Prevalence of Ife Virus Infection in Wild Rodents and Birds from Zaria, Nigeria

Ezeifeka, G. O.; Umoh, J. U.; Ezeokoli, C. D.; Ezealor, Augustine U.

doi:10.7589/0090-3558-23.4.663

Cited by 6 publications

(6 citation statements)

References 3 publications

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“…In the moister (than our present study area) Guinea and derived Savannah areas of Nigeria, relative numbers of G. gambianus to other rodents were very low (Demeter, 1981;Ezeifeka et al, 1987). It appears G. gambianus has not yet completed its inroads into more vegetated and humid zones, further south, beyond its preferred drier Savannah and Sahel zones.…”

Section: Population Densitiesmentioning

confidence: 48%

“…Although not specifically assessing population densities in his work, Demeter (1981) recorded barely 20 gerbilline rodents, approximately 16% of all species collected within five kilometers over a period of two months at the Yankari Game Reserve, northern Nigeria. Working in the vicinity of Zaria, the same vegetation zone as that of Demeter (1981), Ezeifeka et al (1987), reported only four captures for G. gambianus out of 183 rodents, representing 2% of all captures. Several measures of rodent population sizes have used one estimator method or the other, e.g., CMR or removal methods.…”

Section: Introductionmentioning

confidence: 97%

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Demographic response of the Gambian Gerbil to seasonal changes in Savannah fallow fields

Rabiu

Rose

2019

Folia Oecologica

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The Savannah gerbil, Gerbilliscus gambianus (Muridae: Gerbillinae) is important to the ecological relations of the dry grassland ecosystem of West Africa, as well as, being a zoonotic agent of human diseases and potential crop pest. We examined the impact of seasonal changes on the population dynamics of G. gambianus in northern Nigeria, by completing population estimates using capture–mark–recapture (CMR) and indirect population density indices (PDI) methods. The latter included fecal pellet counts and limited spotlightening. During 1990–1992 we collected both CMR and PDI data, and established their relationship by regression, thus calibrating the PDI values to CMR estimator. We also completed a separate, PDI only, study during 2015–2017, and estimated monthly densities indirectly by toning the PDI values to population sizes in the CMR estimator. The lowest declines (<20 gerbils ha−1) were in mid rains (July–August), and highest increases (>90 gerbils ha−1) were after the rains (October–January). Seasonal effects on densities were significant during 1990–1992 but not during 2015–2017. There were improved survival rates for both adults (0.95) and young (0.83), adult capture probability (0.56), and mean monthly recruitment of young (23) after the rains. There was no significant change in the overall population dynamic pattern of G. gambianus over a 25-year period. Because G. gambianus did not maintain colonies inside farmlands cultivated by rain or irrigation, and its tendency for large population drops in mid-rains, we are in doubt of its potential as crop pest in northern Nigeria.

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Section: Population Densitiesmentioning

confidence: 48%

Section: Introductionmentioning

confidence: 97%

Demographic response of the Gambian Gerbil to seasonal changes in Savannah fallow fields

Rabiu

Rose

2019

Folia Oecologica

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“…Ajayi et al (2007) investigated four groups of helminthes; trematode, cestode, nematode and acanthocephala. Others worked on intestinal helminth of Cricetomys gambianus, C. ansorgei and C. emini included Winfield, (1933) and Ezeifeka et al (1987), who discovered Nematosproides dubrius in the duodenum and scantly on lower small intestine amongst others.…”

Section: Introductionmentioning

confidence: 99%

Incidence of gastrointestinal helminthes in emin’s pouch rat (Cricetomys emini Wroughton) in the semi-arid zones of katsina state

