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A 2x2x2 factorial experiment was carried out in a 16 earthen pond system to determine the effect of poor and improved nutrient inputs on the performance of mixed-sex and mono-sex Nile tilapia over both wet and dry seasons in Central Thailand. The poor nutrient level consisted of fresh ruminant manure only (50 kg dry matter ha -1 day -1 ) and the improved also received inorganic...
The release of high numbers of the eggparasitoid Trichogramma brassicae Bezd.(Hym. Trichogrammatidae) to control theEuropean corn borer (ECB), Ostrinianubilalis Hb. (Lep.: Crambidae) in maize hasraised concerns about potential negativeeffects on native natural enemies. The nativelarval parasitoid Lydella thompsoniHerting (Dipt.: Tachinidae) is the mostfrequent and important ECB parasitoid insouthern...
Perspectives in Ecology, Evolution and Systematics is a new, international refereed journal which publishes reviews and monographs. It has been launched by the Rübel Foundation, a private trust associated with the Geobotanical Institute of the Swiss Federal Institute of Technology, in association with the publishing firm Gustav Fischer Verlag. We set out here how this journal came into being, and...
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