The composition, energy content and function of the stomach oils of petrels (order, procellariiformes)

Warham, John; Watts, Rodney; Dainty, R.J.

doi:10.1016/0022-0981(76)90081-2

Cited by 81 publications

(55 citation statements)

References 28 publications

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“…et s!. 1976, Clarke & Prince 1980, Furness 1994 in the diet of shearwaters in August could therefore reflect a n increase in prey selectivity as breeding season progresses, and the subject clearly deserves further investigation.…”

Section: Diet Of Cory's Shearwatersmentioning

confidence: 99%

“…Hislop et al 1991). For the purpose of this crude assessment, we adopted an average value of 6 kJ g-' wet weight, based on values obtained on several fish species (Warham et al 1976, Clarke & Prince 1980, Hislop et al 1991). This assumption is !ike!y to produce small errors, compared to those arising due to the imprecision in the shearwater population estimates.…”

Section: Introductionmentioning

confidence: 99%

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Diet and feeding ecology of Cory's shearwater Calonectris diomedea in the Azores, north-east Atlantic

Granadeiro¹,

Monteiro²,

Furness³

1998

Mar. Ecol. Prog. Ser.

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Diet and feeding ecology of Cory's shearwaterCalonectris diomedea in the Azores, north-east Atlantic Jose P. G r a n a d e i r o l r 2 , * , Luis R. ~o n t e i r o~, Robert W. Furness2'Instituto da Conservaqao da Natureza, Rua Filipe Folque. 46.3", P-1050 Lisboa, Portugal 'Ornithology Group, Institute of Biomedical and Life Sciences, Graham Kerr Building, University of Glasgow.Glasgow G12 8 0 0 , United Kingdom "epartamento de Oceanografia e Pescas, Universidade dos Aqores, P-9900 Horta, Portugal ABSTRACT: Cory's shearwater Calonectris diomedea is the most abundant pelagic seabird in the Azores archipelago. We examined their diet in March and August. Fish were present in more than 90% of the samples analysed, but only included 5 species. Two small pelagic species, boarfish Capros aper and trumpet fish .\4acrorharnphosus sp., were the most common prey, accounting for more than 85 % of the food items consumed in March and August. Due to their small size (

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Section: Diet Of Cory's Shearwatersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diet and feeding ecology of Cory's shearwater Calonectris diomedea in the Azores, north-east Atlantic

Granadeiro¹,

Monteiro²,

Furness³

1998

Mar. Ecol. Prog. Ser.

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“…Total lipids of stomach oils were extracted following Allan et al (2010). Lipid classes were then isolated by preparative thin-layer chromatography, and bands of wax esters, triacylglycerols and diacylglycerol ethers were scraped off, eluted and the 3 lipid classes weighed; stomach oils are typically rich in neutral lipids (Warham et al 1976, Connan et al 2007). Fatty acid methyl esters were prepared from triacylglycerol fractions using methods detailed in Allan et al (2010).…”

Section: Laboratory Analysesmentioning

confidence: 99%

“…identification of prey remains) provides information about the most recent meals of an individual. Procellariiform species are unique in that most of them are able to store oil of dietary origin in their proventriculus (Warham et al 1976) and the fatty acid signatures of these stomach oils provide dietary information about the last foraging trip (Connan et al 2005(Connan et al , 2007. Carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios have been used as indicators of foraging areas and trophic level, respectively (e.g.…”

Section: Introductionmentioning

confidence: 99%

Combined stomach content, lipid and stable isotope analyses reveal spatial and trophic partitioning among three sympatric albatrosses from the Southern Ocean

Connan¹,

McQuaid²,

Bonnevie³

et al. 2014

Mar. Ecol. Prog. Ser.

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A combination of dietary techniques that integrate data on food and feeding habits over days, weeks and months was used to investigate resource partitioning among 3 sympatric albatrosses, namely the grey-headed Thalassarche chrysostoma (GHA), light-mantled sooty Phoebetria palpebrata (LMSA) and sooty Phoebetria fusca (SA) albatrosses. These medium-size albatrosses typically breed every 2 yr, and Marion Island (southern Indian Ocean) is the only breeding site where the 3 species are accessible. Stomach content analysis provided dietary information about the most recent meal, analysis of fatty acids in stomach oils about the last foraging trip, and carbon and nitrogen stable isotope values of blood and feathers about the chick-rearing (breeding) and moulting periods, respectively. The combination of techniques highlighted a complex pattern regarding the spatial and trophic segregation between the 3 species. During both seasons, SA were spatially segregated from LMSA and GHA, foraging farther north (in subantarctic and subtropical areas) than the 2 other species (subantarctic and Antarctic waters). When feeding for themselves during the breeding season (blood isotopic signatures), adults showed a clear spatial segregation. When bringing back food for their chicks (stomach contents), trophic segregation became obvious, with the 2 Phoebetria species specializing mostly on squids. The results illustrate how sympatrically breeding birds can show niche partitioning through both spatial segregation and prey specialization.

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“…In Antarctica, mumiyo, a waxy accumulation of proventricular oil ejected by nesting snow petrels (Pagodroma nivea) (Warham et al 1976), has been radiocarbon-dated to estimate the timing of the initial deglaciation of fringe areas of the continent and establishment of the snow petrel populations. Conventional radiocarbon dating of mumiyo from the Untersee Oasis of central Dronning Maud Land (71 °S , 13 °E) recorded discontinuous petrel occupation since 34 kyr BP (Hiller et al 1988); two samples from the Robertsoskollen nunatak group, northern Ahlmannryggen, Dronning Maud Land (� 71 °S, 3°E), suggested that occupation began in about 7 kyr BP (Ryan et al 1992) and in the Bunger Hills, Wilkes Land (66°10'5, 101…”

Section: Introductionmentioning

confidence: 99%

Radiocarbon dating of mumiyo from the Vestfold Hills, East Antarctica

Kiernan¹,

McConnell²,

Lawson³

2002

PPRST

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Accelerator mass spectrometer (AMS) radiocarbon dating of mumiyo deposited by snow petrels at nesting sites in the Vestfold Hills indicates the colonies were established after 4800 yr BP (uncorrected for marine reservoir effect). Sites on the highest hills were probably established first, but colonisation took place long after initial deglaciation, which was well advanced by 12.5k yr BP. The reason for late colonisation is not known. Perhaps older sites exist, but current evidence suggests the main colonisation occurred after the mid-Holocene re-advance of the S0rsdal Glacier. 0 11 C values indicate a diet of krill.

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The composition, energy content and function of the stomach oils of petrels (order, procellariiformes)

Cited by 81 publications

References 28 publications

Diet and feeding ecology of Cory's shearwater Calonectris diomedea in the Azores, north-east Atlantic

Diet and feeding ecology of Cory's shearwater Calonectris diomedea in the Azores, north-east Atlantic

Combined stomach content, lipid and stable isotope analyses reveal spatial and trophic partitioning among three sympatric albatrosses from the Southern Ocean

Radiocarbon dating of mumiyo from the Vestfold Hills, East Antarctica

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