Cognitive Ecology II
70 • b e e c h e r a n d b u rt level, song learning and adult singing rules appear to be shaped and guided by the bird’s concep ...
5 Consequences of Brain Development for Sexual Signaling in Songbirds W i l l i a m a. S e a r c y & S t e p h e n n o Wi c ...
72 • s e a rc y a n d n ow i c k i period soon after hatching, when a songbird is growing rapidly and is poten- tially under str ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 73 the nXIIts innervate the syrinx, the organ responsible ...
74 • s e a rc y a n d n ow i c k i increases in size in zebra finches between 10 and 50 days (Bottjer et al. 1985; Nordeen and N ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 75 associated with smaller repertoires. In other species, ...
76 • s e a rc y a n d n ow i c k i a wide frequency range (high bandwidth) and a rapid trill rate (M. Westneat et al. 1993). Thi ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 77 mental tests of this hypothesis have now been carried o ...
78 • s e a rc y a n d n ow i c k i 5.4.2. eu rope a n sta r l i ngs Buchanan et al. (2003) stressed young European starlings by ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 79 produce brood sizes that were large (5–6 nestlings), me ...
80 • s e a rc y a n d n ow i c k i were recorded when the subjects were 240–300 days old, and the subjects were then euthanized ...
F i g u r e 5. 3. Songs from (top) a control male zebra finch and (bottom) a male zebra finch stressed early in development. The ...
TA B l e 5 .1. Effects of stress on the song system and adult song Species Swamp sparrow Song sparrow EuropeanStarling Zebra fin ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 83 typically obtain less food per chick and experience low ...
84 • s e a rc y a n d n ow i c k i period of accelerated, compensatory growth (Metcalfe and Monaghan 2001). In mammals, long-ter ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 85 red blood cells (Buchanan et al. 2003). Individuals in ...
86 • s e a rc y a n d n ow i c k i jay, Aphelocoma californica (see Pravosudov, chapter 6 in this volume). Pravo- sudov et al. ( ...
Consequences of Brain Development for Sexual Signaling in Songbirds • 87 mental effects on the neural structures that control th ...
6 Development of Spatial Memory and the Hippocampus under Nutritional Stress: Adaptive Priorities or Developmental Constraints i ...
Spatial Memory and the Hippocampus under Nutritional Stress • 89 ment and on the way available nutrition is partitioned by the g ...
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