Estimating Prey Consumption in Natural Populations of Harmonia axyridis (Coleoptera: Coccinellidae) Using Production of Feces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F17%3A00004140" target="_blank" >RIV/00027006:_____/17:00004140 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1093/jee/tox294" target="_blank" >http://dx.doi.org/10.1093/jee/tox294</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/jee/tox294" target="_blank" >10.1093/jee/tox294</a>

Result language

angličtina

Original language name

Estimating Prey Consumption in Natural Populations of Harmonia axyridis (Coleoptera: Coccinellidae) Using Production of Feces

Original language description

Production of feces (PF) is a useful proxy indicating quantity of ingested food. Although influenced by many uncontrolled factors PF provides insight into food consumption under natural conditions. In Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) variation in PF was investigated in populations of various hostplants at localities of central Bohemia (50N, 14E), throughout the season of 2016. The adults collected from these hostplants were starved for 48 h at standard conditions, and dry mass of feces produced during this period was measured. Despite enormous differences in PF among individuals, significant variation over the season occurred in average PF of both males and females. PF increased with abundance of aphids and was significantly greater in females than males. Gravidity, as manifested through oviposition within 48 h after capture, was associated with increased PF, while hostplant and color morph did not affect variation in PF among individuals. From PF as measured in this study, it can be estimated that at sites hosting abundant aphid populations H. axyridis (as an adult male or female) may consume 19 (male) to 45 (female) aphids per day (assumed body length 1mm). In the absence of aphids, adults may consume one to nine individuals of alternative prey per day (body length 1-2 mm).

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10616 - Entomology

Project

<a href="/en/project/GA17-06763S" target="_blank" >GA17-06763S: Factors limiting geographic distribution of native and invasive coccinellid species</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Economic Entomology

ISSN

0022-0493

e-ISSN

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Volume of the periodical

110

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

2406-2412

UT code for WoS article

000417754400017

EID of the result in the Scopus database

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