Consistent response of weeds according to Grime's CSR strategies along disturbance and resource gradients in Bordeaux vineyards

Vineyards are an appropriate model for testing the filtering effect of management practices on weed communities, as a wide range (tillage, herbicides and mowing) is implemented. The aim this study to highlight which trait values selected by each practice in different environmental conditions, with special references Grime's CSR strategies. A combination multivariate analysis (RLQ) fourth-corner was used analyse 400 floristic samples belonging 100 vineyards wine-growing region Bordeaux (France). main structure vineyard communities shaped opposition between mowing, favouring hemicryptophytes competitive strategy, soil tillage, therophytes nutrient-demanding species ruderal strategy. Secondly, differed according trophic status soil. acidic, sandy soils low organic matter were characterised small-seeded annuals stress-tolerant strategy whereas clayey, calcareous rich matter, harboured larger perennial nitrophilous large seeds Our first show that responded consistently two independent gradients specific traits associated disturbance (life cycle SLA) resources (plant height seed mass) gradients. Based knowledge characteristics, it becomes possible predict type weeds will develop applied rows inter-rows.