Invasiveness and comparative life-history traits of exotic and indigenous Senecio species in Australia.
Ian J Radford, Roger D Cousens
Oecologia | Published : 2000
A comparative ecological study of closely related invasive and non-invasive species, Senecio madagascariensis and S. lautus (Asteraceae), investigated what traits might confer invasive ability in very similar species. Life-history attributes of the weed S. madagascariensis were compared to five habitat-specific subspecies of S. lautus: S. l. alpinus, S. l. dissectifolius, S. l. lanceolatus and two forms of S. l. maritimus. Field populations of each taxon were monitored to compare their population ecology. Relative rates of phenological development were compared at a single location. Seed germination was studied in a laboratory experiment. Transplant experiments were conducted in a range of S..View full abstract