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Steven J. Portugal
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Journal Articles

Influence of behavioural and morphological group composition on pigeon flocking dynamics

Daniel W. E. Sankey, Steven J. Portugal
Journal: Journal of Experimental Biology
J Exp Biol (2023) 226 (15): jeb245776.
https://doi.org/10.1242/jeb.245776
Published: 3 August 2023
View article titled, Influence of behavioural and morphological group composition on pigeon flocking dynamics
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Includes: Supplementary data
Journal Articles

Homing pigeons ( Columba livia ) modulate wingbeat characteristics as a function of route familiarity

Lucy A. Taylor, Steven J. Portugal, Dora Biro
Journal: Journal of Experimental Biology
J Exp Biol (2017) 220 (16): 2908–2915.
https://doi.org/10.1242/jeb.154039
Published: 15 August 2017
View article titled, Homing pigeons ( Columba livia ) modulate wingbeat characteristics as a function of route familiarity
Open the PDF for Homing pigeons ( Columba livia ) modulate wingbeat characteristics as a function of route familiarity in another window
Includes: Supplementary data
Journal Articles

Nesting behaviour influences species-specific gas exchange across avian eggshells

Steven J. Portugal, Golo Maurer, Gavin H. Thomas, Mark E. Hauber, Tomáš Grim, Phillip Cassey
Journal: Journal of Experimental Biology
J Exp Biol (2014) 217 (18): 3326–3332.
https://doi.org/10.1242/jeb.103291
Published: 15 September 2014
View article titled, Nesting behaviour influences species-specific gas exchange across avian eggshells
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Includes: Supplementary data
Journal Articles

Implantation reduces the negative effects of bio-logging devices on birds

Craig R. White, Phillip Cassey, Natalie G. Schimpf, Lewis G. Halsey, Jonathan A. Green, Steven J. Portugal
Journal: Journal of Experimental Biology
J Exp Biol (2013) 216 (4): 537–542.
https://doi.org/10.1242/jeb.076554
Published: 15 February 2013
View article titled, Implantation reduces the negative effects of bio-logging devices on birds
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Includes: Supplementary data
Journal Articles

Predicting the rate of oxygen consumption from heart rate in barnacle geese Branta leucopsis : effects of captivity and annual changes in body condition

Steven J. Portugal, Jonathan A. Green, Phillip Cassey, Peter B. Frappell, Patrick J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2009) 212 (18): 2941–2948.
https://doi.org/10.1242/jeb.034546
Published: 15 September 2009
View article titled, Predicting the rate of oxygen consumption from heart rate in barnacle geese Branta leucopsis : effects of captivity and annual changes in body condition
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Journal Articles

Testing the use/disuse hypothesis: pectoral and leg muscle changes in captive barnacle geese Branta leucopsis during wing moult

Steven J. Portugal, Susannah K. S. Thorpe, Jonathan A. Green, Julia P. Myatt, Patrick J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2009) 212 (15): 2403–2410.
https://doi.org/10.1242/jeb.021774
Published: 1 August 2009
View article titled, Testing the use/disuse hypothesis: pectoral and leg muscle changes in captive barnacle geese Branta leucopsis during wing moult
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Journal Articles

Annual changes in body mass and resting metabolism in captive barnacle geese ( Branta leucopsis ): the importance of wing moult

Steven J. Portugal, Jonathan A. Green, Patrick J. Butler
Journal: Journal of Experimental Biology
J Exp Biol (2007) 210 (8): 1391–1397.
https://doi.org/10.1242/jeb.004598
Published: 15 April 2007
View article titled, Annual changes in body mass and resting metabolism in captive barnacle geese ( Branta leucopsis ): the importance of wing moult
Open the PDF for Annual changes in body mass and resting metabolism in captive barnacle geese ( Branta leucopsis ): the importance of wing moult in another window