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Lewis, S., Phillips, R. A., Burthe, S., Wanless, S. & Daunt, F. Contrasting responses of male and female foraging effort to year-round wind conditions. J. Anim. Ecol. 84: 1490-1496 (2015).                                                                                    

Granroth-Wilding, H. M. V., Burthe, S., Lewis, S., Herborn, K. A., Takahashi, A., Daunt, F. & Cunningham, E. J. A. Indirect effects of parasitism: costs of infection to other individuals can be greater than direct costs borne by the host. Proc. R. Soc. B 282: 20150602 (2015).

Froy, H., Lewis, S., Catry, P., Bishop, C. M., Forster, I. P., Fukuda, A., Higuchi, H., Phalan, B., Xavier, J. C., Nussey, D. H. & Phillips, R. A.  Age-related variation in foraging behaviour in the wandering albatross at South Georgia: no evidence for senescence.   PLoS ONE 10(1): e0116415 (2015).   

Granroth-Wilding, H., Burthe, S., Lewis, S., Reed, T.E., Herborn, C., Newell, M., Takahashi, E., Daunt, F. & Cunningham, E.J.A.  Parasitism in early life:environmental conditions shape within-brood variation in responses to infection. Ecology & Evolution 4, 3408-3419 (2014).

Daunt, F., Reed, T. E., Newell, M., Burthe, S., Phillips, R. A., Lewis, S. & Wanless, S. Longitudinal bio-logging reveals interplay between extrinsic and intrinsic carry-over effects in a long-lived vertebrate. Ecology 95, 2077-2083 (2014).

Froy, H., Phillips, R. A., Wood, A. G., Nussey, D. H. & Lewis, S. Age-related variation in reproductive traits in the wandering albatross: evidence for terminal improvement following senescence. Ecology Letters 16, 642-649 (2013). 

Davies, R. D., Wanless, S., Lewis, S., Hamer, K. C. Density-dependent foraging and colony growth under varying  environmental conditions in a pelagic seabird. Marine Ecology Progress Series 485, 287-294 (2013). 

Lewis, S., Nussey, D. H., Wood, A. G., Croxall & J. P., Phillips, R. A. Intrinsic determinants of a population trend in timing of breeding in the wandering albatross. Oikos 121, 2061-2071 (2012).  

Lewis, S., Elston, D. A., Daunt, F., Cheney, B. & Thompson, P. M. Effects of extrinsic and intrinsic factors on breeding success in a long lived seabird. Oikos 118, 521-528 (2009).  

Pichegru, L., Ryan, P. G., Le Bohec, C., van der Lingen, C. D., Navarro, R., Petersen, S., Lewis, S., van der Westhuizen, J. & Grémillet, D. Overlap between vulnerable top predators and fisheries in the Benguela upwelling system: implications for marine protected areas. Marine Ecology Progress Series 391, 199-208 (2009).  

Ropert-Coudert, Y., Daunt, F., Kato, A., Ryan, P. G., Lewis, S., Kobayashi, K., Mori, Y., Grémillet, D. & Wanless, S. Underwater wingbeats extend depth and duration of plunge dives in gannets. Journal of Avian Biology 40, 380-387 (2009).  

Gremillet, D., Lewis, S., Drapeau, L., van Der Lingen, C. D., Huggett, J. A., Coetzee, J. C., Verheye, H. M., Daunt, F., Wanless, S. & Ryan, P. G. Spatial match-mismatch in the Benguela upwelling zone: should we expect chlorophyll and sea-surface temperature to predict marine predator distributions? Journal of Applied Ecology 45, 610-621 (2008). 

Mallory, M. L., Gaston, A. J., Forbes, M. R., Gilchrist, H. G., Cheney, B., Lewis, S. & Thompson, P. M. Flexible incubation rhythm in northern fulmars: a comparison between oceanographic zones. Marine Biology 154, 1031-1040 (2008).  

Wanless, S., Harris, M. P., Lewis, S., Frederiksen, M. & Murray, S. Later breeding in northern gannets in the eastern Atlantic. Marine Ecology Progress Series 370, 263-269 (2008).  

Lewis, S., Roberts, G., Harris, M. P., Prigmore, C. & Wanless, S. Fitness increases with partner and neighbour allopreening. Biology Letters 3, 386-389 (2007).  

