Levels of arsenic (As), cadmium (Cd), cobalt (Co), lead (Pb), nickel (Ni), selenium (Se), and vanadium (V) were evaluated in coastal sediments, egg contents, and eggshells of crab plover (Dromas ardeola), bridled tern (Sterna anaethetus), lesser crested tern (S. bengalensis), and western reef heron (Egretta gularis) breeding in the northwestern Persian Gulf. Levels of Cd, Pb, Ni, V, and Se were greater in eggs of terns than in eggs of crab plover, perhaps due to the higher trophic level of terns. Levels of all elements were lower than known effects levels for birds. However, levels of Se in eggs were greater than those known to cause toxic effects in birds. Eggs of terns are ideal for monitoring metal contaminants on the breeding grounds because the bioaccumulation ratios (egg/sediment) of some metals (As, Co, Se) in the eggs of terns are significantly greater compared with those of crab plovers.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00244-014-0084-9 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring the use of gull eggs as bioindicators of phthalate esters exposure.
Environ Res
December 2024
Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Catalonia, Spain. Electronic address:
Plastic pollution and associated plasticizers are a global threat affecting aquatic environments. Phthalates are among the most used plasticizers that can impact on fauna due to their endocrine-disrupting properties. The aim of this study was to investigate the use of eggs of Audouin's gull (Larus audouinii) and yellow-legged gull (Larus michahellis) as biomonitors of phthalate exposure.
View Article and Find Full Text PDFDietary and terrestrial exposure to methoxylated polybrominated diphenoxybenzene contaminants in Great Lakes herring gulls.
Chemosphere
November 2024
Ecotoxicology and Wildlife Health Division, Wildlife and Landscape Directorate, Science and Technology Branch, Environment and Climate Change Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON, Canada; Department of Chemistry, Carleton University, Ottawa, ON, K1S 5B6, Canada. Electronic address:
Methoxylated polybrominated diphenoxybenzenes (MeO-PB-DPBs) are little known contaminants except in North American Great Lakes herring gull tissues and egg samples. MeO-PB-DPBs in gulls originate not via aquatic bioaccumulation pathways but instead likely via transformation of the tetradecabromo-1,4-diphenoxybenzene (TDB-DPB) flame retardant (FR). TDB-DPB was formerly produced as SAYTEX-120 in North America and is still produced in Asia.
View Article and Find Full Text PDFInnovative approach for environmental pollution assessment using seabird eggs: mercury in black-tailed gull (Larus crassirostris) eggs from the Korean islands (2012-2021).
Mar Pollut Bull
December 2024
Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan 15588, Republic of Korea. Electronic address:
Since black-tailed gulls derive energy for egg production around their habitat, analyzing concentration of chemicals in the eggs reveals the local environmental pollution. This is, however, complex due to the diversity of seabird diets across multiple ecosystems. This study determined the influence of food source and trophic position (TP) on the mercury concentration ([Hg]) in eggs and subsequently mitigated these influences by adjusting through [Hg]-TP relationship, thereby enabling spatial and temporal comparisons among individuals.
View Article and Find Full Text PDFLegacy and emergent contaminants in glaucous-winged gull eggs from Canada's Pacific coast: Spatial distribution, temporal trends, and risks for human consumers.
Environ Pollut
December 2024
Department of Natural Resource Sciences, McGill University, Sainte Anne-de-Bellevue, Quebec, H3A 0G4, Canada. Electronic address:
Article Synopsis
- The study analyzed glaucous-winged gull eggs from Canada's Pacific coast from 2008 to 2022, focusing on various contaminants like PFASs, PBDEs, AHFRs, and total mercury.
- Eggs from urban-influenced colonies showed roughly double the contamination levels compared to those from offshore colonies, indicating different environmental exposures.
- While some contaminants showed a decrease due to regulation, others displayed complex trends, and a human health risk assessment found no significant risk for First Nations consumers based on current contaminant levels.
Thermal stress during incubation in an arctic breeding seabird.
J Therm Biol
October 2024
Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen, 2100, Denmark.
Arctic breeding seabirds have experienced dramatic population declines in recent decades. The population of Arctic skuas (Stercorarius parasiticus) nesting on the Faroe Islands, North Atlantic, breed near the southern extent of their breeding range and are experiencing some of the largest declines. This is thought to be caused in part by increased warming due to climate change and thus, it is becoming critical to investigate the proximate and ultimate effects of the thermal environment on parental physiology, behaviour and breeding success.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!