A. Müller

Publications153
h-index27
Citations2,883
Highly Influential Citations192
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Maximum foraging ranges in solitary bees: only few individuals have the capability to cover long foraging distances
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Quantitative pollen requirements of solitary bees: Implications for bee conservation and the evolution of bee–flower relationships
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Pollen hosts of western palaearctic bees of the genus Colletes (Hymenoptera: Colletidae) : the Asteraceae paradox
TLDR
The pattern of use of Asteroideae pollen by the Colletes bees supports recent findings that this pollen possesses unfavourable or protective properties, which render its digestion difficult, and suggests that bees need physiological adaptations to successfully utilize it.
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Convergent evolution of morphological specializations in Central European bee and honey wasp species as an adaptation to the uptake of pollen from nototribic flowers (Hymenoptera, Apoidea and…
TLDR
The raised position of the anthers in nototribic flowers as a possible means to reduce excessive pollen losses caused by pollen-collecting hymenopterans is discussed.
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Specialized bees fail to develop on non-host pollen: do plants chemically protect their pollen?
TLDR
The results strongly suggest that pollen of these four taxonomic groups possess protective properties that hamper digestion and thus challenge the general view of pollen as an easy-to-use protein source for flower visitors.
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Incidence of pyrethroid-resistant oilseed rape pests in Germany.
TLDR
The intensive use of only one mode of action for many years is risky, because even pest insects with a low intrinsic resistance risk may develop resistance, so resistance strategies need to include several control options for pest insects needing regular treatments.
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Ecological and seasonal patterns in the diversity of a species-rich bee assemblage (Hymenoptera: Apoidea: Apiformes)
TLDR
The present two year study traced the ecological and seasonal patterns on 2 km2 of a southern slope in the Swiss Alps, ranging from 1150 to 1550 m above sea level, and identified one of the most diverse bee faunas in Central and Northern Europe, consisting of a statistically estimated 280 species.
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First steps to analyse pyrethroid resistance of different oil seed rape pests in Germany
TLDR
The laboratory methods used showed good reproducibility and the field collection method of the different pest species resulted in sufficient number of test insects in many cases, and data obtained from the laboratory can not directly be used to predict possible resistance in the field but have to be validated with results from the field.
Long foraging distances impose high costs on offspring production in solitary bees.
TLDR
The results of this study clearly indicate that a close neighbourhood of suitable nesting and foraging habitats is crucial for population persistence and thus conservation of endangered solitary bee species.
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Closely related pollen generalist bees differ in their ability to develop on the same pollen diet: evidence for physiological adaptations to digest pollen
TLDR
The observed differences in larval survival of these two Osmia species when reared on the same pollen diet as well as their failure to develop on Tanacetum pollen clearly demonstrate that bees require physiological adaptations to cope with the unfavourable chemical properties of certain pollen.
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