Page 321 - Atlas Sea Birds Ver1

AC. 2000a. Initial impact of the Treasure oil spill on seabirds Every B. 1983. Second record of mainland breeding by the jackass
off western South Africa. South African Journal of Marine penguin Spheniscus demersus. Cormorant 11: 62.
Science 22: 157–176. Fairweather TP, van der Lingen CD, Booth AJ, Drapeau L, van
Crawford RJM, Shannon LJ, Whittington PA, Murison G. 2000b. der Westhuizen JJ. 2006. Indicators of sustainable fishing
Factors influencing growth of the African Penguin colony at for South African sardine (Sardinops sagax) and anchovy
Boulders, South Africa, 1985–1999. South African Journal of (Engraulis encrasicolus). African Journal of Marine Science
Marine Science 22: 111–119. 28: 661–680.
Crawford RJM, David JHM, Shannon LJ, Kemper J, Klages NTW, Frost PGH, Siegfried WR, Cooper J. 1976. Conservation of the
Roux J-P, Underhill LG, Ward VL, Williams AJ, Wolfaardt AC. jackass penguin (Spheniscus demersus (L.)). Biological
2001. African Penguins as predators and prey – coping (or Conservation 9: 79–99.
not) with change. South African Journal of Marine Science Hagen CT. 2015. African Penguin (Jackass Penguin) Spheniscus
23: 435–447. demersus. In: Taylor MR, Wanless RM, Peacock F (eds).
Crawford RJM, Barham PJ, Underhill LG, Shannon LJ, Coetzee The Eskom Red Data Book of Birds of South Africa, Lesotho
JC, Dyer BM, Leshoro TM, Upfold L. 2006a. The influence and Swaziland. BirdLife South Africa, Johannesburg, pp.
of food availability on breeding success of African Penguins 146–148.
Spheniscus demersus at Robben Island, South Africa. Jarvis MJF, Cram DL. 1971. Bird Island, Lambert’s Bay, South
Biological Conservation 132: 119–125. Africa: an attempt at conservation. Biological Conservation
Crawford RJM, Hemming M, Kemper J, Klages NTW, Randall 34: 269–272.
RM, Underhill LG, Venter AD, Ward VL, Wolfaardt AC. Kearton C. 1931. The Island of Penguins. Longmans, Green and
2006b. Molt of the African Penguin, Spheniscus demersus, Co., London.
in relation to its breeding season and food availability. Acta Kemper J. 2015. African Penguin (Jackass Penguin) Spheniscus
Zoologica Sinica 52 (Suppl.): 444–447. demersus. In: Simmons RE, Brown CJ, Kemper J (eds).
Crawford RJM, Underhill LG, Upfold L, Dyer BM. 2007. An altered Birds to watch in Namibia: red, rare and endemic species.
carrying capacity of the Benguela upwelling ecosystem for Ministry of Environment and Tourism and Namibia Nature
African penguins (Spheniscus demersus). ICES Journal of Foundation, Windhoek, pp. 183–185.
Marine Science 64: 570–576. Kemper J, Underhill LG, Crawford RJM, Kirkman SP. 2007.
Crawford RJM, Altwegg R, Barham BJ, Barham PJ, Durant JM, Revision of the conservation status of seabirds and seals
Dyer BM, Geldenhuys D, Makhado AB, Pichegru L, Ryan breeding in the Benguela ecosystem. In: Kirkman SP (ed.).
PG, Underhill LG, Upfold L, Visagie J, Waller LJ, Whittington Final Report of the BCLME (Benguela Current Large Marine
PA. 2011. Collapse of South Africa’s penguins in the early Ecosystem) Project on Top Predators as Biological Indicators
21 century: a consideration of food availability. African of Ecosystem Change in the BCLME. Avian Demography
st
Journal of Marine Science 33: 139–156. Unit, Cape Town, pp. 697–704.
Crawford RJM, Kemper J, Underhill LG. 2013. African Penguin Loutit R, Boyer D. 1985. Mainland breeding by Jackass Penguins
(Spheniscus demersus). In: Garcia Borboroglu P, Boersma Spheniscus demersus in South West Africa / Namibia.
PD (eds). Penguins Natural History and Conservation. Cormorant 13: 27–30.
University of Washington Press, Seattle and London, pp. Loutit R, Boyer D, Brooke RK. 1986. Cape Cormorant
211–231. Phalacrocorax capensis and Jackass Penguin Spheniscus
Crawford RJM, Makhado AB, Waller LJ, Whittington PA. 2014. demersus breeding colonies on the Namibian mainland
Winners and losers – responses to recent environmental coast around Sylvia Hill. Cormorant 13: 185–187.
change by South African seabirds that compete with purse- Ludynia K, Roux J-P, Jones R, Kemper J, Underhill LG. 2010.
seine fisheries for food. Ostrich 85: 111–117. Surviving off junk: low-energy prey dominates the diet of
Crawford RJM, Sydeman WJ, Thompson SA, Sherley RB, Makhado African penguins Spheniscus demersus at Mercury Island,
AB. 2019. Food habits of an endangered seabird indicate Namibia, between 1996 and 2009. African Journal of Marine
recent poor availability of abundant forage resources. ICES Science 32: 563–572.
Journal of Marine Science 76: 1344–1352. Ludynia K, Waller LJ, Sherley RB, Abadi F, Galada Y, Geldenhuys
Crawford RJM, Sydeman WJ, Tom DB, Thayer JA, Sherley RB, D, Crawford RJM, Shannon LJ, Jarre A. 2014. Processes
Shannon LJ, McInnes AM, Makhado AB, Hagen C, Furness influencing the population dynamics and conservation of
RW, Carpenter-Kling T, Saraux C. 2022. Food limitation of African Penguins on Dyer Island, South Africa. African
seabirds in the Benguela ecosystem and management of Journal of Marine Science 36: 253–267.
their prey base. Namibian Journal of Environment 6A: 1–13. Makhado AB, Crawford RJM, Waller LJ, Underhill LG. 2013. An
Cury PM, Boyd IL, Bonhommeau S, Anker-Nilssen T, Crawford assessment of the impact of predation by Cape fur seals
RJM, Furness RW, Mills JA, Murphy EJ, Österblom H, Arctocephalus pusillus pusillus on seabirds at Dyer Island,
Paleczny M, Piatt JF, Roux J-P, Shannon LJ, Sydeman WJ. South Africa. Ostrich 84: 191–198.
2011.Global seabird response to forage fish depletion – one- Makhado AB, Braby R, Dyer BM, Kemper J, McInnes AM, Tom D,

