Concept information
ΠΡΟΤΙΜΩΜΕΝΟΣ ΟΡΟΣ
2246Visual animal communication systems
ΠΛΑΤΥΤΕΡΟΙ ΟΡΟΙ
ΕΙΔΙΚΟΤΕΡΟΙ ΟΡΟΙ
ΔΙΕΥΚΡΙΝΙΣΤΙΚΗ ΣΗΜΕΙΩΣΗ
- 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.
ΠΗΓΗ
- Gilliam 2011
- Smith 1972
ΣΥΝΤΕΛΕΣΤΗΣ
- Katsiadakis Helen (AA)
ΔΗΜΙΟΥΡΓΟΣ
- Karasimos Athanasios (AA)
ΝΟΤΑΤΙΟΝ
- 2246
ΣΕ ΑΛΛΕΣ ΓΛΩΣΣΕΣ
-
Ελληνικά
URI
https://humanitiesthesaurus.academyofathens.gr/dyas-resource/Concept/2246
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