17 Works

Data from: Measurement artefacts lead to false positives in the study of birdsong in noise

Henrik Brumm, Sue Anne Zollinger, Petri T. Niemelä & Philipp Sprau
1: Numerous studies over the past decade have reported correlations between elevated levels of anthropogenic noise and a rise in the minimum frequency of acoustic signals of animals living in noisy habitats. This pattern appears to be occurring globally, and higher pitched signals have been hypothesized to be adaptive changes that reduce masking by low-frequency traffic noise. However, the sound analysis methods most often used in these studies are prone to measurement errors that can...

Data from: The palaeogenetics of cat dispersal in the ancient world

Claudio Ottoni, Wim Van Neer, Bea De Cupere, Julien Daligault, Silvia Guimaraes, Joris Peters, Nikolai Spassov, Mary E. Prendergast, Nicole Boivin, Arturo Morales-Muñiz, Adrian Bălăşescu, Cornelia Becker, Norbert Benecke, Adina Boroneant, Hijlke Buitenhuis, Jwana Chahoud, Alison Crowther, Laura Llorente, Nina Manaseryan, Hervé Monchot, Vedat Onart, Marta Osypińska, Olivier Putelat, Eréndira M. Quintana Morales, Jacqueline Studer … & Eva-Maria Geigl
The cat has long been important to human societies as a pest-control agent, object of symbolic value and companion animal, but little is known about its domestication process and early anthropogenic dispersal. Here we show, using ancient DNA analysis of geographically and temporally widespread archaeological cat remains, that both the Near Eastern and Egyptian populations of Felis silvestris lybica contributed to the gene pool of the domestic cat at different historical times. While the cat’s...

Data from: Male spiders reduce pre- and postmating sexual investment in response to sperm competition risk

Cristina Tuni, Sabrina Weber, Trine Bilde & Gabriele Uhl
The interplay between pre- and post-mating responses to intra-sexual competition remains enigmatic. Sperm competition models often assume a trade-off between pre- and post-mating traits that enhance mate acquisition and fertilization success, respectively. However, when males court females through food donations (i.e. nuptial gifts), pre- and post-mating responses may be aligned, as nuptial gifts have the dual function of facilitating both mate acquisition and sperm transfer. In the spider Pisaura mirabilis nuptial gifts consist of silk-wrapped...

Data from: Paternal-effects in a terrestrial ectotherm are temperature dependent but no evidence for adaptive effects

Clelia Gasparini, ChuChu Lu, Niels Dingemanse & Cristina Tuni
1. Global rising of average temperatures and increase in extreme climatic events may largely impact animal survival and reproduction. Yet, how variation in temperature may affect male fertility, in particular ejaculate traits, and whether this can in turn affect offspring fitness, is seldom addressed. Paternal effects may be of key importance as they could impact the rate and direction of evolutionary change in response to climate change. 2. We tested the effects of temperature experienced...

Gut Microbiota from Multiple Sclerosis patients triggers spontaneous autoimmune encephalomyelitis in mice --shotgun data--

Hartmut Wekerle, Kerstin Berer, Lisa Ann Gerdes, Egle Cekanaviciute, Sherman Jia, Liang Xiao, Zhongkui Xia, Chuan Liu, Luisa Klotz, Uta Stauffer, Sergio Baranzini, Tania Kümpfel, Reinhard Hohlfeld & Gurumoorthy Krishnamoorthy
There is emerging evidence that the commensal microbiota has a role in the pathogenesis of multiple sclerosis (MS), a putative autoimmune disease of the central nervous system. Here, we compared the gut microbial composition of 34 monozygotic twin pairs discordant for MS. While there were no major differences in the overall microbial profiles, we found a significant increase in some taxa such as Akkermansia in untreated MS twins. Furthermore, most notably, when transplanted to a...

Data from: Protein deprivation decreases male survival and the intensity of sexual antagonism in southern field crickets Gryllus bimaculatus

Chang S. Han & Niels J. Dingemanse
Recent theory predicts that the magnitude of sexual antagonism should depend on how well populations are adapted to their environment. We tested this idea experimentally by comparing intersexual genetic correlations for adult survival in pedigreed populations of southern field crickets (Gryllus bimaculatus) raised on naturally balanced (free-choice) vs. imbalanced (protein-deprived) diets. We tested for (1) sex differences in nutritional intake and preference, (2) sex-specific effects of protein deprivation on survival and (3) diet dependence of...

