Document Detail


Heart rates in the captive, free-ranging beaver.
MedLine Citation:
PMID:  2906827     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
1. Heart rates of beaver (Castor canadensis) under free-ranging captive conditions for active behaviors and resting in water (approximately 121 beats/min) were significantly (P less than 0.01) higher than for resting on land (100 beats/min). 2. Although no transient recovery tachycardia was evident in swimming heart rates following diving, average swimming heart rates were higher (127 beats/min) after diving than after other precursor behaviors (123 beats/min). 3. Beaver exhibited bradycardia when sleeping (75 beats/min), diving (61 beats/min), and when threatened on land (57 beats/min). 4. The respiratory sinus arrhythmia indicated a respiratory rate of 15 breaths/min. 5. Cold temperatures (approximately 0 degree C) elicited higher heart rates than did warmer temperatures (approximately 20 degrees C) in active, non-diving behaviors (P less than 0.05).
Authors:
U G Swain; F F Gilbert; J D Robinette
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Comparative biochemistry and physiology. A, Comparative physiology     Volume:  91     ISSN:  0300-9629     ISO Abbreviation:  Comp Biochem Physiol A Comp Physiol     Publication Date:  1988  
Date Detail:
Created Date:  1989-05-02     Completed Date:  1989-05-02     Revised Date:  2008-10-30    
Medline Journal Info:
Nlm Unique ID:  1276312     Medline TA:  Comp Biochem Physiol A Comp Physiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  431-5     Citation Subset:  IM    
Affiliation:
Wildlife Biology Program, Washington State University, Pullman 99164-6410.
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MeSH Terms
Descriptor/Qualifier:
Animals
Behavior, Animal / physiology
Heart Rate*
Rodentia / physiology*
Temperature

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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