ornithologylahtibirds.qwriting.qc.cuny.edu/files/2016/02/lecture7-vocalcommunication.pdf ·...
TRANSCRIPT
Ornithology Queens College BIOL 386/723 ~ 3 credits
Spring 2016 ~ Thursdays 9 – 3:30
Dr. David C. Lahti [email protected]
Lecture 7: Vocal Communication
SONG
Female choice: locality
Male competition and territoriality
Pitch
Pitch
Rapid Modulation
Rapid Modulation
Rapid Modulation Do birds have vocal registers?
Polyphony
Individual recognition
Duets
Repertoires
Dawn chorus
Blackbird > Robin > Wren > Tawny Owl > Chaffinch > Pheasant > Warblers > Song Thrush > Greenfinch > Dunnock > Goldfinch
Song learning
Neurobiology of song learning
Song learning
“Nurture” Imitation
? “Nature”
“Nurture”
Young males might:
1. learn less well or not at all
2. learn exactly what they hear
3. improve upon what they hear
What happens if we train males on slow
(unattractive) songs?
0.5 s
Slow trill rate training song
kHz
Model:
Copy:
Natural:
Inheritance & learning in
bird song development
Song =
Imitation =
Biases = Nature/Innate
Nurture/Learned
Behavior
1 RR ZRZR 0%B
2 BR-RZRZR 25%B
3 RB-RZBZR 25%B
4 BR ZBZR 50%B
4 RB ZRZB 50%B
5 BR-B ZRZB 75%B
6 RB-B ZBZB 75%B
7 BB ZBZB 100%B
Song traditions
Geographic Variation & Dialects
Cultural evolution
Macroevolution of bird song