All Outputs (3)

Use of gannets to monitor prey availability in the northeast Atlantic Ocean: colony size, diet and foraging behaviour (2006)
Book Chapter
Hamer, K. C., Lewis, S., Wanless, S., Phillips, R. A., Sherratt, T. N., Humphreys, E. M., Hennicke, J., & Garthe, S. (2006). Use of gannets to monitor prey availability in the northeast Atlantic Ocean: colony size, diet and foraging behaviour. In I. L. Boyd, S. Wanless, & C. J. Camphuysen (Eds.), Top Predators in Marine Ecosystems: Their Role in Monitoring and Management (236-248). Cambridge University Press. https://doi.org/10.1017/cbo9780511541964.017

Large seabirds such as northern gannets Morus bassanus have very flexible time–activity budgets; this means that changes in variables such as foraging-trip duration could provide a rapid indicator of changes in food supply, an indicator that could no... Read More about Use of gannets to monitor prey availability in the northeast Atlantic Ocean: colony size, diet and foraging behaviour.

Electrocardiogram recordings in free-ranging gannets reveal minimum difference in heart rate during flapping versus gliding flight (2006)
Journal Article
Ropert-Coudert, Y., Wilson, R., Grémillet, D., Kato, A., Lewis, S., & Ryan, P. (2006). Electrocardiogram recordings in free-ranging gannets reveal minimum difference in heart rate during flapping versus gliding flight. Marine Ecology Progress Series, 328, 275-284. https://doi.org/10.3354/meps328275

Gliding flight is one of the major features that allows flying animals to cover extensive distances while minimising their energy expenditures. This has been supported by studies recording heart rate as a proxy for energy expended, but the exact amou... Read More about Electrocardiogram recordings in free-ranging gannets reveal minimum difference in heart rate during flapping versus gliding flight.

Determinants of quality in a long-lived colonial species (2006)
Journal Article
Lewis, S., Wanless, S., Elston, D. A., Schultz, M. D., Mackley, E., Du Toit, M., Underhill, J. G., & Harris, M. P. (2006). Determinants of quality in a long-lived colonial species. Journal of Animal Ecology, 75(6), 1304-1312. https://doi.org/10.1111/j.1365-2656.2006.01152.x

1. In many animal populations a small proportion of individuals produce the majority of surviving offspring, but the underlying mechanisms are unclear. Behaviour may be an important determinant of variation in fitness: 'high-quality' individuals may... Read More about Determinants of quality in a long-lived colonial species.