calling activity of the anurofauna of the lower moa river forest, state of Acre, Brazil
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
Zoologia (Curitiba). Publicado em: 2015-04
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33. In vitro activity of Amazon plant extracts against Enterococcus faecalis
Previous studies analyzing 2,200 plant extracts indicated anti-enterococcal activity in 25 extracts obtained from Brazilian forests' plants. In the present study, these extracts were subjected to microdilution broth assay (MDBA) and disk diffusion assay (DDA) using planktonic Enterococcus faecalis ATCC® 29212TM and were submitted to phytochemical analysis i
Braz. J. Microbiol.. Publicado em: 2014-09
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34. Bird diversity in the Serra do Aracá region, northwestern Brazilian Amazon: preliminary check-list with considerations on biogeography and conservation
We inventoried the birds from Serra do Aracá region, state of Amazonas. The region encompasses a high diversity of vegetation types, including white sand forests and campinas, terra firme and flooded forests, montane forests and tepuis. We recorded 416 bird taxa in 69 families through captures with mist nets, tape recording of bird voices, and collection of
Zoologia (Curitiba). Publicado em: 2014-08
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35. High occurrence of Calodium hepaticum (syn. Capillaria hepatica) spurious infection in a village in the Atlantic Forest of southern Brazil
Calodium hepaticum (syn. Capillaria hepatica) is a nematode of the Capillariidae family that infects rodents and other mammals. In Brazil, human spurious infections of C. hepaticum have been detected in indigenous or rural communities from the Amazon Basin, but not in the southern states of the country. Here, we report the highest occurrence (13.5% of 37 re
Mem. Inst. Oswaldo Cruz. Publicado em: 04/03/2014
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36. Patrones de diversidad y composición florística de parcelas de evaluación permanente en la selva central de Perú
A forest survey in Satipo Province, Region of Junin, from 990 to 1050 m.a.s.l. revealed the presence of 775 trees > 10 cm dbh belonging to 102 species, 67 genera and 37 families. The study showed the most diverse families as being Moraceae, Lauraceae and Leguminosae, and the most diverse genera as Ficus, Ocotea, Miconia and Inga. A comparative analysis of 1
Rodriguésia. Publicado em: 2014-03