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- Stomach_oil abstract "Stomach oil is the light oil composed of neutral dietary lipids found in the proventriculus (fore-gut) of birds in the order Procellariiformes. All albatrosses, procellarids (gadfly petrels and shearwaters) and storm petrels use the oil. The only Procellariiformes that do not are the diving petrels. The chemical make up of stomach oil varies from species to species and between individuals, but almost always contains both wax esters and triglycerides. Other compounds found in stomach oil include glycerol ethers, pristane and squalene. Stomach oil has low viscosity and will solidify into a hard wax if allowed to cool. It was once thought that stomach oil was a secretion of the proventriculus, but it is now known to be a residue of the diet created by digestion of the prey items such as krill, squid, copepods and fish. It is thought to serve several functions for Procellariiformes, primarily as an energy store; its calorific value is around 9.6 kcal per gram, which is only slightly lower than the value for diesel oil. For this reason a great deal more energy can be stored in oil form as opposed to undigested prey. This can be a real advantage for species that range over huge distances to provide food for hungry chicks, or as a store for lean times when ranging across the sea looking for patchy areas of prey.Surface nesting petrels and albatross can eject this oil out of their mouths (not nostrils, as has sometimes been suggested) towards attacking predators or conspecific rivals. This oil can be deadly to birds, as it can cause matting of the feathers leading to the loss of flight or water repellency. Against threatening mammals (including humans) it is not outright dangerous, but due to its extremely offensive smell it is usually highly repulsive and liable to spoil a predator's hunting success for quite some time. The smell of the hydrophobic oil cannot be removed with water, and can persist (e.g. on clothing) for months or even years.".
- Stomach_oil thumbnail Northern_fulmar_display.jpg?width=300.
- Stomach_oil wikiPageExternalLink ai_n8765697.
- Stomach_oil wikiPageExternalLink ProNZES24_84.pdf.
- Stomach_oil wikiPageID "2901624".
- Stomach_oil wikiPageLength "2954".
- Stomach_oil wikiPageOutDegree "35".
- Stomach_oil wikiPageRevisionID "629908274".
- Stomach_oil wikiPageWikiLink Albatross.
- Stomach_oil wikiPageWikiLink Biological_specificity.
- Stomach_oil wikiPageWikiLink Calorie.
- Stomach_oil wikiPageWikiLink Category:Oils.
- Stomach_oil wikiPageWikiLink Category:Ornithology.
- Stomach_oil wikiPageWikiLink Category:Procellariiformes.
- Stomach_oil wikiPageWikiLink Conspecific.
- Stomach_oil wikiPageWikiLink Copepod.
- Stomach_oil wikiPageWikiLink Diesel_fuel.
- Stomach_oil wikiPageWikiLink Digestion.
- Stomach_oil wikiPageWikiLink Diving_petrel.
- Stomach_oil wikiPageWikiLink Ester.
- Stomach_oil wikiPageWikiLink Ether_lipid.
- Stomach_oil wikiPageWikiLink Fish.
- Stomach_oil wikiPageWikiLink Glycerol_ether.
- Stomach_oil wikiPageWikiLink Hydrophobe.
- Stomach_oil wikiPageWikiLink Hydrophobic.
- Stomach_oil wikiPageWikiLink Krill.
- Stomach_oil wikiPageWikiLink Lipid.
- Stomach_oil wikiPageWikiLink Mammal.
- Stomach_oil wikiPageWikiLink Oil.
- Stomach_oil wikiPageWikiLink Order_(biology).
- Stomach_oil wikiPageWikiLink Petrel.
- Stomach_oil wikiPageWikiLink Predation.
- Stomach_oil wikiPageWikiLink Predator.
- Stomach_oil wikiPageWikiLink Pristane.
- Stomach_oil wikiPageWikiLink Procellariidae.
- Stomach_oil wikiPageWikiLink Procellariiformes.
- Stomach_oil wikiPageWikiLink Proventriculus.
- Stomach_oil wikiPageWikiLink Species.
- Stomach_oil wikiPageWikiLink Squalene.
- Stomach_oil wikiPageWikiLink Squid.
- Stomach_oil wikiPageWikiLink Storm_petrel.
- Stomach_oil wikiPageWikiLink Triglyceride.
- Stomach_oil wikiPageWikiLink Wax.
- Stomach_oil wikiPageWikiLink File:Northern_fulmar_display.jpg.
- Stomach_oil wikiPageWikiLinkText "Stomach oil".
- Stomach_oil wikiPageWikiLinkText "oil".
- Stomach_oil wikiPageWikiLinkText "stomach oil".
- Stomach_oil hasPhotoCollection Stomach_oil.
- Stomach_oil wikiPageUsesTemplate Template:Procellariiformes.
- Stomach_oil subject Category:Oils.
- Stomach_oil subject Category:Ornithology.
- Stomach_oil subject Category:Procellariiformes.
- Stomach_oil hypernym Oil.
- Stomach_oil type Liquid.
- Stomach_oil type Oil.
- Stomach_oil type Subfield.
- Stomach_oil comment "Stomach oil is the light oil composed of neutral dietary lipids found in the proventriculus (fore-gut) of birds in the order Procellariiformes. All albatrosses, procellarids (gadfly petrels and shearwaters) and storm petrels use the oil. The only Procellariiformes that do not are the diving petrels. The chemical make up of stomach oil varies from species to species and between individuals, but almost always contains both wax esters and triglycerides.".
- Stomach_oil label "Stomach oil".
- Stomach_oil sameAs Stomakoleo.
- Stomach_oil sameAs Minyak_perut.
- Stomach_oil sameAs Óleo_estomacal.
- Stomach_oil sameAs m.08b902.
- Stomach_oil sameAs Magolja.
- Stomach_oil sameAs Q3848473.
- Stomach_oil sameAs Q3848473.
- Stomach_oil wasDerivedFrom Stomach_oil?oldid=629908274.
- Stomach_oil depiction Northern_fulmar_display.jpg.
- Stomach_oil isPrimaryTopicOf Stomach_oil.