Giant petrels as predators of albatross chicks
| Autor: | Sylvie P. Vandenabeele, Lieze Swart, John Cooper, Ben J. Dilley, Yan Ropert-Coudert, Delia Davies, Marienne de Villiers, Peter G. Ryan, Maëlle Connan |
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| Přispěvatelé: | Percy FitzPatrick Institute of African Ornithology, University of Cape Town, Department of Zoology and Entomology, Rhodes University, Grahamstown, Department of Botany and Zoology, Stellenbosch University, Animal Demography Unit, Department of Environmental Affairs, Department of Biosciences, Swansea University, Département Ecologie, Physiologie et Ethologie (DEPE-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), National Research Foundation, South African National Antarctic Programme |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
animal structures Zoology Albatross 010603 evolutionary biology 01 natural sciences Predation Giant petrel Phoebetria diomedea exulans 14. Life underwater macronectes halli ComputingMilieux_MISCELLANEOUS chick predation [SDV.EE]Life Sciences [q-bio]/Ecology environment breeding success biology Sooty albatross Ecology 010604 marine biology & hydrobiology biology.organism_classification prince edward islands Great albatross Wandering albatross Threatened species [SDE]Environmental Sciences General Agricultural and Biological Sciences |
| Zdroj: | Polar Biology Polar Biology, Springer Verlag, 2013, 36 (5), pp.761-766. ⟨10.1007/s00300-013-1300-1⟩ |
| ISSN: | 0722-4060 1432-2056 |
| DOI: | 10.1007/s00300-013-1300-1⟩ |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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