Ameisen lernen die Verteilung verschiedener Düfte in der Nestumgebung und setzen das wie eine Landkarte ein.
Hat jedes Nest einen eigenen Duft? Oder riechen alle Nester gleich?
Ameisen lernen die Verteilung verschiedener Düfte in der Nestumgebung und setzen das wie eine Landkarte ein.
Hat jedes Nest einen eigenen Duft? Oder riechen alle Nester gleich?
For fear of retaliation, birds accept and raise brood parasites’ young.
cuckoo’s egg out, the brood parasites take their revenge by destroying the entire nest
In cities birds have fewer and smaller offspring than in rural areas
For the study, citizens with an interest in nature could sponsor a nest box and observe
Complete brood failure in blue tits is almost always associated with the sudden and permanent disappearance of one of the parents. The remaining partner tries to compensate the loss. Often at least some of the nestlings reached fledgling age. Single parent males generally do worse, probably because they are not able to keep their chicks warm.
between 8-15 eggs, of which a varying number of young will survive to leave the nest
Lauter Verkehr stört normale Stressreaktionen und verzögert das Wachstum von Zebrafinken
auf das Immunsystem zu vermeiden.“ Kleinere Küken Zebrafinkenküken, die in einem Nest
Female songbird promiscuity can reduce the negative consequences of inbreeding in socially monogamous birds
Female blue tits choose only one social partner, who defends a territory with a nest
Forscher identifizieren ein Pheromon im Urin männlicher Weißkehl-Buntbarsche, das Weibchen zur Eiablage anregt
einerseits die Aggressivität der anderen Männchen hemmen, andererseits die Weibchen zum Nest
Blue tits that often foraged together during winter were more likely to end up as breeding pairs or as extra-pair partners, whereby bonds between future breeding partners seem to establish earlier in winter than those between future extra-pair partners.
social associations during foraging events at local bird feeders and while visiting nest-boxes
Female songbird promiscuity can reduce the negative consequences of inbreeding in socially monogamous birds
Female blue tits choose only one social partner, who defends a territory with a nest
