Table 2 Comparison of the potential effects exerted by C. clusii under experimental and field conditions
Experimental conditions | |||
|---|---|---|---|
Negative effect | No effect | Positive effect | |
Field conditions | |||
Negative effect | Chemical interference: H. stoechas, C. clusii (adults) | Other sources of interference (i.e., competition for resources), and phytochemicals accumulation and/or transformation in soils: T. vulgaris, S. lagascae | Other sources of interference (i.e., competition for resources), and phytochemicals accumulation and/or transformation in soils: H. syriacum |
No effect | Neutral interaction outcome (facilitation + chemical interference): H. squamatum, L. suffruticosum | C. clusii-tolerant species: G. struthium, R. officinalis | – |
Positive effect | Limited seed dispersal: C. clusii (seedlings) | – | – |