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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20240329T075041Z
UID:https://www.bi.mpg.de/events/14989/2855
DTSTART:20190328T120000Z
DTEND:20190328T130000Z
CLASS:PUBLIC
CREATED:20180807T110750Z
DESCRIPTION:Constraining environments constitute a strong selective pressur
e potentially driving strategies to optimize the reliability of communicat
ion processes. In this perspective\, the “Signal Structure Hypothesis”
predicts that the structure of animal signals will differ depending on fe
atures of the habitat. For example and for vocal communications\, the so-c
alled “Acoustic Adaptation Hypothesis” predicts that bird songs optimi
zed for long-range propagation in a forest should be slowly modulated in f
requency and as low in frequency as the sender can produce. Since the susc
eptibility to propagation-induced modifications of emitted signals depends
on their acoustic characteristics\, the emitter also could enhance or on
the contrary reduce its active space of communication by coding the inform
ation in more or less propagation-resistant parameters. I will show that t
his adjustment of the coding strategies according to the habitat can be ex
perimentally demonstrated for the vocalizations of songbirds living in dif
ferent habitats. Due to the variable spacing of territorial individuals\,
some information may be coded to degrade over short distance and some migh
t be coded such that it transmits over long distance without much degradat
ion. Thus\, species-specific identity is encoded in propagation resistant
acoustic features allowing individual to reach a wide audience and constit
utes public information. Conversely\, group identity\, individual identity
and motivation state are encoded by song features susceptible to propagat
ion\, a private information reserved for close neighbors or for the partne
r.\nVortragende(r): Prof. Dr. Thierry Aubin
LAST-MODIFIED:20190206T093511Z
LOCATION:Seewiesen\, Raum: Seminar Room House 4\, Tea & Coffee 12:30h
ORGANIZER:Prof. Dr. Manfred Gahr
SUMMARY:Talk Thierry Aubin\, Seewiesen: Thierry Aubin\, Université Pari
s-Sud: Coding strategies in vocal communications of song birds
URL:https://www.bi.mpg.de/events/14989/2855
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