Description of the larva and redescription of the adult of Kempnyia neotropica Jacobsen and Bianchi (Plecoptera : Perlidae) with biological notes

Kempnyia neotropica is the species with the widest distribution in this genus. In this work, samples collected in the states of Gois, Minas Gerais and So Paulo were analysed, confirming that all belong to a single species. The larva is described, the adult is redescribed and biological notes are presented.

Fluctuations in Richness and Abundance of Social Wasps During the Dry and Wet Seasons in Three Phyto-Physiognomies at the Tropical Dry Forest of Brazil

The social wasp nests were quantified in three different plant physiognomies (forested Caatinga, shrubby Caatinga, and agricultural systems) to analyze the effect of environmental seasonality and plant physiognomy on the richness, nest abundance, and species composition of social wasps in the region of tropical dry forest of Brazil. The forested Caatinga physiognomy had the greatest richness of species (S = 16), followed by shrubby Caatinga (S 13) and by agricultural system (S = 12). The first axis of detrended correspondence analysis (DCA) explained 67.8% of the variability and shows a gradient of the fauna from agricultural system and shrubby Caatinga to forested Caatinga. In the first axis, wet season scores were much higher than those for the dry season in forested Caatinga. The second axis explained 18.7% of the variability and shows a separation of samples collected during the wet or the dry periods in shrubby Caatinga. This separation was less evident in the agricultural system. Variations in nest abundance were more intense in arbustive caatinga (45% decrease in number of active nests in the dry period), moderate in forested Caatinga (24% decrease in number of active nests in the dry period), and low in agricultural systems (8% decrease in the dry period).

Ephemeroptera, Plecoptera e Trichoptera em corredeiras de riachos do Parque Estadual Intervales, Estado de São Paulo.

The fauna of Ephemeroptera, Plecoptera and Trichoptera (EPT) from Intervales State Park has been recorded since the 1990s. As a result of these sampling efforts, we present in this study a list of EPT genera in riffles from streams of Intervales State Park, São Paulo State.

Two new species of Perlidae (Plecoptera) from Mato Grosso State, western Brazil

Adult stoneflies collected in emergence and light traps in central Mato Grosso State are studied. Two new species, Anacroneuria jaciara sp.n. and Macrogynoplax matogrossensis sp.n. are described. Copyright © 2005 Magnolia Press.

Avaliação de genótipos de soja em semeadura de inverno, em Selvíria, MS: Produção e qualidade fisiológica de sementes

The sowing of soybean out of the conventional period is an option for the production of seeds with high physiological quality. On the other hand, this fact makes necessary the search for cultivars adapted to new environmental conditions. Therefore, additional research is needed to supply more information to producers related to the choice of the most suited cultivars with regard to high seed quality. This research was conducted in Selvíria, MS, Brazil in which the cultivars FT-2000, FT-Inaê, Embrapa 20 (Doko RC), CAC-1, IAC-17, IAC-18, IAC-19, IAC-8-2, FT-101, FT-109, MT/ BR 45 (Paiaguás), MT/BR 50 (Parecis), MT/BR 52 (Curió), MT/BR 53 (Tucano), MT/BR 47 (Canário), MT/BR 49 (Pioneira), BRSMT Uirapuru, BR Emgopa 314 (Garça Branca), MG/BR 46 (Conquista), FT-Estrela, FT-Cometa, Dourados, JAB-11, BR 9 (Savana), FT-Abyara, Embrapa 30 (Vale do Rio Doce), Embrapa 9 (Bays), Embrapa 31 (Mina), IAC-16; IAS 5, EMGOPA-304, and IAC-Foscarin 31 were studied. These cultivars were sown on June 5, 1998, and evaluated both for agronomic characteristics and the physiological potential of the seeds. The experimental units were arranged in the field according to a randomized complete block design with five replicates. The cultivars more adapted to the climatic conditions were Parecis, Bays, CAC-1, Garça Branca, Paiaguás, Pioneira, and IAC-16. It was concluded that winter sowing should start at the beginning of May, with water supply, since June was found to be too late.

The Role of Wing Pigmentation, UV and Fluorescence as Signals in a Neotropical Damselfly

Pigmentation patterns, ultraviolet reflection and fluorescent emission are often involved in mate recognition and mate quality functions in many animal taxa. We investigated the role of wing ultra-violet reflection, fluorescence emission, and pigmentation on age and sexual signals in the damselfly Mnesarete pudica. In this species, wings are sexually dimorphic in colour and exhibit age dependency: males and females show a smoky black colouration when young, turning red in mature males while it turns brown in females. First, we investigated wing UV patterns through reflectance and emission spectra. Second, behavioural experiments were undertaken to show male and female responses to manipulated wing pigmentation and experimentally reduced UV (UV-). Reflectance spectra of the wings of juvenile and mature males and females were used to show the differences between controls and individuals with manipulated colouration used in the behavioural experiment. UV-reduced, females with wings painted red, and control males and females were tethered and presented to conspecific males and females, and their behavioral responses were recorded. The male red wing pigmentation and females with red wings elicited an aggressive response in territorial males and a sexual response in females. Both males and females showed neutral responses towards individuals with reduced UV. Wing signals of juvenile individuals also provoked neutral responses. These results suggest that UV, together with pigmentation, plays a role during mate recognition in males and females. Other than butterflies and spiders, it seems that fluorescence signals and UV reflectance can also be part of communication in odonates. © 2013 Springer Science+Business Media New York.

New species and records of Anacroneuria (Plecoptera: Perlidae) from Rio de Janeiro State, Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Atributos químicos do solo, densidade de raiz e produtividade da cana-de-açúcar em função da aplicação de gesso agrícola

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

A controvérsia nestoriana e suas implicações político-administrativas nas cartas de Cirilo de Alexandria (séc. V d.c.)

Pós-graduação em História - FCHS

A concepção de Realeza Católica Visigoda e as ideias políticas de Isidoro de Sevilha

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A informação mediada no discurso de Edir Macedo: um análise de editoriais da Folha Universal

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação do vigor de sementes de beterraba (Beta vulgaris L.)

Pós-graduação em Agronomia - FCAV

Ensino de leitura e escrita baseado no paradigma da equivalência: um programa de consultoria colaborativa com o professor

Pós-graduação em Psicologia do Desenvolvimento e Aprendizagem - FC

Memória audiovisual da reforma psquiátrica no Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Fragmentação florestal: efeitos em múltipla escala sobre a diversidade de aves em remanescentes florestais no noroeste do Estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)