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Using geometric morphometrics and standard morphometry to discriminate three honeybee subspecies
Honeybee (Apis mellifera) subspecies usually are distinguished by standard morphometry methods, based mainly on multivariate analysis of distances and angles. Recently another method of statisticalExpand
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Quantifying honey bee mating range and isolation in semi-isolated valleys by DNA microsatellite paternity analysis
Honey bee males and queens mate in mid air and can fly many kilometres on their nuptial flights. The conservation of native honey bees, such as the European black bee (Apis mellifera mellifera),Expand
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Queen and worker policing in the tree wasp Dolichovespula sylvestris
Insect societies are sometimes exploited by workers who reproduce selfishly rather than help to rear the queen’s offspring. This causes a conflict-of-interest with the mother queen and, frequently,Expand
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Preemptive Defensive Self‐Sacrifice by Ant Workers
Worker insects altruistically sacrifice their own reproduction to rear nondescendant kin. This sacrifice reaches its most spectacular level in suicidal colony defense. Suicidal defense, such as whenExpand
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Shorter-lived workers start foraging earlier
In social insects it is often observed that young workers perform tasks inside the nest and later switch to tasks outside the nest. By doing this the workers maximize their expected longevity,Expand
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Rural avenues as a refuge for feral honey bee population
Several honey bee (Apis mellifera) subspecies are in danger of local extinction because their feral population have almost completely disappeared. An important threat to the feral populations of beesExpand
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Wing geometric morphometrics and microsatellite analysis provide similar discrimination of honey bee subspecies
Identification of honey bee (Apis mellifera) subspecies is important for their protection. It is also used by queen breeders to maintain some breeding lines. In this study, we compared three methodsExpand
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Nuclear and mitochondrial patterns of introgression into native dark bees (Apis mellifera mellifera) in Poland
Summary The genetic diversity of the north and western European subspecies of honey bee, Apis mellifera mellifera (the “dark bee”) is severely endangered due to hybridization with introduced bees ofExpand
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Worker policing in the common wasp Vespula vulgaris is not aimed at improving colony hygiene
Abstract.In insect societies, eggs laid by workers are frequently killed by other workers – a behaviour known as “worker policing”. The traditional explanation of worker policing is that it is aExpand
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Co-occurrence of three types of egg policing in the Norwegian wasp Dolichovespula norwegica
In insect societies, workers often try to challenge the reproductive monopoly of the queen by laying their own eggs. Successful worker reproduction, however, is frequently prevented by queen policingExpand
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