54 Works

Carbon and nitrogen flux, meteorological, management and soil data from a grazed, cut and fertilised temperate grassland in south east Scotland

S.K. Jones, C. Helfter, M. Anderson, M. Coyle, C. Campbell, D. Famulari, C. Di Marco, N. Van Dijk, Y.S. Tang, C.F.E. Topp, R. Kiese, R. Kindler, J. Siemens, M. Schrumpf, K. Kaiser, E. Nemitz, P.E. Levy, R.M. Rees, M.A. Sutton & U.M. Skiba
This dataset contains measured daily values of precipitation, air and soil temperature, soil water content, measured net ecosystem exchange (NEE) fluxes using eddy covariance, calculated gross primary production (GPP), terrestrial ecosystem respiration (TER) and net biome production (NBP) fluxes using an online tool (http://www.bgc-jena.mpg.de/~MDIwork/eddyproc/upload.php), measured fluxes of methane and nitrous oxide using static chambers and measured fluxes of nitrous oxide using eddy covariance, measured fluxes of nitrogen oxides (NOx) using automatic chambers, measured nitrogen and...

Data from: Presence of same-sex kin promotes explorative behavior in subadult cichlid fish

Simon Vitt, Iris Madge Pimentel & Timo Thünken
While the importance of kin discrimination, i.e. kin recognition and subsequent differential treatment of kin and non-kin, is well established for kin-directed cooperation or altruism, the role of kin discrimination in the context of kin competition and kin avoidance is largely unexplored. Theory predicts that individuals avoiding competition with kin should be favored by natural selection due to indirect fitness benefits. Using an experimental approach, we investigated whether the presence of same-sex kin affects avoidance...

Data for: Parasitoids indicate major climate-induced shifts in Arctic communities

Tuomas Kankaanpää, Eero Vesterinen, Bess Hardwick, Niels Martin Martin Schmidt, Tommi Andersson, Paul Eric Aspholm, Isabel Barrio, Niklas Beckers, Joël Bêty, Tone Birkemoe, Melissa DeSiervo, Katherine Drotos, Dorothee Ehrich, Olivier Gilg, Vladimir Gilg, Nils Hein, Toke Høye, Kristian Jakobsen, Camille Jodouin, Jesse Jorna, Mikhail Kozlov, Jean-Claude Kresse, Don-Jean Leandri-Breton, Nicolas Lecomte, Maia Olsen … & Tomas Roslin
Climatic impacts are especially pronounced in the Arctic, which as a region is warming twice as fast as the rest of the globe. Here, we investigate how mean climatic conditions and rates of climatic change impact parasitoid insect communities in 16 localities across the Arctic. We focus on parasitoids in a wide-spread habitat, Dryas heathlands, and describe parasitoid community composition in terms of larval host use (i.e. parasitoid use of herbivorous Lepidoptera versus pollinating Diptera)...

Multituberculate mammals from the Middle Jurassic of Western Siberia, Russia, and the origin of Multituberculata

Alexander O. Averianov, Thomas Martin, Alexey V. Lopatin, Julia A. Schultz, Rico Schellhorn, Sergei Krasnolutskii, Pavel Skutschas & Stepan Ivantsov
Tashtykia primaeva gen. et sp. nov. and Tagaria antiqua gen. et sp. nov. (Multituberculata incertae sedis) are described based on isolated teeth from the Middle Jurassic (Bathonian) Itat Formation from the Berezovsk coal mine in Krasnoyarsk Territory, Western Siberia, Russia. Tashtykia primaeva gen. et sp. nov. is characterized by a P5 with three rows of cusps (cusp formula 2B:4M:6L) and a high sectorial p4 with two triangular lobes, five serrations associated with labial and lingual...

Data from: Increased levels of perceived competition decrease juvenile kin-shoaling preferences in a cichlid fish

Timo Thünken, Saskia Hesse & Denis Meuthen
Inclusive fitness theory predicts that individuals can increase their indirect fitness by grouping with kin. However, kin-grouping also increases competition between kin, which potentially outweighs its benefits. The level of kin-competition is contingent on environmental conditions and thus highly variable. Hence, individuals should benefit from plastically adjusting kin-discrimination according to the expected level of kin competition. Here, we investigate whether perceived high competition affects juvenile kin-shoaling preferences in the cichlid Pelvicachromis taeniatus. Juveniles were given...

Data from: Bayesian adaptive Markov Chain Monte Carlo estimation of genetic parameters

Boby Mathew, Andrea M. Bauer, Petri Koistinen, Tobias C. Reetz, Jens Léon & Mikko J. Sillanpää
Accurate and fast estimation of genetic parameters that underlie quantitative traits using mixed linear models with additive and dominance effects is of great importance in both natural and breeding populations. Here we propose a new fast adaptive Markov Chain Monte Carlo (MCMC) sampling algorithm for the estimation of genetic parameters in the linear mixed model with several random effects. In the learning phase of our algorithm, we use the hybrid Gibbs sampler to learn the...

