Cannibalism, optimal egg size and vulnerable developmental stages in insect predators

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F12%3A00390516" target="_blank" >RIV/67179843:_____/12:00390516 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Cannibalism, optimal egg size and vulnerable developmental stages in insect predators

Original language description

Cannibalism in insect predators is widely reported and commented on. However, the reasons for the high levels of cannibalism observed, the vulnerability of certain developmental stages, and its adaptive significance is poorly understood. Here we show that unlike in parasitoids there could be advantages for a predator in laying many small eggs, rather than fewer large eggs. The temporal incidence of cannibalism within a patch is possibly a consequence of changes in the ratio of predator to prey numbers and/or changes in the vulnerability of the developmental stages of the predator. Cannibalism is advantageous for cannibals because conspecifics are a rich source of food for larval development or egg production, and it reduces intraspecific competition. Adults reduce the cannibalism of their offspring by not ovipositing in patches of prey where conspecific larvae are present.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

<a href="/en/project/ED1.1.00%2F02.0073" target="_blank" >ED1.1.00/02.0073: CzechGlobe - Center for Global Climate Change Impacts Studies</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Journal of Environmental Sciences

ISSN

1805-0174

e-ISSN

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Volume of the periodical

2

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

84-88

UT code for WoS article

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EID of the result in the Scopus database

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