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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/60460709:41330/20:85201

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40500 - Other agricultural sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

ACTA ZOOLOGICA ACADEMIAE SCIENTIARUM HUNGARICAE

ISSN

1217-8837

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

2020

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

12

Strana od-do

37-48

Kód UT WoS článku

000605457300004

EID výsledku v databázi Scopus

2-s2.0-85099938719