Explosive Jumping: Extreme Morphological and Physiological Specializations of Australian Rocket Frogs (Litoria nasuta)

James, R. S. and Wilson, R. S. (2008) Explosive Jumping: Extreme Morphological and Physiological Specializations of Australian Rocket Frogs (Litoria nasuta). Physiological and Biochemical Zoology, 81 2: 176-185. doi:10.1086/525290

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Author James, R. S.
Wilson, R. S.
Title Explosive Jumping: Extreme Morphological and Physiological Specializations of Australian Rocket Frogs (Litoria nasuta)
Formatted title
Explosive Jumping: Extreme Morphological and Physiological Specializations of Australian Rocket Frogs (Litoria nasuta)
Journal name Physiological and Biochemical Zoology   Check publisher's open access policy
ISSN 1522-2152
1537-5293
Publication date 2008-03-01
Sub-type Article (original research)
DOI 10.1086/525290
Open Access Status File (Publisher version)
Volume 81
Issue 2
Start page 176
End page 185
Total pages 10
Place of publication Chicago, IL United States
Publisher University of Chicago Press
Collection year 2009
Language eng
Subject C1
960899 Flora, Fauna and Biodiversity of Environments not elsewhere classified
060699 Physiology not elsewhere classified
Formatted abstract
Anuran jumping is an ideal system for examining the relationships between key morphological, physiological, and kinematic parameters. We used the Australian rocket frog (Litoria nasuta) as a model species to investigate extreme specialization of the vertebrate locomotor system for jumping. We measured the ground reaction forces applied during maximal jumps using a custom‐designed force platform, which allowed us to calculate instantaneous measures of acceleration, velocity, power output, and total jump distance. We quantified the mechanical properties of the plantaris longus muscle using the work loop technique. We found that L. nasuta achieved the second‐longest relative jumping distance for any anuran (55.2 body lengths for one individual) and the highest published anuran values for isolated net mean muscle power output measured using work loops (93.5 W kg−1 muscle mass), hindlimb length to snout‐vent length ratio (2.02), and relative hindlimb muscle mass (33% of body mass). Litoria nasuta also had a higher ratio of tibia length to snout‐vent length than 19 related species. We found that the mean power output expended during the takeoff phase of jumping in the individual that jumped the farthest was about three times greater than our estimate of available muscle power output.
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Biological Sciences Publications
 
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Created: Wed, 15 Apr 2009, 18:43:21 EST by Gail Walter on behalf of School of Biological Sciences