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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10616 - Entomology

Projekt

<a href="/cs/project/GA17-06763S" target="_blank" >GA17-06763S: Faktory limitující geografické rozšíření domácích a invazních druhů u slunéčkovitých</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Economic Entomology

ISSN

0022-0493

e-ISSN

—

Svazek periodika

110

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

2406-2412

Kód UT WoS článku

000417754400017

EID výsledku v databázi Scopus

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