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Journal Articles

An increase in minimum metabolic rate and not activity explains field metabolic rate changes in a breeding seabird

J. A. Green, E. J. Aitken-Simpson, C. R. White, A. Bunce, P. J. Butler, P. B. Frappell
Journal: Journal of Experimental Biology
J Exp Biol (2013) 216 (9): 1726–1735.
https://doi.org/10.1242/jeb.085092
Published: 1 May 2013
View article titled, An increase in minimum metabolic rate and not activity explains field metabolic rate changes in a breeding seabird
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Journal Articles

The effects of acclimation to reversed seasonal temperatures on the swimming performance of adult brown trout Salmo trutta

N. Day, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2005) 208 (14): 2683–2692.
https://doi.org/10.1242/jeb.01669
Published: 15 July 2005
View article titled, The effects of acclimation to reversed seasonal temperatures on the swimming performance of adult brown trout Salmo trutta
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Journal Articles

Do seasonal changes in metabolic rate facilitate changes in diving behaviour?

J. A. Green, I. L. Boyd, A. J. Woakes, C. J. Green, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2005) 208 (13): 2581–2593.
https://doi.org/10.1242/jeb.01679
Published: 1 July 2005
View article titled, Do seasonal changes in metabolic rate facilitate changes in diving behaviour?
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Journal Articles

Digestive state influences the heart rate hysteresis and rates of heat exchange in the varanid lizard Varanus rosenbergi

T. D. Clark, P. J. Butler, P. B. Frappell
Journal: Journal of Experimental Biology
J Exp Biol (2005) 208 (12): 2269–2276.
https://doi.org/10.1242/jeb.01657
Published: 15 June 2005
View article titled, Digestive state influences the heart rate hysteresis and rates of heat exchange in the varanid lizard Varanus rosenbergi
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Journal Articles

Heart rate and energetics of free-ranging king penguins ( Aptenodytes patagonicus )

G. Froget, P. J. Butler, A. J. Woakes, A. Fahlman, G. Kuntz, Y. Le Maho, Y. Handrich
Journal: Journal of Experimental Biology
J Exp Biol (2004) 207 (22): 3917–3926.
https://doi.org/10.1242/jeb.01232
Published: 15 October 2004
View article titled, Heart rate and energetics of free-ranging king penguins ( Aptenodytes patagonicus )
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Journal Articles

Energetics of diving in macaroni penguins

J. A. Green, P. J. Butler, A. J. Woakes, I. L. Boyd
Journal: Journal of Experimental Biology
J Exp Biol (2003) 206 (1): 43–57.
https://doi.org/10.1242/jeb.00059
Published: 1 January 2003
View article titled, Energetics of diving in macaroni penguins
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Journal Articles

Exposure of brown trout Salmo trutta to a sublethal concentration of copper in soft acidic water: effects upon gas exchange and ammonia accumulation

M. W. Beaumont, P. J. Butler, E. W. Taylor
Journal: Journal of Experimental Biology
J Exp Biol (2003) 206 (1): 153–162.
https://doi.org/10.1242/jeb.00060
Published: 1 January 2003
View article titled, Exposure of brown trout Salmo trutta to a sublethal concentration of copper in soft acidic water: effects upon gas exchange and ammonia accumulation
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Journal Articles

Heart rate and the rate of oxygen consumption of flying and walking barnacle geese ( Branta leucopsis ) and bar-headed geese ( Anser indicus )

S. Ward, C. M. Bishop, A. J. Woakes, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2002) 205 (21): 3347–3356.
https://doi.org/10.1242/jeb.205.21.3347
Published: 1 November 2002
View article titled, Heart rate and the rate of oxygen consumption of flying and walking barnacle geese ( Branta leucopsis ) and bar-headed geese ( Anser indicus )
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Journal Articles

The heart rate/oxygen consumption relationship during cold exposure of the king penguin: a comparison with that during exercise

G. Froget, Y. Handrich, Y. Le Maho, J.-L. Rouanet, A. J. Woakes, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2002) 205 (16): 2511–2517.
https://doi.org/10.1242/jeb.205.16.2511
Published: 15 August 2002
View article titled, The heart rate/oxygen consumption relationship during cold exposure of the king penguin: a comparison with that during exercise
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Journal Articles

The influence of locomotion on air-sac pressures in little penguins

D. F. Boggs, R. V. Baudinette, P. B. Frappell, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (20): 3581–3586.
https://doi.org/10.1242/jeb.204.20.3581
Published: 15 October 2001
View article titled, The influence of locomotion on air-sac pressures in little penguins
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Journal Articles

Effects of sublethal ammonia exposure on swimming performance in rainbow trout ( Oncorhynchus mykiss )

