Crescimento de Aegla manuinflata (Decapoda, Anomura, Aeglidae) em ambiente natural

O presente trabalho teve como objetivo avaliar o crescimento de Aegla manuinflata Bond-Buckup & Santos, 2009 em ambiente natural. Para isso foram realizadas coletas mensais de abril de 2006 a maio de 2007 no arroio Passo Taquara, no município de São Pedro do Sul, Rio Grande do Sul, Brasil. Os organismos foram coletados utilizando armadilhas plásticas e puçá. Os espécimes foram sexados e tiveram mensurado o comprimento do cefalotórax (CC), em seguida foram devolvidos ao córrego. O crescimento foi avaliado utilizando o modelo de von Bertalanffy. As curvas de crescimento do cefalotórax, estimadas para machos e fêmeas, são descritas pelas seguintes equações Ct = 28,00 [1 - e-0,0047(t+10,63)] e Ct = 25,16 [1 - e-0,0051(t+17,65)], respectivamente. Os machos atingem tamanhos maiores que as fêmeas. A longevidade foi estimada em três anos para os machos e dois anos e meio para as fêmeas.

Morbidade da esquistossomose mansoni no Brasil. I - Estudo de 4.652 casos observados no Rio de Janeiro de 1960 a 1979

No período de vinte anos (1960-1979), os autores observaram na Clínica de Doenças Infecciosas e Parasitárias da Faculdade de Medicina da Universidade Federal do Rio de Janeiro, sediada no Pavilhão Carlos Chagas do Hospital São Francisco de Assis, 4.652 casos de esquistossomose mansoni procedentes de 18 Estados do Brasil. Entre os casos observados 87,18% eram da forma hepatointestinal e 12,82% da forma hepatoesplênica entre os quais 30 tinham a forma pulmonar associada. Adicionalmente 30 casos da forma aguda ou toxémica foram estudados no mesmo Serviço, em famílias residentes no Rio de Janeiro. Além da observação clínica e do estudo epidemiológico incluindo o perfil migratório de cada caso e da casuística como um todo, foram realizados exames complementares como hemograma, mielograma, dosagem de transaminases, provas de função hepática, eletroforese de proteínas séricas, biópsia hepática, radiografias de tórax e de esôfago, esplenoportografia, eletrocardiograma e estudos hemodinâmicos do sistema porta, do coração e da artéria pulmonar em grupos de pacientes selecionados.

A new helminth parasite of fish: Spirocamallanus freitasi sp. n. (Nematoda - Camallanidae)

A new species of nematode is described, Spirocamallanus freitasi sp. n. The worms were collected from fishes (Bergiaria westermanni, Pimelodus maculatus and Pimelodus sp.) living in Três Marias Dam (São Francisco River) in the State of Minas Gerais, Brazil. Spirocamallanus freitasi sp. n. differs from Procamallanus iheringi, P. amarali, P. macaensis, P. (Spirocamallanus) pimelodus, P. (S.) solani and P. (S.) pereirai by having digitated larger spicule and from P. cruzi by having not digitated terminal parts of both spicules. It differs also from P. (S.) intermedius by having not larger spicule divided in two undigitated branches and six to nine sclerotized bands in the buccal capsule; P. rarus has three to four sclerotized bands and tridigitated larger branch of longer speicule, differing from S. feitasi sp. n.

Travassosnema gen. n. with the description of T. travassosi sp. n. (Dracunculoidea, Guyanemidae) parasite of Acestrorhynchus lacustris Reinhardt, 1874 (Characidae) from Três Marias Reservoir, MG, Brazil

A new genus, Travassosnema (Guyanemidae, Dracunculoidea) is proposed to include filariid worms having esophagus divided into muscular and glandular parts, with esophageal appendix near junction with intestine; anus functional; vulva anterior, well developed and functional in mature females. Travassonema travassosi sp. n., a parasite of Acestrorhynchus lacustris Reinhardt, 1874 from Três Marias Reservoir (São Francisco River) in the State of Minas Gerais, Brazil, is described. The generic and the specific names are a tribure to Brazilian parasitologist Lauro Travassos at his birth centenary.

