Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska
Eighty-five grizzly bears (Ursus arctos) were captured during 1981 and 1982 in the Alaska Range and in the Arctic National Wildlife Refuge, located in the Brooks Range, Alaska. Blood samples from these bears were examined for erythrocyte count, leukocyte count, hemoglobin, hematocrit, and erythrocyt...
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Canadian Science Publishing
1985
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crcansciencepubl:10.1139/z85-011 2023-12-17T10:17:50+01:00 Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska Brannon, Robert D. 1985 http://dx.doi.org/10.1139/z85-011 http://www.nrcresearchpress.com/doi/pdf/10.1139/z85-011 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 63, issue 1, page 58-62 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1985 crcansciencepubl https://doi.org/10.1139/z85-011 2023-11-19T13:38:23Z Eighty-five grizzly bears (Ursus arctos) were captured during 1981 and 1982 in the Alaska Range and in the Arctic National Wildlife Refuge, located in the Brooks Range, Alaska. Blood samples from these bears were examined for erythrocyte count, leukocyte count, hemoglobin, hematocrit, and erythrocyte indices. Erythrocyte count, hemoglobin, hematocrit, and mean corpuscular volume were significantly higher in the first of two samples collected 1 h apart. This difference suggsts a response to stress during the capture by splenic contraction to provide an increased oxygen supply to oxygen depleted muscle tissues, followed by splenic relaxation and decreased blood pressure with expansion of blood plasma volume. Leukocyte count was significantly higher in the second sample. This difference was probably a result of neutrophilia caused by tissue damage from darting and the removal of muscle tissue samples. Alaska Range bears exhibited higher values for all characteristics except mean corpuscular volume and mean corpuscular hemoglobin, indicating that these bears were more stressed by their capture than bears in the Arctic National Wildlife Refuge. Article in Journal/Newspaper alaska range Arctic Brooks Range Ursus arctos Alaska Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Zoology 63 1 58 62 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Brannon, Robert D. Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Eighty-five grizzly bears (Ursus arctos) were captured during 1981 and 1982 in the Alaska Range and in the Arctic National Wildlife Refuge, located in the Brooks Range, Alaska. Blood samples from these bears were examined for erythrocyte count, leukocyte count, hemoglobin, hematocrit, and erythrocyte indices. Erythrocyte count, hemoglobin, hematocrit, and mean corpuscular volume were significantly higher in the first of two samples collected 1 h apart. This difference suggsts a response to stress during the capture by splenic contraction to provide an increased oxygen supply to oxygen depleted muscle tissues, followed by splenic relaxation and decreased blood pressure with expansion of blood plasma volume. Leukocyte count was significantly higher in the second sample. This difference was probably a result of neutrophilia caused by tissue damage from darting and the removal of muscle tissue samples. Alaska Range bears exhibited higher values for all characteristics except mean corpuscular volume and mean corpuscular hemoglobin, indicating that these bears were more stressed by their capture than bears in the Arctic National Wildlife Refuge. |
format |
Article in Journal/Newspaper |
author |
Brannon, Robert D. |
author_facet |
Brannon, Robert D. |
author_sort |
Brannon, Robert D. |
title |
Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska |
title_short |
Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska |
title_full |
Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska |
title_fullStr |
Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska |
title_full_unstemmed |
Hematological characteristics of grizzly bears ( Ursus arctos ) in central and northeastern Alaska |
title_sort |
hematological characteristics of grizzly bears ( ursus arctos ) in central and northeastern alaska |
publisher |
Canadian Science Publishing |
publishDate |
1985 |
url |
http://dx.doi.org/10.1139/z85-011 http://www.nrcresearchpress.com/doi/pdf/10.1139/z85-011 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
alaska range Arctic Brooks Range Ursus arctos Alaska |
genre_facet |
alaska range Arctic Brooks Range Ursus arctos Alaska |
op_source |
Canadian Journal of Zoology volume 63, issue 1, page 58-62 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z85-011 |
container_title |
Canadian Journal of Zoology |
container_volume |
63 |
container_issue |
1 |
container_start_page |
58 |
op_container_end_page |
62 |
_version_ |
1785522758049857536 |