Plant spiny shrubs to act as barriers to people
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Planting spiny shrubs in sensitive shrubland areas may help to reduce access by people therefore reducing negative impacts such as trampling. However, planting of some spiny plants, such as cacti can result in spread of invasive species (Essl & Kobler 2009; Novoa et al. 2015). As such any use of this intervention should first assess the potential risks associated with introducing spiny plants, particularly if they are not-native to the region of interest.
Essl, F. & Kobler, J. (2009) Spiny invaders – Patterns and determinants of cacti invasion in Europe. Flora - Morphology, Distribution, Functional Ecology of Plants, 204, 485-494.
Novoa, A., Kaplan, H., Kumschick, S., Wilson, J.R.U. & Richardson, D.M. (2015) Soft Touch or Heavy Hand? Legislative Approaches for Preventing Invasions: Insights from Cacti in South Africa. Invasive Plant Science and Management, 8, 307-316.