However, ptesencc of nonindigenous species suggests that roadways facilitate the transport of source propagules to otherwise remote sites.

Moran (Kim Cattrall, 'Sex and the City') may hold the key to saving the human race. This suggests that xeric scrub may be somewhat resistant to invasion where native soils are present, even if disturbed. Most of humanity has become infected and an alien takeover of Earth seems imminent. In general, sand roadsides and clearcuts had higher characteristic but lower uncharactistic and non indigenous plant cover and number of species than modified roadside substrates. Soil pH and levels of several nutrients differed significantly ip limerock roadsides relative to the other substrates. CDs Vinyl ,British,by,Rock,70,Sym,Invasion, Classic Rock,Vol British Invasion Vol by Virginia Beach Mall Rock Sym 70 Classic Rock CDs. Clay and limerockroadsides had more clay and less sand than sand roadsides or clearcuts. Small rocks fall from the sky which, when touched, trigger a latent virus that has always existed in humans and begins mutating them into an alien species. We compared plant communities and soil charact&tics along clay, limerock, and unmodified sand roadsides, and in adjacent clearcuts in xeric Florida sand pine scrub to test our hypothesis that modified soils used in constructing roadways provide a roadside corridor for invasion by nonindigenous species and species that are uncharacteristic of xeric scrub. Invasion of ecosystems by nonindigenous species threatens native biodiversity by altering species compositi& and site chsracteristics, and by potentially impacting endangered species.

Invasion 1997