A. Shingles, D. J. McKenzie, E. W. Taylor, A. Moretti, P. J. Butler, S. Ceradini
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (15): 2691–2698.
https://doi.org/10.1242/jeb.204.15.2691
Published: 1 August 2001
View article titled, Effects of sublethal ammonia exposure on swimming performance in rainbow trout ( Oncorhynchus mykiss )
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Journal Articles

Heart rate as an indicator of oxygen consumption: influence of body condition in the king penguin

G. Froget, P. J. Butler, Y. Handrich, A. J. Woakes
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (12): 2133–2144.
https://doi.org/10.1242/jeb.204.12.2133
Published: 15 June 2001
View article titled, Heart rate as an indicator of oxygen consumption: influence of body condition in the king penguin
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Journal Articles

Seasonal hypothermia in a large migrating bird: saving energy for fat deposition?

P. J. Butler, A. J. Woakes
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (7): 1361–1367.
https://doi.org/10.1242/jeb.204.7.1361
Published: 1 April 2001
View article titled, Seasonal hypothermia in a large migrating bird: saving energy for fat deposition?
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Journal Articles

Heart Rate and Rate of Oxygen Consumption of Exercising Macaroni Penguins

J. A. Green, P. J. Butler, A. J. Woakes, I. L. Boyd, R. L. Holder
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (4): 673–684.
https://doi.org/10.1242/jeb.204.4.673
Published: 15 February 2001
View article titled, Heart Rate and Rate of Oxygen Consumption of Exercising Macaroni Penguins
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Journal Articles

Estimation of the rate of oxygen consumption of the common eider duck ( Somateria Mollissima ), With some measurements of heart rate during voluntary dives

P. A. J. Hawkins, P. J. Butler, A. J. Woakes, J. R. Speakman
Journal: Journal of Experimental Biology
J Exp Biol (2000) 203 (18): 2819–2832.
https://doi.org/10.1242/jeb.203.18.2819
Published: 15 September 2000
View article titled, Estimation of the rate of oxygen consumption of the common eider duck ( Somateria Mollissima ), With some measurements of heart rate during voluntary dives
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Journal Articles

The Resting Membrane Potential of White Muscle from Brown Trout ( Salmo Trutta ) Exposed to Copper in Soft, Acidic Water

M. W. Beaumont, E. W. Taylor, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2000) 203 (14): 2229–2236.
https://doi.org/10.1242/jeb.203.14.2229
Published: 15 July 2000
View article titled, The Resting Membrane Potential of White Muscle from Brown Trout ( Salmo Trutta ) Exposed to Copper in Soft, Acidic Water
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Journal Articles

Heat Increment of Feeding in Brünnich’s Guillemot Uria Lomvia

P. A. J. Hawkins, P. J. Butler, A. J. Woakes, G. W. Gabrielsen
Journal: Journal of Experimental Biology
J Exp Biol (1997) 200 (12): 1757–1763.
https://doi.org/10.1242/jeb.200.12.1757
Published: 15 June 1997
View article titled, Heat Increment of Feeding in Brünnich’s Guillemot Uria Lomvia
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Journal Articles

Heart Rates and Abdominal Temperatures of Free-Ranging South Georgian Shags, Phalacrocorax Georgianus

R. M. Bevan, I. L. Boyd, P. J. Butler, K. Reid, A. J. Woakes, J. P. Croxall
Journal: Journal of Experimental Biology
J Exp Biol (1997) 200 (4): 661–675.
https://doi.org/10.1242/jeb.200.4.661
Published: 15 February 1997
View article titled, Heart Rates and Abdominal Temperatures of Free-Ranging South Georgian Shags, Phalacrocorax Georgianus
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Journal Articles

Environmental Acidity and White Muscle Recruitment During Swimming in the Brown Trout ( Salmo Trutta )

N. Day, P. J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (1996) 199 (9): 1947–1959.
https://doi.org/10.1242/jeb.199.9.1947
Published: 1 September 1996
View article titled, Environmental Acidity and White Muscle Recruitment During Swimming in the Brown Trout ( Salmo Trutta )
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Journal Articles

Plasma Ammonia Concentration in Brown Trout in Soft Acidic Water and its Relationship to Decreased Swimming Performance

M. W. Beaumont, P. J. Butler, E. W. Taylor
Journal: Journal of Experimental Biology
J Exp Biol (1995) 198 (10): 2213–2220.
https://doi.org/10.1242/jeb.198.10.2213
Published: 1 October 1995
View article titled, Plasma Ammonia Concentration in Brown Trout in Soft Acidic Water and its Relationship to Decreased Swimming Performance
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