Daniel und die griechische Gefahr

von Alfred Bertholet

[Nicht-ärztliches Tagebuch: Januar - Mai 1752]

Handschrift

[Nicht-ärztliches Tagebuch: Juni - Dezember 1752]

Handschrift

An di remišin keisrlichi oich in Germanien und tzu Jerušalajim kiniglichi maiśṭeṭ ... : kunkuluzum fon 7. nowembr ... 1752 ... tzu der zochin Dawid Me'ir Juda ... enṭgegin ... Lib Aizik un Ziskind Zamuel Šṭerin ...

Moše Ben- ... Sendr Broinšwaig

Nothgedrungene Rechtsbefugte Vorstellung, Beschwehrung und diverses unterthäniges Bitten unser Derer provisionaliter verordneten dreyen Casten-Meistern Contra Beer Löw Isaac und Süßkind Samuel Stern : Ad Decreta de 29. Octobr. 1751 & 7. Jan. und 1. Martii 1752 ; Cum Postscripto

[Jacob Ochs ; Beer Hertz Oppenheimer ; Moyses Benedickt Beyfuß] [[Elektronische Ressource]]

Ms.Ff.F.Stoltze 3. 264 - Brief von Daniel Saul und Elly Saul an Friedrich Stoltze

Glückwünsche zum 72. Geburtstag (Gedicht)

To eat or not to eat—relationship of lichen herbivory by snails with secondary compounds and field frequency of lichens

Aims The biochemical defense of lichens against herbivores and its relationship to lichen frequency are poorly understood. Therefore, we tested whether chemical compounds in lichens act as feeding defense or rather as stimulus for snail herbivory among lichens and whether experimental feeding by snails is related to lichen frequency in the field. Methods In a no-choice feeding experiment, we fed 24 lichen species to snails of two taxa from the Clausilidae and Enidae families and compared untreated lichens and lichens with compounds removed by acetone rinsing. Then, we related experimental lichen consumption with the frequency of lichen species among 158 forest plots in the field (Schwäbische Alb, Germany), where we had also sampled snail and lichen species. Important findings In five lichen species, snails preferred treated samples over untreated controls, indicating chemical feeding defense, and vice versa in two species, indicating chemical feeding stimulus. Interestingly, compared with less frequent lichen species, snails consumed more of untreated and less of treated samples of more frequent lichen species. Removing one outlier species resulted in the loss of a significant positive relationship when untreated samples were analyzed separately. However, the interaction between treatment and lichen frequency remained significant when excluding single species or including snail genus instead of taxa, indicating that our results were robust and that lumping the species to two taxa was justified. Our results imply lichen-feeding snails to prefer frequent lichens and avoid less frequent ones because of secondary compound recognition. This supports the idea that consumers adapt to the most abundant food source.

Genetic composition, genetic diversity, and small-scale environmental variation matter for the experimental reintroduction of a rare plant

Aims Reintroduction has become an important tool for the management of endangered plant species. We tested the little-explored effects of small-scale environmental variation, genotypic composition (i.e. identity of genotypes), and genotypic diversity on the population survival of the regionally rare clonal plant Ranunculus reptans. For this species of periodically inundated lakeshores genetic differentiation had been reported between populations and between short-flooded and long-flooded microsites within populations.Methods We established 306 experimental test populations at a previously unoccupied lake shore, comprising either monocultures of 32 genotypes, mixtures of genotypes within populations or mixtures of genotypes between populations. In 2000, three years after planting out at the experimental site, a long-lasting flood caused the death of half of the experimental populations. In 2003, an extreme drought resulted in the lowest summer water levels ever measured.Important findings Despite these climatic extremes, 27 of the established populations survived until the end of the experiment in December 2003. The success of experimental populations largely differed between microsites. Moreover, the success of genotype monocultures depended on genotype and source population. Genetic differentiation between microsites played a minor role for the success of reintroduction. After the flood, populations planted with genotypes from different source populations increased in abundance, whereas populations with genotypes from single source populations and genotype monocultures decreased. We conclude that sources for reintroductions need to be selected carefully. Moreover, mixtures of plants from different populations appear to be the best choice for successful reintroduction, at least in unpredictably varying environments.

Thrombophilie in Schwangerschaft und Wochenbett

Thrombophilien sind assoziiert mit einer erhöhten Neigung zu venösen Thromboembolien (VTE) und mit einem erhöhten Risiko für Schwangerschaftskomplikationen. Heutige Labortests können jedoch nur einen Teil der Thrombophilien erkennen. Im folgenden Artikel stellen wir den aktuellen Wissensstand zum Screening und Management von Thrombophilien in der Schwangerschaft und im Wochenbett dar.

Daniel Deronda

von George Eliot. Deutsch von Adolf Strodtmann

Daniel in der Löwengrube [Illustration]

Alfred Rethel