A5057350675- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Plant Diversity and Evolution
- Fern and Epiphyte Biology
- Species Distribution and Climate Change
- Growth and nutrition in plants
- Conservation, Biodiversity, and Resource Management
- Leaf Properties and Growth Measurement
- Fire effects on ecosystems
- Environmental Conservation and Management
- Botanical Research and Applications
- Plant and Fungal Species Descriptions
- History and Politics in Latin America
- Pharmacogenetics and Drug Metabolism
- Steroid Chemistry and Biochemistry
- Sexual Differentiation and Disorders
- Metabolism and Genetic Disorders
- Urban Green Space and Health
- Hormonal and reproductive studies
- Soil Management and Crop Yield
- Animal and Plant Science Education
- Economic and Environmental Valuation
- Bamboo properties and applications
- Pineapple and bromelain studies
- Plant Taxonomy and Phylogenetics
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
2012-2024
Conselho Nacional de Pesquisa e Pós-graduação em Direito
2023
University of Miami
1970
Biodiversity is declining globally, yet many biodiversity hotspots still lack comprehensive species conservation assessments. Using multiple International Union for Conservation of Nature (IUCN) Red List criteria to evaluate extinction risks and millions herbarium forest inventory records, we present automated assessments all tree the Atlantic Forest hotspot, including ~1100 heretofore unassessed species. About 65% 82% endemic are classified as threatened. We rediscovered five Extinct on...
Enzymic transformationof testosterone to the potent androgen, 5cr-dihydrotestosterone, has been shown by incubation of testosterone-4-W with microsomal preparations human neonatal foreskin.The activity was stimulated NADPH but not NADH, and reaction proceeded optimally at pH 5.6.Formation Sol-androstanediol from 5adihydrotestosterone also after longer incubation.Purified nuclear skin seemed possess little or no 5a-reductase activity, in contrast similar rat prostate.The 5areductase...
Abstract Recognizing the imperative to evaluate species recovery and conservation impact, in 2012 International Union for Conservation of Nature (IUCN) called development a “Green List Species” (now IUCN Green Status Species). A draft framework assessing species’ progress toward recovery, published 2018, proposed 2 separate but interlinked components: standardized method (i.e., measurement against benchmarks viability, functionality, preimpact distribution) determine current status (herein...
Abstract Rewilding has been an increasingly popular tool to restore plant–animal interactions and ecological processes impaired by defaunation. However, the reestablishment of such seldom assessed. We investigated restoration following reintroduction brown howler monkey ( Alouatta guariba ) a defaunated Atlantic forest site. expected between howlers dung beetles, which promote secondary seed dispersal. estimated number be restored provide baseline interaction richness that could restored....
We describe, discuss, and illustrate Vriesea serraourensis, a new species from the Chapada Diamantina in municipality of Barra da Estiva Ituaçu, Bahia, Brazil, here considered critically endangered species. The is morphologically related to V. bahiana but clearly differs it by its larger size, longer fewer leaves, inflorescence branches forming an internal angle 30o–45o with main axis, sepals yellow ovate, petals narrowly obovate, whitish-yellow towards base at apex, basal petal appendages...
Abstract The successful implementation of the Convention on Biological Diversity's post‐2020 Global Biodiversity Framework will rely effective translation targets from global to national level and increased engagement across diverse sectors society. Species conservation require policy support measures that can be applied a diversity taxonomic groups, link action outcome goals, both data sets account for context, which species threat abatement restoration (STAR) metric does. To test...
A new species of Krenakanthus, a member the bromelioid “Cryptanthoid complex”, is described based on plants discovered through collaborative citizen science. Krenakanthus ribeiranus and its only congener K. roseolilacinus are endemic to “João Pinto Center Biodiversity”, still poorly explored region with Campos Rupestres associated vegetation in Rio Doce Valley, eastern Minas Gerais state, Brazil. The unusual combination morphological characters ribeiranus, highlighted by plant delicacy...
The level of cytochrome P-450 and the activity taurochenodeoxycholate 6β-hydroxylase rat liver microsomes were determined after administration phenobarbital, cholestyramine, thyroxine chenodeoxycholate. Treatment with phenobarbital caused increases in both level, while other compounds decreases both. Quantitatively there was a lack parallelism between hydroxylase P-450, indicating that is not rate-limiting factor system. An extract prepared 1.0 M phosphate (pH 7.6) as previously described....
Glaziophyton Franch. is a monotypic bamboo genus (G. mirabile Franch.), narrowly endemic to the Campos de Altitude in state of Rio Janeiro, southeast Brazil. Five occurrence sites are known, but one considered locally extinct and, at two sites, species has not been recollected for several years. Due its restricted geographical range G. classified as threatened species. In this study we report new populations. These records might change conservation status and category extinction risk.
Two new species of Paepalanthus (Eriocaulaceae) from the Cerrado hotspot in central Brazil are described and illustrated. avacanoeiro Trovó & R. Silva-Oliveira sp. nov. occurs Chapada dos Veadeiros region, growing on quartzite rocky soils. The is similar to P. urbanianus, distinguished mainly by being a more robust with pilose patent leaves blackish base ciliated margin, its reproductive axis covered remotely disposed bracts acuminate apex, inflorescence fewer scapes. It currently known...
The Atlantic Forest is one of the most diverse and threatened phytogeographical domains in world. Despite that, it includes regions with poor floristic knowledge, even protected areas. Although importance areas conserving hotspot undisputed, necessary to recognise richness these propose effective conservation actions. In this sense, online databases have proved be a promising tool for compiling species lists relevant biodiversity information. This study based on list vascular plants "Parque...
The "Serra da Concórdia" is part of the Atlantic Forest phytogeographical domain in Brazilian state Rio de Janeiro and it has a predominant phytophysiognomy Semideciduous Seasonal Forest. This region underwent intense habitat loss fragmentation during 19 th century, due to coffee plantations later pastures. With decline these activities, areas were abandoned, triggering secondary succession. In 2002, "Parque Estadual Serra was established this preserve remaining forest fragments. updated...
Abstract The Flora of Espírito Santo presents three species Helieae (Gentianaceae), circumscribed in the genera Prepusa, with two species, and Senaea only one species. These poorly known are described illustrated here, had their diagnostic characters similarities other discussed. In addition, this paper provides an emended key for geographic distribution maps all Prepusa from Santo, additional comments on conservation status.
Arthrocereus grandiflorus sp. nov. is described on the basis of field surveys, macro- and micromorphological (pollen grains) data, analysis literature. The new species endemic to Brazilian Cerrado its two subpopulations were found in municipality Diamantina, Minas Gerais State. Comments morphological affinities with related taxa, geographical distribution, phenology, habitat, conservation status, original photographs living specimens are provided. In terms conservation, it was assessed...