Rufford, Southport, West Lancashire, Großbritannien, 5. April 2015. Ostern Entlein Tage bei Martin bloße Wetlands Centre und Vogelschutzgebiet im Burscough. Eine gemeinsame Stockente hat eine Brut von 14 frisch geschlüpfte downy Getuftete Entenküken. Die übliche Kupplung 8 - 13 Eier, die für 27 - 28 Tagen schlüpfen mit 50 - 60 Tagen zu Jungen bebrütet werden. Die flauschigen jungen Entenküken precocial und vollständig in der Lage, Schwimmen, sobald Sie schlüpfen. Kindliche Prägung zwingt Sie zu instinktiv in der Nähe der Mutter für Wärme und Schutz.
3504 x 2336 px | 29,7 x 19,8 cm | 11,7 x 7,8 inches | 300dpi
Aufnahmedatum:
5. April 2015
Ort:
Rufford, Southport, West Lancashire, UK
Weitere Informationen:
Dieses Bild kann kleinere Mängel aufweisen, da es sich um ein historisches Bild oder ein Reportagebild handel
The best-known form of imprinting is filial imprinting, in which a young animal acquires several of its behavioral characteristics from its parent. It is most obvious in nidifugous birds, which imprint on their parents and then follow them around. It was first reported in domestic chickens, by the 19th-century amateur biologist Douglas Spalding. It was rediscovered by the early ethologist Oskar Heinroth, and studied extensively and popularized by his disciple Konrad Lorenz working with greylag geese. Lorenz demonstrated how incubator-hatched geese would imprint on the first suitable moving stimulus they saw within what he called a "critical period" between 13–16 hours shortly after hatching. For example, the goslings would imprint on Lorenz himself (to be more specific, on his wading boots), and he is often depicted being followed by a gaggle of geese who had imprinted on him. Lorenz also found that the geese could imprint on inanimate objects. In one experiment, they followed a box placed on a model train in circles around the track.[1] Filial imprinting is not restricted to non-human animals that are able to follow their parents, however. The filial imprinting of birds was a primary technique used to create the movie Winged Migration (Le Peuple Migrateur), which contains a great deal of footage of migratory birds in flight. The birds imprinted on handlers, who wore yellow jackets and honked horns constantly. The birds were then trained to fly along with a variety of aircraft, primarily ultralights. Imprinted geese and cranes flying with an ultralight aircraft The Italian hang-glider pilot Angelo d'Arrigo extended this technique. D'Arrigo noted that the flight of a non-motorised hang-glider is very similar to the flight patterns of migratory birds: Both use updrafts of hot air (thermal currents) to gain altitude that then permits soaring flight over distance. He used this fact to enable the re-introduction into the wild of threatened species of ra
