Morphological records of oocyte maturation in the parthenogenetic tick Amblyomma rotundatum Koch, 1844 (Acari: Ixodidae)

Funda��ão de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Localization of Antigenic Sites in Unfed Nymphs of Amblyomma triste Koch 1844 (Acari: Ixodidae) Ticks by Immunohistochemistry

P>The reactivity of sera collected from guinea pigs after three infestations with Amblyomma triste nymphs on histological sections of the same tick species was investigated through immunohistochemistry to identify potential target cells and tissues. Six guinea pigs were infested thrice, at 30 day intervals, with 30 nymphs of A. triste per animal per infestation. Blood samples were collected from the guinea pigs 15 days after each infestation for serum separation; normal serum was obtained before the first infestation as control. Unfed A. triste nymphs' histological sections were submitted to indirect immunohistochemistry technique by using normal or hyperimmune guinea pig serum as primary antibody and a goat IgG-alkaline phosphatase-APase conjugate as secondary antibody. A weak to moderate APase activity was observed in cells of salivary glands, midgut and haemolymph of unfed nymphs incubated with hyperimmune serum.

Estimativa do tamanho das fêmeas com ovos de Moina minuta Hansen, 1899 (Cladocera, Crustacea) no lago Amapá, Rio Branco, Estado do Acre Brasil

Moina minuta, a tropical species of Cladocera, was selected for the study of medium size at maturity and female egg production, due to its abundance and frequency in samples during low-water season in 1997 and high-water season in 1998, in Amapá Lake, Western Amazônia. The primiparous female had a size of 330 μm and 340 μm in low and high water, respectively. Moina individuals reached maximum size during high water (595μm). The medium size of the ovigerous females, in low water was 501 μm, producing an average of 4.41 eggs/female, while in high water, it was 533μm, with an average egg production of 4.84 eggs/female. The results, analyzed by the t test and Fischer's F test, showed that there were no statistical differences in size among individuals (t= -10.69, F=1.20 and P>0.1227), nor among ovigerous females (t= -4.45, F=1.02 and P>0.8906), considering the two seasons.

Lepidobatrachus asper Budgett,1899 (Amphibia: Anura: Ceratophryidae): New country record, distribution map and natural history notes

Lepidobatrachus asper is a large to medium frog known from the Chaco lowlands of Paraguay and Argentina. We provide the first species record for the Brazilian Chaco, which extends the species geographical distribution ca. 73 km northeast from Puerto Casado, Alto Paraguay Departament, Paraguay. We also provide a distribution map and information about the species habitat conditions and diet. The Brazilian Chaco is still poorly surveyed, and the rapid environmental degradation can lead to local extinctions of certain species. © 2013 Check List and Authors.

As mulheres de Klaxon: o universo feminino a partir dos modernistas

Pós-gradua��ão em Artes - IA

Dinâmica da vitelogêneses de carrapatos Amblyomma triste (Koch, 1844) (Acari: Ixodidae)

Coordena��ão de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análises moleculares e da presença de endobactérias de Camponotus textor Forel, 1899 (Hymenoptera, Formicidae)

Pós-gradua��ão em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Sociabilidade e política: Oliveira Lima, Joaquim Nabuco e o Pan-Americanismo (1899-1907)

Pós-gradua��ão em História - FCHS

A presença feminina na a��ão educacional presbiteriana no Brasil do século XIX (1859-1899)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

“Fagulhas”: uma coluna de crônicas de Coelho Neto na Gazeta de Notícias (1897-1899)

Coordena��ão de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avalia��ão da resistência em caprinos a ninfas do carrapato Amblyomma cajennense (Fabricius, 1787) e da reatividade cruzada com A. hebraeum (Koch, 1844) (Acari:Ixodidae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Diversidade de helmintos de Notothenia coriiceps Richardson, 1844 da Ba��a do Almirantado, Ilha do Rei George, Antártica

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Biologia reprodutiva de toninha, Pontoporia blainvillei (Gervais & D'Orbigny, 1844) (Mammalia Cetacea), no litoral sul de São Paulo e norte do Paraná

Funda��ão de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Hábitos alimentares de Toninha, Pontoporia blainvillei (Gervais e D'Orbigny, 1844) (Mammalia, Cetacea), no sul do Estado de São Paulo e norte do Paraná, Brasil

Funda��ão de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Paulo Duarte (1899-1984): um intelectual nas trincheiras da memória

Coordena��ão de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)