The Comparative Nutrition of Two Passerine Species: the Canary (Serinus canarius) and the Zebra Finch (Poephila guttata)
نویسندگان
چکیده
منابع مشابه
Colony differences in auditory thresholds in the canary (Serinus canarius).
Adult canaries (Serinus canarius) from a closebred colony of the Belgian "Waterslager" strain were trained with operant techniques to respond to pure tones. A psychophysical tracking procedure was used to measure absolute auditory thresholds in quiet and in noise. Absolute thresholds in the middle- to high-frequency region of the audiogram were between 30 and 40 dB higher (4-5 standard deviatio...
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چکیده ندارد.
15 صفحه اولTemporal integration in zebra finches (Poephila guttata).
Three zebra finches were trained with operant techniques to respond to pure tones. Absolute thresholds were obtained for nine durations of a 3-kHz tone and five durations of a 1-kHz tone. The temporal integration functions were described using the negative exponential function proposed by Plomp and Bouman [J. Acoust. Soc. Am. 31, 749-758 (1959)]. The time constants obtained for zebra finches ar...
متن کاملColour vision and background adaptation in a passerine bird, the zebra finch (Taeniopygia guttata)
Today, there is good knowledge of the physiological basis of bird colour vision and how mathematical models can be used to predict visual thresholds. However, we still know only little about how colour vision changes between different viewing conditions. This limits the understanding of how colour signalling is configured in habitats where the light of the illumination and the background may sh...
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ژورنال
عنوان ژورنال: The Journal of Nutrition
سال: 1998
ISSN: 0022-3166,1541-6100
DOI: 10.1093/jn/128.12.2684s