Mosquitoes (Diptera, Culicidae) inhabiting foliar tanks of Guzmania brasiliensis Ule (Bromeliaceae) in central Amazonia, Brazil

Mosquitoes in the family Culicidae develop their immature forms in different environments depending on various circumstances. This study represents the first contribution to the ecological knowledge of culicids living in the bromeliad G. brasiliensis. The objectives of the study were to compare the Culicidae fauna of bromeliads in two seasonal periods, analyzing their abundance, richness and the influence of pH, conductivity and water volume, on the populations. Sampling was done at Reserva Adolpho Ducke, Manaus, Amazonas, Brazil between 2003 and 2005. Six samplings were done in the rainy season and six in the dry season. On each sampling day, six terrestrial and six epiphytic bromeliads, totaling 144 sampling units, were retrieved. A total of 444 immature mosquitoes were collected, distributed in the following species: Culex (Microculex) stonei Lane & Whitman, Culex (Microculex) chryselatus Dyar & Knab, Culex (Microculex) sp., Wyeomyia (Hystatomyia) autocratica Dyar & Knab and Wyeomyia (Hystatomyia) splendida Bonne-Wepster & Bonne. The relationship between abundance of Culicidae and sampling period was not significant, although abundance was higher in the dry period. There were significant correlations between water volume and the abundance (p = 0.003) and richness (p = 0.001) of culicids. The pH was positively related to the occurrence of the species Wy. autocratica (p= 0.010) and Wy. splendida (p= 0.006), demonstrating the influence of this factor in the structuring of bromeliad-inhabiting communities.

Författaren Sigurd Klockare 15.4.1971 Stockholm

Kirje

Konelatoja Pauli Ihalainen 15/3 1967

Kirje 15.3.1967

Evaluación de la calidad medio marino costero en la Bahía de Talara y aguas adyacentes, 15-17 abril 1997

Presenta los resultados obtenidos de la evaluación de la calidad del ecosistema marino costero de la bahía Talara y aguas adyacentes, realizada del 15 al 17 de abril de 1997, con el objetivo de establecer un análisis comparativo estacional (otoño) y evaluar la influencia de las descargas terrestres en el medio marino dentro del Programa de Vigilancia del Estado de Calidad Marino Costero. El objetivo principal del estudio es continuar con la vigilancia del estado de calidad acuática.

Lottery Action, Vol. 15, no. 1, January 7-27, 2008

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Lottery Action, Vol. 15, no. 11, June 2-15, 2008

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Lottery Action, Vol. 15, no. 18, August 18 - September 7, 2008

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Lottery Action, Vol.15, no. 17, October 8-21, 2008

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Lottery Action, Vol. 15, no. 19, October 6-19, 2008

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