Build bird perches to encourage colonisation by plants

How is the evidence assessed?
  • Effectiveness
    10%
  • Certainty
    10%
  • Harms
    0%

Source countries

Key messages

  • One replicated, controlled study in South Africa found that building artificial bird perches increased the number of seeds at two sites, but no shrubs became established at either of these sites.

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 replicated, controlled study in two renosterveld shrubland sites in Western Cape province, South Africa (Heelemann et al. 2012) found that building artificial bird perches increased the number of seeds, but no shrubs became established at any of two sites. Two areas where artificial bird perches were built received more seeds (18–202 seeds/seed trap) than areas without artificial bird perches (0 seeds/seed trap). However, no shrubs became established at any of the sites with bird perches or those without bird perches. At both sites artificial bird perches made of dead branches of Eucalyptus spp. were erected in 10 abandoned agricultural areas, whereas in another 10 areas no perches were erected. Netted seed traps were placed below each perch or in the areas without perches.

    Study and other actions tested
Please cite as:

Martin P.A., Rocha R., Smith R.K. & Sutherland W.J. (2019) Shrubland and Heathland Conservation. Pages 493-538 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2019. Open Book Publishers, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

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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

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What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

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