J. Piatt, A. Harding, M. Shultz, S. Speckman, T. Van-pelt et al., Seabirds as indicators of marine food supplies: Cairns revisited, Marine Ecology Progress Series, vol.352, pp.221-234, 2007.
DOI : 10.3354/meps07078

F. Sergio, I. Newton, L. Marchesi, and P. Pedrini, Ecologically justified charisma: preservation of top predators delivers biodiversity conservation, Journal of Applied Ecology, vol.65, issue.6, pp.1049-1055, 2006.
DOI : 10.1046/j.1365-2699.2003.01002.x

P. Fauchald, Spatial interaction between seabirds and prey: review and synthesis, Marine Ecology Progress Series, vol.391, pp.139-151, 2009.
DOI : 10.3354/meps07818

URL : http://www.int-res.com/articles/theme/m391p139.pdf

R. Crawford, A. Makhado, P. Whittington, R. Randall, W. Oosthuizen et al., A changing distribution of seabirds in South Africa: the possible impact of climate and its consequences. Climate Change and Marine Top Predators, pp.1-11, 2016.

R. Sherley, K. Ludynia, B. Dyer, T. Lamont, A. Makhado et al., Metapopulation Tracking Juvenile Penguins Reveals an Ecosystem-wide Ecological Trap, Current Biology, vol.27, issue.4, pp.563-568, 2017.
DOI : 10.1016/j.cub.2016.12.054

URL : https://doi.org/10.1016/j.cub.2016.12.054

R. Crawford, A recent increase of swift terns Thalasseus bergii off South Africa ??? The possible influence of an altered abundance and distribution of prey, Progress in Oceanography, vol.83, issue.1-4, pp.398-403, 2009.
DOI : 10.1016/j.pocean.2009.07.021

D. Gaglio, T. Cook, M. Connan, P. Ryan, and R. Sherley, Dietary studies in birds: testing a non-invasive method using digital photography in seabirds, Methods in Ecology and Evolution, vol.41, issue.2, pp.214-222, 2017.
DOI : 10.1080/00306525.1987.9634141

A. Makhado, B. Dyer, R. Fox, D. Geldenhuys, L. Pichegru et al., Estimates of numbers of twelve seabird species breeding in South Africa, updated to include 2012, pp.1-16, 2013.

L. Nicholson, Breeding strategies and community structure in an assemblage of tropical seabirds on the Lowendal Islands, Western Australia, 2002.

J. Oksanen, G. Blanchet, R. Kindt, P. Legendre, P. Minchin et al., Community Ecology Package. R package version 2.3?0, 2015.

G. Quinn and M. Keough, Experimental design and data analysis for biologists, 2002.
DOI : 10.1017/CBO9780511806384

N. Karnovsky, K. Hobson, and S. Iverson, From lavage to lipids: estimating diets of seabirds, Marine Ecology Progress Series, vol.451, pp.263-284, 2012.
DOI : 10.3354/meps09713

D. Bocard, F. Gillet, and P. Legendre, Numerical Ecology with R, 2011.

S. Wood, Generalized additive models: an introduction with R. Chapman and Hall, 2006.

C. Van-der-lingen and J. Huggett, The role of ichthyoplankton surveys in recruitment research and management of South African anchovy and sardine, The big fish bang: proceedings of the 26th annual larval fish conference. Institute of Marine Research, pp.303-343, 2003.

L. Hutchings, A. Jarre, F. Weller, A. Steinfurth, C. Hagen et al., Comments on the River model " (de Moor and Butterworth 2014): Bounding exploitation rate, estimating escapement for critically dependent predators, or understanding the interactions between anchovy and penguin demographics? SARChl internal report, 2014.

A. Zuur, E. Ieno, N. Walker, A. Saveliev, and G. Smith, Mixed Effects Models and Extensions in Ecology with R, 2009.
DOI : 10.1007/978-0-387-87458-6

P. Cury, A. Bakun, R. Crawford, A. Jarre-teichmann, R. Quiñones et al., Small pelagics in upwelling systems: patterns of interaction and structural changes in ???wasp-waist??? ecosystems, ICES Journal of Marine Science, vol.57, issue.3, pp.603-618, 2000.
DOI : 10.1006/jmsc.2000.0712

D. Gaglio, R. Sherley, and T. Cook, Insects in the diet of the Greater Crested Tern Thalasseus bergii bergii in southern, Africa. Marine Ornithology, vol.43, pp.131-132, 2015.

S. Jackson and P. Ryan, Differential digestion rates of prey by White-chinned Petrels (Procellaria aequinoctialis ), Auk, vol.103, pp.617-619, 1986.

