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Methods

Material was collected with light traps and passive traps in three different locations in Sweden: Pjältån, Rickleå, and Kaltisjokk.Every survey contained two traps, one passive and one attracting (light) trap. All datasets contain continuous data from a whole season with the exception of dates when traps have failed or been flooded. All specimens were identified to species and sex. 

  • Pjältån
    • Traps: Light/Malaise
    • Year: 2016
  • Rickleå 1972
    • Traps: Light/Suction
    • Year: 1972
  • Rickleå 1973
    • Traps: Light/Suction
    • Year: 1973
  • Kaltisjokk 1
    • Traps: Light/Window
    • Year: 1974
  • Kaltisjokk 2
    • Traps: Light/Window
    • Year: 1974

The analyses were done with odds ratio, meta-analysis and linear regression. 

Photos: Malin Larsson

An example of traps

Traps used at Pjältån in 2016. A light trap (attracting) to the left and a Malaise trap (passive) to the right.


Responsible for this page: Agneta Johansson
Last updated: 04/25/17