From widespread to microendemic: Molecular and acoustic analyses show that Ischnocnema guentheri (Amphibia: Brachycephalidae) is endemic to Rio de Janeiro, Brazil

Many species of tropical amphibians are restricted to very small ranges, and this microendemism coupled with ongoing habitat loss and susceptibility to emerging pathogens imperils the long-term persistence of these species. Incomplete taxonomic and distributional knowledge may obscure conservation assessment, particularly in putatively widespread species that are typically considered to be of Least Concern in Red List assessments, but that in fact may constitute complexes of partly microendemic species. Such is the case in the Steindachner's Robber Frog, Ischnocnema guentheri which, together with the recently recognized Ischnocnema henselii, is thought to occupy most of the Brazilian Atlantic Forest. To test whether these taxa may constitute a species complex of range-restricted and thus potentially threatened species, we analyzed 160 samples of I. guentheri and/or I. henselii for two molecular markers, 16S rRNA (16S) and recombination activation gene 1 (RAG1). To verify the monophyly of the complex, closely related species were also included in the 16S analysis. Congruent evidence from the molecular data and from analyses of advertisement calls support the existence of six distinct species within the complex: I. guentheri and I. henselii as well as four candidate new species. The lineages are distributed as a mosaic in the Atlantic Forest and are sympatric at some localities without indication of admixture. Their phylogeographical pattern partially agrees with paleo-models for the Atlantic Forest, but also suggests the existence of micro-refugia in less stable areas. I. guentheri, previously considered to be widespread, was found only in its type locality, a reserve within the urban area of Rio de Janeiro city. Although none of the species studied appears highly threatened with extinction, we recommend their IUCN threat status to be re-evaluated carefully for the next comprehensive update of the Red List of Brazil's amphibians. © 2013 Springer Science+Business Media Dordrecht.

Teores de iodo em dietas secas e úmidas para gatos adultos comercializadas na cidade do Rio de Janeiro, Brasil

Were analyzed 29 samples, 16 wet and 13 dry cat food of different flavors. The iodine levels ranged from 2.7 to 3.4 (average 2.95 mg/kg/MS) in dry food and 2.9 to 4.0 (average 3.4 mg/kg/MS) in the wet food. Eight samples (27.6%) specified on the package the assurance level (maximum) of iodine, with a dry (2.0 mg/kg/diet) and seven wet (0.04 mg/kg/diet). All non-compliant, because the values were higher than declared. Cats fed commercial diets consume proportionally more iodine in wet food than cats fed dry diets, but both with high levels of iodine. All samples analyzed were above the amounts stated on the labels. Accordingly, the wet and dry commercial food for cats show no reliable values with those reported, resulting in a possible excessive intake of this trace element for animals in question.

Morfometria da bacia hidrográfica do rio Bobo no Estado de Nariño, Colômbia

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A prática da reportagem radiofônica na Emissora Continental do Rio de Janeiro

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Teatro a vapor de Arthur Azevedo: um olhar satírico sobre o Rio de Janeiro do início do século XX

Pós-graduação em Estudos Literários - FCLAR

Uma Paris dos trópicos?: perspectivas da europeização do Rio de Janeiro na primeira metade do Oitocentos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A Gazeta de Notícias do Rio de Janeiro (1896-7) e La Guerra del fin del mundo (1981) de Mario Vargas Llosa: uma análise comparativa entre o discurso republicano e a (re)criação literária

Pós-graduação em Letras - FCLAS

Bilac e a reurbanização do Rio de Janeiro: estudo da crônica dominical da Gazeta de Notícias (1897-1908)

Pós-graduação em Letras - FCLAS

O Rio de Janeiro das escolas de samba: lugar, identidade e imagem urbana

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Subúrbio, morro e terreiro: a geografia da prática cultural dos negros em meio ao processo de urbanização da cidade do Rio de Janeiro entre 1890 e 1940

Pós-graduação em Geografia - IGCE

Planejamento e impasses na implementação do Trem de Alta Velocidade (TAV) entre Campinas/SP, São Paulo/SP e Rio de Janeiro/RJ

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Trabalhadores de Educação Física no segmento fitness: um estudo da precarização do trabalho no Rio de Janeiro

Pós-graduação em Ciências Sociais - FFC