The influence of grazing intensity and landscape composition on the diversity and abundance of flower‐visiting insects

摘要: Summary 1. The loss of semi-natural grasslands in agro-ecosystems has increased the importance adequate management remaining grasslands. Recommendations for intensive grazing have been debated because effects different practices may differ between taxa and species. fragmentation suggests that influence should be studied a landscape context. 2. We four groups flower visitors, many which are pollinators, bees (Apoidea), but terflies (Lepidoptera), hoverflies (Syrphidae) beetles (Cole?ptera), managed at three intensity levels eight areas central Sweden. Local characteristics were recorded diversity was quantified. Vegetation height correlated with intensity: shortest vegetation abandoned grassland tallest. 3. insect responded differently to intensity. Species richness abundance differed regimes not butterflies. 4. local habitat composition on species richness, groups. Bee both factors. Butterflies mainly affected by linear elements landscape. More tall landscapes high forest cover. Beetles only environment characteristics. 5. Synthesis applications. demonstrate studying simultaneously when evaluating qualities diversity. results suggest planning conservation biodiversity scales better than implementing guidelines individual Grazing vary within or preserve pollinator Conservation encourage visitors cannot generalized include all simultaneously.