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- Publications
- Influence
The Assessment of Psychological Strain in Work Contexts: Concerning the Structural Equivalency of Ni
- G. Mohr, A. Müller, Thomas Rigotti, Z. Aycan, F. Tschan
- Psychology
- 3 October 2006
Irritation as defined in this paper is the subjectively perceived emotional and cognitive strain in occupational contexts. The structural equivalence of the Arabic, Dutch, English, French, Italian,… Expand
Pollen hosts of western palaearctic bees of the genus Colletes (Hymenoptera: Colletidae) : the Asteraceae paradox
- A. Müller, Michael Kuhlmann
- Biology
- 1 December 2008
To assess the pollen hosts of 60 western palaearctic bee species of the genus Colletes (Colletidae), we microscopically analysed 1336 pollen loads of collected females. Twenty-six species (43.3%)… Expand
Specialized bees fail to develop on non-host pollen: do plants chemically protect their pollen?
Bees require large amounts of pollen for their own reproduction. While several morphological flower traits are known to have evolved to protect plants against excessive pollen harvesting by bees,… Expand
Incidence of pyrethroid-resistant oilseed rape pests in Germany.
- U. Heimbach, A. Müller
- Biology, Medicine
- Pest management science
- 1 February 2013
BACKGROUND
Failures in pollen beetle control using pyrethroids since 2005 indicated pyrethroid resistance in Germany. Therefore, resistance monitoring using bioassays was established in Germany for… Expand
Closely related pollen generalist bees differ in their ability to develop on the same pollen diet: evidence for physiological adaptations to digest pollen
- Claudio Sedivy, A. Müller, S. Dorn
- Biology
- 1 June 2011
Summary 1. Given the enormous quantitative pollen requirements of bees and their high efficiency in pollen removal, flowers should balance the need to attract bees for pollination on the one hand and… Expand
Long foraging distances impose high costs on offspring production in solitary bees.
- Antonia Zurbuchen, S. Cheesman, J. Klaiber, A. Müller, S. Hein, S. Dorn
- Biology, Medicine
- The Journal of animal ecology
- 1 May 2010
1. Solitary bees are central place foragers returning to their nests several times a day with pollen and nectar to provision their brood cells. They are especially susceptible to landscape changes… Expand
Irritation - ein Instrument zur Erfassung psychischer Beanspruchung im Arbeitskontext. Skalen- und Itemparameter aus 15 Studien
- G. Mohr, Thomas Rigotti, A. Müller
- Medicine
- 2005
Zusammenfassung. Irritation beschreibt subjektiv wahrgenommene emotionale und kognitive Beanspruchungen im Kontext der Erwerbsarbeit. Anhand von 15 Studien (N = 4 030) werden Skalen- und… Expand
Phylogeny and biogeography of bees of the tribe Osmiini (Hymenoptera: Megachilidae).
- C. Praz, A. Müller, B. Danforth, T. Griswold, A. Widmer, S. Dorn
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 October 2008
The Osmiini (Megachilidae) constitute a taxonomically and biologically diverse tribe of bees. To resolve their generic and suprageneric relationships, we inferred a phylogeny based on three nuclear… Expand
Evidence for pollinator sharing in Mediterranean nectar-mimic orchids: absence of premating barriers?
- S. Cozzolino, F. Schiestl, A. Müller, O. De Castro, A. Nardella, A. Widmer
- Biology, Medicine
- Proceedings of the Royal Society B: Biological…
- 22 June 2005
Pollinator specificity has traditionally been considered the main reproductive isolation mechanism in orchids. Among Mediterranean orchids, however, many species attract and deceive pollinators by… Expand
Patterns of Host-Plant Choice in Bees of the Genus Chelostoma: The Constraint Hypothesis of Host-Range Evolution in Bees
- Claudio Sedivy, C. Praz, A. Müller, A. Widmer, S. Dorn
- Biology, Medicine
- Evolution; international journal of organic…
- 1 October 2008
Abstract To trace the evolution of host-plant choice in bees of the genus Chelostoma (Megachilidae), we assessed the host plants of 35 Palearctic, North American and Indomalayan species by… Expand