should not pose a threat. However, it is important to note that compliance with and
enforcement of the regulations could be problematic [e.g. for aquarium plants
(Martin and Coetzee 2011) and ornamental plants (Cronin et al. 2017)].
Fig. 12.13 Trends in imports to mainland African countries (excluding South Africa). (a) The
value of merchandise imports to mainland African countries, and (b) the percentage change in the
volume of goods imported into this region, with predictions for the upcoming years (in grey). Data
were obtained from the World Trade Organisation (2017) and International Monetary Fund (2016)
(redrawn from Faulkner and Wilson 2018)
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