Attraction of kestrels to vole scent marks visible in ultraviolet light

@article{Viitala1995AttractionOK,
  title={Attraction of kestrels to vole scent marks visible in ultraviolet light},
  author={J. Viitala and Erkki Korplm{\"a}ki and P{\"a}lvl Palokangas and M. Koivula},
  journal={Nature},
  year={1995},
  volume={373},
  pages={425-427}
}
IN northern Europe, broad four-year oscillations in small rodent and raptor populations are synchronous over hundreds of square kilometers 1–6. Crashes in vole populations can induce wide emigration (> 1,000 km) of their predators 7 –9, but almost nothing is known about how predators rapidly detect areas of vole abundance. Here we report on laboratory and field experiments on voles (Microtus agrestis) and kestrels (Falco tinnunculus). Voles mark their runaways with urine and faeces, which are… Expand
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