Cut trees and remove tree seedlings

How is the evidence assessed?
  • Effectiveness
    62%
  • Certainty
    20%
  • Harms
    0%

Source countries

Key messages

  • A controlled, before-and-after study in South Africa found that cutting orange wattle trees and removing seedlings of the same species increased plant diversity and shrub cover.

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A controlled, before-and-after study in 2013-2014 in a fynbos site in Cape Town, South Africa (Krupek et al. 2016) found that cutting of invasive orange wattle Acacia saligna trees, followed by removal of the species’ seedlings increased plant diversity and shrub cover. Plant species diversity was higher in areas where orange wattle trees were cut and had seedlings removed than areas where no cutting or seedling removal had been carried out (data as model results). Cutting and removal of seedlings also led to higher shrub cover (10% cover) compared to areas that had not been cut or had seedlings removed (5% cover). In April 2013 orange wattle saplings were cut using loppers and seedlings removed by hand in ten 25 m2 plots, while another 10 plots were left uncut. The cover of plant species was assessed using 1 m2 quadrats placed inside each plot.

    Study and other actions tested
Please cite as:

Martin P.A., Rocha R., Smith R.K. & Sutherland W.J. (2018) Shrubland and Heathland Conservation. Pages 447-494 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2018. Open Book Publishers, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Shrubland and Heathland Conservation

This Action forms part of the Action Synopsis:

Shrubland and Heathland Conservation
Shrubland and Heathland Conservation

Shrubland and Heathland Conservation - Published 2017

Shrubland and Heathland synopsis

What Works in Conservation

What Works in Conservation

What Works in Conservation assesses the research looking at whether interventions are beneficial or not. It is based on summarised evidence in synopses, on topics such as amphibians, bats, biodiversity in European farmland, and control of freshwater invasive species. More are available and in progress.

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