Action

Reduce intensity of livestock grazing

How is the evidence assessed?
  • Effectiveness
    60%
  • Certainty
    25%
  • Harms
    1%

Source countries

Key messages

  • One study evaluated the effects on peatland vegetation of reducing livestock grazing intensity. This study was in bogs.
  • Vegetation cover (1 study): One replicated, paired, controlled study in bogs in the UK found that total vegetation and shrub cover were greater where grazing intensity was lower. Cottongrass cover was greater where grazing intensity was lower (one species) or unaffected by grazing intensity (one species).
  • Vegetation structure (1 study): The same study found that vegetation biomass was higher where grazing intensity was lower.

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, paired, controlled study in 1971–1982 in three recently burned blanket bogs in Scotland, UK (Grant et al. 1985) found that plots under lower grazing intensities had greater vegetation biomass and cover than more heavily grazed plots. After six years, vascular plant above-ground biomass was greater in lightly/moderately grazed plots (550–557 g/m2) than in heavily grazed plots (346 g/m2). After 11 years, the lightly/moderately grazed plots also had greater total vegetation cover (light: 81%; moderate: 69%; heavy: 48%), shrub cover (light: 13–53%; moderate: 9–38%; heavy: 8–26%) and sheathed cottongrass Eriophorum vaginatum cover (light: 15%; moderate: 11%; heavy: 6%). Cover of common cottongrass Eriophorum angustifolium was similar under all grazing intensities (data not reported). From August 1971, one 0.1 ha plot/bog was grazed under each intensity: light (136–237 sheep grazing days/ha/yr), moderate (296–494) or heavy (484–810). Between 1971 and 1980, dry above-ground biomass was measured in ten quadrats (approximately 25 x 50 cm) per plot. In 1972 and 1982, vegetation cover was measured in 20 point quadrats/plot.

    Study and other actions tested
Please cite as:

Taylor N.G., Grillas P. & Sutherland W.J. (2018) Peatland Conservation. Pages 329-392 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

Peatland Conservation

This Action forms part of the Action Synopsis:

Peatland Conservation
Peatland Conservation

Peatland Conservation - Published 2018

Peatland Conservation

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.

More about What Works in Conservation

Download free PDF or purchase
Our Journal: Conservation Evidence

Our Journal:
Conservation Evidence

A unique, free to publish open-access journal publishing research and case studies that measure the effects of conservation actions.

Read latest volume: Volume 16

Special issues: Amphibian special issue

Go to the Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust