Ground-nesting wild bees/flower/the influence of ploughing
Ground-nesting wild bees in flower strips and
the influence of ploughing on ground-nesting bee nests
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Team: PhD student Christopher Hellerich Dr. Felix Fornoff Prof. Dr. Alexandra Klein Dr. Anne-Chirstine Mupepele | Duration: October 2022 - December 2025 Funding:
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| Perennial flower strips are becoming increasingly popular as a effective measure for promoting biodiversity in the agricultural landscape. Wild bees in particular benefit from perennial flowerstrips: In addition to a broad food supply, these areas provide necessary nesting opportunities for native wild bee species, the majority of which nest in the soil. With regard to the soil-nesting wild bees as important pollinators for wild and cultivated plants, the question arises what effects the tilling of flower strips, e.g. by ploughing, has on the soil-nesting bees and their nests. Currently, there is little knowledge about this; in particular, it is unclear how many of the wild bees that forage in the flowering strips also nest there. |  | |
In this project, financed by the Ministry of the Environment, Climate Protection and Energy Sector Baden-Württemberg, annual and perennial flower strips in the agricultural landscape of Baden-Württemberg are compared with respect to their foraging as well as soil-nesting wild bee communities. In particular, we investigate the effects of ploughing as a tillage measure in flower strips on the nests of ground-nesting wild bees. For this purpose, methods for localizing nests in flower strips will be evaluated and (further) developed, and nest locations as well as the wild bees nesting in them will be systematically recorded. With the ecological and methodological knowledge gained, the project helps to better evaluate measures from current agri-environmental programs such as the Baden-Württemberg Support Program for Agri-environment, Climate Protection and Animal Welfare (FAKT) or the "Eco-schemes" introduced with the reform of the Common Agricultural Policy (CAP) of the EU. | ||
| Public relations: | |
| Talk by Christopher Hellerich on 05.02.2025 at the EcoLunch-Kolloquium at the University of Marburg "How soil management in perennial flower strips affects overwintering arthropods" |  |
| Participation of Christopher Hellerich in the agricultural strategy dialogue (2022-2024) of the state government, which ended on 07.10.2024 with the joint agreement for the future of agriculture and biodiversity in Baden-Württemberg. |  |
| Talk by Christopher Hellerich on 05.09.2024 at the annual conference of the Society for Ecology (GfÖ) in Freising |  |
Online talk by Christopher Hellerich on 13.03.2024 | |
at the BeesUp Symposium "Ground-nesting Wild Bees" at the Julius Kühn Institute in Braunschweig "Assessing nest locations and densities of ground-nesting wild bees in flower strips and other habitats" |  |
BZ - Badische Zeitung - 20.06.2023 |
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on 27.10. & 15.11.2023 at a farmer information event of the Saalemühle Alsleben GmbH „Kriterien bei der Planung und Anlage von Blühflächen zum Biodiversitätsschutz“ |  |
Impressions from the test sites in 2023 and 2024 | |||||||||||||||||||||||
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Haben Sie fragen zum Projekt, dann kontaktieren Sie Christopher Hellerich gerne telefonisch: 0761 203 3644 oder perE-Mail | |