Dr Steve Portugal

  1. Doctoral Thesis › Research
  2. Published
  3. Article › Research › Not peer-reviewed
  4. Published

    Mechanics of flight feathers: effects of captivity?

    Portugal, S., Nudds, R., Green, J., Alexander, R. M., Butler, P. & Ker, R., 2020, In: bioRxiv.

    Research output: Contribution to journalArticle

  5. Published

    Overall dynamic body acceleration as an indicator of dominance in homing pigeons

    Ricketts, R., Sankey, D., Tidswell, B., Brown, J., Deegan, J. & Portugal, S., 2020, In: bioRxiv.

    Research output: Contribution to journalArticle

  6. Submitted

    Pre-winter fattening and fat loss during wing moult: the annual cycle of fat deposition in captive barnacle geese (Branta leucopsis).

    Portugal, S., McGill, R., Green, J. & Butler, P., 2020, (Submitted) In: bioRxiv.

    Research output: Contribution to journalArticle

  7. Published

    The determinants of aggression in male Siamese fightingfish, Betta splendens

    McGoran, R., Papworth, S. & Portugal, S., 2020, In: bioRxiv.

    Research output: Contribution to journalArticle

  8. Article › Research › Peer-reviewed
  9. Published

    A comparison of indices and measured values of eggshell thickness of different shell regions using museum eggs of 230 European bird species

    Maurer, G., Portugal, S. J., Cassey, P. & Portugal, S., 1 Oct 2012, In: Ibis. 154, 4, p. 714-724 11 p.

    Research output: Contribution to journalArticlepeer-review

  10. Published

    A rare mineral, vaterite, acts as a shock absorber in the eggshell of a communally nesting bird

    Portugal, S., Bowen, J. & Riehl, C., 3 Jan 2018, In: Ibis. 160, 1, p. 173-178 6 p.

    Research output: Contribution to journalArticlepeer-review

  11. Published

    Absence of “selfish herd” dynamics in bird flocks under threat

    Sankey, D., Storms, R., Musters, R., Russell, T., Hemelrijk, C. & Portugal, S., 4 Jun 2021, In: Current Biology . 31, 14, p. 3192-3198 7 p.

    Research output: Contribution to journalArticlepeer-review

  12. Published

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

    Portugal, S. J., Green, J. A. & Butler, P. J., 31 Mar 2007, In: Journal of Experimental Biology. 210, p. 1391-1397 7 p.

    Research output: Contribution to journalArticlepeer-review

  13. Published

    Artificial mass loading disrupts stable social order in pigeon dominance hierarchies

    Portugal, S., Usherwood, J., White, C., Sankey, D. & Wilson, A. M., 5 Aug 2020, In: Biology Letters. 16, 8, 6 p.

    Research output: Contribution to journalArticlepeer-review

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