The threat to wildlife population is attributed to various anthropogenic activities. The main objective of this study was to identify the influence of fragment size on the population density of rodents in the study ar...The threat to wildlife population is attributed to various anthropogenic activities. The main objective of this study was to identify the influence of fragment size on the population density of rodents in the study area. Fourteen (14) out of forty (40) fragments existing in the area were randomly sampled. The parameters used for the study were number, size of fragments and the corresponding population distribution of rodents in the study area. Fifty hunters in the area were also interviewed. The fragments were stratified into first, second and third order fragments on the basis of their sizes and randomly selected for the study. Indirect method of wildlife census was carried out through the observation of droppings, trail or tract, burrows, eating habits and noise. Fragment growth rate was 18 to 40 (87.5%) in 7 years. Anthropogenic perturbations in the form of cultivation of permanent cropland, settlement expansion, bush burning, timber exploitation and new settlements in areas previously thinly settled or not accessible to outsiders have resulted in disjointed ecosystems. The population density of rodents correlated with fragment size was highly significant ((P < 0.05) r = 0.9). It was then concluded that fragment size greatly influenced the population and diversity of rodent species. It was recommended that the remaining large fragments in the study area should be protected by law from further fragmentation.展开更多
Estimating stature by developing linear regression equations which incorporate the features of fragmented body parts or human skeletal remains has been employed by many forensic anthropologists to establish the identi...Estimating stature by developing linear regression equations which incorporate the features of fragmented body parts or human skeletal remains has been employed by many forensic anthropologists to establish the identity of victims of mass disaster although all formulas are ethnic,age,and gender specific.The study is aimed at using the percutaneous tibia length(PCTL)to deriving a specific regression equation formula which could be used to estimate the stature of adult indigenes of Bekwara ethnic group in Cross River State.A total number of 600 subjects within the age range of 21–45 years were recruited randomly for this research(300 males and 300 females).Observed height and PCTL were measured using the standard anthropometric technique,respectively.Stature was estimated from PCTL using simple regression analysis.On analysis of the data,the mean PCTL for male was found to be 43.60±2.31 cm while that of female was 42.55±2.83 cm.The observed height was 165.80±6.88 cm and 156.70±6.06 cm for male and female,respectively.Statistical analysis showed that the male values of the measured parameters were significantly higher than the corresponding female values.The linear regression equations derived for male and female for the estimation of height using the PCTL was found to be 5.289(PCTL)+(−64.78)and 4.230(TL)+(−23.28),respectively.It was concluded that stature can be estimated using the length of an intact mutilated leg.Thus,the data of this study are recommended in anthropological studies for stature estimation among the ethnic group under study.展开更多
Background:Buruli ulcer(BU),also known as Mycobacterium ulcerans disease,is the third most common mycobacterial disease worldwide.Although BU disease has been diagnosed among Nigerians in neighbouring West African cou...Background:Buruli ulcer(BU),also known as Mycobacterium ulcerans disease,is the third most common mycobacterial disease worldwide.Although BU disease has been diagnosed among Nigerians in neighbouring West African countries,data on the burden of the disease in Nigeria itself are scanty.This study aimed to assess the magnitude and epidemiology of BU in the South South region of Nigeria.Methods:We conducted a cross-sectional survey in the Ogoja territory(comprising 31 communities).We undertook sensitisation programmes centred on BU in 10 of the communities.Participants were asked to identify community members with long-standing ulcers,who were then invited for evaluation.We also contacted traditional healers to refer their clients who had non-healing ulcers.All suspected cases had a full clinical evaluation and laboratory testing.Confirmed cases were given treatment in a referral hospital in the territory.Results:We diagnosed 41 clinical BU cases;36(87.8%)of which were confirmed by quantitative polymerase chain reaction(qPCR).These 36 PCR-confirmed cases were diagnosed in a total population of 192,169 inhabitants.Therefore,the estimated crude prevalence of BU was 18.7 per 100,000 population,varying from 6.0 to 41.4 per 100,000 in the districts surveyed.The majority(66.7%)of the cases were females.About 92%of the BU lesions were located on the patients’extremities.No differences were observed between the sexes in terms of the location of the lesions.The age of the patients ranged from four to 60 years,with a median age of 17 years.All 35(100%)patients who consented to treatment completed chemotherapy as prescribed.Of the treated cases,29(82.9%)needed and received surgery.All cases healed,but 29(82.9%)had some limitations in movement.Healing with limitations in movement occurred in 18/19(94.7%)and 8/10(80.0%)of patients with lesions>15 cm(Category III)and 6–15 cm in diameter(Category II),respectively.The median duration of treatment was 130(87–164)days for children and 98(56–134)days for adults(p=0.15).Conclu展开更多
文摘The threat to wildlife population is attributed to various anthropogenic activities. The main objective of this study was to identify the influence of fragment size on the population density of rodents in the study area. Fourteen (14) out of forty (40) fragments existing in the area were randomly sampled. The parameters used for the study were number, size of fragments and the corresponding population distribution of rodents in the study area. Fifty hunters in the area were also interviewed. The fragments were stratified into first, second and third order fragments on the basis of their sizes and randomly selected for the study. Indirect method of wildlife census was carried out through the observation of droppings, trail or tract, burrows, eating habits and noise. Fragment growth rate was 18 to 40 (87.5%) in 7 years. Anthropogenic perturbations in the form of cultivation of permanent cropland, settlement expansion, bush burning, timber exploitation and new settlements in areas previously thinly settled or not accessible to outsiders have resulted in disjointed ecosystems. The population density of rodents correlated with fragment size was highly significant ((P < 0.05) r = 0.9). It was then concluded that fragment size greatly influenced the population and diversity of rodent species. It was recommended that the remaining large fragments in the study area should be protected by law from further fragmentation.