Data from: Genomic and morphological evidence converge to resolve the enigma of Strepsiptera

Oliver Niehuis, Gerrit Hartig, Sonja Grath, Hans Pohl, Jörg Lehmann, Hakim Tafer, Alexander Donath, Veiko Krauss, Carina Eisenhardt, Jana Hertel, Malte Petersen, Christoph Mayer, Karen Meusemann, Ralph S. Peters, Peter F. Stadler, Rolf G. Beutel, Erich Bornberg-Bauer, Duane D. McKenna & Bernhard Misof
The phylogeny of insects, one of the most spectacular radiations of life on earth, has received considerable attention. However, the evolutionary roots of one intriguing group of insects, the twisted-wing parasites (Strepsiptera), remain unclear despite centuries of study and debate. Strepsiptera exhibit exceptional larval developmental features, consistent with a predicted step from direct (hemimetabolous) larval development to complete metamorphosis that could have set the stage for the spectacular radiation of metamorphic (holometabolous) insects. Here we...

Modelled annual average percentage yield loss due to ozone damage for four global staple crops, 2010-2012 version 2

K. Sharps, G. Mills, D. Simpson, H. Pleijel, M. Frei, K. Burkey, L. Emberson, J. Uddling, M. Broberg, Z. Feng, K. Kobayashi & M. Agrawal
Modelled average percentage yield loss due to ground-level ozone pollution (per 1 degree by 1 degree grid cell) are presented for the crops maize (Zea mays), rice (Oryza sativa), soybean (Glycine max) and wheat (Triticum aestivum) for the period 2010-2012. Data are on a global scale, based on the distribution of production for each crop, according to the Food and Agriculture Organisation’s (FAO) Global Agro-Ecological Zones (GAEZ) crop production data for the year 2000. Modelled...

Data from: Convergent evolution of the ladder-like ventral nerve cord in Annelida

Conrad Helm, Patrick Beckers, Thomas Bartolomaeus, Stephan H. Drukewitz, Ioannis Kourtesis, Anne Weigert, Günter Purschke, Katrine Worsaae, Torsten H. Struck & Christoph Bleidorn
Background: A median, segmented, annelid nerve cord has repeatedly been compared to the arthropod and vertebrate nerve cords and became the most used textbook representation of the annelid nervous system. Recent phylogenomic analyses, however, challenge the hypothesis that a subepidermal rope-ladder-like ventral nerve cord (VNC) composed of a paired serial chain of ganglia and somata-free connectives represents either a plesiomorphic or a typical condition in annelids. Results: Using a comparative approach by combining phylogenomic analyses...

Data from: Resolution of the ordinal phylogeny of mosses using targeted exons from organellar and nuclear genomes

Yang Liu, Matthew G. Johnson, Cymon J. Cox, Rafael Medina, Nicolas Devos, Alain Vanderpoorten, Lars Hedenäs, Neil E. Bell, James R. Shevock, Blanka Aguero, Dietmar Quandt, Norman J. Wickett, A. Jonathan Shaw & Bernard Goffinet
Mosses are a highly diverse lineage of land plants, whose diversification, spanning at least 400 million years, remains phylogenetically ambiguous due to the lack of fossils, massive early extinctions, late radiations, limited morphological variation, and conflicting signal among previously used markers. Here, we present phylogenetic reconstructions based on complete organellar exomes and a comparable set of nuclear genes for this major lineage of land plants. Our analysis of 142 species representing 29 of the 30...

Data from: Structurally assisted super black in colorful peacock spiders

Dakota E. McCoy, Victoria E. McCoy, Nikolaj K. Mandsberg, Anna V. Shneidman, Joanna Aizenberg, Richard O. Prum & David Haig
Male peacock spiders (Maratus, Salticidae) compete to attract female mates using elaborate, sexually-selected displays. They evolved both brilliant color and velvety black. Here we use scanning electron microscopy (SEM), hyperspectral imaging, and finite-difference time-domain (FDTD) optical modeling to investigate the deep black surfaces of peacock spiders. We found that super black regions reflect <0.5% of light (for a 30° collection angle) in Maratus speciosus (0.44%) and Maratus karrie (0.35%) due to microscale structures. Both species...

