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Doctoral students

Ben Dilley

Ben Dilley
BSc (Hons) UCT 2011

Email: dilleyben@gmail.com

After a few years research in Etosha, Namibia, Ben worked for the BBC NHU for Planet Earth and Life before heading south to Marion Island in 2009-10. In 2011, Ben completed a BSc Hons at UCT, spending his spare time in the Karoo catching enigmatic Ludwig’s Bustards. After a second year on Marion (2012-13), a year on Gough (2014-15) and a summer on Tristan da Cunha and Nightingale (2015-16), Ben spent another summer on Nightingale Island working on Wilkins’ Buntings (2017-18). Ben’s primary interest is the long term monitoring of seabirds on sub-Antarctic Islands with a focus on how introduced mammals effect these seabird populations.

Thesis title

The effects of introduced mice on seabirds breeding at sub-Antarctic islands (Supervisor: Peter Ryan) (Due to graduate in May 2019)

Publications

Publications:

 

Ryan, P.G., and Dilley, B.J., 2019. Population trends of Spectacled Petrels and other seabirds at Inaccessible Island. Marine Ornithology – submitted.

Ryan, P.G., and Dilley, B.J., 2019. Intertidal foraging by Tristan Thrushes. Ostrich – submitted.

Dilley, B. J., Hedding, D.W., Rexer-Huber, K., Parker, G.C., Schoombie, S., and Ryan, P.G., 2019. Clustered or dispersed: testing the effect of sampling strategy to census burrow-nesting petrels with varied distributions at sub-Antarctic Marion Island. Antarctic Science – in review.

Dilley, B.J., Davies, D., Stevens, K., Schoombie, S., Schoombie, J., and Ryan, P.G., 2019. Burrow wars and sinister behaviour among burrow-nesting petrels at sub-Antarctic Marion Island. Ardea – in press.

Preston, G.R., Dilley, B.J., Cooper, J., et al. and Ryan, P.G., 2019. A plan of action to eradicate introduced house mice on South Africa’s sub-Antarctic Marion Island. In Veitch, D. (Ed.). Proceedings of the Third Island Invasives Conference, Dundee, July 2017. IUCN, Gland.

Oppel, S., Bolton, M., Carneiro, A.P., Dias, M.P., Green, J.A., Masello, J.F., Phillips, R.A., Owen, E., Quillfeldt, P., Beard, A., Dilley, B.J, Davies, D., et al. and Bertrand, S., 2018. Spatial scales of marine conservation management for breeding seabirds. Marine Policy, 98, pp.37-46.

Schoombie, S., Dilley, B.J., Davies, D. and Ryan, P.G., 2018. The foraging range of Great Shearwaters Ardenna gravis breeding on Gough Island. Polar Biology, 41(12), pp.2451-2458.

Rollinson, D.P., Dilley, B.J., Davies, D. and Ryan, P.G., 2018. Year-round movements of white-chinned petrels from Marion Island, south-western Indian Ocean. Antarctic Science, 30(3), pp.183-195.

Dilley, B.J., Schoombie, S., Stevens, K., Davies, D., Perold, V., Osborne, A., Schoombie, J., Brink, C.W., Carpenter-Kling, T. and Ryan, P.G., 2018. Mouse predation affects breeding success of burrow-nesting petrels at sub-Antarctic Marion Island. Antarctic Science, 30(2), pp.93-104.

Reisinger, R.R., Raymond, B., Hindell, M.A., Bester, M.N., Crawford, R.J., Davies, D., de Bruyn, P.N., Dilley, B.J., Kirkman, S.P., Makhado, A.B. and Ryan, P.G., 2018. Habitat modelling of tracking data from multiple marine predators identifies important areas in the Southern Indian Ocean. Diversity and Distributions, 24(4), pp.535-550.

Brooke, M.D.L., Bonnaud, E., Dilley, B.J., Flint, E.N., Holmes, N.D., Jones, H.P., Provost, P., Rocamora, G., Ryan, P.G., Surman, C. and Buxton, R.T., 2018. Seabird population changes following mammal eradications on islands. Animal Conservation, 21(1), pp.3-12.

Brooke, M.D.L., Bonnaud, E., Dilley, B.J., Flint, E.N., Holmes, N.D., Jones, H.P., Provost, P., Rocamora, G., Ryan, P.G., Surman, C. and Buxton, R.T., 2018. Enhancing the value of future island eradications needs improved understanding of past outcomes. Animal Conservation, 21(1), pp.19-20.

Schoombie, S., Schoombie, J., Oosthuizen, A., Suleman, E., Jones, M.G.W., Pretorius, L., Dilley, B.J. and Ryan, P.G., 2018. Avian pox in seabirds on Marion Island, southern Indian Ocean. Antarctic Science, 30(1), pp.3-12.

