Exploring Health and Disease in Northern Common Eiders in the Canadian Arctic

ARCTIC ◽  
2012 ◽  
Vol 65 (4) ◽  
Author(s):  
N. Jane Harms
Keyword(s):  
Canadian Arctic ◽  
Common Eiders ◽  
Health And Disease

Trace Elements in King Eiders and Common Eiders in the Canadian Arctic

2001 ◽  
Vol 41 (4) ◽  
pp. 491-500 ◽  
Author(s):  
M. Wayland ◽  
H. G. Gilchrist ◽  
D. L. Dickson ◽  
T. Bollinger ◽  
C. James ◽  
...  
Keyword(s):  
Trace Elements ◽  
Canadian Arctic ◽  
Common Eiders

Hepatic trace element concentrations of breeding female common eiders across a latitudinal gradient in the eastern Canadian Arctic

2017 ◽  
Vol 124 (1) ◽  
pp. 252-257 ◽  
Author(s):  
Conor D. Mallory ◽  
H. Grant Gilchrist ◽  
Gregory J. Robertson ◽  
Jennifer F. Provencher ◽  
Birgit M. Braune ◽  
...  
Keyword(s):  
Trace Element ◽  
Latitudinal Gradient ◽  
Canadian Arctic ◽  
Breeding Female ◽  
Element Concentrations ◽  
Common Eiders ◽  
Eastern Canadian Arctic

Sources of variation in endohelminth parasitism of common eiders over-wintering in the Canadian Arctic

Polar Biology ◽  
2018 ◽  
Vol 42 (2) ◽  
pp. 307-315 ◽  
Author(s):  
J. Tourangeau ◽  
J. F. Provencher ◽  
H. G. Gilchrist ◽  
M. L. Mallory ◽  
M. R. Forbes
Keyword(s):  
Canadian Arctic ◽  
Common Eiders ◽  
Sources Of Variation

Contaminants in common eiders (Somateria mollissima) of the Canadian Arctic

2004 ◽  
Vol 12 (4) ◽  
pp. 197-218 ◽  
Author(s):  
Mark L Mallory ◽  
Birgit M Braune ◽  
Mark Wayland ◽  
H Grant Gilchrist ◽  
D Lynne Dickson
Keyword(s):  
Trace Elements ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Canadian Arctic ◽  
Common Eider ◽  
The Arctic ◽  
Adult Bird ◽  
Somateria Mollissima ◽  
Marine Birds ◽  
Common Eiders

Contamination of the Arctic environment by persistent organic pollutants (POPs) and trace elements remains a key concern for local residents as well as wildlife and resource management organizations. The common eider (Somateria mollissima) is a large marine duck that forms an important component of the diet of many Arctic predators, including humans. Although various studies have been carried out to evaluate the role of a few contaminants thought to be of local concern, efforts to assess contaminant residues in eider tissues have not been comprehensive. In this review, we summarize the available information on POPs and trace elements in common eiders across the Canadian Arctic. With the exception of one adult bird collected near Qikiqtarjuaq, Nunavut, eiders had detectable but low concentrations of most POPs, in some cases markedly lower than European eiders, and in all cases far lower than POP levels found in sympatric marine birds. However, common eiders did have elevated concentrations of many trace elements, noticeably cadmium, selenium, and copper, but these were below levels associated with toxicological risk to marine birds. Although the collective evidence suggests that common eiders of the Canadian Arctic may carry elevated levels of some contaminants, there was no evidence that these levels posed a threat to wildlife health. Key words: common Eider, persistent organic pollutants, trace elements, Arctic Canada.

Birds and marine mammals in southwestern Foxe Basin, Nunavut, Canada

Polar Record ◽  
2007 ◽  
Vol 43 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Anthony J. Gaston ◽  
Stephen A. Smith ◽  
Robert Saunders ◽  
G. Ilya Storm ◽  
Jane A. Whitney
Keyword(s):  
Marine Mammals ◽  
Canadian Arctic ◽  
Breeding Phenology ◽  
Southwestern Part ◽  
Bowhead Whales ◽  
Foxe Basin ◽  
New Information ◽  
Common Eiders ◽  
The Status ◽  
Ice Conditions

The southwestern part of Foxe Basin is a little known region of the Canadian Arctic, being difficult to access during the summer because of heavy and unpredictable ice conditions. Surveys of birds and marine mammals in the area were carried out by lightweight expeditions in the summers of 1994 and 1995, using sea-kayaks, as well as a Peterhead boat from the nearest community, at Repulse Bay. The area supports important populations of narwhal, bowhead whales and walrus, as well as significant concentrations of shorebirds, common eiders, black guillemots, and perhaps one third of the world's Thayer's gulls. New information was obtained on the status and abundance of these species and novel observations were made on the feeding ecology and breeding phenology of the gulls.

Drug Induced Changes in Cell Organelles

1968 ◽  
Vol 26 ◽  
pp. 110-111
Author(s):  
Sarah A. Luse
Keyword(s):  
Clinical Medicine ◽  
Cell Organelles ◽  
Riboflavin Deficiency ◽  
Drug Induced ◽  
New Era ◽  
Health And Disease ◽  
In The Beginning ◽  
Cellular Pathology ◽  
Induced Changes ◽  
The Impact

In the mid-nineteenth century Virchow revolutionized pathology by introduction of the concept of “cellular pathology”. Today, a century later, this term has increasing significance in health and disease. We now are in the beginning of a new era in pathology, one which might well be termed “organelle pathology” or “subcellular pathology”. The impact of lysosomal diseases on clinical medicine exemplifies this role of pathology of organelles in elucidation of disease today.Another aspect of cell organelles of prime importance is their pathologic alteration by drugs, toxins, hormones and malnutrition. The sensitivity of cell organelles to minute alterations in their environment offers an accurate evaluation of the site of action of drugs in the study of both function and toxicity. Examples of mitochondrial lesions include the effect of DDD on the adrenal cortex, riboflavin deficiency on liver cells, elevated blood ammonia on the neuron and some 8-aminoquinolines on myocardium.

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