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Outputs (5)

Philopatry, site fidelity and local kin associations within grey seal breeding colonies. (2000)
Journal Article
Pomeroy, P., Twiss, S., & Redman, P. (2000). Philopatry, site fidelity and local kin associations within grey seal breeding colonies. Ethology: international journal of behavioural biology, 106(10), 899-919

Colonially breeding animals such as grey seals typically have a discrete number of breeding sites. The extent to which offspring are philopatric (return to breed at their natal site) and the prevalence of philopatry by sex of pup has fundamental cons... Read More about Philopatry, site fidelity and local kin associations within grey seal breeding colonies..

Remote estimation of grey seal length, width and body mass from aerial photography (2000)
Journal Article
Twiss, S., Pomeroy, P., Thomas, C., & Mills, J. (2000). Remote estimation of grey seal length, width and body mass from aerial photography. Photogrammetric engineering and remote sensing, 66(7), 859-866

High-resolution images of two UK grey seal breeding colonies were derived from multi-temporal aerial photography and geo-referenced in a GIS using ground control points obtained in the field with sub-meter DGPS. Lengths and widths of seals were digit... Read More about Remote estimation of grey seal length, width and body mass from aerial photography.

Finescale topographical correlates of behavioural investment in offspring by female grey seals, Halichoerus grypus (2000)
Journal Article
Twiss, S., Caudron, A., Pomeroy, P., Thomas, C., & Mills, J. (2000). Finescale topographical correlates of behavioural investment in offspring by female grey seals, Halichoerus grypus. Animal Behaviour, 59(2), 327-338. https://doi.org/10.1006/anbe.1999.1320

Grey seals breed colonially on substrates ranging from ice to rocky or sandy beaches. Clear differences in seal behaviour patterns exist among such broad classes of breeding habitat. However, finer scale topographical variation is likely to influence... Read More about Finescale topographical correlates of behavioural investment in offspring by female grey seals, Halichoerus grypus.

Expansion of a grey seal (Halichoerus grypus) breeding colony: change in pupping site use at the Isle of May, Scotland. (2000)
Journal Article
Pomeroy, P., Twiss, S., & Duck, C. (2000). Expansion of a grey seal (Halichoerus grypus) breeding colony: change in pupping site use at the Isle of May, Scotland. Journal of Zoology, 250(1), 1-12

Until the mid 1970s only a few grey seal Halichoerus grypus pups were born each year on the Isle of May, Scotland, but 1408 pups were born there in 1994. We examined changes in overall site use, individual pupping site fidelity and success iu relatio... Read More about Expansion of a grey seal (Halichoerus grypus) breeding colony: change in pupping site use at the Isle of May, Scotland..