Resumo Lejeunea pulverulenta está sendo reportada pela primeira vez para o Nordeste do Brasil. Os espécimes foram coletados na Serra Bonita, Município de Camacan, sul da Bahia, Brasil. Descrição e ilustração são apresentadas para a espécie.

Abstract Lejeunea pulverulenta is recorded for the first time to the Northeast of Brazil. The specimen was collected in Serra Bonita, Municipality of Camacan, southern Bahia, Brazil. Herein the species is described and illustrated.

ABSTRACT Restingas are a coastal component of the Atlantic Forest. They experience high temperatures and possess soils with a low capacity to retain water, low nutrient content and high salt concentrations. Studies on bryophytes of restingas have been mostly conducted in Southeastern Brazil, and so we aimed to characterize the bryophyte flora of seven areas of restinga in the Northeastern Region and to establish their floristic affinities with other restingas in Brazil. Fifty-five species were found in the studied restingas, the vast majority of which are generalist species with life forms of intermediate tolerance to desiccation and of corticicolous and terrestrial habitat. The number of species per area is low compared to the species richness of other restingas in Brazil. A cluster analysis, although based on low similarity, showed that the bryoflora from the surveyed areas is distinct from those of restingas from Bahia, Espírito Santo and Rio de Janeiro, which all form a group, and those of the coast of São Paulo, which also comprised a cluster. The heterogeneous climate, soils and vegetation structure of the studied restingas, in comparison those of the Southeast, act as selective filters for the species, thereby contributing to the distinction observed in those communities.

The northeastern Brazilian Atlantic forest is the region with the greatest diversity of bryophytes in the country. However, knowledge about bryophytes is irregularly distributed among Brazilian regions. Therefore, we aimed to contribute to knowledge about bryophytes on a regional scale in the northeastern Atlantic forest, to identify the centers of bryophyte diversity in that region, and to reiterate the importance and identify locations for which new protected areas should be created. We built a database of bryophytes in 23 locations of the region, based on a literature review and new floristic inventories. To identify the locations of greatest relevance to bryophyte conservation, we considered 1) total and endemic species richness, 2) phylogenetic diversity (PD), and 3) functional diversity (proportion of shade specialists). The northeastern Atlantic rainforest contains 396 spp., representing 26% of the taxa occurring in the country, 13 of which are endemic. Generalist species predominated (164 spp.), followed by shade (133 spp.) and sun (92 spp.) specialists. The Murici Ecological Station had the highest richness, number of endemic species, and phylogenetic diversity.

O presente estudo teve como objetivo verificar a ocorrência de Salmonellae em amostras de carcaças de frango e a suscetibilidade dos isolados a agentes antimicrobianos. Das 260 carcaças analisadas, 25 (9,6%) foram positivas para Salmonella. Salmonella Enteritidis foi o sorovar predominante. Com relação à suscetibilidade a agentes antimicrobianos, 94,7% das cepas de Salmonella testadas, apresentaram resistência a um ou mais agentes antimicrobianos. Os perfís de resistência mais comumente observados entre os isolados foram a resistência à estreptomicina (73,7%), nitrofurantoína (52,3%), tetraciclina (31,6%) e ácido nalidíxico (21%).

The present study was carried out to evaluate the occurrence of Salmonellae in broiler chicken carcasses and to determine the antimicrobial resistance profile of the isolated strains. Twenty-five out of the 260 broiler chicken carcasses samples (9.6%) were positive for Salmonella. S. Enteritidis was the most frequent serovar. Nineteen Salmonella isolates were tested for antimicrobial resistance, and the results indicated that 94.7% were resistant to at least one antimicrobial agent. Resistance to streptomycin (73.7%), nitrofurantoin (52.3%), tetracycline (31.6%), and nalidixic acid (21%) were the prevalent amongst Salmonella strains tested.

No presente trabalho, são compiladas as espécies de hepáticas ocorrentes no Estado de Alagoas, resultantes de informações disponíveis em catálogos e trabalhos anteriores e do inventário inédito de uma importante unidade de conservação do Nordeste, a Estação Ecológica (EsEc) Murici (9º11'05" - 9º16'48"S; 35º45'20" - 35º55'12"O). São referidas para Alagoas 116 espécies de hepáticas, tendo 106 delas ocorrido na EsEc Murici. Setenta e oito espécies são genuinamente novas ocorrências para o Estado de Alagoas, sete das quais são novas também para a região Nordeste do Brasil. São fornecidos dados sobre a distribuição geográfica das espécies no Brasil e no mundo, e adicionalmente, comentários taxonômicos e ecológicos das espécies que são novas ocorrências para o Nordeste.

A list of liverworts from Alagoas State was compiled and is presented here. The list is based on catalogues and previous papers as well as the results of an unpublished survey carried out at the Murici Ecological Station (EsEc), an important protected area of the Brazilian Northeast (9º11'05" - 9º16'48"S; 35º45'20" - 35º55'12"W). One-hundred and sixteen liverworts have been recorded for the state of Alagoas, of which 106 occur at EsEc Murici. Seventy-eight are new occurrences for Alagoas, and seven of these are also new occurrences for northeastern Brazil. Data on geographic distribution in Brazil and worldwide is given here, in addition to ecological and taxonomic comments on the species that are new occurrences for the Northeast region.

Levantamentos da flora de briófitas em duas áreas remanescentes de Floresta Atlântica, a Reserva Ecológica (RE) Gurjaú (08°10'00''S e 35°02'30''O; 50-150 m n.a.m.) e a Reserva Particular de Patrimônio Natural (RPPN) Frei Caneca (08º42'37''S e 35º50'01''O; 500-750 m n.a.m.), resultaram no registro de 15 novas ocorrências para o Estado de Pernambuco. São elas 11 hepáticas das famílias Cephaloziaceae, Jubulaceae, Herbertaceae, Lejeuneaceae, Lepidoziaceae, Metzgeriaceae e quatro musgos das famílias Calymperaceae, Pterobryaceae, Sematophyllaceae e Thuidiaceae. Sete destas espécies são também novas referências para a região Nordeste. As espécies são ilustradas e comentadas quanto aos caracteres taxonômicos mais relevantes.

Floristic surveys of Bryophytes in Atlantic Rain Forest remnants from Reserva Ecológica (RE) Gurjaú (08°10'00''S e 35°02'30''O; 50-150 a.s.l.) and Reserva Particular de Patrimônio Natural (RPPN) Frei Caneca (08º42'37''S e 35º50'01''O; 500-750 a.s.l.), registered 15 new ocurrences to Pernambuco State. They are 11 liverworts of Cephaloziaceae, Jubulaceae, Geocalycaceae, Herbertaceae, Lejeuneaceae, Lepidoziaceae, Metzgeriaceae and four mosses of Calymperaceae, Pterobryaceae, Sematophyllaceae and Thuidiaceae. Seven of these species are new references for Northeastern area of Brazil. The species are illustrated and commented about relevant taxonomic characters.