Antarctic Skuas as bioindicators of local and global mercury contamination
نویسندگان
چکیده
منابع مشابه
Wading birds as bioindicators of mercury contamination in Florida, USA: annual and geographic variation.
Mercury contamination in wetland biota is often dynamic, difficult to predict, and costly to track. In this paper, we present results from a six-year study of growing feathers of piscivorous birds as monitors of wetland Hg exposure in Florida, USA, wetlands. Between 1994 and 2000, we collected feathers of growing great egret (Ardea alba) nestlings from colonies in the freshwater Everglades of s...
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Penguins have been recently identified as useful bioindicators of mercury (Hg) transfer to food webs in the Southern Ocean over different spatial and temporal scales. Here, feather Hg concentrations were measured in adults and chicks of all the seven penguin species breeding in the southern Indian Ocean, over a large latitudinal gradient spanning Antarctic, subantarctic and subtropical sites. H...
متن کاملParamount Roles of Wild Birds as Bioindicators of Contamination
Bioindicators are species used to appraise the health conditions of the environment or ecosystem and they are capable of determining the environmental integrity using their functions and populations. In preserving and managing the natural surroundings, it is imperative to monitor the condition of many components of the ecological unit. Under normal circumstance, conservation advocators would be...
متن کاملParamount Roles of Wild Birds as Bioindicators of Contamination
Bioindicators are species used to appraise the health conditions of the environment or ecosystem and they are capable of determining the environmental integrity using their functions and populations. In preserving and managing the natural surroundings, it is imperative to monitor the condition of many components of the ecological unit. Under normal circumstance, conservation advocators would be...
متن کاملLeeches as Sensor-bioindicators of River Contamination by PCBs
The aim of the study was to evaluate the use of leeches of the genus Erpobdella as a means of assessing polychlorinated biphenyl contamination of watercourses. The River Skalice, heavily contaminated with PCBs, was selected as a model. The source of contamination was a road gravel processing factory in Rožmitál pod Třemšínem from which an estimated 1 metric ton of PCBs leaked in 1986. Levels of...
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ژورنال
عنوان ژورنال: Revista Eletrônica Científica da UERGS
سال: 2019
ISSN: 2448-0479
DOI: 10.21674/2448-0479.53.311-317