Consequences of Domestication On the Song Structures in the Canary

Regulatory mechanisms of testosterone-stimulated song in the sensorimotor nucleus HVC of female songbirds

“…Strongly increased neurotransmission may be an essential testosterone effect to induce the temporal features of full song in female canaries, but dispensable for testosterone-stimulated song in female European robins. This observation justifies the assumption that testosterone-responsive mechanisms, which regulate song behavior in a bird species that was selectively bred for the elongation of tours [ 103 ], may not be involved in the stimulation of particular testosterone-responsive spontaneous song behaviors of wild bird species.…”

Regulatory mechanisms of testosterone-stimulated song in the sensorimotor nucleus HVC of female songbirds

“…Strongly increased neurotransmission may be an essential testosterone effect to induce the temporal features of full song in female canaries, but dispensable for testosterone-stimulated song in female European robins. This observation justifies the assumption that testosterone-responsive mechanisms, which regulate song behavior in a bird species that was selectively bred for the elongation of tours [ 103 ], may not be involved in the stimulation of particular testosterone-responsive spontaneous song behaviors of wild bird species.…”

Motor constraints on vocal development in a songbird

“…Furthermore, the percentage of birds in the experimental group that produced fair or good copies of notes (6 of 7 birds) was comparable to, if not somewhat higher than, that found in the control group (7 of 12 birds), and also to a group of swamp sparrows from a previous study that were exposed to normal conspecific song models (12 of (Fig. 1b, d, f (Marler 1984;Güttinger 1985). Multi-syllable segments of broken trills (Fig.…”

Long-range Order in Canary Song

“… Fig. 2b shows that there is no general correlation between syllable duration and phrase duration (r = .013, p = .90); canaries persist on a single syllable for a duration that is roughly one second, whether the syllable is short or long [24]. To produce a phrase of the characteristic duration, the shortest syllables are repeated 20–30 times, while the longest syllables are repeated only 3–4 times.…”

Regulatory mechanisms of testosterone-stimulated song in the sensorimotor nucleus HVC of female songbirds

“…Strongly increased neurotransmission may be an essential testosterone effect to induce the temporal features of full song in female canaries, but dispensable for testosterone-stimulated song in female European robins. This observation justifies the assumption that testosterone-responsive mechanisms, which regulate song behavior in a bird species that was selectively bred for the elongation of tours [ 103 ], may not be involved in the stimulation of particular testosterone-responsive spontaneous song behaviors of wild bird species.…”

Motor constraints on vocal development in a songbird

“…Furthermore, the percentage of birds in the experimental group that produced fair or good copies of notes (6 of 7 birds) was comparable to, if not somewhat higher than, that found in the control group (7 of 12 birds), and also to a group of swamp sparrows from a previous study that were exposed to normal conspecific song models (12 of (Fig. 1b, d, f (Marler 1984;Güttinger 1985). Multi-syllable segments of broken trills (Fig.…”

Long-range Order in Canary Song

“… Fig. 2b shows that there is no general correlation between syllable duration and phrase duration (r = .013, p = .90); canaries persist on a single syllable for a duration that is roughly one second, whether the syllable is short or long [24]. To produce a phrase of the characteristic duration, the shortest syllables are repeated 20–30 times, while the longest syllables are repeated only 3–4 times.…”

Regulatory mechanisms of testosterone-stimulated song in the sensorimotor nucleus HVC of female songbirds

“…Strongly increased neurotransmission may be an essential testosterone effect to induce the temporal features of full song in female canaries, but dispensable for testosterone-stimulated song in female European robins. This observation justifies the assumption that testosterone-responsive mechanisms, which regulate song behavior in a bird species that was selectively bred for the elongation of tours [ 103 ], may not be involved in the stimulation of particular testosterone-responsive spontaneous song behaviors of wild bird species.…”

Motor constraints on vocal development in a songbird

“…Furthermore, the percentage of birds in the experimental group that produced fair or good copies of notes (6 of 7 birds) was comparable to, if not somewhat higher than, that found in the control group (7 of 12 birds), and also to a group of swamp sparrows from a previous study that were exposed to normal conspecific song models (12 of (Fig. 1b, d, f (Marler 1984;Güttinger 1985). Multi-syllable segments of broken trills (Fig.…”

Long-range Order in Canary Song

“… Fig. 2b shows that there is no general correlation between syllable duration and phrase duration (r = .013, p = .90); canaries persist on a single syllable for a duration that is roughly one second, whether the syllable is short or long [24]. To produce a phrase of the characteristic duration, the shortest syllables are repeated 20–30 times, while the longest syllables are repeated only 3–4 times.…”