22 Works

A global phylogenomic study of the Thelypteridaceae

Susan Fawcett, Alan Smith, Michael Sundue, Gordon Burleigh, Emily Sessa, Li-Yaung Kuo, Cheng-Wei Chen, Weston Testo, Michael Kessler & David Barrington
The generic classification of the Thelypteridaceae has been the subject of much controversy. Proposed taxonomic systems have varied from recognizing more than 1000 species in the family within the single genus Thelypteris, to systems favoring upwards of 30 genera. Insights on intrafamilial relationships have been gained from recent phylogenetic studies, especially for the Neotropics; however, in the most recent classification, 10 of 30 recognized genera are either non-monophyletic or untested. In the present study, we...

A tradeoff between robustness to environmental fluctuations and speed of evolution

Max Schmid, Maria Paniw, Maarten Postuma, Arpat Ozgul & Frédéric Guillaume
The ability of a species to cope with both long-term and short-term environmental fluctuations might vary with the species' life history. While some life-history characteristics promote large and stable population sizes despite interannual environmental fluctuations, other life-history strategies might allow to evolve quickly in response to long-term gradual changes. In a theoretical study, we show that there is a tradeoff between both properties. Life-history characteristics that promote fast rates of evolution come at the expense...

Satellite data reveal differential responses of Swiss forests to unprecedented 2018 drought

Joan T. Sturm
The summer drought of 2018 caused major damages to forest ecosystems. In this dataset, various environmental variables (precipitation anomaly, temperature anomaly, climatic water balance anomaly, elevation, slope, aspect, exposition, potential direct incedent radiation, distance to the forest edge, tree type, and species heterogeneity) have been stratified into ten sections and the proportion of forest pixels with severe changes (equal or more than 10% either positive or negative) in the normalized difference water index (NDWI) of...

Reproductive strategies affect telomere dynamics across the life course

Barbara Tschirren, Ana Ángela Romero-Haro, Jennifer Morger & Mark F. Haussmann
Because parental care has a heritable basis, the benefits of receiving increased parental provisioning early in life are genetically linked to the costs of providing increased parental provisioning at adulthood. Reproductive strategies thus result in distinct cost-benefit syndromes across the life course that may shape individual health and ageing trajectories. Here we used an artificial selection approach in Japanese quail (Coturnix japonica) to test how reproductive strategies affect telomere length, a biomarker of somatic state,...

Data from: Conjugative plasmid transfer is limited by prophages but can be overcome by high conjugation rates

Carolin Wendling, Lukas Schwyter, Daniel Gehrig & Claudia Igler
Antibiotic resistance spread via plasmids is a serious threat to successfully fight infections and makes understanding plasmid transfer in nature crucial to prevent the rise of antibiotic resistance. Studies addressing the dynamics of plasmid conjugation have yet neglected one omnipresent factor: prophages (viruses integrated into bacterial genomes), whose activation can kill host and surrounding bacterial cells. To investigate the impact of prophages on conjugation, we combined experiments and mathematical modelling. Using E. coli, prophage lambda...

Fermur lengths of Drosophila melanogaster at different developmental temperatures and Wolbachia-infection types

Martin Kapun & Sina Lerch
To estimate the influence of developmental temperature and Wolbachia infections on body size in Drosophila melanogaster, we disected female flies and mounted left forelegs. Pictures were taken under a Leica DFC 490 microscope. Femur lengths, wich have proven to be a good proxy for bodysize, were measured in ImageJ. Our analyses revealed that temperature, but not Wolbachia infections strongly influenced female body size. See also the corresponing README.txt and the table "FullData.xlsx" within SupplementaryData.zip in...

Data and scripts from: Long term analysis of social structure: evidence of age-based consistent associations in male Alpine ibex

Alice Brambilla, Achaz Von Hardenberg, Claudia Canedoli, Francesca Brivio, Cédric Sueur & Christina Stanely
The folder contains the data and scripts used to produce the manuscript: "Long term analysis of social structure: evidence of age-based consistent associations in Alpine ibex" by Alice Brambilla, Achaz von Hardenberg, Claudia Canedoli, Francesca Brivio, Cédric Sueur and Christina R Stanley.

Isotopic niche overlap between sympatric Australian snubfin and humpback dolphins

Guido J. Parra, Zachary Wojtkowiak, Katharina J. Peters & Daniele Cagnazzi
Ecological niche theory predicts the coexistence of closely related species is promoted by resource partitioning and leads to the use of different ecological niches. Australian snubfin (Orcaella heinsohni) and humpback (Sousa sahulensis) dolphins live in sympatry throughout most of their range in northern Australia. We compared stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) in their skin to investigate resource partitioning between these ecologically similar species. Skin samples were collected from live Australian snubfin...

