Lonsdale M: 2010. F1000.com/6722956
Definitions of network structures are given in the paper and in a companion paper shortly to be published (available now as 'early view') that gives a review of this area and a more in-depth explanation of the terminology . The study of networks in relation to plant diseases is a relatively novel field in comparison with network studies of diseases in humans and animals .
The next step for this work will be to align it with 'real' horticultural trade networks, to identify which theoretical representation fits best with existing networks. Once this is established, the findings in this paper may enable hypotheses to be developed on how structural changes in the plant trade will impact on the spread of epidemics and advise management strategies.
A better understanding of horticultural trade networks may equally improve understanding of 'invasion pathways' and for invasive plants themselves, and not just their diseases, as plant invaders are often brought in by trade in the horticultural industry, and their propagation through the trade possibly has epidemic-like properties.
 Jeger et al. New Phytol 2007, 174:279-97 DOI: 10.1111/j.1469-8137.2007.02028.x