Evaluation of Black-Headed Oriole Oriolus brachyrhynchus (Swainson, 1837) as Bioindicator of Arsenic Contamination Using Atomic Absorption Spectrometry (AAS)
Journal Title: Journal of Agriculture and Ecology Research International - Year 2017, Vol 12, Issue 3
Abstract
An evaluation of Black-headed oriole Oriolus brachyrhynchus as bioindicator of arsenic contamination using Atomic Absorption Spectrometry (AAS) was carried out to determine the bioaccumulation level of arsenic concentration in the liver, skin, heart, adult feathers, nestling feathers, and eggs so as to ascertain which of these parts harbours more contaminants. A total of 30 birds were trapped from different farm locations in Buruku, Daudu and Adega using mist net and 150 of parts were obtained. A total of 9 eggs and 9 nestling were also collected from different nest from the study locations for investigation. We also examined the crops foraged on, and the water and soil of the environment. Summary statistics of Arsenic concentration (mg/kg) in selected parts were expressed using descriptive statistics and correlation. Arsenic concentration in feathers of the said species ranged between 1.29- 2.49 mg/kg with Daudu having the highest mean of 1.84 ± 0.42 mg/kg, whereas Buruku and Adega have below detection limit of 0.001 µg/L. Arsenic concentration in the liver of Black headed oriole ranged between 0.28 – 1.57 mg/kg with the birds in Daudu having the highest mean of 0.70 ± 0.47 mg/kg. Arsenic concentration in the skin ranged between 0.19 – 0.79 mg/kg with the birds in Daudu having the highest mean of 0.46 ± 0.21 mg/kg. Consequently arsenic concentration in carcass of Black headed oriole ranged between 0.28 – 3.42 mg/kg with the birds in Daudu having the highest mean of 2.47 ± 0.94 mg/kg. In addition, arsenic concentration in eggs and nestling feathers ranged between 0.04 – 0.05 mg/kg and 1.29 – 2.22 mg/kg with Daudu having highest arsenic concentration in both parts with mean of 0.05± 0.01 mg/kg and 1.63 ± 0.51 mg/kg respectively. Arsenic content of maize obtained from Daudu ranged between 0.46 - 0. 66 mg/kg with Daudu having the highest arsenic content with mean of 0.53 ± 0.11 mg/kg. In addition, arsenic content of soil ranged between 2.95 – 23.98 mg/kg with mean of 23.83 ± 0.14 mg/kg. Arsenic content of water ranged between 0.02 – 0.06 mg/kg. Therefore Daudu has the highest arsenic content in soil and water as a component of biological pathway for both crop plants and birds. The concentration of arsenic in different parts of the birds is a function of different time of exposure of individual bird trapped from different location, while arsenic levels in the feathers is an indicator of diet. It is imperative to study the potential mechanism by which arsenic cause diseases in wild birds which may be applicable to conservation of bird species to promote the conservation of wild birds and other animals especially species that are endanger and threaten. Therefore, analysis of mercury, lead, chromium and cadmium should be carried out to determine their accumulation in organs of Black headed oriole since these communities are agrarian communities.
Authors and Affiliations
F. A. Egwumah, P. O. Egwumah, B. T. Tyowua
Keywords
Related Articles
- EP ID EP317203
- DOI 10.9734/JAERI/2017/35338
- Views 129
- Downloads 0
An Inventory of Flora in Um Dom Island (Khartoum State), Sudan
This study documents and updates the flora information of Um Dom Island, Khartoum State, Sudan. Herbarium specimens were prepared and deposited in the Herbarium of the Faculty of Science, University of Khartoum. Identifi...
Nutritional Composition of African Giant Land Snail (Archachatina marginata) Fed on Diet from Different Protein Sources
The study of nutritional composition of African giant land snail (Archachatina marginata) fed on diet from different protein sources: soya bean meal, fish meal and blood meal with Pawpaw leaves and pumpkin leaves serving...
Comparative Evaluation of the Species Richness and Diversity of Three Parallel Forest Ecosystems in South-Eastern Nigeria
The comparative evaluations of the species diversity of three parallel forest ecosystems were evaluated to ascertain and establish the differences in species diversity and abundance. The Point Center Quarter method of pl...
Assessment of Farmers’ Perception of Agroforestry Practices in Jhenaidah District of Bangladesh
Aims: The main objective of this study was to investigate and analyze the farmers’ attitude towards agroforestry, the reasons for adoption of agroforestry by farmers and the problems being faced by them in the Jhenaidah...
Seasonal Changes in Field-to-storage Insect-pests of Maize and Implications for Their Control in South-Western Cameroon
Aims: To identity and assess the seasonal population dynamics of field-to-store insect-pests of maize at various harvesting dates in South-western Cameroon. Methodology: Maize was planted mid-monthly during the rainy sea...