Roe deer microsatellite genotype data

Nina Vasiljevic
In the early 1800s, the European roe deer (Capreolus capreolus) was probably extirpated from Switzerland, due to overhunting and deforestation. After a federal law was enacted in 1875 to protect lactating females and young, and limiting the hunting season, the roe deer successfully recovered and recolonised Switzerland. In this study, we use mitochondrial DNA and nuclear DNA markers to investigate the recolonisation and assess contemporary genetic structure in relation to broad topographic features, in order...

Bimodal activity of diurnal flower visitation at high elevation

Xin Xu, Zong-Xin Ren, Judith Trunschke, Jonas Kuppler, Yan-Hui Zhao, Eva Knop & Hong Wang
Successful pollination in animal-pollinated plants depends on the temporal overlap between flower presentation and pollinator foraging activity. Variation in the temporal dimension of plant-pollinator networks has been investigated intensely across flowering seasons. However, over the course of a day, the dynamics of plant-pollinator interactions may vary strongly due environmental fluctuations. It is usually assumed there is a unimodal, diurnal, activity pattern, while alternative multi-modal types of activity patterns are often neglected and deserve greater investigation....

Richness, not evenness, of invasive plant species promotes invasion success into native plant communities via selection effects

Xue Wang, Xue Wang, Jiang Wang, Bing Hu, Wei-Long Zheng, Meng Li, Zhi-Xiang Shen, Fei-Hai Yu, Bernhard Schmid & Mai-He Li
Native plant communities are often invaded by multiple alien species. It is still unclear how increasing diversity of alien invasive species suppresses the growth of native species and thus contributes to invasion success. In the subtropical monsoon region of Southeast China, we experimentally created a native plant community with 18 herbaceous species. One week later, we let it be invaded by either zero (controls without invasion), one, two, four or eight alien plant species, with...

Data from: The megaherbivore gap after the non-avian dinosaur extinctions modified trait evolution and diversification of tropical palms

Renske E. Onstein, W. Daniel Kissling & H. Peter Linder
The Cretaceous–Paleogene (K-Pg) extinction of the non-avian dinosaurs (66 Ma) led to a 25 million year gap of megaherbivores (>1000 kg) before the evolution of megaherbivorous mammals in the Late Eocene (40 Ma). The botanical consequences of this ‘Paleocene megaherbivore gap’ (PMHG) remain poorly explored. We hypothesize that the absence of megaherbivores should result in changes in the diversification and trait evolution of associated plant lineages. We used phylogenetic time- and trait-dependent diversification models with...

Species interactions in three Lemnaceae species growing along a gradient of zinc pollution

Sofia Van Moorsel, Lorena Lanthemann & Sofia J. Moorsel
We tested whether the presence of a second species influenced the growth rate of the three duckweed species Lemna minor, Lemna gibba, and Lemna turionifera. We used four different Zn concentrations in a replicated microcosm experiment under sterile conditions, either growing the species in isolation or in a 2-species mixture. The cultures were kept in an incubator 20 °C with a light regime of 16/8h light/dark for 17 days. There is one data set with...

Volatile social environments can favour investments in quality over quantity of social relationships

Thomas G. Aubier & Hanna Kokko
Cooperation does not occur in a vacuum: interactions develop over time in social groups that undergo demographic changes. Intuition suggests that stable social environments favour developing few but strong reciprocal relationships (a 'focused' strategy), while volatile social environments favour the opposite: more but weaker social relationships (a 'diversifying' strategy). We model reciprocal investments under a quality-quantity tradeoff for social relationships. We find that volatility, counterintuitively, can favour a focused strategy. This result becomes explicable through...

Data from: A meiotic driver alters sperm form and function in house mice: a possible example of spite

Anna Lindholm & Lennart Winkler
The ability to subvert independent assortment of chromosomes is found in many meiotic drivers, such as the t haplotype in house mice Mus musculus, in which the t-bearing chromosomal homolog is preferentially transmitted to offspring. This is explained by a poison-antidote system, in which developing + and t sperm in testes of + /t males are exposed to ‘poison’ coded by t loci, from which t sperm are protected, allowing t sperm an overwhelming fertilisation...

Sequestration of defenses against predators drives specialized host plant associations in preadapted milkweed bugs (Heteroptera: Lygaeinae)

Georg Petschenka, Rayko Halitschke, Tobias Züst, Anna Roth, Sabrina Stiehler, Linda Tenbusch, Christoph Hartwig, Juan Francisco Moreno Gámez, Robert Trusch, Jürgen Deckert, Kateřina Chalušová, Andreas Vilcinskas & Alice Exnerová
Host plant specialization across herbivorous insects varies dramatically, but while the molecular mechanisms of host-plant adaptations are increasingly known, we often lack a comprehensive understanding of the selective forces that favor specialization. The milkweed bugs (Heteroptera: Lygaeinae) are engaged in ancestrally specialized associations with plants of the Apocynaceae from which they commonly sequester cardiac glycosides for defense, facilitated by resistant Na+/K+-ATPases and adaptations for transport, storage and discharge of toxins. Here, we show that three...