Data from: Bony labyrinth morphometry indicates locomotor adaptations in the squirrel-related clade (Rodentia, Mammalia)

Cathrin Pfaff, Thomas Martin & Irina Ruf
The semicircular canals (SCs) of the inner ear detect angular acceleration and are located in the bony labyrinth of the petrosal bone. Based on high-resolution computed tomography, we created a size-independent database of the bony labyrinth of 50 mammalian species especially rodents of the squirrel-related clade comprising taxa with fossorial, arboreal and gliding adaptations. Our sampling also includes gliding marsupials, actively flying bats, the arboreal tree shrew and subterranean species. The morphometric anatomy of the...

Data from: Systematics and macroevolution of extant and fossil scalopine moles (Mammalia, Talpidae)

Achim H. Schwermann, Kai He, Benjamin J. Peters, Thorsten Plogschties & Gabriele Sansalone
Scalopini is one of the two fully fossorial mole tribes in the family Talpidae, with remarkable adaptations to subterranean lifestyles. Most living Scalopini species are distributed in North America while a sole species occurs in China. On the other hand, scalopine fossils are found in both Eurasia and North America from upper Oligocene strata onwards, implying a complex biogeographical history. The systematic relationships of both extant and fossil Scalopini across North America and Eurasia are...

Facultative chemosynthesis in a deep-sea anemone from hydrothermal vents in the Pescadero Basin, Gulf of California

Shana Goffredi, Cambrie Motooka, David Fike, Luciana Gusmão, Ekin Tilic, Greg Rouse & Estefanía Rodríguez
Background Numerous deep-sea invertebrates have formed symbiotic associations with internal chemosynthetic bacteria in order to harness inorganic energy sources typically unavailable to most animals. Despite success in nearly all marine habitats and their well-known associations with photosynthetic symbionts, Cnidaria remain without a clear dependence on hydrothermal vents and chemosynthetic bacterial symbionts specifically. Results A new chemosynthetic symbiosis between the sea anemone Ostiactis pearseae (Daly & Gusmão, 2007) and intracellular bacteria was discovered at ~3700 m...

Drought sensitivity of Empetrum nigrum shrub growth at the species’ southern lowland distribution range margin

Stef Weijers, Nils Hein, Julia Merkelbach & Katharina Zech
The ongoing warming of the Earth’s atmosphere is projected to cause a northward shift of species’ distributions, as they track their climatic optimum. In the rapidly warming Arctic, this has already led to an increase of shrubs in tundra ecosystems. While this northern expansion of woody biomass has been studied relatively extensively over the last decade, little research has been devoted to shrub growth responses at the southern margins of Northern Hemisphere shrubs. Here, we...

Data from: Reciprocity and the tragedies of maintaining and providing the commons

Simon Gächter, Felix Kölle & Simone Quercia
Social cooperation often requires collectively beneficial but individually costly restraint to maintain a public good, or it needs costly generosity to create one. Status quo effects predict that maintaining a public good is easier than providing a new one. Here, we show experimentally and with simulations that even under identical incentives, low levels of cooperation (the ‘tragedy of the commons’) are systematically more likely in maintenance than provision. Across three series of experiments, we find...

Data from: \"Transcriptome sequences for Campanula gentilis\" in Genomic Resources Notes accepted 1 April 2015 – 31 May 2015

Töre Demet, Federico Luebert, Guilhem Mansion, Ludo A. H. Muller, M. Vidotto, E. Boscari, L. Congiu, A. Grapputo, L. Zane, Vera Maria Fonseca Almeida-Val, Maria Manuela Coelho, Tiago Filipe Jesus & Demet Töre
In this report, we present the transcriptome of a single accession of Campanula gentilis Kovanda, obtained through the sequencing of both a normalized and a non-normalized cDNA library generated from stem and leaf tissue. The resources we provide include the raw sequence reads, the assembled contigs, the putative open reading frames, the contig/ORF annotations and the normalized as well as non-normalized expression levels.

Data from: Oldest known multituberculate stapes suggests an asymmetric bicrural pattern as ancestral for Multituberculata

Julia A. Schultz, Irina Ruf & Thomas Martin
Middle ear ossicles (malleus, incus, stapes) are known only for few multituberculate taxa, and three different stapedial morphotypes have been suggested: (1) slender, columelliform and microperforate, (2) robust and rod-like, and (3) bicrural. Reinvestigation of Upper Jurassic (Kimmeridgian) mammalian petrosals from the Guimarota coal mine in central Portugal (Western Europe) revealed an asymmetric bicrural stapes (ABS) in the paulchoffatiid Pseudobolodon oreas. The middle ear bones displaced inside the osseous vestibule were detected by a microCT...

Data from: Two-thirds of global cropland area impacted by climate oscillations

Matias Heino, Michael J. Puma, Philip J. Ward, Dieter Gerten, Vera Heck, Stefan Siebert & Matti Kummu
The El Niño Southern Oscillation (ENSO) peaked strongly during the boreal winter 2015-2016, leading to food insecurity in many parts of Africa, Asia and Latin America. Besides ENSO, the Indian Ocean Dipole (IOD) and the North Atlantic Oscillation (NAO) are known to impact crop yields worldwide. Here, we assess for the first time in a unified framework the relationship between ENSO, IOD and NAO and simulated crop productivity at the sub-country scale. Our findings reveal...

