89 Works

Phylogenomic resolution of sea spider diversification through integration of multiple data classes

Jesus Ballesteros, Emily Setton, Carlos Santibáñez-López, Claudia Arango, Georg Brenneis, Saskia Brix, Kevin Corbett, Esperanza Cano-Sánchez, Merai Dandouch, Geoffrey Dilly, Marc Eleaume, Guilherme Gainett, Cyril Gallut, Sean McAtee, Lauren McIntyre, Randy Moran, Pablo López-González, Gerhard Scholtz, Clay Williamson, Arthur Woods, Jakob Zehms, Ward Wheeler & Prashant Sharma
Despite significant advances in invertebrate phylogenomics over the past decade, the higher-level phylogeny of Pycnogonida (sea spiders) remains elusive. Due to the inaccessibility of some small-bodied lineages, few phylogenetic studies have sampled all sea spider families. Previous efforts based on a handful of genes have yielded unstable tree topologies. Here, we inferred the relationships of 89 sea spider species using targeted capture of the mitochondrial genome, 56 conserved exons, 101 ultraconserved elements, and three nuclear...

Data from: Rapid range expansion is not restricted by inbreeding in a sexually cannibalistic spider

Stefanie M. Zimmer, Henrik Krehenwinkel & Jutta M. Schneider
Few studies investigated whether rapid range expansion is associated with an individual's short-term fitness costs due to an increased risk of inbred mating at the front of expansion. In mating systems with low male mating rates both sexes share potential inbreeding costs and general mechanisms to avoid or reduce these costs are expected. The spider Argiope bruennichi expanded its range recently and we asked whether rapid settlement of new sites exposes individuals to a risk...

Data from: Producers and scroungers: feeding type composition changes with group size in a socially foraging spider

Marlis Dumke, Mariella E. Herberstein, Jutta M. Schneider & Marie E. Herberstein
In groups of socially foraging animals, feeding behaviour may change with group size in response to varying cost-benefit trade-offs. Numerous studies have described group size effects on group-average feeding behaviour, particularly emphasizing an increase in scrounging incidence for larger groups, where individuals (scroungers) feed from the food sources others (producers) discovered. However, individual variation in feeding behaviour remains unconsidered in the vast majority of these studies even though theoretical models presume individuals to specialize in...

Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L)

Annika M. Felton, Adam Felton, David Raubenheimer, Stephen J. Simpson, Sophie J. Krizsan, Per-Ola Hedwall & Caroline Stolter
The nutrient balancing hypothesis proposes that, when sufficient food is available, the primary goal of animal diet selection is to obtain a nutritionally balanced diet. This hypothesis can be tested using the Geometric Framework for nutrition (GF). The GF enables researchers to study patterns of nutrient intake (e.g. macronutrients; protein, carbohydrates, fat), interactions between the different nutrients, and how an animal resolves the potential conflict between over-eating one or more nutrients and under-eating others during...

Data from: Predator encounters have spatially extensive impacts on parental behaviour in a breeding bird community

Kadri Moks, Vallo Tilgar, Robert L. Thomson, Sara Calhim, Pauliina E. Järvistö, Wiebke Schuett, William Velmala & Toni Laaksonen
Predation risk has negative indirect effects on prey fitness, partly mediated through changes in behaviour. Evidence that individuals gather social information from other members of the population suggests that events in a community may impact the behaviour of distant individuals. However, spatially wide-ranging impacts on individual behaviour caused by a predator encounter elsewhere in a community have not been documented before. We investigated the effect of a predator encounter (hawk model presented at a focal...

Data from: Effects of warming rate, acclimation temperature and ontogeny on the critical thermal maximum of temperate marine fish larvae

Marta Moyano, Caroline Candebat, Yannick Ruhbaum, Santiago Álvarez-Fernández, Guy Claireaux, José-Luis Zambonino-Infante & Myron A. Peck
Most of the thermal tolerance studies on fish have been performed on juveniles and adults, whereas limited information is available for larvae, a stage which may have a particularly narrow range in tolerable temperatures. Moreover, previous studies on thermal limits for marine and freshwater fish larvae (53 studies reviewed here) applied a wide range of methodologies (e.g. the static or dynamic method, different exposure times), making it challenging to compare across taxa. We measured the...

