Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Preprints |
| DOI | 10.2139/ssrn.5334581 |
| Titel (primär) | Towards using the beehave honey bee model across climates: A heuristic approach to let egg-laying rates emerge from weather conditions, pollen storage and brood pheromones |
| Autor | Lammers, D.; Grimm, V.; Requier, F.; Focks, A.; Groeneveld, J. |
| Quelle | SSRN |
| Erscheinungsjahr | 2025 |
| Department | OESA |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Abstract | Multiple stressors threaten honey bees and increase the risk of colony mortality. Empirical studies to determine the relative importance of stressors and critical stress levels are not feasible because most stressors and colony characteristics cannot be controlled. Modelling of honey bee colonies can help to fill this gap. The BEEHAVE model is well acknowledged to analyse the impacts of local land use including pesticide use, weather, mite infestation and beekeeping practices on the risk of colony mortality. However, it is based on an imposed egg-laying rate which is only representative of average central European conditions and at the same time the main driving factor for the colony dynamics. We developed a modified version, BEEHAVE-PPE (Pollen Pheromone Egg laying), where the egg-laying rate depends on pollen storage and intake. We assumed that daily pollen foraging, and thus pollen uptake, depends not only on the weather but also on brood size, brood pheromones, and temperature. The six parameters of our new module BEEHAVE-PPE were calibrated using demographic and weather data from a bee colony monitoring area in France, leading to realistic colony dynamics for average weather conditions, but not for scenarios with prolonged periods of bad weather preventing foraging. While our model is based on yet unverified heuristic assumptions concerning brood pheromone production and dynamics, the results indicate that it is possible to let the egg-laying rate in honey bee colonies emerge from the local weather and the feedbacks from the brood. Our new version, BEEHAVE-PPE, is thus not meant to be used as is but to prompt new empirical and theoretical research. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31100 |
| Lammers, D., Grimm, V., Requier, F., Focks, A., Groeneveld, J. (2025): Towards using the beehave honey bee model across climates: A heuristic approach to let egg-laying rates emerge from weather conditions, pollen storage and brood pheromones SSRN 10.2139/ssrn.5334581 |
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