86 Works

Data from: Early reproductive success in Drosophila males is dependent on maturity of the accessory gland

Hanna Ruhmann, Kristina U. Wensing, Nicole Neuhalfen, Jan-Hendrick Specker & Claudia Fricke
In a number of insect taxa, male sexual maturity is not always directly attained at adult eclosion. Sexual maturity is often defined behaviorally as mating success, or physiologically as the point when gametes are produced. Here, we show that the sexual maturation process in males is more complex than previously described and that a measure of maturity also needs to include post-mating traits. In many species mating success is tightly linked with size of the...

Data from: Gene expression changes in male accessory glands during ageing are accompanied by reproductive decline in Drosophila melanogaster

Mareike Koppik & Claudia Fricke
Senescence is accompanied by loss of reproductive functions. Here we studied reproductive ageing in Drosophila melanogaster males and asked whether the expected decline in male reproductive success is due to diminished functionality of the male accessory gland. The male accessory gland produces the majority of seminal fluid proteins (SFPs) transferred to the female at mating. SFPs induce female post-mating changes and are key to male reproductive success. We measured age-dependent gene expression changes for five...

Data from: Stress and early experience underlie dominance status and division of labour in a clonal insect

Abel Bernadou, Lukas Schrader, Julia Pable, Elisabeth Hoffacker, Karen Meusemann & Juergen Heinze
Cooperation and division of labour are fundamental in the “major transitions” in evolution. While the factors regulating cell differentiation in multicellular organisms are quite well understood, we are just beginning to unveil the mechanisms underlying individual specialization in cooperative groups of animals. Clonal ants allow studying which factors influence task allocation without confounding variation in genotype and morphology. Here, we subjected larvae and freshly hatched workers of the clonal ant Platythyrea punctata to different rearing...

Data from: Genetic differentiation within multiple common grassland plants supports seed transfer zones for ecological restoration

Walter Durka, Stefan G. Michalski, Kenneth W. Berendzen, Oliver Bossdorf, Anna Bucharova, Julia-Maria Hermann, Norbert Hölzel & Johannes Kollmann
Ecological restoration of grasslands is increasingly based on regional seeds derived from predefined seed transfer zones. However, the degree and spatial pattern of genetic differentiation among provenances of different seed transfer zones is largely unknown. We assessed the genetic differentiation among eight out of 22 German seed transfer zones for seven common grassland species (Arrhenatherum elatius, Centaurea jacea, Daucus carota, Galium album, Hypochaeris radicata, Knautia arvensis and Lychnis flos-cuculi) using AFLP markers. We analysed genetic...

Data from: Specificity of oral immune priming in the red flour beetle Tribolium castaneum

Momir Futo, Marie P. Sell, Megan A.M. Kutzer, Joachim Kurtz & Megan A. M. Kutzer
Immune specificity is the degree to which a host’s immune system discriminates among various pathogens or antigenic variants. Vertebrate immune memory is highly specific due to antibody responses. On the other hand, some invertebrates show immune priming, i.e. improved survival after secondary exposure to a previously encountered pathogen. Until now, specificity of priming has only been demonstrated via the septic infection route or when live pathogens were used for priming. Therefore, we tested for specificity...

Data from: The perception of caricatured emotion in voice

Caroline M. Whiting, Sonja A. Kotz, Joachim Gross, Bruno L. Giordano & Pascal Belin
Data for Whiting et al. (2020, Cognition): "The perception of caricatured emotion in voice". Raw behavioural data and sound stimuli.

Data from: Potentially peat-forming biomass of fen sedges increases with increasing nutrient levels

Tjorven Hinzke, Guixiang Li, Franziska Tanneberger, Elke Seeber, Camiel Aggenbach, Jelena Lange, Łukasz Kozub, Klaus-Holger Knorr, Juergen Kreyling & Wiktor Kotowski
Peat formation is a key carbon sequestration process in the terrestrial biosphere. In temperate fens, peat is mainly formed by below-ground biomass of vascular plants. Nutrient availability in temperate fens is naturally variable, and nowadays increasing due to atmospheric deposition, runoff from agriculture, and mineralization of peat caused by drainage. To maintain or restore peat formation, it is important to understand how increased nutrient availability influences the main controls of peat formation, i.e., below-ground biomass...

Soil microbial biomass and enzyme kinetics for the assessment of temporal diversification in agroecosystems

Ute Hamer, Michael Ulrich Thomas Meyer, Ulf-Niklas Meyer, Anja Radermacher, Philipp Götze, Heinz-Josef Koch & Christoph Scherber
In agroecosystems, temporal diversification creates a sequence of short-lived habitats through time. Crop species as well as the diversity of crops grown in sequence might affect soil biodiversity and nutrient cycling processes. In the present study, we focused on a long-term crop rotation established in 2006 in Lower Saxony, Germany on a Luvisol. Winter wheat (WW) and silage maize (SM) were grown in continuous cultivation as well as in rotations. WW rotations span up to...

Data from: Different frequency control mechanisms and the exploitation of frequency space in passerines

Franz Goller, Jay Love & Gabriel Mindlin
1. Birdsong is used in reproductive context and, consequently, has been shaped by strong natural and sexual selection. The acoustic performance includes a multitude of acoustic and temporal characteristics that are thought to honestly reveal the quality of the singing individual. 2. One major song feature is frequency and its modulation. Sound frequency can be actively controlled, but the control mechanisms differ between different groups. Two described mechanisms are pressure-driven frequency changes in suboscines and...

Host–Guest Complexes of Cyclodextrins and Nanodiamonds as a Strong Non‐Covalent Binding Motif for Self‐Assembled Nanomaterials

Frauke Schibilla, Jens Voskuhl, Natalie A. Fokina, Jeremy Dahl, Peter R. Schreiner & Bart Jan Ravoo
Abstract We report the inclusion of carboxy- and amine-substituted molecular nanodiamonds (NDs) adamantane, diamantane, and triamantane by β-cyclodextrin and γ-cyclodextrin (β-CD and γ-CD), which h...

Data from: Microsatellites reveal origin and genetic diversity of Eurasian invasions by one of the world's most notorious marine invader, Mnemiopsis leidyi (Ctenophora)

Thorsten Reusch, Sören Bolte, Maximiliane Sparwel, Anthony Moss & Jamileh Javidpour
Marine invasions take place at an increasing rate. When occurring in blooms, zooplanktivorous comb jellies of the genus Mnemiopsis are able to cause pelagic regime shifts in coastal areas, and may cause the collapse of commercially important fish populations. Using microsatellites, developed for the first time in the phylum Ctenophora, we show that Mnemiopsis leidyi has colonized Eurasia from two source regions. Our preliminary data set included 4 sites within the putative source region (US...

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