| relationships among native and introduced populations of the argentine ant (linepithema humile) and the source of introduced populations. | the argentine ant (linepithema humile) is a damaging invasive species that has become established in many mediterranean-type ecosystems worldwide. to identify likely sources of introduced populations we examined the relationships among native linepithema populations from argentina and brazil and introduced populations of l. humile using mitochondrial cytochrome b sequence data and nuclear microsatellite allele frequencies. the mitochondrial phylogeny revealed that the populations in brazil were ... | 2001 | 11555258 |