Avaliação do risco de extinção das Urticineae das restingas do estado do Rio de Janeiro
Rodriguésia, 2014 Foram realizados o georreferenciamento e as análises de avaliação de risco de extinção seguindo os critérios e categorias da IUCN para 32 espécies de Urticineae (Cannabaceae, Ulmaceae, Urticaceae e Moraceae) ocorrentes nas restingas do estado do Rio de ...
Leandro Cardoso Pederneiras +3 more
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Pessoine and spinosine, two catecholic berbines from Annona spinescens [PDF]
, 1996 The trunk bark and roots of #Annona spinescens$ have been investigated for their alkaloid content. Two new berbine alkaloids, pessoine and spinosine, have been isolated from the bark, and their structures were elucidated by spectroscopic methods.
Cavé, A. +4 more
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Incidence of Extra-Floral Nectaries and their Effect on the Growth and Survival of Lowland Tropical Rain Forest Trees [PDF]
, 2013 Received the best poster in Organismal Biology award at the NMS Undergraduate Research ForumMutualistic relationships between organisms have long captivated biologists, and extra-floral nectaries (EFNs), or nectar-producing glands, found on many plants ...
Andrew, Muehleisen
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Conservação das florestas do projeto de assentamento Benfica, sudeste da Amazônia [PDF]
, 2013 In this study we analyze the floristic and structure of forest remnants in Benfica Settlement Project located in the municipality of Itupiranga, in southeastern Amazon.
Coelho, R.D.R. +2 more
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Determining the annual periodicity of growth rings in seven tree species of a tropical moist forest in Santa Cruz, Bolivia [PDF]
, 2012 To determine the annual periodicity of growth rings in seven tree species from a tropical moist forest in Santa Cruz, Bolivia, a fire scar was used as a marker point to verify the annual nature of tree rings.
Lopez, L. +2 more
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Distribution of sex forms in the phanerogamic flora [PDF]
, 2007 In the plant kingdom, particularly in the phanerogamic flora, hermaphroditism is by far the most common, yet the number of other sex forms is not negligible.
Yampolsky, Cecil, Yampolsky, Helene
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Diversité biologique tropicale et innovation thérapeutique : les recherches menées par l'ORSTOM [PDF]
, 1993 Les organismes vivants élaborent des molécules dont la complexité dépasse l'imagination des chimistes. Leurs complexités chimiques vont de pair avec leurs remarquables propriétés biologiques.
Bourdy, Geneviève +5 more
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Natural Compounds and Extracts from Mexican Medicinal Plants with Anti-Leishmanial Activity: An Update [PDF]
, 2018 Leishmaniasis is considered an emerging, uncontrolled disease, and is endemic in 98 countries. Annually, about 2 million cases of cutaneous and 500,000 cases of visceral type leishmaniasis are recorded, and 60,000 persons die from the disease. In Mexico,
Jiménez-Arellanes, María Adelina +1 more
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Monitoreo de la calidad del agua y caracterización de los bosques de la cuenca del Río Carbón [PDF]
, 2011 Proyecto de Investigación Instituto Tecnológico de Costa Rica. Vicerrectoría de Investigación y Extensión (VIE). Escuela de Ingeniería Forestal, Asociación Corredor Biólogico Talamanca Caribe, 2011La cuenca del Río Carbón se ubica hacia el Sur del ...
Calvo-Alvarado, Julio +1 more
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The impact of FSC certification on timber tree regeneration and floristic composition in Honduran community forests [PDF]
, 2011 Forest certification has been put forward as a means to improve the sustainability of forest management in the tropical countries, where traditional environmental regulation has been inefficient in controlling forest degradation and deforestation.
Bieri, Mari
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