#Wissenswertes
Zeidlerei – die Sicht des Baumes, oder wer entscheidet was unsachlich ist?
Zeidlerei – die Sicht des Baumes, oder wer entscheidet was unsachlich ist? Lesen Sie hier.mehr dazu.
29. Mai 2017
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Wild honey bee colonies—both truly wild (in trees and buildings) and simulated wild (in small hives)—were studied to determine their life-history traits, to see if these traits have changed now that these colonies are infested with Varroa destructor . Most colonies (97%) survive summers, but only 23% of founder (first-year) colonies and 84% of established colonies survive winters. Established colonies have a mean lifespan of 5–6 years and most (87%) have a queen turnover (probably by swarming) each summer. A population model shows that these life-history traits produce a stable population of colonies. Remarkably, the suite of colony life-history traits found in the 2010s (with V. destructor ) matches that found in the 1970s (without V. destructor ). It seems likely that the wild colonies living near Ithaca, NY, possess defenses against V. destructor that are not costly.
Zeidlerei – die Sicht des Baumes, oder wer entscheidet was unsachlich ist? Lesen Sie hier.mehr dazu.
Natürliche Verteidigungsmechanismen der Honigbiene gegen die Varroamilbe Wild honey bee colonies—both truly wild (in trees and buildings) and simulated wild (in smallhives)—were studied to determine their life-history traits, to
Von André Wermelinger, Geschäftsführer FreeTheBees Regional, lokal und meteorologisch unterschiedlich, sind ab Mitte April sind die Bienen wieder in der Lage, auch ohne eigene Futterreserven und Notzufütterungen über die Runde