shipping routes

The authors found that more alien species with the potential to establish are likely to be introduced to Durban than to other South African ports. One such a species that is not yet in South Africa that could be introduced to Durban through high risk shipping routes, is the disease vector, the southern house mosquito (Culex quinquefasciatus). (Photo credit: http://www.cabi.org/isc/datasheet/86848, Public Domain/released by CDC (Centers for Disease Control and Prevention) - Original photograph by James Gathany)