Effects of light and prey availability on nocturnal, lunar and seasonal activity of tropical nightjars

  title={Effects of light and prey availability on nocturnal, lunar and seasonal activity of tropical nightjars},
  author={Walter Jetz and Jan Steffen and Karl Eduard Linsenmair},
Nightjars and their allies represent the only major group of visually hunting aerial insectivores with a crepuscular andlor nocturnal lifestyle. Our purpose was to examine how both light regime and prey abundance in the tropics, where periods of twilight are extremely short, but nightjar diversity is high, affect activity across different temporal scales. We studied two nightjar species in West African bush savannah, standard-winged nightjars Macrodipteryx longipennis Shaw and long-tailed… 

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