Cortaritermes intermedius Banks, 1919 中间利颚白蚁

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1. CASTE DEVELOPMENTAL PATHWAYS OF Cortaritermes fulviceps (BLATTODEA, TERMITIDAE).

   Giovana Annoni, Juan Manuel Coronel, E. R. Laffont · 2017 · BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura

   摘要

   The study of the developmental pathways in termites contributes to the understanding of caste evolution and resources utilization, as well as other ecological aspects. In this paper, the caste developmental pathways of Cortaritermes fulviceps (Silvestri) were analyzed in natural colonies from the Province of Corrientes, Argentina. Five measurements were taken of different body parts of larvae (L), workers (W), pre-soldiers (PS), soldiers (S), nymphs (N) and alates (A) for morphometric analyses. Dissections were also performed to determine the sex of workers and soldiers. The collected data were analyzed using principal component analysis, analysis of variance and Tukey test. In the nymphal line, four nymphal instars and alates were identified. The apterous line included two larval instars. Major workers were females and minor workers, pre- soldiers and soldiers were males. The results suggest that the developmental pathways of C. fulviceps is similar to the one of the genus Nasutitermes Dudley.

2. Nest micromorphology of the termite Cortaritermes fulviceps in different types of soil (Isoptera: Termitidae)

   Marcela I. Cosarinsky · 2004 · Sociobiology

   摘要

   The micromorphology of nests of Cortaritermes fulviceps (Isoptera, Termitidae) located in different types of soils is described using thin sections, following the methodology for studying soil micromorphology. In all these cases, the nest microstructure is remarkably different from that of the surrounding soil, indicating that workers modify the soil microstructure when building. In sandy soils, with scarce organic matter, workers employ single sand grains cemented with fecal material to build the nest. In loamy clay soils, very rich in organic matter, single sand grains and soil crumbs are also cemented with fecal material, whereas in silty soils, the nests are constructed with soil pellets molded in the buccal cavity of the workers, loaded and piled without any kind of mortar. The fecal origin of the cement was determined by a comparative analysis of its constituents with those of the workers' hindgut content.

3. DINÁMICA POBLACIONAL DE Cortaritermes fulviceps (SILVESTRI, 1901) (ISOPTERA: TERMITIDAE)

   Giovana Annoni, Juan Manuel Coronel, E. R. Laffont · 2013 · BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura

   摘要

   Se analizaron las poblaciones de 16 nidos de Cortaritermes fulviceps procedentes de diferentes localidades de la Provincia de Corrientes (Argentina) en las cuatro estaciones del año. Se extrajeron 4 nidos por cada estación. Se registró la presencia de reproductores en 7 de los nidos analizados. Las castas obreras, soldados e inmaduros blancos estuvieron presentes en todas las estaciones, no así los soldados blancos y pre-alados. La razón del total de obreras: soldados se mantuvo constante durante todo el año con una proporción de 6:1, excepto en primavera donde se registró un descenso a 3:1. Se registraron correlaciones positivas entre el total de obreras y soldados y entre inmaduros blancos y pre-alados, mientras que las correlaciones resultaron negativas entre los inmaduros blancos con las obreras y soldados, y entre pre-alados con obreras y soldados. Los pre-alados fueron encontrados en las 4 estaciones del año. Hubo diferencias significativas entre las estaciones en las proporciones de todas las castas, a excepción de las obreras menores. No se registraron diferencias significativas entre estaciones en el volumen de las poblaciones analizadas, al igual que entre el número de individuos estimados por termiteros.

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