Abstract
Giant petrels Macronectes spp. are not thought to be important predators of albatross chicks, although they are known to kill pre-fledging Thalassarche and Phoebetria albatrosses. We report the first records of predation of healthy great albatross Diomedea spp. chicks, killing wandering albatrosses D. exulans at night on sub-Antarctic Marion Island. Breeding success of this species has decreased markedly in the area where attacks occurred, suggesting that giant petrel predation events are a recent phenomenon. Mouse attacks on wandering albatross chicks may have contributed to the development of this hunting technique. We also report the first observations of giant petrel predation on pre-fledging grey-headed albatross T. chrysostoma chicks as well as additional records of sooty albatross P. fusca chicks being targeted. Only adult northern giant petrels M. halli have been confirmed to kill albatross chicks on Marion Island. Given the threatened status of wandering albatrosses, and the importance of Marion Island for this species, monitoring of their breeding success is necessary to assess whether the predation of chicks by giant petrels spreads around the island.
References
Berruti A (1977) Co-existence in the Phoebetria albatrosses at Marion Island. Unpubl. MSc thesis, University of Cape Town, Cape Town
Berruti A (1979) The breeding biologies of sooty albatrosses Phoebetria fusca and P. palpebrata. Emu 79:161–175
Catry P, Phillips RA, Forcada J, Croxall JP (2010) Factors affecting the solution of a parental dilemma in albatrosses: at what age should chicks be left unattended? Anim Behav 72:383–391
Cox JB (1978) Albatross killed by giant petrel. Emu 78:94–95
Forster IP, Phillips RA (2009) Influence of nest location, density and topography on breeding success in the black-browed albatross Thalassarche melanophris. Mar Ornithol 37:213–217
Horning DS Jr, Horning CJ (1974) Bird records of the 1971–73 Snares Islands, New Zealand, Expedition. Notornis 21:13–24
Hunter S (1991) The impact of avian predator-scavengers on king penguin Aptenodytes patagonicus chicks at Marion Island. Ibis 133:343–350
Hunter S, MdeL Brooke (1992) The diet of giant petrels Macronectes spp. at Marion Island Southern Ocean. Col Waterbirds 15:56–65
Jones MGW, Ryan PG (2010) Evidence of mouse attacks on albatross chicks on sub-Antarctic Marion Island. Antarct Sci 22:39–42
Le Bohec C, Gauthier-Clerc M, Gendner J-P, Chatelain N, Le Maho Y (2003) Nocturnal predation of king penguins by giant petrels on the Crozet Islands. Polar Biol 26:587–590
Ryan PG, Sommer E, Breytenbach E (2008) Giant petrels Macronectes hunting northern rockhopper penguins Eudyptes moseleyi at sea. Ardea 96:129–134
Ryan PG, Jones MGW, Dyer BM, Upfold L, Crawford RJM (2009a) Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands. Afr J Mar Sci 31:409–417
Ryan PG, Whittington PA, Crawford RJM (2009b) A tale of two islands: contrasting fortunes for subantarctic skuas at the Prince Edward Islands. Afr J Mar Sci 31:431–437
Sagar PM, Warham J (1998) Breeding biology of southern Buller’s albatrosses at the Snares, New Zealand. In: Robertson GA, Gales R (eds) Albatross biology and conservation. Surrey Beatty, Chipping Norton, pp 92–98
Tickell WLN (2000) Albatrosses. Pica Press, Sussex
van Franeker JA, Creuwels JCS, van der Veer W, Cleland S, Robertson G (2001) Unexpected effects of climate change on the predation of Antarctic petrels. Antarct Sci 13:430–439
Verrill GE (1895) On some birds and eggs collected by Mr Geo. Comer at Gough Island, Kerguelen Island and the island of South Georgia. Trans Conn Acad Arts Sci 9:430–478
Wanless RM, Ryan PG, Altwegg R, Angel A, Cooper J, Cuthbert R, Hilton GM (2009) From both sides: dire demographic consequences of carnivorous mice and longlining for the critically endangered tristan albatrosses on Gough Island. Biol Conserv 142:1710–1718
Acknowledgments
We thank Bruce Dyer and Rob Crawford for the use of nest cameras. Our study was supported by the National Research Foundation and the South African National Antarctic Programme. MC acknowledges funding from the University of Cape Town’s Marine Research Institute. The Department of Environmental Affairs provided logistical support.
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Dilley, B.J., Davies, D., Connan, M. et al. Giant petrels as predators of albatross chicks. Polar Biol 36, 761–766 (2013). https://doi.org/10.1007/s00300-013-1300-1
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DOI: https://doi.org/10.1007/s00300-013-1300-1