Little is known regarding the diversity, abundances and ecology of bark and ambrosia beetles in South Africa. This study investigated the drivers of bark and ambrosia beetle communities, particularly concerning the invasive polyphagous shot hole borer ( Euwallacea fornicatus (Eichoff, 1868); PSHB), in native forests in two ecoregions in South Africa. Forty-six species of Scolytinae and Platypodinae were recorded, representing...

The polyphagous shot hole borer (PSHB; Euwallacea fornicatus ), is an invasive ambrosia beetle and poses a significant threat to a wide range of tree species globally. Despite its potential impact, research on the beetle's spread and impacts in natural ecosystems remains limited. This study examines the interactions between PSHB and native forest ecosystems in two regions in South Africa. Over 5 years, PSHB invaded all but one...