Measuring energetics and behaviour using accelerometry in cane toads bufo marinus

Halsey, Lewis G. and White, Craig R. (2010) Measuring energetics and behaviour using accelerometry in cane toads bufo marinus. PLoS One, 5 4: e10170 - 1-e10170 - 8. doi:10.1371/journal.pone.0010170


Author Halsey, Lewis G.
White, Craig R.
Title Measuring energetics and behaviour using accelerometry in cane toads bufo marinus
Formatted title
Measuring Energetics and Behaviour Using Accelerometry in Cane Toads Bufo marinus
Journal name PLoS One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2010-04-01
Year available 2010
Sub-type Article (original research)
DOI 10.1371/journal.pone.0010170
Open Access Status DOI
Volume 5
Issue 4
Start page e10170 - 1
End page e10170 - 8
Total pages 8
Place of publication United States
Publisher Public Library of Science
Language eng
Formatted abstract
Cane toads Bufo marinus were introduced to Australia as a control agent but now have a rapidly progressing invasion front and damage new habitats they enter. Predictive models that can give expansion rates as functions of energy supply and feeding ground distribution could help to maximise control efficiency but to date no study has measured rates of field energy expenditure in an amphibian. In the present study we used the accelerometry technique to generate behavioural time budgets and, through the derivation of ODBA (overall dynamic body acceleration), to obtain estimates of energetics in free ranging cane toads. This represents the first time that accelerometers have been used to not only quantify the behaviour of animals but also assign to those behaviours rates of energy expenditure. Firstly, laboratory calibrations between ODBA and metabolic rate were obtained and used to generate a common prediction equation for the subject toads (R2 = 0.74). Furthermore, acceleration data recorded during different behaviours was studied to ascertain threshold values for objectively defining behaviour categories. Importantly, while subsequent accelerometer field deployments were relatively short they agreed with previous studies on the proportion of time that cane toads locomote yet suggest that the metabolic rate of cane toads in the wild may sometimes be considerably higher than might be assumed based on data for other species.
Keyword Doubly Labeled Water
Heart-rate
Metabolic-rate
Body-temperature
Thermal-dependence
Oxygen-consumption
Dynamic action
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Received: March 2, 2010; Accepted: March 25, 2010; Published: April 21, 2010

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
 
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Created: Sun, 09 May 2010, 10:01:18 EST