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Carpenter-Kling  T,  de  Blocq A,  Hagen  C,  Harding  C,  Morris  T,   Crawford RJM, Randall RM, Cook TR, Ryan PG, Dyer BM, Fox R,
                      Pichegru  L,  Roberts  J,  Ryan  PG,  Wanless  RM,  McInnes   Geldenhuys D, Huisamen J, McGeorge C, Upfold L, Visagie
                      A.  2022.  Important  marine  areas  for  endangered  African   J, Waller LJ, Whittington PA, Wilke CG, Makhado AB. 2016.
                      penguins  before  and  after the crucial  stage of moulting.   Cape cormorants decrease, move east and adapt foraging
                      Scientific Reports 12: 9489.                      strategies following eastward displacement of  their main
                  Crawford RJM. 2007. Food, fishing and seabirds in the Benguela   prey. African Journal of Marine Science 38: 373–383.
                      upwelling  system.  Journal  of  Ornithology  148  (Suppl  2):   Crawford  RJM,  Dyer  BM,  Geldenhuys  L,  Oosthuizen  WH,
                      S253–S260.                                        Makhado AB. 2018. Seabird breeding populations decrease
                  Crawford RJM. 2009. A recent increase of swift terns Thalasseus   along the arid coastline of South  Africa’s Northern Cape
                      bergii  off  South  Africa  –  the  possible  influence  of  an   province. Ostrich 89: 299–305.
                      altered  abundance  and  distribution  of  prey.  Progress  in   Crawford RJM, Sydeman WJ, Thompson SA, Sherley RB, Makhado
                      Oceanography 83: 398–403.                         AB.  2019.  Food  habits  of  an  endangered  seabird  indicate
                  Crawford RJM, Cochrane KL. 1990. Onset of breeding by Cape   recent poor availability of abundant forage resources. ICES
                      Gannets Morus capensis influenced by availability of nesting   Journal of Marine Science 76: 1344–1352.
                      material. Ostrich 61: 147–149.                Crawford RJM, Sydeman WJ, Tom DB, Thayer JA, Sherley RB,
                  Crawford RJM, Shelton PA, Cooper J, Brooke RK. 1983. Distribution,   Shannon LJ, McInnes AM, Makhado AB, Hagen C, Furness
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                      174.                                              their prey base. Namibian Journal of Environment 6 A: 1–13.
                  Crawford  RJM,  David  JHM,  Williams  AJ,  Dyer  BM.  1989.   Da Rocha N, Oppel S, Prince S, Matjila S, Shaanika TM, Naomab
                      Competition  for space: recolonising  seals  displace   C, Yates O, Paterson JRB, Shimooshili K, Frans E, Kashava
                      endangered,  endemic  seabirds  off  Namibia.  Biological   S, Crawford  R. 2021.  Reduction  in seabird  mortality in
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                  Crawford  RJM,  Cooper  J,  Dyer  BM.  1995.  Conservation  of  an   regulation. Biological Conservation 253: 108915.
                      increasing  population  of  Great  White  Pelican  Pelecanus   David  JHM.  1989.  Seals.  In:  Payne  AIL,  Crawford  RJM  (eds).
                      onocrotalus in South Africa's Western Cape. South African   Oceans  of  Life  off  Southern Africa.  Vlaeberg,  Cape Town,
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                  Crawford RJM, Davis SA, Harding R, Jackson LF, Leshoro TM,   Dean  WRJ,  Dowsett  RJ,  Sakko  A,  Simmons  RE.  2002.  New
                      Meÿer MA, Randall RM, Underhill LG, Upfold L, van Dalsen   records and amendments to the birds of Angola. Bulletin of
                      AP, van der Merwe E, Whittington PA, Williams AJ, Wolfaardt   the British Ornithologists’ Club 122: 180–185.
                      AC. 2000. Initial impact of the Treasure oil spill on seabirds   Dyer  BM,  Cooper  J,  Crawford  RJM,  Sherley  RB,  Somhlaba  S,
                      off  western  South Africa.  South African  Journal  of  Marine   Cockcroft  A,  Upfold  L,  Makhado  AB.  2019.  Geographical
                      Science 22: 157–176.                              and temporal variation in the diet of Bank Cormorants
                  Crawford RJM, Dundee BL, Dyer BM, Klages NTW, Meÿer MA,   Phalacrocorax neglectus in South Africa. Ostrich 90: 373–
                      Upfold L. 2007a.  Trends in numbers of  Cape Gannets   390.
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                      Marine Science 64: 169–177.                       between Cape Agulhas and Mossel Bay. This volume.
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                      capensis) over a 50-year period, 1956–57 to 2006–07. Emu   stranded following  the  collapse of  the  sardine  Sardinops
                      107: 253–261.                                     sagax  (Pappe,  1854)  stock  off  the  northern  Benguela
                  Crawford RJM, Cockroft AC, Dyer BM, Upfold L. 2008. Divergent   upwelling system: a review. Journal of Marine Systems 224:
                      trends in  Bank Cormorants  Phalacrocorax  neglectus   103623.
                      breeding  in South  Africa’s Western Cape consistent with   Fox C, Taylor RH, Crawford RJM. 2024. Breeding by seabirds at
                      a distributional shift of rock lobsters Jasus lalandii. African   Lake St Lucia, KwaZulu-Natal. This volume.
                      Journal of Marine Science 30: 161–166.        Frost PGH, Siegfried WR, Cooper J. 1976. Conservation of the
                  Crawford RJM, Underhill LG, Altwegg R, Dyer BM, Upfold L. 2009.   jackass penguin (Spheniscus  demersus  (L.)).  Biological
                      Trends in numbers of Kelp Gulls  Larus  dominicanus  off   Conservation 9: 79–99.
                      western South Africa, 1978–2007. Ostrich 80: 139–143.  Green DB, Coetzee JC, Rishworth GM, Pistorius PA. 2015.Foraging
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                      Dyer  BM,  Geldenhuys  D,  Makhado AB,  Pichegru  L,  Ryan   features, prey availability  and marine protected areas.
                      PG, Underhill LG, Upfold L, Visagie J, Waller LJ, Whittington   Marine Ecology Progress Series 537: 277–288.
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                  Crawford  RJM,  Kemper  J,  Underhill  LG.  2013. African  Penguin   Society of London B: Biological Sciences 275: 1149–1156.
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                      211–231.                                          https://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.
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                      Winners and losers – responses  to recent environmental   IUCN. 2022. IUCN Red List Categories and Criteria: Version 3.1.
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                  Crawford  RJM,  Makhado  AB,  Whittington  PA,  Randall  RM,   Johnson RL, Venter A, Bester MN, Oosthuizen WH. 2006. Seabird
                      Oosthuizen WH, Waller LJ. 2015. A changing distribution of   predation by white shark and Cape fur seal at Dyer Island.
                      seabirds in South Africa – the possible impact of climate and   South African Journal of Wildlife Research 36: 23–32.
                      its consequences. Frontiers in Ecology and Evolution 3: 10,   Kemper J. 2015. African Penguin (Jackass Penguin) Spheniscus
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