MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE
Atmospheric-soil cycling of mercury is a process ultimately affecting mercury distribution to upper trophic levels in terrestrial ecosystems. In the Arctic and sub-Arctic, there is a paucity of information on processes and pathways related to mercury accumulation in terrestrial environments. We revi...
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ftjalces:oai:ojs.pkp.sfu.ca:article/581 2023-05-15T14:54:00+02:00 MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE Duffy, Lawrence K. Kaiser, Christina Ackley, Catherine Richter, Kenneth S. 2001-01-01 application/pdf http://alcesjournal.org/index.php/alces/article/view/581 eng eng Lakehead University http://alcesjournal.org/index.php/alces/article/view/581/663 http://alcesjournal.org/index.php/alces/article/view/581 Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 37 No. 2 (2001): Alces Vol. 37 No. 2 (2001); 293-301 2293-6629 0835-5851 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2001 ftjalces 2022-02-12T19:35:49Z Atmospheric-soil cycling of mercury is a process ultimately affecting mercury distribution to upper trophic levels in terrestrial ecosystems. In the Arctic and sub-Arctic, there is a paucity of information on processes and pathways related to mercury accumulation in terrestrial environments. We reviewed data on mercury levels in resident species of caribou (Rangifer tarandus) and muskox (Ovibos moschatus). Comparison of the inhaled and ingested contribution of mercury from the environment in those species, as well as concentration factors, show accumulation of total mercury (THg) at higher trophic levels in the terrestrial food webs in Alaska, USA. Higher THg concentrations in free-ranging caribou support the hypothesis that caribou, with a major component of lichen in their diet, have higher levels of Hg. Captive muskox showed little biomagnification with a concentration ratio close to 1, whereas caribou had a concentration ratio of 12. Article in Journal/Newspaper Arctic muskox ovibos moschatus Rangifer tarandus Alaska Alces (A Journal Devoted to the Biology and Management of Moose) Arctic |
institution |
Open Polar |
collection |
Alces (A Journal Devoted to the Biology and Management of Moose) |
op_collection_id |
ftjalces |
language |
English |
description |
Atmospheric-soil cycling of mercury is a process ultimately affecting mercury distribution to upper trophic levels in terrestrial ecosystems. In the Arctic and sub-Arctic, there is a paucity of information on processes and pathways related to mercury accumulation in terrestrial environments. We reviewed data on mercury levels in resident species of caribou (Rangifer tarandus) and muskox (Ovibos moschatus). Comparison of the inhaled and ingested contribution of mercury from the environment in those species, as well as concentration factors, show accumulation of total mercury (THg) at higher trophic levels in the terrestrial food webs in Alaska, USA. Higher THg concentrations in free-ranging caribou support the hypothesis that caribou, with a major component of lichen in their diet, have higher levels of Hg. Captive muskox showed little biomagnification with a concentration ratio close to 1, whereas caribou had a concentration ratio of 12. |
format |
Article in Journal/Newspaper |
author |
Duffy, Lawrence K. Kaiser, Christina Ackley, Catherine Richter, Kenneth S. |
spellingShingle |
Duffy, Lawrence K. Kaiser, Christina Ackley, Catherine Richter, Kenneth S. MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE |
author_facet |
Duffy, Lawrence K. Kaiser, Christina Ackley, Catherine Richter, Kenneth S. |
author_sort |
Duffy, Lawrence K. |
title |
MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE |
title_short |
MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE |
title_full |
MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE |
title_fullStr |
MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE |
title_full_unstemmed |
MERCURY IN HAIR OF LARGE ALASKAN HERBIVORES: ROUTES OF EXPOSURE |
title_sort |
mercury in hair of large alaskan herbivores: routes of exposure |
publisher |
Lakehead University |
publishDate |
2001 |
url |
http://alcesjournal.org/index.php/alces/article/view/581 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic muskox ovibos moschatus Rangifer tarandus Alaska |
genre_facet |
Arctic muskox ovibos moschatus Rangifer tarandus Alaska |
op_source |
Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 37 No. 2 (2001): Alces Vol. 37 No. 2 (2001); 293-301 2293-6629 0835-5851 |
op_relation |
http://alcesjournal.org/index.php/alces/article/view/581/663 http://alcesjournal.org/index.php/alces/article/view/581 |
_version_ |
1766325694132912128 |