Human population density explains alien species richness in protected areas

By D. Spear, L. Foxcroft, H. Bezuidenhout, M. McGeoch. 2013

196 citations recorded by the source corpus.

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Small urban centres as launching sites for plant invasions in natural areas: insights from South Africa (2017, background): “This was expected given the wellestablished finding that alien species diversity is positively correlated with human population density (van Rensburg et al. 2009; Spear et al. 2013; Aronson et al. 2014a, b).”
Raising the flag on marine alien fouling species (2017, background): “This gap in knowledge hinders the development of welldirected policy and management actions aiming to address invasions (Spear et al. 2013).”
Plant Invasions in Protected Areas (2013, background): “Although the threat of invasions from ornamental plants has virtually been removed, pressure from outside the park remains high where neighbouring populations are found on the parks periphery (Spear et al. 2013).”
Greater Focus Needed on Alien Plant Impacts in Protected Areas (2014, background): “…progressive human encroachment at protected area boundaries (Radeloff et al. 2010; Leroux & Kerr 2013) should be especially worrying since it will augment alien plant propagule supply as well as facilitate visitor access resulting in further invasions (Rose & Hermanutz 2004; Spear et al. 2013).”