536 Works

Data from: Out-of-sample predictions from plant–insect food webs: robustness to missing and erroneous trophic interaction records

Ian S. Pearse & Florian Altermatt
With increasing biotic introductions, there is a great need for predictive tools to anticipate which new trophic interactions will develop and which will not. Phylogenetic constraint of interactions in both native and novel food webs can make some novel interactions predictable. However, many food webs are sparsely sampled, or may include inaccurate interactions. In such cases, it is unclear whether modeling methods are still useful to anticipate novel interactions. We ran bootstrap simulations of host-use...

Enemy exclusion effects on biodiversity-productivity relationship in subtropical forest experiment

Yuanyuan Huang, Andreas Schuldt, Lydia Hönig, Bo Yang, Xiaojuan Liu, Helge Brülheide, Keping Ma, Bernhard Schmid & Pascal Niklaus
This data set is described in full detail in Huang et al. (2022) Journal of Ecology XXX. In brief, we used a large tree biodiversity experiment (BEF-China), established in 2009-2010, to test whether the application of fungicide or insecticide changes observed tree species richness effects on tree growth. We used a subset of plots in which tree species numbers ranged from 1 to 8. To these plots, a factorial split-plot treatment was added in April...

Data from: Ecology and evolution of the diaspore 'burial syndrome'

Aelys Muriel Humphreys, Alexandre Antonelli, Michael D. Pirie & H. Peter Linder
Hygroscopically active awns or "bristles" have long intrigued scientists. Experimental evidence shows that they are important for diaspore burial in the correct orientation, thereby increasing successful seed germination and seedling survival. Despite these ecological advantages, 38 of the 280 species of grasses in Danthonioideae lack awns. We provide the first study of awns in a phylogenetic context and show that whilst the awnless state has arisen ca. 25 times independently, the ecological disadvantage of not...

Data from: Highly asymmetric fine-scale genetic structure between sexes of African striped mice and indication for condition dependent alternative male dispersal tactics

Nils Solmsen, Jes Johannesen & Carsten Schradin
Sex-biased dispersal is observed in many taxa, but few studies have compared sex-biased dispersal among and within populations. We addressed the magnitude and habitat dependency of sex-biased dispersal in social African striped mice by separating group-related from population-related genetic variance to understand the contribution of each sex to deme structure. As dispersal over unoccupied habitat is likely to be more costly than dispersal within a population, we predicted that individuals leaving the natal population have...

Data from: Multiple continental radiations and correlates of diversification in Lupinus (Leguminosae): testing for key innovation with incomplete taxon sampling

Christopher S. Drummond, Ruth J. Eastwood, Silvia T. S. Miotto & Colin E. Hughes
Replicate radiations provide powerful comparative systems to address questions about the interplay between opportunity and innovation in driving episodes of diversification and the factors limiting their subsequent progression. However, such systems have been rarely documented at intercontinental scales. Here, we evaluate the hypothesis of multiple radiations in the genus Lupinus (Leguminosae), which exhibits some of the highest known rates of net diversification in plants. Given that incomplete taxon sampling, background extinction, and lineage-specific variation in...

Data from: Polyandry and the decrease of a selfish genetic element in a wild house mouse population

Andri Manser, Anna K. Lindholm, Barbara König & Homayoun C. Bagheri
Despite deleterious effects on individuals, the t haplotype is a selfish genetic element present in many house mouse populations. By distorting the transmission ratio, +/t males transmit the t haplotype to up to 90% of their offspring. However, t/t individuals perish in utero. Theoretical models based on these properties predict a much higher t frequency than observed, leading to the t paradox. Here, we use empirical field data and theoretical approaches to investigate whether polyandry...

Data from: High temperatures reveal cryptic genetic variation in a polymorphic female sperm storage organ

David Berger, Stephanie Sandra Bauerfeind, Wolf Ulrich Blanckenhorn & Martin Andreas Schäefer
Variation in female reproductive morphology may play a decisive role in reproductive isolation by affecting the relative fertilization success of alternative male phenotypes. Yet, knowledge of how environmental variation may influence the development of the female reproductive tract and thus alter the arena of post-copulatory sexual selection is limited. Yellow dung fly females possess either three or four sperm storage compartments, a polymorphism with documented influence on sperm precedence. We performed a quantitative genetics study...

Data from: Multiple quantitative trait loci influence intra-specific variation in genital morphology between phylogenetically distinct lines of Drosophila montana

Martin A Schäfer, Jarkko Routtu, Jorge Vieira, Anneli Hoikkala, Mike G Ritchie & Christian Schlötterer
The evolution of animal genitalia has gained renewed interest, because of their potential roles during sexual selection and early stages of species formation. Although central to understanding the evolutionary process, knowledge of the genetic basis of natural variation in genital morphology is limited to a very few species. Using an out-bred cross between phylogenetically distinct lines of Drosophila montana, we characterized quantitative trait loci (QTLs) affecting the size and shape of the distiphallus, a prominent...

Data from: A lectin-mediated resistance of higher fungi against predators and parasites

Silvia Bleuler-Martínez, Alex Butschi, Mattia A Garbani, Martin Wälti, Therese Wohlschlager, Eva Potthoff, Jerica Sabotiĉ, Jure Pohleven, Peter Lüthy, Michael O Hengartner, Markus Aebi & Markus Künzler
Fruiting body lectins are ubiquitous in higher fungi and characterized by being synthesized in the cytoplasm and up-regulated during sexual development. The function of these lectins is unclear. A lack of phenotype in sexual development upon inactivation of the respective genes argues against a function in this process. We tested a series of characterized fruiting body lectins from different fungi for toxicity towards the nematode Caenorhabditis elegans, the mosquito Aedes aegypti and the amoeba Acanthamoeba...

Data from: Climate effects on life cycle variation and population genetic architecture of the black bean aphid, Aphis fabae

Christoph Sandrock, Jabraeil Razmjou & Christoph Vorburger
Aphid species commonly have different reproductive modes ranging from cyclical to obligate parthenogenesis. The distribution of life cycle variation in aphids is generally determined by ecological forces, mainly climate, because only sexually produced diapausing eggs can survive harsh winters. Aphids are thus interesting models to investigate intrinsic and environmental factors shaping the competition among sexual and asexual lineages. We conducted a Europe-wide sampling of black bean aphids, Aphis fabae, and combined population genetic analyses based...

Data from: Gizzard vs. teeth, it’s a tie: food-processing efficiency in herbivorous birds and mammals and implications for dinosaur feeding strategies

Julia Fritz, Jürgen Hummel, Ellen Kienzle, Oliver Wings, W. Jürgen Streich & Marcus Clauss
Particle size reduction is a primary means of improving efficiency in herbivores. The mode of food particle size reduction is one of the main differences between herbivorous birds (gizzard) and mammals (teeth). For a quantitative comparison of the efficiency of food comminution, we investigated mean fecal particle sizes (MPS) in 14 herbivorous bird species and compared these with a data set of 111 non-ruminant herbivorous mammal species. In general MPS increased with body mass, but...

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