Data from: Deep-sea benthic ostracodes from multiple core and epibenthic sledge samples in Icelandic waters

Moriaki Yasuhara, Maria Grimm, Simone N. Brandão, Anna Jöst, Hisayo Okahashi, Hokuto Iwatani, Alexandra Ostmann & Pedro Martínez Arbizu
Deep-sea benthic Ostracoda (Crustacea) in Icelandic waters are poorly known. Here we report deep-sea ostracode assemblages from the multiple core (MUC) and the epibenthic sledge (EBS) samples collected from Icelandic waters by the first cruise of the IceAGE (Icelandic Marine Animals: Genetics and Ecology) project. Samples from shelf-edge and lower-bathyal working areas are examined. The results show (1) distinct MUC and EBS faunas due to the large difference in mesh size of MUC and EBS;...

Data from: An integrative phylogenomic approach illuminates the evolutionary history of cockroaches and termites (Blattodea)

Dominic A. Evangelista, Benjamin Wipfler, Olivier Béthoux, Alexander Donath, Mari Fujita, Manpreet K. Kohli, Frédéric Legendre, Shanlin Liu, Ryuichiro Machida, Berhard Misof, Ralph Peters, Lars Podsiadlowski, Jes Rust, Kai Schuette, Ward Tollenaar, Jessica L. Ware, Torsten Wappler, Xin Zhou, Karen Meusemann & Sabrina Simon
READMEREADME of Supplementary Archives and included files of Evangelista et al. 2019Evangelista_et_al_README_DRYAD.pdfSupplementary Archive 1Files included in Supplementary Archive 1, see Evangelista_et_al_README_DRYAD.pdfSupplementary_Archive_1.zipSupplementary Archive 2Files included in Supplementary Archive 2, see Evangelista_et_al_README_DRYAD.pdfSupplementary_Archive_2.zip

Data from: Oligonucleotide primers for targeted amplification of single-copy nuclear genes in apocritan Hymenoptera

Gerrit Hartig, Ralph S. Peters, Janus Borner, Claudia Etzbauer, Bernhard Misof & Oliver Niehuis
BACKGROUND: Published nucleotide sequence data from the mega-diverse insect order Hymenoptera (sawflies, bees, wasps, and ants) are taxonomically scattered and still inadequate for reconstructing a well-supported phylogenetic tree for the order. The analysis of comprehensive multiple gene data sets obtained via targeted PCR could provide a cost-effective solution to this problem. However, oligonucleotide primers for PCR amplification of nuclear genes across a wide range of hymenopteran species are still scarce. FINDINGS: Here we present a...

Data from: Idiosyncratic species effects confound size-based predictions of responses to climate change

Marion Twomey, Eva Brodte, Ute Jacob, Ulrich Brose, Tasman P. Crowe & Mark C. Emmerson
Understanding and predicting the consequences of warming for complex ecosystems and indeed individual species remains a major ecological challenge. Here, we investigated the effect of increased seawater temperatures on the metabolic and consumption rates of five distinct marine species. The experimental species reflected different trophic positions within a typical benthic East Atlantic food web, and included a herbivorous gastropod, a scavenging decapod, a predatory echinoderm, a decapod and a benthic-feeding fish. We examined the metabolism–body...

Biased predation could promote convergence yet maintain diversity within Müllerian mimicry rings of Oreina leaf beetles

David Kikuchi, Samuel Waldron, Janne Valkonen, Susanne Dobler & Johanna Mappes
Müllerian mimicry is a classic example of adaptation, yet Müller’s original theory does not account for the persistence of diversity in mimicry rings, which has been a thorn in the side of one of the oldest models in evolutionary biology. Here, we aimed to assess how well classical Müllerian mimicry can account for the color polymorphism found in chemically defended Oreina leaf beetles, specifically testing its predictions for predator behavior. We also evaluated whether thermoregulation...

Assessing the diachronic change of a word-formation pattern

Stefan Hartmann &
This paper investigates the diachronic change of ung-nominalization in German using both simple frequency measures and advanced models of morphological productivity.