Simulium (Psilopelmia) virescens, a new black-fly species (Diptera: Simuliidae) from the southwestern region of the state of Bahia, Brazil

The last-instar larva, pupa, male and female of Simulium virescens sp. nov. are described and illustrated. This species has a peculiar larva, which has an elongated head capsule and light-green colour. The first thoracic segment has tubercle on its dorsal region and the third thoracic segment has one pair of tubercles; the first to the fourth abdominal segments have one pair of tubercles on each segment. Until now this new species had only been collected at the type locality, which is on the middle stretch of the Correntina River in the southwestern portion of the state of Bahia, Brazil. Females were voraciously biting humans during the field work. This new species represents the second species of Simulium(Psilopelmia) in Brazil and the first registered outside of the Brazilian Amazon Region.

Understanding the hierarchy governance choice of some wineries in Brazil - case study of 3 Brazilian wineries

ABSTRACT This study aims to contribute towards understanding the multiple factors, which influence firm's governance decisions. To identify some of these factors, three cases in the Brazilian wine industry were analyzed: Miolo located in Vale dos Vinhedos (South of Brazil) and in Vale do Rio São Francisco (Northeast of Brazil); Don Laurindo located in Vale dos Vinhedos; and ViniBrasil located in Vale do Rio São Francisco. For the most part, all three firms procure the grapes they use for their wine production in-house. Only Miolo purchases an insignificant amount of grapes outside of its production. By Brazilian standards, these regions have a long tradition of grape production and it is not difficult to purchase sufficient quantity of grapes to produce wine. However, the wineries are concerned also about the quality of the grapes they use and purchasing high-quality grapes might be critical issue. On the other hand, the quality of grapes is easily measured and the cost to buy in the market is cheaper than producing in-house. Furthermore, also the level of asset specificity present in the grape-grower-wine-producer transaction seems, by itself, insufficient to justify the use of hierarchical governance forms. Then, the aim of the article is to analyze the reasons why these wineries largely rely on hierarchy governance forms to procure their grape-inputs. What explains their use of hierarchy governance, given that both asset specificity and measurement problems appear to be relatively low?

Caracterização morfológica de adultos de Nusalala tessellata (Gerstaecker, 1888) (Neuroptera, Hemerobiidae)

Morphologic characterization of adult of Nusalala tessellata (Gerstaecker, 1888) (Neuroptera, Hemerobiidae). Adult of N. tessellata is redescribed based on morphological characters. 533 specimens were collected in São Paulo state in plantations of citrus (Santa Rosa de Viterbo), soybean (Nuporanga), cotton (Ribeirão Preto) and corn (Ribeirão Preto and Jaboticabal). Some other additional specimens collected on Sorghum bicolor (Lavras-MG) and Ilex paraguariensis (São Mateus do Sul, Cascavel-PR) were also studied. Illustrations obtained by SEM are given by first time.

Caracterização morfológica de espécies de Hemerobius Linnaeus, 1758 (Neuroptera, Hemerobiidae) associadas a cultivos de café (Coffea arabica L.), milho (Zea mays L.) e erva-mate (Ilex paraguariensis St. Hill.)

The predators were collected in mate crop in Cascavel and São Mateus do Sul, Paraná, Brazil and some other additional specimens in coffee and maize crops in Ribeirão Preto, São Paulo, Brazil. Illustrations obtained by SEM are given by the first time to the principal structures. Three species of Hemerobius were identified: H. bolivari Banks, 1910; H. domingensis Banks, 1941 and H. gaitoi Monserrat, 1996. H. domingensis is recorded for the first time to Brazil.

