Oophagy (/oʊˈɒfədʒi/oh-OFF-ə-jee) sometimes ovophagy, literally "egg eating", is the practice of embryos feeding on eggs produced by the ovary while still inside the mother's uterus.[1] The word oophagy is formed from the classical Greekᾠόν (ōion, "egg") and classical Greek φᾱγεῖν (phāgein, "to eat"). In contrast, adelphophagy is the cannibalism of a multi-celled embryo.[1]
This practice may lead to larger embryos or prepare the embryo for a predatory lifestyle.[2]
There are variations in the extent of oophagy among the different shark species. The grey nurse shark (Carcharias taurus) practices intrauterine cannibalism, the first developed embryo consuming both additional eggs and any other developing embryos. Slender smooth-hounds (Gollum attenuatus), form egg capsules which contain 30-80 ova, within which only one ovum develops; the remaining ova are ingested and their yolks stored in its external yolk sac. The embryo then proceeds to develop normally, without ingesting further eggs.[1]
Oophagy is also used as a synonym of egg predation practised by some snakes and other animals. Similarly, the term can be used to describe the destruction of non-queen eggs in nests of certain social wasps, bees, and ants. This is seen in the wasp species Polistes biglumis and Polistes humilis.[3] Oophagy has been observed in Leptothorax acervorum and Parachartergus fraternus, where oophagy is practiced to increase energy circulation and provide more dietary protein.[4][5]Polistes fuscatus use oophagy as a method to establish a dominance hierarchy; dominant females will eat the eggs of subordinate females such that they no longer produce eggs, possibly due to the unnecessary expenditure of energy and resources.[6] This behavior has also been observed in some bee species. Such bee species include Xylocopa sulcatipes[7] and Bombus ruderatus, where queen bees will eat larvae deposited by workers or eject them from the nest in order to maintain dominance over the colony.[8]
^ abcdChristina L. Conrath. "Elasmobranch Fisheries Management Techniques Chapter 7" (PDF). Retrieved 3 August 2006.
^Wourms, J. P. (1981) Viviparity: The maternal-fetal relationship in fishes. Am. Zool. 21:473-515.
^"Spring Behaviour of an Australian Paper Wasp, Polistes humilis synoecus : Colony Founding by Haplometrosis and Utilization of Old Nests". June 25, 1986. Retrieved October 9, 2014.
^Mateus, Sidnei, Fernando Barbosa Noll, and Ronaldo Zucchi. "Caste Flexibility and Variation According to the Colony Cycle in the Swarm-founding Wasp, Parachartergus Fraternus (Gribodo) (Hymenoptera: Vespidae: Epiponini)." Journal of the Kansas Entomological Society 77.4 (2004): 470-83. Web. 11 Oct. 2014.
^Andrew F. G. Bourke (1991). "Queen behaviour, reproduction and egg cannibalism in multiple-queen colonies of the ant Leptothorax acervorum". Animal Behaviour. 42 (2): 295–310. doi:10.1016/S0003-3472(05)80561-5. S2CID 53168799.
^West-Eberhard, M. J. 1969 The social biology of polistine wasps. Mis . Publ.Zool. Univ. Michigan 140, 1-101
^Keasar, Tamar (2010). "Large carpenter bees as agricultural pollinators". Psyche: A Journal of Entomology.
^Pomeroy, Nelson (1979-08-01). "Brood Bionomics of Bombus Ruderatus in New Zealand (Hymenoptera: Apidae)". The Canadian Entomologist. 111 (8): 865–874. doi:10.4039/Ent111865-8. ISSN 1918-3240.
October 16, 2023
oophagy, confused, with, oophaga, sometimes, ovophagy, literally, eating, practice, embryos, feeding, eggs, produced, ovary, while, still, inside, mother, uterus, word, oophagy, formed, from, classical, greek, ᾠόν, ōion, classical, greek, φᾱγεῖν, phāgein, cont. Not to be confused with Oophaga Oophagy oʊ ˈ ɒ f e dʒ i oh OFF e jee sometimes ovophagy literally egg eating is the practice of embryos feeding on eggs produced by the ovary while still inside the mother s uterus 1 The word oophagy is formed from the classical Greek ᾠon ōion egg and classical Greek fᾱgeῖn phagein to eat In contrast adelphophagy is the cannibalism of a multi celled embryo 1 Oophagy is thought to occur in all sharks in the order Lamniformes and has been recorded in the bigeye thresher Alopias superciliosus the pelagic thresher A pelagicus the shortfin mako Isurus oxyrinchus and the porbeagle Lamna nasus among others 1 It also occurs in the tawny nurse shark Nebrius ferrugineus and in the family Pseudotriakidae This practice may lead to larger embryos or prepare the embryo for a predatory lifestyle 2 There are variations in the extent of oophagy among the different shark species The grey nurse shark Carcharias taurus practices intrauterine cannibalism the first developed embryo consuming both additional eggs and any other developing embryos Slender smooth hounds Gollum attenuatus form egg capsules which contain 30 80 ova within which only one ovum develops the remaining ova are ingested and their yolks stored in its external yolk sac The embryo then proceeds to develop normally without ingesting further eggs 1 Oophagy is also used as a synonym of egg predation practised by some snakes and other animals Similarly the term can be used to describe the destruction of non queen eggs in nests of certain social wasps bees and ants This is seen in the wasp species Polistes biglumis and Polistes humilis 3 Oophagy has been observed in Leptothorax acervorum and Parachartergus fraternus where oophagy is practiced to increase energy circulation and provide more dietary protein 4 5 Polistes fuscatus use oophagy as a method to establish a dominance hierarchy dominant females will eat the eggs of subordinate females such that they no longer produce eggs possibly due to the unnecessary expenditure of energy and resources 6 This behavior has also been observed in some bee species Such bee species include Xylocopa sulcatipes 7 and Bombus ruderatus where queen bees will eat larvae deposited by workers or eject them from the nest in order to maintain dominance over the colony 8 See also EditSiblicideNotes Edit a b c d Christina L Conrath Elasmobranch Fisheries Management Techniques Chapter 7 PDF Retrieved 3 August 2006 Wourms J P 1981 Viviparity The maternal fetal relationship in fishes Am Zool 21 473 515 Spring Behaviour of an Australian Paper Wasp Polistes humilis synoecus Colony Founding by Haplometrosis and Utilization of Old Nests June 25 1986 Retrieved October 9 2014 Mateus Sidnei Fernando Barbosa Noll and Ronaldo Zucchi Caste Flexibility and Variation According to the Colony Cycle in the Swarm founding Wasp Parachartergus Fraternus Gribodo Hymenoptera Vespidae Epiponini Journal of the Kansas Entomological Society 77 4 2004 470 83 Web 11 Oct 2014 Andrew F G Bourke 1991 Queen behaviour reproduction and egg cannibalism in multiple queen colonies of the ant Leptothorax acervorum Animal Behaviour 42 2 295 310 doi 10 1016 S0003 3472 05 80561 5 S2CID 53168799 West Eberhard M J 1969 The social biology of polistine wasps Mis Publ Zool Univ Michigan 140 1 101 Keasar Tamar 2010 Large carpenter bees as agricultural pollinators Psyche A Journal of Entomology Pomeroy Nelson 1979 08 01 Brood Bionomics of Bombus Ruderatus in New Zealand Hymenoptera Apidae The Canadian Entomologist 111 8 865 874 doi 10 4039 Ent111865 8 ISSN 1918 3240 Retrieved from https en wikipedia org w index php title Oophagy amp oldid 1134701074, wikipedia, wiki, book, books, library,