LT-Brazil: A database of leaf traits across biomes and vegetation types in Brazil

Eduardo Mariano, Taciana Gomes, Silvia Lins, Adibe Abdalla-Filho, Amin Soltangheisi, Maria Araújo, Rodrigo Almeida, Fernanda Augusto, Luiza Canisares, Siglea Chaves, Cristiane Costa, Thaís Diniz-Reis, Leonardo Galera, Melissa Martinez, Maristela Morais, Elen Perez, Lucas Reis, Carla Simon, Silvia Mardegan, Tomas Domingues, Raquel Miatto, Rafael Oliveira, Carla Reis, Gabriela Nardoto, Jens Kattge … & Luiz Martinelli
Motivation: Leaf traits represent an important component of plant functional strategies, and those related to carbon fixation and nutrient acquisition form the leaf economics spectrum. However, observations of functional leaf traits are underrepresented in tropical regions in comparison with those in temperate areas. Brazil, a country with continental scale and vast biodiversity is a timely example, where many biomes are impacted by human activities and climate change. However, leaf traits relevant to understand vegetation responses...

Data from: Environmental transmission of a personality trait: foster parent exploration behaviour predicts offspring exploration behaviour in zebra finches

Wiebke Schuett, Sasha R. X. Dall, Alastair J. Wilson & Nick J. Royle
Consistent behavioural differences among individuals are common in many species and can have important effects on offspring fitness. To understand such ‘personality’ variation, it is important to determine the mode of inheritance, but this has been quantified for only a few species. Here, we report results from a breeding experiment in captive zebra finches, Taeniopygia guttata, in which we cross-fostered offspring to disentangle the importance of genetic and non-genetic transmission of behaviour. Genetic and foster-parents’...

Data from: The polyphyly of Plasmodium: comprehensive phylogenetic analyses of the malaria parasites (order Haemosporida) reveal widespread taxonomic conflict

Spencer C. Galen, Janus Borner, Ellen S. Martinsen, Juliane Schaer, Christopher C. Austin, Christopher J. West & Susan L. Perkins
The evolutionary relationships among the apicomplexan blood pathogens known as the malaria parasites (order Haemosporida), some of which infect nearly 200 million humans each year, has remained a vexing phylogenetic problem due to limitations in taxon sampling, character sampling, and the extreme nucleotide base composition biases that are characteristic of this clade. Previous phylogenetic work on the malaria parasites has often lacked sufficient representation of the broad taxonomic diversity within the Haemosporida or the multi-locus...

Data from: Socially cued developmental plasticity in web-building spiders

Rainer Neumann & Jutta M. Schneider
Background: Socially cued anticipatory plasticity (SCAP) has been proposed as a widespread mechanism of adaptive life-history shifts in semelparous species with extreme male mating investment. Such mating systems evolved several times independently in spiders and male reproductive success should critically depend on timely maturation and rapid location of a receptive and, ideally, virgin female. We experimentally investigated socially cued anticipatory plasticity in two sympatric, closely related Nephila species that share many components of their mating...

Data from: Phylogenomics and the evolution of hemipteroid insects

Kevin P. Johnson, Christopher H. Dietrich, Frank Friedrich, Rolf G. Beutel, Benjamin Wipfler, Ralph S. Peters, Julie M. Allen, Malte Petersen, Alexander Donath, Kimberly K. O. Walden, Alexey M. Kozlov, Lars Podsiadlowski, Christoph Mayer, Karen Meusemann, Alexandros Vasilikopoulos, Robert M. Waterhouse, Stephen L. Cameron, Christiane Weirauch, Daniel R. Swanson, Diana M. Percy, Nate B. Hardy, Irene Terry, Shanlin Liu, Xin Zhou, Bernhard Misof … & Kazunori Yoshizawa
Hemipteroid insects (Paraneoptera), with over 10% of all known insect diversity, are a major component of terrestrial and aquatic ecosystems. Previous phylogenetic analyses have not consistently resolved the relationships among major hemipteroid lineages. We provide maximum likelihood-based phylogenomic analyses of a taxonomically comprehensive dataset comprising sequences of 2,395 single-copy, protein-coding genes for 193 samples of hemipteroid insects and outgroups. These analyses yield a well-supported phylogeny for hemipteroid insects. Monophyly of each of the three hemipteroid...