third for the birds. Science 334: 1703–1706. Crawford RJM. 2021. Seabirds of the Benguela ecosystem:
Durant JM, Crawford RJM, Wolfaardt AC, Agenbag CJ, Visagie J, utilisation, long-term changes and challenges. In: Mikkola H
Upfold L, Stenseth NC. 2010. Influence of feeding conditions (ed.). Birds – Challenges and Opportunities for Business,
on breeding of African penguins – importance of adequate Conservation and Research. InTech Open, London, UK, pp.
local food supplies. Marine Ecology Progress Series 420: 51–70.
263−271. Makhado AB, Tom DB, Crawford RJM. 2024. Harvests of eggs of
Dyer BM, Cooper J, Crawford RJM, Sherley RB, Somhlaba S, African Penguins (Spheniscus demersus) in the Benguela
Cockcroft A, Upfold L, Makhado AB. 2019. Geographical upwelling ecosystem. This volume.
and temporal variation in the diet of Bank Cormorants McInnes AM, Ryan PG, Lacerda M, Pichegru L. 2019. Targeted
Phalacrocorax neglectus in South Africa. Ostrich 90: 373– prey fields determine foraging effort thresholds of a marine
390. diver: important cues for the sustainable management of
Dyer BM, Crawford RJM, Hagen C, Kotze PGH, Spencer K, Upfold fisheries. Journal of Applied Ecology 56: 2206–2215.
L, Visagie JL, Makhado AB. 2024. Coastal breeding sites Molini U, Aikukutu G, Roux J-P, Kemper J, Ntahonshikira C,
of seabirds between Cape Agulhas and Mossel Bay. This Marruchella G, Khaiseb S, Cattoli G, Dundon WG. 2020.
volume. Avian Influenza H5N8 outbreak in African penguins

315