Relative Heart Size in Alaskan Tetraonidae
Abstract Heart:body size ratios were measured in over 1,900 specimens of seven species of Alaskan Tetraonidae. Blue Grouse (Dendragapus obscurus) and Ruffed Grouse (Bonasa umbellus) have hearts averaging only 0.4 to 0.5% of body weight. At the other extreme, Rock Ptarmigan (Lagopus mutus) have heart...
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Oxford University Press (OUP)
1979
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croxfordunivpr:10.1093/auk/96.2.306 2023-05-15T17:06:25+02:00 Relative Heart Size in Alaskan Tetraonidae Weeden, Robert B. 1979 http://dx.doi.org/10.1093/auk/96.2.306 http://academic.oup.com/auk/article-pdf/96/2/306/32910565/auk0306.pdf en eng Oxford University Press (OUP) The Auk volume 96, issue 2, page 306-318 ISSN 0004-8038 1938-4254 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1979 croxfordunivpr https://doi.org/10.1093/auk/96.2.306 2022-04-15T06:30:43Z Abstract Heart:body size ratios were measured in over 1,900 specimens of seven species of Alaskan Tetraonidae. Blue Grouse (Dendragapus obscurus) and Ruffed Grouse (Bonasa umbellus) have hearts averaging only 0.4 to 0.5% of body weight. At the other extreme, Rock Ptarmigan (Lagopus mutus) have hearts averaging 2.0% of body weight. Between these extremes are White-tailed Ptarmigan (L. leucurus), 1.1%; Spruce Grouse (Canachites canadensis), 1.2%; Sharp-tailed Grouse (Pedioecetes phasianellus), 1.4%; and Willow Ptarmigan (L. lagopus), 1.4%. Intraspecific variations related to sex, age, body size, season, and locality were found in some but not all species. The members of this family seem to have evolved diverse strategies for meeting cardiovascular requirements, and heart size alone does not reveal the nature of these systems. Article in Journal/Newspaper Lagopus mutus rock ptarmigan Oxford University Press (via Crossref) The Auk 96 2 306 318 |
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Open Polar |
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Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Weeden, Robert B. Relative Heart Size in Alaskan Tetraonidae |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract Heart:body size ratios were measured in over 1,900 specimens of seven species of Alaskan Tetraonidae. Blue Grouse (Dendragapus obscurus) and Ruffed Grouse (Bonasa umbellus) have hearts averaging only 0.4 to 0.5% of body weight. At the other extreme, Rock Ptarmigan (Lagopus mutus) have hearts averaging 2.0% of body weight. Between these extremes are White-tailed Ptarmigan (L. leucurus), 1.1%; Spruce Grouse (Canachites canadensis), 1.2%; Sharp-tailed Grouse (Pedioecetes phasianellus), 1.4%; and Willow Ptarmigan (L. lagopus), 1.4%. Intraspecific variations related to sex, age, body size, season, and locality were found in some but not all species. The members of this family seem to have evolved diverse strategies for meeting cardiovascular requirements, and heart size alone does not reveal the nature of these systems. |
format |
Article in Journal/Newspaper |
author |
Weeden, Robert B. |
author_facet |
Weeden, Robert B. |
author_sort |
Weeden, Robert B. |
title |
Relative Heart Size in Alaskan Tetraonidae |
title_short |
Relative Heart Size in Alaskan Tetraonidae |
title_full |
Relative Heart Size in Alaskan Tetraonidae |
title_fullStr |
Relative Heart Size in Alaskan Tetraonidae |
title_full_unstemmed |
Relative Heart Size in Alaskan Tetraonidae |
title_sort |
relative heart size in alaskan tetraonidae |
publisher |
Oxford University Press (OUP) |
publishDate |
1979 |
url |
http://dx.doi.org/10.1093/auk/96.2.306 http://academic.oup.com/auk/article-pdf/96/2/306/32910565/auk0306.pdf |
genre |
Lagopus mutus rock ptarmigan |
genre_facet |
Lagopus mutus rock ptarmigan |
op_source |
The Auk volume 96, issue 2, page 306-318 ISSN 0004-8038 1938-4254 |
op_doi |
https://doi.org/10.1093/auk/96.2.306 |
container_title |
The Auk |
container_volume |
96 |
container_issue |
2 |
container_start_page |
306 |
op_container_end_page |
318 |
_version_ |
1766061550493237248 |