Moths in illuminated nights : articificial night effects on moth ecology

K.G. van Geffen

Research output: Thesisinternal PhD, WU


Almost all terrestrial species on earth have evolved to be active in a certain part of the day, and as a result are adapted to certain light conditions. Diurnal species are active under high light intensities (the period known as the photophase, i.e. daytime), nocturnal species are active in low light intensities (the period known as the scotophase, i.e. night), and crepuscular species are in between, active in twilight (i.e. dusk and dawn). During the course of evolution, light intensity has been a very reliable cue for the on- and offset of activity of all these species, but recently, the night is no longer dark per definition. Mankind illuminates the night with artificial light sources, which has led to world-wide large-scale alterations of night-scapes. Levels of light pollution continuously rise, currently with approximately 6% per year on average
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Wageningen University
  • Berendse, Frank, Promotor
  • Veenendaal, Elmar, Co-promotor
  • van Grunsven, Roy, Co-promotor
Award date1 Apr 2015
Place of PublicationWageningen
Print ISBNs9789462572300
Publication statusPublished - 2015


  • lepidoptera
  • artificial light
  • night
  • illumination
  • animal ecology
  • effects
  • geometridae
  • animal behaviour

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