Bawa¹,

Liadi²,

Jabbi

2014

Egyptian Academic Journal of Biological Sciences, B. Zoology

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A survey was carried out to determine the multiple incidence and compositions of gastrointestinal/helminth parasites of Emin's Pouched Rat, Cricetomys emini that inhabit the Semi-Arid Areas of Katsina State, and to analyze the parasitic load of these parasites. Out of the eighty six (86) trapped and caught pouched rats, 57% were females and 48% males, of immature sub-adult individuals per sex and were examined base on the parasites incidence and multiplication rate. The following parasites were detected in accordance with the gastrointestinal gut parts: In the alimentary canal found are the Cestodes: Hymenolepis diminuta (39.53%) and Rodentolopis fraterna (25.58%); found in the ileum and lumens of large intestine are Nematodes, Heterakis spumosa (36.05%) and Ascaridia collumbae (30.23%). Similarly, Capillaria collumbae (18.60%) was detected in the ileum/small intestine. Found in the caecum and rectums were also nematodes: Aspiculuris sp (11.63%), Trichuiris trichuira (3.49%) and Strongyloides sp (5.81%). The nematodes were the most prevalent followed by cestodes and Trichuiris trichuira as the least incident species. The helminthes showed significant difference (P>0.05). Acanthocephalans and flukes (Trematodes) and a few of minute intestinal worms were not recognized during the practical analysis. Proper sanitation need to be adapted in the Saharan and the Semi-Arid Zones so as to minimize the population of these zoonotic helminthes in order to yield healthy living wild life/muroid rodents.

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“…In this study the transmission of Ife virus The widespread nature of Ife virus infection in by Aedes aegypti, which is among the commonest animals and man in Nigeria (Ezeifeka et al, 1987, mosquito species associated with virus transmission 1989a, 1990), further suggests the possible in Nigeria (Anon, 1969) was investigated, involvement of a vector in the virus transmission 89 G.O. In this study the transmission of Ife virus The widespread nature of Ife virus infection in by Aedes aegypti, which is among the commonest animals and man in Nigeria (Ezeifeka et al, 1987, mosquito species associated with virus transmission 1989a, 1990), further suggests the possible in Nigeria (Anon, 1969) was investigated, involvement of a vector in the virus transmission 89 G.O.…”

Section: Introductionmentioning

confidence: 99%

Experimental transmission of Ife virus by Aedes aegypti mosquitoes

Ezeifeka¹,

Umoh²,

Ezeokoli

et al. 1993

Int. J. Trop. Insect Sci.

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Transmission of Ife virus by Aedes aegypti mosquitoes was investigated. Mosquitoes were experimentally infected by feeding on viraemic mice or on infected mouse brain suspended in defibrinated chick blood. Normal infant mice were exposed to infected mosquitoes after predetermined extrinsic incubation period. Ife virus persisted for only 1 day in mosquitoes that fed on viraemic mice and for 5 days in those that fed on infected brain/blood suspension. Virus was not recovered in infant mice exposed to infected mosquitoes. However, there was serologkal evidence of virus transmission manifested as the presence of complement fixing antibody against Ife virus in mice exposed after 2 days and 2-5 days extrinsic incubation periods to mosquitoes infected by feeding on viraemic mice and by feeding on infected brain/blood suspension respectively. This transmission was considered mechanical in view of the short virus persistence and extrinsic incubation periods. Resume-La transmission du virus d'Ife par Ies moustiques de 1'espece Aedes aegypti a ttt etudtee. Ces moustiques ont ete experimentalement Infectes en Ies nourrisant de souris viraemiques, ou de matiere cerebrale (cervelie) de souris infectees dans une suspension de sang defibrine de poulet. Des jeunes souris ont ete exposees aux moustiques infectes apres la periode d'incubation extrinsique prldeierminee. Dans Ies moustiques nourris de souris viraemiques, le virus d'Ife n'a persists qu 'un Jour, contre cinq jours pour ceux nourris de la suspension Infectee cervelle/sang. Aucun virus n'a ete retrouve dans Ies jeunes souris exposees aux moustiques infectes. Cependant, on a pu trouver une evidence de transmission du virus, ceci se manifestant par la presence d'anticorps complementalres contre le virus d'Ife dans Ies souris exposees durant des periodes d'incubation extrinseques de 2 jours et de 2 a 5 jours aux moustiques infected en Ies nourrisant de souris viraemiques et de la suspension infectee cervelle/sang respectivement. Cette transmission est considered comme etant mecanlque a cause de Ies courte duree de la persistence et des periodes d'incubation extrinseques.

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Prevalence of Ife Virus Infection in Wild Rodents and Birds from Zaria, Nigeria

Cited by 6 publications

References 3 publications

Demographic response of the Gambian Gerbil to seasonal changes in Savannah fallow fields

Demographic response of the Gambian Gerbil to seasonal changes in Savannah fallow fields

Incidence of gastrointestinal helminthes in emin’s pouch rat (Cricetomys emini Wroughton) in the semi-arid zones of katsina state

Experimental transmission of Ife virus by Aedes aegypti mosquitoes

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