Davina Saccaggi

Phd Candidate

Email: DavinaS@daff.gov.za

Primary promoter: Prof. John S. Terblanche. Co-promoters: Prof. John Wilson.


Project title: Mechanisms and determinants of invasion success in terrestrial arthropods

Project description:

I am investigating the influence of three primary drivers on invasion success of terrestrial arthropods: introduction pathway; characteristics of the introduced taxa; and environmental invasibility. My study system is the pests and pathogens transported and introduced via international agricultural plant trade, with a specific focus on Acari (mites). I will examine the drivers and their components independently and in conjunction to investigate questions relating to transport, establishment and distribution of invasive agricultural pests. Questions include: how effective is border bio-security; what influences transport of species; how do introductions, species and environment interact during establishment; and can these factors predict global pest distributions?


University of Stellenbosch, Department of Conservation Ecology & Entomology (ConsEnt); Centre for Invasion Biology (CIB); Department of Agriculture, Forestry and Fisheries (DAFF)