R. Barrett, C. Camphuysen, T. Anker-nilssen, J. Chardine, R. Furness et al., Diet studies of seabirds: a review and recommendations, ICES Journal of Marine Science, vol.64, issue.9, pp.1675-1691, 2007.
DOI : 10.1093/icesjms/fsm152

A. Chiaradia, P. Dann, R. Jessop, and P. Collins, ) chicks on Phillip Island, Victoria, Australia, Emu - Austral Ornithology, vol.77, issue.4, pp.367-371, 2002.
DOI : 10.2307/1366091

A. Batchelor and G. Ross, THE DIET AND IMPLICATIONS OF DIETARY CHANGE OF CAPE GANNETS ON BIRD ISLAND, ALGOA BAY, Ostrich, vol.63, issue.2, pp.45-63, 1984.
DOI : 10.1016/0077-7579(77)90022-9

L. Pichegru, P. Ryan, C. Van-der-lingen, J. Coetzee, Y. Ropert-coudert et al., Foraging behaviour and energetics of Cape gannets Morus capensis feeding on live prey and fishery discards in the Benguela upwelling system, Marine Ecology Progress Series, vol.350, pp.127-136, 2007.
DOI : 10.3354/meps07128

B. Roel and M. Armstrong, , an abundant, underexploited clupeoid species off the coast of southern Africa, South African Journal of Marine Science, vol.11, issue.1, pp.267-287, 1991.
DOI : 10.2989/025776191784287655

N. Klages, A. Willis, and G. Ross, Variability in the diet of the Cape gannet at Bird Island, Algoa Bay, South Africa, South African Journal of Marine Science, vol.12, issue.1, pp.761-771, 1992.
DOI : 10.2989/02577619209504740

P. Ryan, L. Edwards, and L. Pichegru, , Bait Balls and the Allee Effect, Ardea, vol.100, issue.1, pp.89-94, 2012.
DOI : 10.5253/078.100.0113

I. Martins, J. Pereira, J. A. Ramos, and S. Jørgensen, Modelling the effects of different quality prey fish species and of food supply reduction on growth performance of Roseate Tern chicks, Ecological Modelling, vol.177, issue.1-2, pp.95-106, 2004.
DOI : 10.1016/j.ecolmodel.2004.02.002

A. Berruti, L. Underhill, P. Shelton, C. Moloney, and R. Crawford, Seasonal and Interannual Variation in the Diet of Two Colonies of the Cape Gannet (Morus capensis) between 1977-78 and 1989, Colonial Waterbirds, vol.16, issue.2, pp.158-175, 1993.
DOI : 10.2307/1521434

G. Branch, C. Griffiths, M. Branch, and L. Beckley, Two Oceans: A Guide to the Marine Life of Southern Africa. RandomHouse/Struik, Cape Town, 2010.

D. Cram and F. Schülein, Observations on surface-shoaling Cape hake off South West Africa, ICES Journal of Marine Science, vol.35, issue.3, pp.272-275, 1974.
DOI : 10.1093/icesjms/35.3.272

K. Elliott and A. Gaston, Diel vertical migration of prey and light availability constrain foraging in an Arctic seabird, Marine Biology, vol.3, issue.4, pp.1739-1748, 2015.
DOI : 10.3354/ab00082

P. Abelló and E. Macpherson, (Crustacea: Stomatopoda) off Namibia, South African Journal of Marine Science, vol.9, issue.1, pp.169-175, 1990.
DOI : 10.2989/025776190784378934

S. Votier, S. Bearhop, A. Maccormick, N. Ratcliffe, and R. Furness, Assessing the diet of great skuas, Catharacta skua, using five different techniques, Polar Biology, vol.26, pp.20-26, 2003.

Y. Cherel, L. Corre, M. Jaquemet, S. Ménard, F. Richard et al., Resource partitioning within a tropical seabird community: new information from stable isotopes, Marine Ecology Progress Series, vol.366, pp.281-291, 2008.
DOI : 10.3354/meps07587

URL : https://hal.archives-ouvertes.fr/hal-00319362

R. Fijn, J. Van-franeker, and P. Trathan, Dietary variation in chick-feeding and self-provisioning Cape Petrel Daption capense and Snow Petrel Pagodroma nivea at Signy Island, South Orkney Islands, Antarctica . Marine Ornithology, vol.40, pp.81-87, 2012.

G. Orians and N. Pearson, On the theory of central place foraging Analysis of ecological systems, Columbus, vol.2, pp.155-177, 1979.