Data from: No signal of deleterious mutation accumulation in conserved gene sequences of extant asexual hexapods

Alexander Brandt, Jens Bast, Stefan Scheu, Karen Meusemann, Alexander Donath, Kai Schütte, Ryuichiro Machida & Ken Kraaijeveld
Loss of sex and recombination is generally assumed to impede the effectiveness of purifying selection and to result in the accumulation of slightly deleterious mutations. Empirical evidence for this has come from several studies investigating mutational load in a small number of individual genes. However, recent whole transcriptome based studies have yielded inconsistent results, hence questioning the validity of the assumption of mutational meltdown in asexual populations. Here, we study the effectiveness of purifying selection...

Geometric morphometric wing analysis represents a robust tool to identify female mosquitoes (Diptera: Culicidae) in Germany

Felix Gregor Sauer, Linda Jaworski, Laura Erdbeer, Anna Heitmann, Jonas Schmidt-Chanasit, Ellen Kiel & Renke Lühken
Accurate species identification is the prerequisite to assess the relevance of mosquito specimens, but is often hindered by missing or damaged morphological features. The present study analyses the applicability of wing geometric morphometrics as a low-cost and practical alternative to identify native mosquitoes in Germany. Wing pictures were collected for 502 female mosquitoes of five genera and 19 species from 80 sampling sites. The reliable species identification based on interspecific wing geometry of 18 landmarks...

Insights into the genetic basis of predator-induced response in Daphnia galeata

Verena Tams, Jana Helene Nickel, Anne Ehring & Mathilde Cordellier
Phenotypic plastic responses allow organisms to rapidly adjust when facing environmental challenges - these responses comprise morphological, behavioral but also life-history changes. Alteration of life-history traits when exposed to predation risk have been reported often in the ecological and genomic model organism Daphnia. However, the molecular basis of this response is not well understood, especially in the context of fish predation. Here, we characterized the transcriptional profiles of two Daphnia galeata clonal lines with opposed...

Telychian Bryozoa, Matrix (Bryozoans from the lower Silurian (Telychian) Hanchiatien Formation from southern Chongqing, South China)

Andrej Ernst
Eight bryozoan species are described from the Hanchiatien Formation (lower Silurian, Telychian) of southern Chongqing, South China. Four species are new: the trepostomes Asperopora sinensis n. sp., Trematopora jiebeiensis n. sp., and Trematopora tenuis n. sp., and the fenestrate Moorephylloporina parvula n. sp. One species, a cystoporate Hennigopora sp. is described in open nomenclature. Moorephylloporina parvula n. sp. is eurytopic, occurring in all types of facies within the bioherms. Erect Moorephylloporina, Trematopora and Leioclema form...

Data and code from: Growth strategies of a model picoplankter depend on social milieu and pCO2

C-Elisa Schaum & Sinead Collins
Aquatic microbial primary producers exist in genetically diverse populations, but are often studied as single lineages, so that interpreting single lineage studies relies critically on understanding how microbial growth differs with social milieu. The properties of lineages grown alone often fail to predict the growth of these same lineages in the presence of conspecifics, and this discrepancy points towards an opportunity to improve our understanding of how multilineage assemblages of a species are shaped. We...

UHH Data Notes

Stefan Thiemann
UHH Data Notes was designed as a way for researchers from the Universität Hamburg to be able to publish short, open access articles which describe their repository stored data. The articles contain a brief description of the data, without results or conclusions mentioned, as well as information as to where the associated data is stored. Not only is this a way for researches to display the hard work that went into collecting and working with...

Vowel Harmony Viewed as Error-Correcting Code

Yvo Meeres & Tommi A. Pirinen

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  • University of Hamburg
  • Universität Hamburg
  • Zoological Research Museum Alexander Koenig
  • University of Göttingen
  • Technical University of Denmark
  • Princeton University
  • Heidelberg Institute for Theoretical Studies
  • University Medical Center Hamburg-Eppendorf
  • University of Tsukuba
  • University of Zurich