Data from: Expression of matrix Metalloproteinases-2 and aquaporin-1 in corneoscleral junction after angle-closure in rabbits

Yaqin Jiang, Canwei Zhang, Jianli Ma, Luping Wang, Jing Gao, Jiantao Ren, Wei He, Sheng Wang, Shuai Sheng & Xudong Huang
Background: To investigate the expression of Matrix Metalloproteinases 2 and aquaporin-1 in corneoscleral junction and explore the mechanism of trabecular damageafter angle-closure. Methods: Thirty New Zealand white rabbits were randomly assigned into 2 groups, theexperimental group (Group 1) including twenty five rabbits and the control group (Group 2) including 5 rabbits. The rabbits in the experimental group were used to establish angle-closure models, and the rabbits in the control group were not subjected to any...

Data from: Palaeobiogeography and evolutionary patterns of the larger foraminifer Borelis de Montfort (Borelidae)

Davide Bassi, Juan Carlos Braga, Giovanni Di Domenico, Johannes Pignatti, Sigal Abramovich, Pamela Hallock, Janine Koenen, Zoltan Kovacs, Martin R. Langer, Giulio Pavia & Yasufumi Iryu
The palaeobiogeography of the alveolinoid Borelis species reveals the evolutionary patterns leading to the two extant representatives, which occur in shallow-water tropical carbonate, coral reef-related settings. Type material and new material of fossil Borelis species, along with Recent specimens were studied to assess their taxonomic status, species circumscriptions (based on proloculus size, occurrence of Y-shaped septula, and the index of elongation), palaeobiogeography and evolutionary dynamics. The species dealt with here are known from exclusively fossil...

The evolution and biogeographic history of epiphytic thalloid liverworts

Julia Bechteler, Alfons Schaefer-Verwimp, David Glenny, Christine Cargill, Karola Maul, Nicole Schütz, Matt Von Konrat, Dietmar Quandt & Martin Nebel
Among liverworts, the epiphytic lifestyle is not only present in leafy forms but also in thalloid liverworts, which so far has received little attention in evolutionary and biogeographical studies. Metzgeria, with about 107 species worldwide, is the only genus of thalloid liverworts that comprises true epiphytes. In the present study, we provide the first comprehensive molecular phylogeny, including estimated divergence times and ancestral ranges of this genus. Analyses are based on a plastid marker dataset...

Effects of mixing legume species on germination

Heba Elsalahy, Sonoko Bellingrath-Kimura, Timo Kautz & Thomas Döring
While intercropping is known to have positive effects on crop productivity, it is unclear whether the effects of mixing species start at the very beginning of the plants’ life, i.e. during germination. We tested whether germination is affected by mixing cover crop species, using two legume species with a contrasting response to water availability and temperature, alsike clover (AC) and black medic (BM). We set up four experiments in each of which we compared a...

Data from: An integrative phylogenomic approach to elucidate the evolutionary history and divergence times of Neuropterida (Insecta: Holometabola)

Alexandros Vasilikopoulos, Bernhard Misof, Karen Meusemann, Doria Lieberz, Tomáš Flouri, Rolf G. Beutel, Oliver Niehuis, Torsten Wappler, Jes Rust, Ralph S. Peters, Alexander Donath, Lars Podsiadlowski, Christoph Mayer, Daniela Bartel, Alexander Böhm, Shanlin Liu, Paschalia Kapli, Carola Greve, James E. Jepson, Xingyue Liu, Xin Zhou, Horst Aspöck & Ulrike Aspöck
Background The latest advancements in DNA sequencing technologies have facilitated the resolution of the phylogeny of insects, yet parts of the tree of Holometabola remain unresolved. The phylogeny of Neuropterida has been extensively studied, but no strong consensus exists concerning the phylogenetic relationships within the order Neuroptera, and the timeline of diversification of thelineages of Neuropterida. Here, we assembled a novel transcriptomic dataset to address previously unresolved issues in the phylogeny of Neuropterida and to...

Elementkonzentrationsdaten Keramik aus der Siedlung Taganrog, Produktionsortbestimmung von Keramk

Hans Mommsen
Elementkonzentrationsdaten zur Herkunftsbestimmung archäologischer Keramk aus der Siedlung Taganrog. Elementkonzentationen von bis zu 30 Haupt-, Neben- und Spurenelementen von verschiedenen Zeitperioden und verschiedene Ausgrabungsstätten.

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Affiliations

  • University of Bonn
    53
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