Summary
This field study of 36 farms demonstrates that longer-term organic management (>0 years) promotes bee community assembly through niche-based rather than stochastic processes, resulting in reduced inter-annual species turnover and greater community stability. The authors show that bee communities reflect species-specific resource preferences for floral and nesting resources, and that extended organic practices stabilise these resource-use patterns. In urbanised landscapes, simplified floral resources drove bee species loss, suggesting landscape context modulates the stabilising effects of organic management on pollinator communities.
UK applicability
These findings are directly relevant to UK organic farming policy and pollinator conservation strategies, given similar temperate agroecosystems and regulatory frameworks promoting organic production. Long-term organic conversion programmes and enhanced floral provision in both farmed and surrounding landscapes appear warranted to stabilise bee communities, though UK-specific landscape complexity and urbanisation patterns would require local validation.
Key measures
Bee community composition and diversity; floral resource availability; niche-based and stochastic species abundance models; additive partition of beta diversity; species turnover across years; jackknife sensitivity analyses
Outcomes reported
The study measured bee community assembly mechanisms, species turnover, and beta diversity across farms with varying lengths of organic management (0–43 years). It assessed how niche-based versus stochastic processes and floral resource turnover influenced bee community structure and stability.
Topic tags
Dig deeper with Pulse AI.
Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.