Do Properties and Species of Weed Seeds Affect their Consumption by Carabid Beetles?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F20%3A10137331" target="_blank" >RIV/00027006:_____/20:10137331 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41330/20:85201

Result on the web

<a href="http://actazool.nhmus.hu/66/Suppl/ActaZH_2020_Vol_66_Suppl_37.pdf" target="_blank" >http://actazool.nhmus.hu/66/Suppl/ActaZH_2020_Vol_66_Suppl_37.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17109/AZH.66.Suppl.37.2020" target="_blank" >10.17109/AZH.66.Suppl.37.2020</a>

Result language

angličtina

Original language name

Do Properties and Species of Weed Seeds Affect their Consumption by Carabid Beetles?

Original language description

Seed predators are an integral part of agroecosystems, where they can reduce the populations of weeds. The preference of predators for seeds and the observed predation rate may be affected by the properties of seeds (e.g. taxonomy, chemical composition, physical defence). In this work, we focused on seed consumption of Taraxacum officinale Web. and Stellaria media (L.) Vill., from France and the Czech Republic, by three species of ground beetle that are seed predators (Coleoptera: Carabidae): Poecilus cupreus (L.), Pterostichus melanarius (Illiger) and Anchomenus dorsalis (Pontoppidan). The seed species were offered in arenas, simultaneously, under three different experimental manipulations of moisture and seed coat conditions: dry and intact, water-imbibed and intact, and water-imbibed with a damaged seed coat. Seed consumption was checked after 0.5, 1, 2, 24, and 48 hrs of exposure. Anchomenus dorsalis largely refused to feed on seeds. Taraxacum officinale seeds with damaged coats were most preferred by the remaining two species of carabids. The consumption by P. cupreus of T. officinale seeds with damaged coats increased from 0.18% after 0.5 hrs to 83.83% after 48 hrs, and by P. melanarius from 13.76% after 0.5 hrs to 76.77% after 48 hrs. Seeds of S. media were consumed less. There was a significant difference in consumption rates due to the country of origin of the seeds, but there were no differences between the carabid sexes. That carabids preferred water-imbibed and damaged seeds may suggest an involvement of olfactory clues in the seed selection process, and/or shorter seed-handling times.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

40500 - Other agricultural sciences

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

ACTA ZOOLOGICA ACADEMIAE SCIENTIARUM HUNGARICAE

ISSN

1217-8837

e-ISSN

—

Volume of the periodical

66

Issue of the periodical within the volume

2020

Country of publishing house

HU - HUNGARY

Number of pages

12

Pages from-to

37-48

UT code for WoS article

000605457300004

EID of the result in the Scopus database

2-s2.0-85099938719