title: Selectivity of flesh-footed shearwaters for plastic colour: Evidence for differential provisioning in adults and fledglings.
abstract: The ingestion of plastic by seabirds has been used as an indicator of population and ocean health. However, few studies have examined adults and juveniles of the same species concurrent with the availability of plastic in the local marine environment. In King George Sound (KGS), Western Australia, 13% of adult flesh-footed shearwaters (Ardenna carneipes) and 90% of fledglings contained plastic items in their digestive tract. On Lord Howe Island (LHI), New South Wales, 75% of adult shearwaters and 100% of fledglings contained plastic. Ingested items were assessed using Jaccard's Index (where J = 0 indicates complete dissimilarity and J = 1 complete similarity). The colour of items ingested by self- and chick-provisioning shearwaters from KGS exhibited broad overlap with plastic available in the local environment (J = 0.78-0.80), and plastic in adults and fledglings from LHI were less similar to those available (J = 0.31-0.58). Additional data on seabird colour selection would improve our understanding of the factors influencing the behaviour of ingesting plastic, and its contribution to the decline of some species.
authors.affiliation: Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Sandy Bay, Tasmania, 7004, Australia. Electronic address: Jennifer.Lavers@utas.edu.au.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Lavers
authors.affiliation: RSPB Centre for Conservation Science, Royal Society for the Protection of Birds, The Lodge, Sandy, Bedfordshire, SG19 2DL, United Kingdom.
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Bond
mesh_terms: D000375:Aging; D000818:Animals; D046091:Charadriiformes / Q000502:physiology*; D003116:Color; D004784:Environmental Monitoring; D005766:Gastrointestinal Contents / Q000737:chemistry*; D010969:Plastics; D014866:Waste Products; D014873:Water Pollutants
chemical_list: D010969:Plastics; D014866:Waste Products; D014873:Water Pollutants
keywords: Behaviour; Colour preference; Feeding; Plastics; Seabirds; Selection