Reduce the size of surface features when prospecting for or extracting underground products

How is the evidence assessed?
  • Effectiveness
    not assessed
  • Certainty
    not assessed
  • Harms
    not assessed

Study locations

Key messages

  • One study evaluated the effects on butterflies and moths of reducing the size of surface features when prospecting for or extracting underground products. This study was in Canada.

COMMUNITY RESPONSE (1 STUDY)

  • Richness/diversity (1 study): One replicated, site comparison study in Canada found that narrow corridors used for prospecting for oil had a lower species richness of butterflies than wide corridors, but were similar to undisturbed forest.

POPULATION RESPONSE (1 STUDY)

  • Abundance (1 study): One replicated, site comparison study in Canada found that narrow corridors used for prospecting for oil had a lower abundance of butterflies than wide corridors, but were similar to undisturbed forest.

BEHAVIOUR (0 STUDIES)

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, site comparison study in 2015 in a boreal forest in Alberta, Canada (Riva et al. 2018) found that narrow corridors used for prospecting for oil had a lower abundance and species richness of butterflies than wide corridors, but were more similar to undisturbed forest. In narrow, 3-m-wide corridors, the abundance (31 individuals/site) and species richness (8 species/site) of butterflies was lower than in 9-m-wide corridors (abundance: 95 individuals/site; richness: 15 species/site). However, narrow corridors were similar to undisturbed forest (abundance: 21 individuals/site; richness: 7 species/site). From 2000–2005, corridors (3  or 9 m wide) were cleared of trees to prospect for oil in a 25-km2 area of previously undisturbed forest. From June–August 2015, butterflies were surveyed 11 times on five 200-m transects in corridors of each width, and in undisturbed forest patches which had received no wildfire or anthropogenic disturbance within 50 m for >80 years.

    Study and other actions tested
Please cite as:

Bladon A.J., Smith R.K. & Sutherland W.J. (2022) Butterfly and Moth Conservation: Global Evidence for the Effects of Interventions for butterflies and moths. Conservation Evidence Series Synopsis. University of Cambridge, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

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Butterfly and Moth Conservation

This Action forms part of the Action Synopsis:

Butterfly and Moth Conservation
Butterfly and Moth Conservation

Butterfly and Moth Conservation - Published 2022

Butterfly and Moth Synopsis

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