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Author (up) Liporoni, R.; Cordeiro, G.D.; Prado, P.I.; Schlindwein, C.; Warrant, E.J.; Alves-Dos-Santos, I. url  doi
  Title Light intensity regulates flower visitation in Neotropical nocturnal bees Type Journal Article
  Year 2020 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 10 Issue 1 Pages 15333  
  Keywords Animals; Natural light  
  Abstract The foraging activity of diurnal bees often relies on flower availability, light intensity and temperature. We do not know how nocturnal bees, which fly at night and twilight, cope with these factors, especially as light levels vary considerably from night to day and from night to night due to moon phase and cloud cover. Given that bee apposition compound eyes function at their limits in dim light, we expect a strong dependence of foraging activity on light intensity in nocturnal bees. Besides being limited by minimum light levels to forage, nocturnal bees should also avoid foraging at brighter intensities, which bring increased competition with other bees. We investigated how five factors (light intensity, flower availability, temperature, humidity, and wind) affect flower visitation by Neotropical nocturnal bees in cambuci (Campomanesia phaea, Myrtaceae). We counted visits per minute over 30 nights in 33 cambuci trees. Light intensity was the main variable explaining flower visitation of nocturnal bees, which peaked at intermediate light levels occurring 25 min before sunrise. The minimum light intensity threshold to visit flowers was 0.00024 cd/m(2). Our results highlight the dependence of these nocturnal insects on adequate light levels to explore resources.  
  Address Departamento de Ecologia, Instituto de Biociencias, Universidade de Sao Paulo, Rua do Matao, travessa 14, Sao Paulo, SP, 05508-900, Brazil  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:32948798 Approved no  
  Call Number GFZ @ kyba @ Serial 3139  
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