Comparação dos sistemas de cultivo nativo e adensado de erva mate, Ilex paraguariensis St. Hil., quanto à ocorrência e flutuação populacional de insetos

This research was carried out in order to compare the occurrence of insects in two maté cultivation systems, native and high tree density. It was performed from August/2000 to September/2001, in a private property in São Mateus do Sul county, in Paraná State, Brazil. Visual inspections of trees and light traps were used to evaluate insect populations in both areas. For Hedypathes betulinus (Klug) (Coleoptera, Cerambycidae), only six adults were observed in the dense area. Based on presence of sawdust at the basis of the trunk, it was obtained that the number of attacked trees did not surpass 11% in either area. For Gyropsylla spegazziniana (Lizer y Trelles) (Hemiptera, Psyllidae), the number of galls per tree was counted and it was observed that the population peak occurred from November to January. For Hylesia spp. (Lepidoptera, Saturniidae) and Thelosia camina Schaus (Lepidoptera, Eupterotidae), the presence of caterpillars on the trees was noticed from September to February, with the population peak in November and December. Adults of Hylesia spp. were more numerous in February and March. Two species that were not previously recorded for Brazil on maté were identified: Hylesia paulex Dognin (83%) and Hylesia remex Dyer (17%), collected with light traps. The maté caterpillar, T. camina was not collected with these traps. Nymphs and adults of Ceroplastes grandis Hempel (Hemiptera, Coccidae) were observed along the year on the branches, with population peak between April and June for the nymphs and from September to November for the adults. It should be considered that despite higher insect incidence in the dense area compared to the native area, the first presents higher yield, and that with a good pest management program the insect problems can be minimized.

Nova espécie do gênero Ptesimopsia Costa (Coleoptera, Elateridae, Agrypninae)

Ptesimopsia gracilis sp. nov. coletada em armadilha malaise na Fazenda Jaburu, Canindé do São Francisco, Sergipe, Brasil, é descrita e ilustrada.

Navicordulia aemulatrix sp. nov. (Odonata, Corduliidae) from northeastern Santa Catarina State, Brazil

Navicordulia aemulatrix sp. nov. (holotype male deposited in MZSP: Brazil, Santa Catarina State, [São Bento do Sul municipality, 26°14'58"S, 49°22'59"W], [railroad station] Rio Vermelho, II.1952) is described and illustrated based on three males. The long cercus (2.9-3.2 mm) places this species in the longistyla-group together with N. kiautai, N. longistyla and N. nitens but it differs from them mainly by the shape of cercus, with carinated part occupying 0.33 of cercus total length, and also by dorsal, ventro-medial and ventro-lateral tubercles developed. An unusual process on tergal portion of prothorax is reported for the first time in Navicordulia. The rate of description of new species of South American 'Corduliidae' is discussed. A map with records of Atlantic Forest Navicordulia species and a list of Brazilian corduliids by state are also presented.

Termite assemblages in five semideciduous Atlantic Forest fragments in the northern coastland limit of the biome

Termites are abundant organisms in tropical ecosystems and strongly influence the litter decomposition and soil formation. Despite their importance, few studies about their assemblage structures have been made in Brazilian Atlantic Forest fragments, especially in the area located north of the São Francisco River. This study aims to analyze the assemblage composition of five Atlantic Forest fragments located in the northern biome limit along the Brazilian coast. A standardized sampling protocol of termites was applied in each fragment. Thirty-three termite species belonging to twenty genera and three families were found in the forest fragments. The wood-feeder group was dominant both concerning to species richness and number of encounters in all areas. In sites northern to 7°S, there is an evident simplification of the termite assemblage composition regarding species richness and number of encounters by feeding group. This fact is apparently due to a higher sandy level in soils and to semideciduous character of the vegetation in the northern fragments. Thus, even on the north of São Francisco River, termite biodiversity is heterogeneously spread with highest density of species in the portion between 07°S and São Francisco River mouth (10°29'S).

