ZusammenfassungIch habe in diesem Aufsatz kurz anzudeuten versucht, was meiner Ansicht nach das Wesentliche in Fragestellung und Methode der Ethologie ist und weshalb wir in Konrad Lorenz den Begründer moderner Ethologie erblicken. Hierbei habe ich vielleicht das Arbeitsgebiet der Ethologie weiter gefaßt, als unter Ethologen gebräuchlich ist. Wenn man aber die viel...... hiện toàn bộ
AbstractThe “Cultural Transmission Hypothesis” and the “Alerting Others Hypothesis” of enemy recognition in birds was examined in mobbing experiments with captive blackbirds. Observer birds learned to mob a novel non‐raptorial bird more strongly as a consequence of witnessing another bird mob strongly at the site of presentation. Strength of the observer's enhanced...... hiện toàn bộ
T. H. Clutton‐Brock, P. J. Greenwood, Roger Powell
AbstractRecent studies of primates have questioned the importance of dominance hierarchies in groups living under natural conditions. In a herd of Highland ponies and one of Highland cattle grazing under free‐range conditions on the Isle of Rhum (Inner Hebrides) well defined hierarchies were present. The provision of food produced a marked increase in the...... hiện toàn bộ