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PREFERRED TERM
2246Visual animal communication systems  
SCOPE NOTE
  • Visual signals are very effective for animals that are active during the day. Some visual signals are permanent advertisements; for example, the bright red epaulets of male red-winged blackbirds, Agelaius phoeniceus, which are always displayed, are important for territory defense. When researchers experimentally blackened epaulets, males were subject to much higher rates of intrusion by other males. Alternatively, some visual signals are actively produced by an individual only under appropriate conditions. Male green anoles, Anolis carolinensis, bob their head and extend a brightly colored throat fan (dewlap) when signaling territory ownership.
SOURCE
  • Gilliam 2011
  • Smith 1972
CONTRIBUTOR
  • Katsiadakis Helen (AA)
CREATOR
  • Karasimos Athanasios (AA)
URI
https://humanitiesthesaurus.academyofathens.gr/dyas-resource/Concept/2246
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