Lewis, S., Wanless, S., Elston, D. A., Duhr Schultz, M., Mackley, E., Du Toit, M., Underhill, J. & Harris, M. P. Determinants of quality in a long lived colonial species. Journal of Animal Ecology 75, 1304-1312 (2006).  

Cunningham, E. J. A. & Lewis, S. Parasitism of maternal investment selects for increased clutch size and brood reduction in a host. Behavioral Ecology 17, 126-131 (2006).  

Lewis, S., Gremillet, D., Daunt, F., Ryan, P. G., Crawford, R. J. M. & Wanless, S. Using behavioural and state variables to identify proximate causes of population change in a seabird. Oecologia 147, 606-614 (2006).  

Hamer, K. C., Lewis, S., Wanless, S., Phillips, R. A., Sherratt, T. N., Humphreys, E. M., Hennicke, J. & Garthe, S. in Top predators in marine ecosystems: their role in monitoring and management (eds. Boyd, I. L., Camphuysen, C. J. & Wanless, S.), Cambridge University Press, Cambridge, 236-248 (2006).  

Ropert-Coudert, Y., Wilson, R. P., Gremillet, D., Kato, A., Lewis, S. & Ryan, P. G. Electrocardiogram recordings in free-ranging gannets reveal minimum difference in heart rate during flapping versus gliding flight. Marine Ecology Progress Series 328, 275-284 (2006).  

Ropert-Coudert, Y., Gremillet, D., Gachot-Neveu, H., Lewis, S. & Ryan, P. G. Seeking dimorphism in monomorphic species: the lure of the gannet's mask. Ostrich 76, 212-214 (2005).  

Lewis, S., Schreiber, E. A., Daunt, F., Schenk, G. A., Orr, K., Adams, A., Wanless, S. & Hamer, K. C. Sex-specific foraging behaviour in tropical boobies: does size matter? Ibis 147, 408-414 (2005).  

Lewis, S., Hamer, K. C., Money, L., Griffiths, R., Wanless, S. & Sherratt, T. N. Brood neglect and contingent foraging behavior in a pelagic seabird. Behavioral Ecology and Sociobiology 56, 81-88 (2004).  

Bull, J., Wanless, S., Elston, D. A., Daunt, F., Lewis, S. & Harris, M. P. Local-scale variability in the diet of Black-legged Kittiwakes Rissa tridactyla. Ardea 92, 43-52 (2004).  

Lewis, S., Benvenuti, S., Daunt, F., Wanless, S., Dall'Antonia, L., Luschi, P., Elston, D. A., Hamer, K. C. & Sherratt, T. N. Partitioning of diving effort in foraging trips of northern gannets. Canadian Journal of Zoology 82, 1910-1916 (2004).  

Lewis, S., Schreiber, E. A., Daunt, F., Schenk, G. A., Wanless, S. & Hamer, K. C. Flexible foraging patterns under different time constraints in tropical boobies. Animal Behaviour 68, 1331-1337 (2004).  

Lewis, S., Sherratt, T. N., Hamer, K. C., Harris, M. P. & Wanless, S. Contrasting diet quality of northern gannets Morus bassanus at two colonies. Ardea 91, 167-176 (2003).  

Lewis, S., Benvenuti, S., Dall'Antonia, L., Griffiths, R., Money, L., Sherratt, T. N., Wanless, S. & Hamer, K. C. Sex-specific foraging behaviour in a monomorphic seabird. Proceedings of the Royal Society of London Series B Biological Sciences 269, 1687-1693 (2002).  

Redman, K. K., Lewis, S., Griffiths, R., Wanless, S. & Hamer, K. C. Sexing northern gannets from DNA, morphology and behavior. Waterbirds 25, 230-234 (2002).  

Lewis, S., Sherratt, T. N., Hamer, K. C. & Wanless, S. Evidence of intra-specific competition for food in a pelagic seabird. Nature 412, 816-819 (2001).  

Lewis, S., Wanless, S., Wright, P. J., Harris, M. P., Bull, J. & Elston, D. A. Diet and breeding performance of black-legged kittiwakes Rissa tridactyla at a North Sea colony. Marine Ecology Progress Series 221, 277-284 (2001).