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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Ecology

ISSN

0021-8901

e-ISSN

—

Svazek periodika

57

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1818-1828

Kód UT WoS článku

000543973300001

EID výsledku v databázi Scopus

2-s2.0-85087149105