Dilley, B.J., Davies, D., Schramm, M., Connan, M. and Ryan, P.G., 2017. The distribution and abundance of Blue Petrels Halobaena caerulea breeding at subantarctic Marion Island. Emu-Austral Ornithology, 117(3), pp.222-232.

Jones, M.G.W., Dilley, B.J., Hagens, Q.A., Louw, H., Mertz, E.M., Visser, P. and Ryan, P.G., 2017. Wandering Albatross Diomedea exulans breeding phenology at Marion Island. Polar Biology, 40(5), pp.1139-1148.

Schoombie, S., Dilley, B.J., Davies, D., Glass, T. and Ryan, P.G., 2017. The distribution of breeding Sooty Albatrosses from the three most important breeding sites: Gough, Tristan and the Prince Edward Islands. Emu-Austral Ornithology, 117(2), pp.160-169.

Dilley, B.J., Schramm, M. and Ryan, P.G., 2017. Modest increases in densities of burrow-nesting petrels following the removal of cats Felis catus from Marion Island. Polar Biology, 40(3), pp.625-637.

Rollinson, D.P., Dilley, B.J., Davies, D. and Ryan, P.G., 2016. Diving behaviour of Grey Petrels and its relevance for mitigating long-line by-catch. Emu-Austral Ornithology, 116(4), pp.340-349.

Pichegru, L., Edwards, T.B., Dilley, B.J., Flower, T.P. and Ryan, P.G., 2016. African Penguin tolerance to humans depends on historical exposure at colony level. Bird Conservation International, 26(3), pp.307-322.

Dilley, B.J., Schoombie, S., Schoombie, J. and Ryan, P.G., 2016. ‘Scalping’of albatross fledglings by introduced mice spreads rapidly at Marion Island. Antarctic Science, 28(2), pp.73-80.

Dilley, B.J., Davies, D., Bond, A.L. and Ryan, P.G., 2015. Effects of mouse predation on burrowing petrel chicks at Gough Island. Antarctic Science, 27(6), pp.543-553.

Davies, D., Dilley, B., Bond, A., Cuthbert, R. and Ryan, P., 2015. Trends and tactics of mouse predation on Tristan Albatross Diomedea dabbenena chicks at Gough Island, South Atlantic Ocean. Avian Conservation and Ecology, 10(1).

Ryan, P.G., Dilley, B.J., Jones, C. and Bond, A.L., 2015. Blue Petrels Halobaena caerulea discovered breeding on Gough Island. Ostrich, 86(1-2), pp.193-194.

Torres, L.G., Sutton, P.J., Thompson, D.R., Delord, K., Weimerskirch, H., Sagar, P.M., Sommer, E., Dilley, B.J., Ryan, P.G. and Phillips, R.A., 2015. Poor transferability of species distribution models for a pelagic predator, the grey petrel, indicates contrasting habitat preferences across ocean basins. PLoS One, 10(3), p.e0120014.

Dilley, B. and Davies, D., 2015. Mice massacre: help for Gough Island’s birds. African Birdlife, 4(1), pp.43-47.

Jones, M.G.W., Dilley, B.J., Hagens, Q.A., Louw, H., Mertz, E.M., Visser, P. and Ryan, P.G., 2014. The effect of parental age, experience and historical reproductive success on wandering albatross Diomedea exulans chick growth and survival. Polar biology, 37(11), pp.1633-1644.

Rollinson, D.P., Dilley, B.J. and Ryan, P.G., 2014. Diving behaviour of white-chinned petrels and its relevance for mitigating longline bycatch. Polar Biology, 37(9), pp.1301-1308.

Ryan, P.G., Bourgeois, K., Dromzée, S. and Dilley, B.J., 2014. The occurrence of two bill morphs of prions Pachyptila vittata on Gough Island. Polar biology, 37(5), pp.727-735.

Shaw, J.M., Dilley, B.J., Davies, D. and Ryan, P.G., 2014. Trapping and capture myopathy in Ludwig's Bustard. African Journal of Wildlife Research, 44(1), pp.16-24.

Dilley, B.J., 2013. Living on the edge: Sooty Albatross chick killed by a Northern Giant Petrel. Biodiversity Observations, pp.138-142.

Dilley, B.J., Davies, D., Connan, M., Cooper, J., De Villiers, M., Swart, L., Vandenabeele, S., Ropert-Coudert, Y. and Ryan, P.G., 2013. Giant petrels as predators of albatross chicks. Polar Biology, 36(5), pp.761-766.

Ryan, P.G., Dilley, B.J. and Jones, M.G.W., 2012. The distribution and abundance of white-chinned petrels Procellaria aequinoctialis breeding at the sub-Antarctic Prince Edward Islands. Polar Biology, 35(12), pp.1851-1859.