منابع مشابه
Mechanisms of magnetic orientation in birds.
Behavior and electrophysiological studies have demonstrated a sensitivity to characteristics of the Geomagnetic field that can be used for navigation, both for direction finding (compass) and position finding (map). The avian magnetic compass receptor appears to be a light-dependent, wavelength-sensitive system that functions as a polarity compass (i.e., it distinguishes poleward from equatorwa...
متن کاملMechanisms of song perception in oscine birds.
Songbirds share a number of parallels with humans that make them an attractive model system for studying the behavioral and neurobiological mechanisms that underlie the learning and processing of vocal communication signals. Here we review the perceptual and cognitive mechanisms of audition in birds, and emphasize the behavioral and neural basis of song recognition. Where appropriate, we point ...
متن کاملEndothermy in birds: underlying molecular mechanisms.
Endothermy is significant in vertebrate evolution because it changes the relations between animals and their environment. How endothermy has evolved in archosaurs (birds, crocodiles and dinosaurs) is controversial especially because birds do not possess brown adipose tissue, the specialized endothermic tissue of mammals. Internal heat production is facilitated by increased oxidative metabolic c...
متن کاملWild birds as human food.
Thayer, R. H. & Davis, G. T. (1948). Poult. Sci. 27, 176. Thayer, R. H., Jaap, R. G. & Penquite, R. (1944). Poult. Sci. 23, 5 5 5 . Thayer, R. H., Jaap, R. G. & Penquite, R. (1945). Poult. Sci. 24, 483. Thornton, P. A. & Moreng, R. E. (1958). Poult. Sci. 37, 554. West, J. W. (1956). Poult. Sci. 35, 835. Wheeler, R. S., Hoffmann, E. & Graham, C. L. (1948). Poult. Sci. 27, 103. White-Stevens, R. ...
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New experiments on a bird species able to remember the sites of thousands of cached seeds have revealed how a site can be specified by combining distance information from several landmarks.
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ژورنال
عنوان ژورنال: Scientific American
سال: 1910
ISSN: 0036-8733
DOI: 10.1038/scientificamerican03191910-242