Research Papers/Topics in Zoology

An Evaluation Of Dracunculiasis And The Intervention Strategies Adopted For Its Eradication In Borno State, Nigeria

ABSTRACT Interventions adopted for the eradication of dracunculiasis in Borno State were evaluated between July 2003 and June 2004 to assess the feasibility of the 2009 target date set for the eradication of guinea worm. Data on cases in Nigeria; North east zone, and Borno State from 1995 - 2007 were obtained from Nigeria Guinea Worm Eradication Programme.  Primary data on the cases occurring during the 2003/2004 were obtained through active surveillance. The various intervent...

Effect of pineapple (ananas comosus l. Merrill) and papaya (carica papaya l.) Fruit extracts on sericin removal from silk moths cocoons in kenya

ABSTRACT Sericulture (Silk farming) is the rearing of silk moths for the production of raw silk. Silk farming originated from China where it was secretly practiced for many years before spreading to other parts of the world. Silk moths are grouped into mulberry silk moths (domesticated) and wild silk moths. Silk moth cocoon has a double filament made of insoluble protein known as fibroin which is embedded in a water soluble protein called sericin. Prior to processing cocoons, are boiled...

Heavy Metal And Organochlorine Pollutants In Tissues Of Marine Fauna Along The Coast Of Mombasa Island - Kenya

ABSTRACT Marine pollution is increasingly becoming a problem along the Kenyan coast. ' I Heavy metals and organochlorine pollutants have the potential to damage the delicate marine ecosystem with the result that the country's important foreign exchange earner - tourism - could seriously be affected. This study aimed at assessing the levels of cadmium, lead, copper, zinc, manganese, iron and titanium using Energy Dispersive X-ray Fluorescene (EDXRF) and Atomic Absorption Spectroscopy (A...

Diversity and abundance of lice on Speckled Mousebird Colius striatus and Red-capped Lark Calandrella cinerea in two ecologically different habitats in central Kenya

ABSTRACTParasites play an important role in ecosystems including shaping the populations and communities of their hosts. Majority of arthropod parasites transmit vector-borne zoonotic diseases, some of which are transmissible to humans and livestock. Birds are a host to a variety of arthropod parasites. Despite their importance, parasites continue being excluded in most ecological inventories. For example, the diversity of avian fauna in Kenya is fairly well known yet little is known about th...

Raised Iron Levels in Wet- ground Vigna unguiculata and Capsicum frutescens using Domestic Grinding Techniques

ABSTRACT The biosafety of commonly used domestic grinding techniques was investigated; the effects of attrition mills using new (attrition mill 1) and old (attrition mill 2) plates, wooden mortar and pestle, grinding stone and electric blender on iron content of wetground staple foods,  Vigna unguiculata (cowpea) and Capsicum frutescens (pepper) were examined in this study. Attrition mill 1 was in use 4 weeks prior to this study while the attrition mill 2 had newly installed g...

Molecular Analysis Of Mechanisms And Identification Of Factors Of Pyrethroid Resistance In Anopheles Gambiae Sensu Lato In Southwestern Nigeria And Southern Benin Republic

ABSTRACT The development of resistance to insecticides by Anopheles mosquitoes continues to threaten the success of malaria control programmes in West Africa. Local data on mechanisms and factors causing resistance in the region are scanty. This study was designed to investigate the environmental factors and mechanisms implicated in resistance to pyrethroids by Anopheles gambiae in southwestern Nigeria and southern Benin Republic.  Larvae of Anopheles mosquito were collected in 20...

PREVALENCE AND INTENSITY OF NEMATODE PARASITES OF Poecilia reticulata PETERS (1859) IN FOUR WASTEWATER DRAINS OF LAGOS STATE, NIGERIA

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 determinin...

Investigating The Aquatic Weeds On The Westlake Wetland: Detrimental Effects And Management Options

ABSTRACTThe aquatic weeds on the Westlake wetland at Zandvlei (Cape Town, South Africa)were investigated in terms of their detrimental effects, and the biotic and abioticconditions associated with their nuisance growth. Eichhornia crassipes was the mostproblematic of the weeds, both from a human perspective and in its effect on thesystem, and it appears to out-compete the initially more abundant Ceratophyllumdemersum and Azolla filiculoides after disturbances such as clearing and flood...

Relationships Between Invertebrate Detritivores And Gut Bacteria In Marine Systems •

ABSTRACTAspects of the feeding strategies and digestive invertebrate-microbial interactions oftwo saltmarsh thalassinid detritivores, the mudprawn Upogebia africana (Ortmann)and the sandprawn Callianassa kraussi Stebbing were examined. Resources availablein their respective habitats were investigated together with the feeding apparatus,diet and digestive enzymes necessary for hydrolysis of refractory compounds ofdetritus. U. africana inhabits the upper reaches of Langebaan lagoon (Gee...

Evaluation Of A Rapid Immune Chromatographic Card Test For Plasmodium Falciparum In Ibadan, Nigeria

Summary This short report describes the results of a rapid; simple and cost effective immuno diagnostic test for malaria in Ibadan, Nigeria. A total of 77% patients presenting at the children outpatient clinic, University College Hospital with malaria symptoms were screened for malaria parasites by microscopy using Giemsa stain and by the immuno chromatographic card test. The immunodiagnostic test had a sensitivity of 93.1 % and a specificity of 95.8%, making a gog,d alternative for...

MOLECULAR ANALYSIS OF MECHANISMS AND IDENTIFICATION OF FACTORS OF PYRETHROID RESISTANCE IN ANOPHELES GAMBIAE SENSU LATO IN SOUTHWESTERN NIGERIA AND SOUTHERN BENIN REPUBLIC

ABSTRACTThe development of resistance to insecticides by Anopheles mosquitoes continues to threaten the success of malaria control programmes in West Africa. Local data on mechanisms and factors causing resistance in the region are scanty. This study was designed to investigate the environmental factors and mechanisms implicated in resistance to pyrethroids by Anopheles gambiae in southwestern Nigeria and southern Benin Republic. Larvae of Anopheles mosquito were...

Application Of A Multidisciplinary Approach To The Systematics Of Acomys (Rodentia: Muridae) From Northern Tanzania

 Abstract The systematic status and geographic distribution of spiny mice of the genus Acomys I. Geoffroy, 1838 in northern Tanzania is uncertain. This study assesses the systematic and geographic distribution of Acomys from northern Tanzania using a multidisciplinary approach that includes molecular, cytogenetic, traditional and geometric morphometric analyses, and classical morphology of the same individuals. The molecular analysis was based on 1140 base pairs (bp) of the mitocho...

Exploratory Behaviour And Food Retrieval Habit Of Amitermes Evuncifer Silvestri (Isoptera, Termitidae Temitinae)

ABSTRACT. The study revealed that there was a quantitative recruitment in colonies of Amiternes evuncifer, whenever food was discovered by the scouting foragers. Discovered food stimulated the termites to accelerate their running speed, to and from the food source. Increased trail-laying activity, accelerated movement and carrying of food by the returning workers facilitated recruitment of other confederates from their nest. These activities equally directed the recruited termites to...

Response Of Benthic Fauna To Mangrove Degradation And Restoration In Gazi Bay - Kenya

bstractThe recovery towards a natural state of a restored Rhizophora mucronata mangroveecosystem was investigated by assessing the sediment physical characteristics, densities,community composition and diversity of benthic macro-endofauna and meio-endofaunafrom a natural, a 10 years reforested, a 5 years reforested and a degraded (clear felled)mangrove ecosystem. The natural forest was used as a reference (baseline state) while thedegraded site was to provide information on the effects of man...


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