Egg dumping by predatory insects

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F11%3A00375945" target="_blank" >RIV/67179843:_____/11:00375945 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1111/j.1365-3032.2011.00780.x" target="_blank" >http://dx.doi.org/10.1111/j.1365-3032.2011.00780.x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/j.1365-3032.2011.00780.x" target="_blank" >10.1111/j.1365-3032.2011.00780.x</a>

Result language
angličtina
Original language name
Egg dumping by predatory insects
Original language description
Synovigenic insects resorb oocytes when food is scarce and mature oocytes when food is plentiful. These two antagonistic processes allow an optimal allocation of resources to reproduction and somatic functions. Unlike hymenopteran parasitoids, ladybirdscannot resorb mature oocytes present in the oviducts. Is the energy contained in these oocytes lost or is there a mechanism for recovering it when needed? Females of two species of ladybird beetles Adalia bipunctata (L.) and Adalia decempunctata (L.) that are starved for >24 h lay single infertile eggs, which they immediately eat, and these eggs comprise the mature oocytes in the oviducts at the onset of starvation. This behaviour has some similarities to egg dumping reported in herbivorous insects andis part, in ladybird beetles, of a process to retrieve energy invested in reproduction. Such behaviour may exist in other predatory synovigenic insects species that do not invest in maternal care.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EH - Ecology - communities
OECD FORD branch
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Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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