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pro vyhledávání: '"Ute E. Zimmer"'
Autor:
Ute E. Zimmer, Gerhard Thielcke
Publikováno v:
Ethology. 73:191-196
7 of 8 juvenile chiffchaff males, caught between Jul. 28 and Aug. 18 in southwest Germany, developed song in acoustic isolation which corresponded to the song of their nesting areas (Figs. 1, 2, 3). They must have learned this song institution betwee
Autor:
Ute E. Zimmer
Publikováno v:
Zeitschrift für Tierpsychologie. 58:25-30
The reaction of male and female Chiffchaffs (Phylloscopus collybita) to different kinds of specific and nonspecific songs was investigated by recording heart rate alterations in the laboratory. In previous field experiments only the reaction of male