文摘Estimating stature by developing linear regression equations which incorporate the features of fragmented body parts or human skeletal remains has been employed by many forensic anthropologists to establish the identity of victims of mass disaster although all formulas are ethnic,age,and gender specific.The study is aimed at using the percutaneous tibia length(PCTL)to deriving a specific regression equation formula which could be used to estimate the stature of adult indigenes of Bekwara ethnic group in Cross River State.A total number of 600 subjects within the age range of 21–45 years were recruited randomly for this research(300 males and 300 females).Observed height and PCTL were measured using the standard anthropometric technique,respectively.Stature was estimated from PCTL using simple regression analysis.On analysis of the data,the mean PCTL for male was found to be 43.60±2.31 cm while that of female was 42.55±2.83 cm.The observed height was 165.80±6.88 cm and 156.70±6.06 cm for male and female,respectively.Statistical analysis showed that the male values of the measured parameters were significantly higher than the corresponding female values.The linear regression equations derived for male and female for the estimation of height using the PCTL was found to be 5.289(PCTL)+(−64.78)and 4.230(TL)+(−23.28),respectively.It was concluded that stature can be estimated using the length of an intact mutilated leg.Thus,the data of this study are recommended in anthropological studies for stature estimation among the ethnic group under study.
基金funded by Kindermissionswerk“Die Sternsinger”(Stephanstraße 35,D-52064 Aachen,Germany).
文摘Background:Buruli ulcer(BU),also known as Mycobacterium ulcerans disease,is the third most common mycobacterial disease worldwide.Although BU disease has been diagnosed among Nigerians in neighbouring West African countries,data on the burden of the disease in Nigeria itself are scanty.This study aimed to assess the magnitude and epidemiology of BU in the South South region of Nigeria.Methods:We conducted a cross-sectional survey in the Ogoja territory(comprising 31 communities).We undertook sensitisation programmes centred on BU in 10 of the communities.Participants were asked to identify community members with long-standing ulcers,who were then invited for evaluation.We also contacted traditional healers to refer their clients who had non-healing ulcers.All suspected cases had a full clinical evaluation and laboratory testing.Confirmed cases were given treatment in a referral hospital in the territory.Results:We diagnosed 41 clinical BU cases;36(87.8%)of which were confirmed by quantitative polymerase chain reaction(qPCR).These 36 PCR-confirmed cases were diagnosed in a total population of 192,169 inhabitants.Therefore,the estimated crude prevalence of BU was 18.7 per 100,000 population,varying from 6.0 to 41.4 per 100,000 in the districts surveyed.The majority(66.7%)of the cases were females.About 92%of the BU lesions were located on the patients’extremities.No differences were observed between the sexes in terms of the location of the lesions.The age of the patients ranged from four to 60 years,with a median age of 17 years.All 35(100%)patients who consented to treatment completed chemotherapy as prescribed.Of the treated cases,29(82.9%)needed and received surgery.All cases healed,but 29(82.9%)had some limitations in movement.Healing with limitations in movement occurred in 18/19(94.7%)and 8/10(80.0%)of patients with lesions>15 cm(Category III)and 6–15 cm in diameter(Category II),respectively.The median duration of treatment was 130(87–164)days for children and 98(56–134)days for adults(p=0.15).Conclu
