Abstract The distribution, nesting habits and activity as well as seasonal population pattern of Camponotus acvapimensis Mayr were studied in a savanna area of Ghana* The ants were distributed in the poor shaded areas of the savanna grassland* Type of soil, light and food availability were found to influence the nesting and anti’s distribution. Analysis for preference of nesting sites indicated that the ants nest in the soil or grass roots but where wood is available, the bark formed a ve...
ABSTRACT Poecilia reticulata (guppy) a common ornamental tropical fish is found in many wastewater drains in Nigeria. Guppies feed on copepods which are intermediate hosts of some nematode parasites of culturable fish species. The restriction on the importation of ornamental fishes into Nigeria has enhanced the demand for local species, usually sourced from the wild. There is dearth of information on the parasites of ornamental fishes in Nigeria. This study was aimed at determining prevale...
ABSTRACT The aquatic weeds on the Westlake wetland at Zandvlei (Cape Town, South Africa) were investigated in terms of their detrimental effects, and the biotic and abiotic conditions associated with their nuisance growth. Eichhornia crassipes was the most problematic of the weeds, both from a human perspective and in its effect on the system, and it appears to out-compete the initially more abundant Ceratophyllum demersum and Azolla filiculoides after disturbances such as clearing and floo...
ABSTRACT Aspects of the feeding strategies and digestive invertebrate-microbial interactions of two saltmarsh thalassinid detritivores, the mudprawn Upogebia africana (Ortmann) and the sandprawn Callianassa kraussi Stebbing were examined. Resources available in their respective habitats were investigated together with the feeding apparatus, diet and digestive enzymes necessary for hydrolysis of refractory compounds of detritus. U. africana inhabits the upper reaches of Langebaan lagoon (Geel...
ABSTRACT Study was conducted to determine the abundance and distribution of mosquitoes and the prevalence of malaria parasites in Yabo Local Government Area. Mosquito breeding sites identification employed the use of a digital camera to snap pictures of areas where mosquitoes were observed. Mosquitoes eggs, larvae, pupa were collected and identified using the dipping method while indoor mosquitoes were caught from rooms,/toilets between the hours of 8 - 10pm using insecticide spray. A to...
ABSTRACT Study conducted from 1993 through 1996 at the ICRISAT Sahelian Centre, Niger, on the millet stem borer Coniesta ignefusalis were designed to address larval instar determination and life-fertility table construction, damage and yield loss assessment on pearl millet, Pennisetum glaucum (L.) R. Brown, and oviposition preference and larval development on two wild hosts, Andropogon gayanus Kunth and Pennisetum pedicellatum (Trin.). Biological control studies investigated the suitability o...
ABSTRACT Lymphatic filariasis, caused by Wuchereria bancrofti is a public health problem with high morbidity. The Global Progamme for Elimination of Lymphatic Filariasis has targeted its eradication by 2020. Available information showed that the disease is endemic in Ogun State, Nigeria. However, Ado-Odo/Ota Local Government Area has never been part of any known intervention for control of the disease despite the reported cases in the area. This study was conducted to assess the prevalence o...
ABSTRACT The infestation of cashew by Analeptes trifasciata is on the increase and this poses serious threat to cashew cultivation in Nigeria. Base-line information on the distribution and behavioural ecology of A. trifasciata in Nigeria is needed for its control. This study was conducted to provide more information on the morphology, distribution and behavioural ecology of A. trifasciata in Nigeria. A survey of the geographical spread of A. trifasciata infestation was conducted in 25 cashew ...