Glaucous Gulls Sighted at Regina
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چکیده
منابع مشابه
Immune function and organochlorine pollutants in Arctic breeding glaucous gulls.
Organochlorine contaminants (OCs) are known to affect the immune systems of wildlife, and in this study we assessed the relationship between blood concentration of different OCs and measurements relevant to immune status and function in arctic breeding glaucous gulls (Larus hyperboreus). In 1997 and 2001, we counted white blood cells (heterophils and lymphocytes) from blood smears, and in 2000 ...
متن کاملPlastic consumption and diet of Glaucous-winged Gulls (Larus glaucescens).
We analyzed dietary habits and presence of plastic in 589 boluses of Glaucous-winged Gulls (Larus glaucescens) as one of two studies on the impact of plastics on marine life in the US Salish Sea. Volunteers dissected boluses collected (2007-2010) from Protection Island, Washington. Components were separated into 23 food and non-food categories. Plastic was found in 12.2% of boluses, with plasti...
متن کاملPersistent organic pollutants and mercury in dead and dying glaucous gulls (Larus hyperboreus) at Bjørnøya (Svalbard).
Dead and dying glaucous gulls (Larus hyperboreus) were collected on Bjørnøya in the Barents Sea in 2003, 2004 and 2005. Autopsies of the seabirds only explained a clear cause of death for three (14%) of the 21 birds. A total of 71% of the birds were emaciated. Liver and brain samples were analysed for organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl et...
متن کاملMathematical modeling of appendicular bone growth in glaucous-winged gulls.
Development of locomotor activity is crucial in tetrapods. In birds, this development leads to different functions for hindlimbs and forelimbs. The emergence of walking and flying as very different complex behavior patterns only weeks after hatching provides an interesting case study in animal development. We measured the diaphyseal lengths and midshaft diameters of three wing bones (humerus, u...
متن کاملOrganobromine, Organochlorine and Metabolically-Derived Contaminants in Norwegian Arctic Glaucous Gulls: Associations with Whole Body Constituents
Introduction. Monitoring of organohalogens in the glaucous gull (Larus hyperboreus) has been given high priority in Svalbard (Norwegian Arctic). Glaucous gulls are distributed widely in the Arctic and are an important avian scavenger-predator in the marine food web. Thus far among circumpolar arctic seabirds, glaucous gulls from Svalbard are reported to accumulate some of the highest concentrat...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1980
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay4450