G. Davoren and A. Burger, Differences in prey selection and behaviour during self-feeding and chick provisioning in rhinoceros auklets, Animal Behaviour, vol.58, issue.4, pp.853-863, 1999.
DOI : 10.1006/anbe.1999.1209

A. Gaston and K. Elliott, Seabird diet changes in northern Hudson Bay, 1981-2013, reflect the availability of schooling prey, Marine Ecology Progress Series, vol.513, pp.211-223, 1981.
DOI : 10.3354/meps10945

L. Hutchings, M. Barange, S. Bloomer, A. Boyd, R. Crawford et al., Multiple factors affecting South African anchovy recruitment in the spawning, transport and nursery areas, South African Journal of Marine Science, vol.19, issue.1, pp.211-225, 1998.
DOI : 10.2989/025776198784126908

D. Gaglio, Investigating the foraging ecology and energy requirements of a seabird population increasing in an intensely exploited marine environment

V. Birth, T. Birth, D. Goulet, D. Cairns, and W. Montevecchi, Ashmole's halo: direct evidence for prey depletion by a seabird, Marine Ecology Progress Series, vol.40, pp.205-208, 1987.
DOI : 10.3354/meps040205

D. Lack, Ecological adaptations for breeding in birds, 1968.

R. Drent and S. Daan, ), Ardea, vol.38, issue.90, pp.225-252, 1980.
DOI : 10.5253/arde.v68.p225

M. Sorensen, J. Hipfner, T. Kyser, and D. Norris, Carry-over effects in a Pacific seabird: stable isotope evidence that pre-breeding diet quality influences reproductive success, Journal of Animal Ecology, vol.17, issue.2, pp.460-467, 2009.
DOI : 10.2307/4088739

G. Passuni, C. Barbraud, A. Chaigneau, H. Demarcq, J. Ledesma et al., Seasonality in marine ecosystems: Peruvian seabirds, anchovy, and oceanographic conditions, Ecology, vol.6, issue.4, pp.182-193, 2016.
DOI : 10.1371/journal.pone.0019966

URL : https://hal.archives-ouvertes.fr/hal-01298551

K. Campbell, Factors influencing the foraging behaviour of African Penguins (Spheniscus demersus) provisioning chicks at Robben Island, South Africa, 2016.

V. Paiva, J. Ramos, T. Catry, P. Pedro, R. Medeiros et al., chick growth and food delivery, Bird Study, vol.53, issue.1, pp.1-11, 2006.
DOI : 10.1080/00063650609461410

E. Dunn, Changes in Fishing Ability of Terns associated with Windspeed and Sea Surface Conditions, Nature, vol.56, issue.5417, pp.520-521, 1973.
DOI : 10.2307/4078793

J. Braby, The Biology and conservation of the Damara Tern in Namibia, 2011.

I. Taylor, Effect of Wind on the Foraging Behaviour of Common and Sandwich Terns, Ornis Scandinavica, vol.14, issue.2, pp.90-96, 1983.
DOI : 10.2307/3676011

C. Van-der-lingen, in the southern Benguela upwelling ecosystem, South African Journal of Marine Science, vol.24, issue.1, pp.301-316, 2002.
DOI : 10.2989/025776102784528691

W. Thorpe, Records of the development of original and unusual feeding methods by wild passerine birds, British Birds, vol.49, pp.389-395, 1956.

Y. Tremblay, A. Thiebault, R. Mullers, and P. Pistorius, Bird-Borne Video-Cameras Show That Seabird Movement Patterns Relate to Previously Unrevealed Proximate Environment, Not Prey, PLoS ONE, vol.49, issue.2, pp.88424-24523892, 2014.
DOI : 10.1371/journal.pone.0088424.s001

URL : http://doi.org/10.1371/journal.pone.0088424

L. Minich, Variation in the feeding of four species of seabird on Machias Seal Island, 2001.

P. Ryan, Perch-hunting Swift Terns, Promerops, vol.307, p.19, 2017.

A. James, Gilchrist, South African Journal of Marine Science, vol.5, issue.1, pp.673-692, 1987.
DOI : 10.2989/025776187784522784

V. Shannon, G. Hempel, C. Moloney, and J. Woods, Benguela: predicting a large marine ecosystem, 2006.

L. Blamey, L. Shannon, J. Bolton, R. Crawford, D. Dufois et al., Ecosystem change in the southern Benguela and the underlying processes, Journal of Marine Systems, vol.144, pp.9-29, 2015.
DOI : 10.1016/j.jmarsys.2014.11.006

A. Lescroël, R. Mathevet, C. Péron, M. Authier, P. Provost et al., Seeing the ocean through the eyes of seabirds: A new path for marine conservation? Marine Policy, pp.212-220, 2016.