Database PCA: A middle Pleistocene Homo from Nesher Ramla, Israel

Hila May, Israel Hershkovitz, Rachel Sarig, Ariel Pokhojaev, Dominique Grimaud-Hervé, Emiliano Bruner, Cinzia Fornai, Rolf Quam, Juan-Luis Arsuaga, Viktoria A. Krenn, Maria Martinón-Torres, José María Bermúdez De Castro, Laura Martín-Francés, Viviane Slon, Lou Albessard-Ball, Amélie Vialet, Tim Schüler, Giorgio Manzi, Antonio Profico, Fabio Di Vincenzo, Gerhard W. Weber & Yossi Zaidner
It has long been believed that Neanderthals originated and flourished on the European continent. However, recent morphological and genetic studies have suggested that they may have received a genetic contribution from a yet unknown non-European group. Here we report on the recent discovery of archaic Homo fossils from the site of Nesher Ramla, Israel, which we dated to 140,000 to 120,000 years ago. Comprehensive qualitative and quantitative analyses of the parietal bones, mandible, and lower...

Data from: Dispersal decreases survival but increases reproductive opportunities for subordinates in a cooperative breeder

Nino Maag, Maria Paniw, Gabriele Cozzi, Marta Manser, Tim Clutton-Brock & Arpat Ozgul
In most socially structured populations, the formation of new groups depends on the survival and reproduction of dispersing individuals. Quantifying vital rates in dispersers, however, is difficult due to logistic challenges of following wide-ranging animals. Here, using data from free-ranging meerkats (Suricata suricatta), we estimated survival and reproduction of dispersing and established resident females. Meerkat groups consist of a dominant pair and several subordinate helpers. Female helpers are evicted from their resident groups by the...

Data from: Mridha S and Kümmerli R (2022) Enforced specialization fosters mutual cheating and not division of labour in the bacterium Pseudomonas aeruginosa

Subham Mridha & Rolf Kümmerli
A common way for bacteria to cooperate is via the secretion of beneficial public goods (proteases, siderophores, biosurfactants) that can be shared among individuals in a group. Bacteria often simultaneously deploy multiple public goods with complementary functions. This raises the question whether natural selection could favour division of labour where subpopulations or species specialise in the production of a single public good, whilst sharing the complementary goods at the group level. Here we use an...

Data from: Distinct body-size responses to warming climate in three rodent species

Ke Li, Stefan Sommer, Zaixue Yang, Yongwang Guo, Yaxian Yue, Arpat Ozgul & Deng Wang
In mammals, body-size responses to warming climates are diverse, and the mechanisms underlying these differentresponses have been little investigated. Using temporal and spatial datasets of three rodent species distributed across different climatic zones in China, we investigated temporal and spatial trends of body size (length and mass), identified the critical drivers of these trends, and inferred the potential causes underlying the distinct body-size responses to the critical drivers. We found that body mass of all...

Short-term social dynamics following anthropogenic and natural disturbances in a free-living mammal

Gabriella Gall, Julian Evans, Matthew Silk, Chelsea Ortiz-Jimenez & Jennifer Smith
Anthropogenic disturbances are widely recognized for their far-reaching consequences on the survival and reproduction of wildlife, but we understand comparatively little about their effects on the social lives of group-living animals. Here we examined these short-term changes in affiliative behavior as part of a long-term study on a human-tolerant and socially flexible population of California ground squirrels (Otospermophilus beecheyi). We used social network analysis to examine short-term changes in affiliative behavior and individual consistency in...

Individual dietary specialization in a generalist bee varies across populations but has no effect on the richness of associated microbial communities

Marilia Palumbo Gaiarsa, Sandra Rehan, Matthew Barbour & Quinn McFrederick
Despite the increasingly documented occurrence of individual specialization, the relationship between individual consumer interactions and diet-related microbial communities in wild populations is still unclear. Using data from nests of the bee Ceratina australensis from three different wild populations, we combine metabarcoding and network approaches to explore the existence of individual variation in resource use within and across populations, and whether dietary specialization affects the richness of pollen-associated microbes. We reveal the existence of marked dietary...

Registration Year

  • 2022
    22

Resource Types

  • Dataset
    22

Affiliations

  • University of Zurich
    22
  • Southern Cross University
    1
  • Centre national de la recherche scientifique
    1
  • Estación Biológica de Doñana
    1
  • Binghamton University
    1
  • University of Hohenheim
    1
  • Bucknell University
    1
  • National Tsing Hua University
    1
  • University of North Carolina at Chapel Hill
    1
  • University of Cambridge
    1