Dominância hierárquica, organização social e perfil de hidrocarbonetos cuticulares de Pachycondyla striata Fr. Smith, 1858 (Formicidae: Ponerinae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The influence of temperature on oxygen consumption rates of workers of two leaf cutting ants, Atta laevigata (F. Smith, 1858) and Atta sexdens rubropilosa (Forel, 1908)

1. 1. The oxygen consumption in workers of two simpatric leaf cutting ants, Atta laevigata and Atta sexdens rubropilosa was measured at different temperatures. 2. 2. In the temperature range between 5-35°C, with 5°C increments, the respiratory rates increased with temperature, but the R-T curves of both ants showed neither a marked drop at the low end nor a break at the high end; except between 30 and 35°C. 3. 3. The respiratory rates of A. s. rubropilosa were higher than those of A. laevigata and in the midrange of temperatures, the rates of A. laevigata increased faster than those of A. s. rubropilosa. 4. 4. Q10 values did not indicate regions of compensation for temperature in both ants, but suggested that adjustments may occur at high temperatures (25-35°C), as expected for tropical ants. 5. 5. Temperature variations did not alter significantly the slope of the curve relating oxygen consumption and body weight in both species. © 1982.

The respiratory metabolism of the castes of two leaf cutting ants, Atta laevigata (F. Smith, 1858) and Atta sexdens rubropilosa forel, 1908

1. 1. The respiration of the different castes of two species of leaf-cutting ants, Atta laevigata and Atta sexdens rubropilosa was measured in both workers and sexed forms. 2. 2. The respiratory rates (μl O2/mg(live)/hr) were, in A. laevigata, 0.644 (gardeners), 0.594 (cutters), 0.354 (soldiers), 0.233 (males) and 0.085 (females); in A. s. rubropilosa, 0.803 (gardeners), 0.748 (cutters), 0.510 (soldiers), 0.375 (males) and 0.274 (females), significantly higher than A. laevigata. 3. 3. All castes considered, the b-values of the equation relating oxygen consumption and weight in A. laevigata (0.53) were significantly different from that in A. s. rubropilosa (0.73). © 1981.

Caracterização morfoquímica de adultos da formiga Camponotus atriceps Smith, 1858 (Hymenoptera, Formicidae) invasoras de colmeias de Apis mellifera Linnaeus, 1758 (Hymenoptera: Apidae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Desempenho reprodutivo e diferenciação gonadal em piau-três-pintas, Leporinus friderici, Bloch 1794

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Dinâmica populacional, distribuição espacial e plano de amostragem sequencial de Euschistus heros (Fabricius, 1794) (Heteroptera: Pentatomidae) em cultivares de soja

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Modelos de previsão de ocorrência de adultos de diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) em cana-de-açúcar (Saccharum spp.)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Dorothy Perry Thompson Papers - Accession 1352

Dr. Dorothy Perry Thompson was a Winthrop professor of English and an accomplished poet and writer. As well as teaching in the English Department, Dr. Thompson also coordinated the African American Studies program which she helped found. The Dorothy Perry Thompson Papers consists of her poems and writings, drafts, research, notes, contract agreements, awards and certificates, speaking engagement flyers and records, thank you letters, and promotion and tenure records.

Efecto de la Artemia enriquecida con distintas emulsiones comerciales sobre el crecimiento y desarrollo esquelético de larvas de lenguado senegalés (Solea senegalensis Kaup, 1858)

Máster Oficial en Cultivos Marinos. VI Máster Internacional en Acuicultura. Trabajo presentado como requisito parcial para la obtención del Título de Máster Oficial en Cultivos Marinos, otorgado por la Universidad de Las Palmas de Gran Canaria (ULPGC), el Instituto Canario de Ciencias Marinas (ICCM), y el Centro Internacional de Altos Estudios Agronómicos Mediterráneos de Zaragoza (CIHEAM)

Preferencias en el apareamiento de las hembras de Poecilia reticulata Peters, 1858, en condiciones de turbidez

[ES] Poecilia reticulata, comúnmente conocida como guppi, presenta un marcado dimorfismo sexual y variada coloración, siendo ésta última un factor importante en la selección sexual. Se estudia las preferencias de las hembras hacia machos con diferencias morfológicas y color en las colas bajo diferentes condiciones de turbidez del agua. No se observó ninguna tendencia en la elección de éstas en función de las características de la cola de los machos, sin embargo, el tiempo de cortejo empleado cambia significativamente en función de la turbidez del agua.