Insect galls of a protected remnant of the Atlantic Forest tableland from Rio de Janeiro State (Brazil)

ABSTRACT Insect galls of a protected remnant of the Atlantic Forest tableland from Rio de Janeiro State (Brazil): Galling insects in Rio de Janeiro state are known by their great diversity, despite most of the surveys have been done in restinga. This paper investigated the insect galls from a remnant of Atlantic Forest located in São Francisco de Itabapoana municipality, Rio de Janeiro state, Brazil. The galling insect fauna was surveyed from March, 2013 to April, 2014 at the Estação Ecológica Estadual de Guaxindiba. 143 gall morphotypes were found in 31 plant families, 60 genera and 82 species. Fabaceae, Myrtaceae and Sapindaceae were the main host families, being Trichilia, Tontelea and Eugenia the main host genera. Most galls occured on leaves, with globose shape, green and glabrous. Diptera (Cecidomyiidae), Hemiptera, and Lepidoptera were the inducing orders and the associated fauna comprised parasitoids (Hymenoptera), inquilines (Lepidoptera, Coleoptera, and Hemiptera: Coccoidea), successors (Psocoptera, Collembola and Acari), and predators (Pseudoscorpiones). Three plant genera and nine plant species are recorded for the first time as host of galls in Brazil. All the records are new to the municipality, and the distribution of 15 galling species is extended to the North of the state of Rio de Janeiro.

Caracterização micromorfológica e considerações sobre a gênese de solos de tabuleiro do semi-árido do Brasil

Detalhadas investigações macro e, especialmente, micromorfológicas foram realizadas em dois perfis de Argissolo Amarelo e um de Planossolo de uma superfície geomorfológica tabular, pertencente aos Tabuleiros Sertanejos (Interioranos) na bacia hidrográfica do médio São Francisco em Petrolina, Pernambuco. O objetivo do estudo foi caracterizar micromorfologicamente os solos, procurando fornecer subsídios para o entendimento da pedogênese, como uma forma de entender a diversidade dos solos na paisagem. Os resultados indicam que os três perfis foram derivados de sedimentos pós-cretáceos, em intensa mistura com resíduos de rochas cristalinas do Pré-Cambriano, provavelmente, ainda, influenciados por materiais de antigos terraços fluviais do rio São Francisco. As diferenciações entre os três perfis estão relacionadas com a heterogeneidade resultante da mistura desses materiais de origem, mas, principalmente, com o posicionamento dos solos no relevo, gerando condições diferenciadas de drenagem. Concreções de ferro herdadas do material de origem, sofreram degradações e se transfomaram em mosqueamentos plínticos, e, posteriormente, foram dissipadas no solo, eluviação/iluviação, ou perdas do sistema, parece ser um dos processos envolvidos na pedogênese.

Propriedades químicas do solo aluvial da Ilha de Assunção - Cabrobó (Pernambuco)

O solo aluvial da Ilha de Assunção, localizada no Rio São Francisco, em Cabrobó (PE), tem sido intensamente cultivado com culturas anuais sob irrigação. O nível de produtividade atual não é satisfatório em razão do uso de práticas agrícolas inadequadas para a continuidade da atividade agrícola. Objetivou-se realizar um levantamento das propriedades químicas dos solos numa área de 1.131 ha, por meio da coleta de 1.053 amostras de solo, na profundidade de 0-30 cm. As amostras foram caracterizadas quimicamente e os dados analisados por técnicas estatísticas descritivas. Os resultados obtidos indicaram haver maior variabilidade para os teores de alumínio, potássio, fósforo e para a percentagem de saturação por sódio e menor variabilidade para pH, não havendo distribuição normal dos dados. As amostras de solo apresentaram, em sua maioria, baixos teores de alumínio, de matéria orgânica e de fósforo; valores de pH e CTC e teores de cálcio + magnésio e potássio adequados para a maioria das culturas e foram classificadas como normais em relação à percentagem de saturação por sódio.