Biomonitoring of heavy metals in birdsinIran in relation to trophic levels
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 11
Abstract
This study presents concentrations of some heavy metals (Cd, Pb, Cu and Zn)in tail feathers of57 birds (10families) in Shadegan wetland in southwest Iran. Concentrations of heavy metals weremeasured by Atomic Absorption Spectrometry (AAS) (Fillips, Model PU 9400). Concentrations of metals were studied in relation to trophic levels.In this study, bird species were classified in five groups of diet habitat namely herbivorous, omnivorous, invertebrate predators, piscivorous and carnivorous.We found a significant difference between Cd concentration across carnivores and omnivores birds with other trophic levels (p=0.00). Statistically significant difference was seen in Pb concentration between herbivores and other groups (p=0.00). Moreover the results showed that the statically significant differenceobtained between Cu concentration in feathers of herbivores and other trophic levels. But there was no significant difference for Znin trophic levels. It seems the carnivores and omnivores species are useful bioindicators for Cd and herbivorous birds are suitable birds for Pbpollution in Shadegan wetland.
Authors and Affiliations
Okati Narjes| Department of Environmental Science, Faculty of Natural Resources, University of Zabol, Zabol, Sistan and Baluchistan, IRAN, narjes_okati@yahoo.com
Organizational entrepreneurship predictions based on components of cultural intelligence Ang's four factors
The present study was conducted to Analysis of the relationship between entrepreneurship and cultural intelligence components Ang's four factors (cognitive, met cognitive strategies, behavioral). For this purpose, 273 ma...
Examining the prevalence of musculoskeletal disorders in workers working in the fields and related days market of Tehran organization Municipality in 2014 with the aim of identifying risk factors affecting on the incidence of these disorders
Musculoskeletal Disorders (MSDs) are the most common occupational diseases in modern societies. Poor posture, defective working stations, long working hours, high physical work, transport and manual handling of heavy loa...
Somatotypes of young male athletes and non-athlete students
There is a considerable corpus of evidence indicating that athletes succeeding in certain sports have distinctive body shapes that differ according to the demands of the type of sports and competitive level. The aim of t...
Principles of Writing Paragraphs in Persian
Important but ignored issue of writing paragraph in Persian is somehow so ingrained with minds of writers which are seen clumsily applied in writing. Of course its application is sometimes incorrect and it is attempted t...
Evaluation performance index and analysis of accident’s cost in a copper mines
According to the International Labor Organizations annual 2 million and every 15 seconds one person in work-related accidents and illnesses are killed. The mortality rate in America's mine is 6 times more than other indu...