Agri-environment schemes enhance pollinator richness and abundance but bumblebee reproduction depends on field size

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F20%3A00525346" target="_blank" >RIV/60077344:_____/20:00525346 - isvavai.cz</a>

Result on the web

<a href="https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.13682" target="_blank" >https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.13682</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2664.13682" target="_blank" >10.1111/1365-2664.13682</a>

Result language

angličtina

Original language name

Agri-environment schemes enhance pollinator richness and abundance but bumblebee reproduction depends on field size

Original language description

Pollinators are facing worldwide decline and many countries have introduced environment schemes (AES) to counteract this ongoing trend. But the importance of AES in ecosystem function and biodiversity is still little understood and might be context-dependent. In our study, we compared the effectiveness of organic farming and flower strips, the two most popularnAES schemes in Germany, on pollinator diversity and flower resources. We selected nine landscapes along a gradient of increasing field size, each with a triplet of winter wheat fields: organic, conventional with flower strip, and conventional without flower strip as control and surveyed insect-pollinated plants and pollinators. Additionally, we placed bumblebeencolonies in the field edges to monitor their growth (colony weight gain) and reproduction (queen production). Flower strips supported the highest abundance and richness of pollinators but bumblebee colony growth and plant richness benefited equally from organic and flower strip schemes. At the landscape scale, smaller fields had a positive effect on plant richness and bumblebee reproduction in flower strips, but bumblebee colonies in organic agriculture benefited most from large fields with higher flower resources than the narrow flower strips. Our results showed that both local and landscape management shaped pollinator communities and their reproduction. Overall, organic farming and flower strips appeared to be effective toolsnto mitigate flower shortage in conventional cereal fields, with organic farming supporting the highest flowering plant cover per field. Flower strips enhanced local pollinator richness most but increased bumblebee reproduction only when the surrounding landscapes had small fields with long field borders. We conclude that European Union policies need to také into account that the effectiveness of agri-environment schemes depends on the structure of the surrounding landscape.

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

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Journal of Applied Ecology

ISSN

0021-8901

e-ISSN

—

Volume of the periodical

57

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

1818-1828

UT code for WoS article

000543973300001

EID of the result in the Scopus database

2-s2.0-85087149105