Research Papers/Topics in Zoology

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...

Isolation And Identification Of Mycotoxigenic Fungi In Maize In Narok Town, Kenya

AbstractThe aim of this study was to identify the occurrence of fungal contamination in different samples of corn (zea mayes) grains in Narok Town. A total of 30 samples were analyzed by direct plating method on a quarter strength potato dextrose agar and focusing on mycotoxigenic fungi.pure cultures of Aspergillus isolates were sub cultured and transferred onto differential media; malt extract agar, czapek yeast extract and czapek dox agar for species identification. The colony were purified...

Aspects Of The Biology Of Apis Mellifera Adansonii (1758) (Hymenoptera Apidae Apoidea) With Emphasis On Honey And Beeswax Production

ABSTRACT This study was on aspects of the biology of Apis mellifera adansonii (1758) (Hymenoptera: Apidae: Apoidea) with emphasis on honey and beeswax production. Apis mellifera adansonii was identified and its life cycle stages were studied including the effect of the age of its queen on rate of brood production. Effects of ambient temperature, relative humidity and sugar syrup on colonies of A. mellifera adansonii in both dry and wet seasons were studied. During this study, Galleri...

Effect Of Physicochemical Factors And Dyke On Conservation Of Oreochromis Esculentus And Oreochromis Variabilis In Lake Kanyaboli, Kenya

ABSTRACTLake Victoria witnessed mass extinction of native fish species that coincided with introductions of Lates niloticus and Oreochromis niloticus about five decades ago. Small populations of O. esculentus and O. variabilis that are locally extinct in L. Victoria are found in Lake Kanyaboli, a satellite lake of L. Victoria. L. Kanyaboli thus has potential to serve as a refugium where cichlid relics are protected from the invasive L. niloticus. However, the status and thus factors that may ...

Co-Infection Of Salmonella Typhi And Soil-Transmitted Helminths And Antimicrobial Profiles In Individuals Attending Ukwala Sub-County Hospital, Kenya

ABSTRACTGastrointestinal infections, such as soil-transmitted helminths (STHs) and Salmonella typhi infection, are a major cause of morbidity and mortality globally. In rural areas of Kenya, 9.1 million people are at risk of STHs infection with Western Kenya having the highest burden of both STH and S. typhi infection. Siaya County is more prone to S. typhi and STHs infection with Ukwala hospital records estimating the burden of infection at 30%. Given that STHs cause intestinal ulcers that m...

Habitat Use And Ecological Carrying Capacity For The Eastern Black Rhinoceros (Diceros Bicornis Michaeli) In Ruma National Park, Kenya

ABSTRACTThe population of black rhinoceros has declined in African range states since 1960s due to poaching and habitat loss. In Kenya the species population declined from an estimated 20,000 in 1970 to less than 500 animals by 1990. However, through increased security and translocation, Kenya has witnessed a modest increase in population of this critically endangered species. The current population size is 623. Kenya like other range countries conserves black rhinoceros sub-populations as a ...

Preventive Aspects Of Malaria In Pregnancy In Badagry Local Government Area Of Lagos State, Nigeria

ABSTRACT The study focused on the Preventive aspects of malaria in pregnancy in Badagry Local Government Area, one of the 20 LGAs in Lagos State in Southwestern Nigeria. The objectives of the study were to determine the knowledge, attitude and practices of the community on malaria; determine the effectiveness of Intermittent Preventive Treatment in pregnancy (IPTp) using Sulfadoxine-pyremethamine (SP) [IPTp-SP] in the prevention of malaria; and ascertain the safety of SP during pregnanc...

Evaluation Of Antiplasmodial Activities Of Chloroquine Encapsulated Heparin-Functionalized Solid Lipid Nanoparticles

ABSTRACTChloroquine was the mainstay of antimalarial chemotherapy because of its safety profile, effectiveness and the relatively cheap cost. However, the emergence of chloroquine-resistant Plasmodium falciparum parasites has rendered this drug ineffective in most regions where malaria is endemic. Most antimalarial drugs that act through blood - stage - specific mechanism are no longer effective due to the rapid emergence of drug resistance while the costs of development of new drugs continue...

Physiological Adaptations To Aestivation And Osmotic Regulation Of The African Lungfish, Protopterus Annectens (Owen) Of Anambra River, Nigeria

ABSTRACT Physiological adaptations to aestivation and osmotic regulation of the African lungfish, Protopterus annectens (Owen, 1839) (Lepidosirenidae) of Anambra River, Nigeria (Lat. 50 42‟ & 70 40‟N and Long. 60 30‟ & 70 42‟E) were investigated. Some physico-chemical parameters of Anambra River and aestivation habits of P. annectens in the river and its flood plains were also determined, as well as the seasonal changes in gonadosomatic and hepatosomatic indices, condition f...

Induced Mutation Studies For Crop Improvement In Cowpea (Vigna Unguiculata (L.) Walp.)

ABSTRACTElite cowpea varieties IT84E-124 and Vita 7 of the International Institute for Tropical Agriculture, Ibadan, were exposed to varying doses of chemical and physical mutagens. Optimum doses of 10mm EMS for 6 hours and 0.1mM and 1.0mm NaN, for 2 hours, determined from seedling growth tests, and 100R and 200R gamma radiation were applied to seed samples of cach genotype. A total of 2000 seeds from each cultivar/treatment were planted. The suitability and efficacy of the treatment re...


1 - 15 Of 171 Results