<P> An introduced species (alien species, exotic species, non-indigenous species, or non-native species) is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental . Non-native species can have various effects on the local ecosystem . Introduced species that become established and spread beyond the place of introduction are called invasive species . The impact of introduced species is highly variable . Some have a negative effect on a local ecosystem, while other introduced species may have no negative effect or only minor impact . Some species have been introduced intentionally to combat pests . They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example . In some instances the potential for being beneficial or detrimental in the long run remains unknown . </P> <P> The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others . </P>

What kind of interaction will most likely occur between the two species