Data from: Metabolic rate associates with, but does not generate covariation between, behaviours in western stutter-trilling crickets, Gryllus integer

Indrikis A. Krams, Petri T. Niemelä, Giedrius Trakimas, Ronalds Krams, Gordon M. Burghardt, Tatjana Krama, Aare Kuusik, Marika Mand, Markus J. Rantala, Raivo Mand, Jukka Kekäläinen, Ilkka Sirkka, Severi Luoto, Raine Kortet & Indrikis Krams
The causes and consequences of among-individual variation and covariation in behaviours are of substantial interest to behavioural ecology, but the proximate mechanisms underpinning this (co)variation are still unclear. Previous research suggests metabolic rate as a potential proximate mechanism to explain behavioural covariation. We measured the resting metabolic rate (RMR), boldness and exploration in western stutter-trilling crickets, Gryllus integer, selected differentially for short and fast development over two generations. After applying mixed-effects models to reveal the...

Data from: Chromosome numbers, Sudanese wild forms, and classification of the watermelon genus Citrullus, with 50 names allocated to seven biological species

Susanne S. Renner, Aretuza Sousa & Guillaume Chomicki
Watermelons are among the most important vegetable crops worldwide, but targeted breeding is hindered by problems with Citrullus taxonomy. Here we clarify nomenclature and species relationships in Citrullus, its chromosome numbers, and the likely geographic region of watermelon domestication. We correct an erroneous chromosome count in recent literature, provide a count for an understudied species, and data on chromosome numbers for the entire genus. We also use a nuclear/plastid locus phylogeny to summarize data on...

Data from: Individual versus pseudo-repeatability in behaviour: lessons from translocation experiments in a wild insect

Petri T. Niemelä & Niels J. Dingemanse
1. Repeatability represents a key parameter in ecological and evolutionary research. Repeatability is underpinned by developmental plasticity and genetic variation but may become biased upwards by repeatable differences in environments to which individuals respond plastically. The extent of upward bias caused by the latter mechanism (causing “pseudo-repeatability”) is important yet rarely investigated in ecological research. 2. We repeatedly assayed a key behaviour (flight initiation distance) affecting longevity in a wild cricket population (Gryllus campestris). We...

Data from: The largest early-diverging angiosperm family is mostly pollinated by ovipositing insects and so are most surviving lineages of early angiosperms

Shixiao Luo, Lian-Jie Zhang, Shuai Yuan, Zhong-Hui Ma, Dian-Xiang Zhang, Susanne S. Renner & Shi-Xiao Luo
Insect pollination in basal angiosperms is assumed to mostly involve ‘generalized’ insects looking for food, but direct observation of ANITA grade (283 species) pollinators are sparse. We present new data for numerous Schisandraceae, the largest ANITA family, from field work, nocturnal filming, electron microscopy, barcoding, and molecular clocks to infer pollinator/plant interactions over multiple years at sites throughout China to test the extent of pollinator specificity. Schisandraceae are pollinated by nocturnal gall midges that lay...

Data from: Do microplastic particles affect Daphnia magna at the morphological, life history and molecular level?

Hannes Imhof, Jakub Rusek, Michaela Thiel, Justyna Wolinska, Christian Laforsch & Hannes K. Imhof
Microplastic particles are ubiquitous not only in marine but also in freshwater ecosystems. However, the impacts of microplastics, consisting of a large variety of synthetic polymers, on freshwater organisms remains poorly understood. We examined the effects of two polymer mixtures on the morphology, life history and on the molecular level of the waterflea Daphnia magna (three different clones). Microplastic particles of ~40 µm were supplied at a low concentration (1% of the food particles) leading...

Data from: Behavioural mediators of genetic life-history trade-offs: a test of the pace-of-life syndrome hypothesis in field crickets

Francesca Santostefano, Alastair J. Wilson, Petri T. Niemela & Niels J. Dingemanse
The pace-of-life syndrome (POLS) hypothesis predicts associations between life-history and ‘risky’ behaviours. Individuals with ‘fast’ lifestyles should develop faster, reproduce earlier, exhibit more risk-prone behaviour, and die sooner than those with ‘slow’ lifestyles. While support for POLS has been equivocal to date, studies have relied on individual-level (phenotypic) patterns in which genetic trade-offs may be masked by environmental effects on phenotypes. We estimated genetic correlations between life-history (development, lifespan, size) and risky behaviours (exploration, aggression)...

Gut Microbiota from Multiple Sclerosis patients triggers spontaneous autoimmune encephalomyelitis in mice --16S data--

Hartmut Wekerle, Kerstin Berer, Lisa Ann Gerdes, Egle Cekanaviciute, Sherman Jia, Liang Xiao, Zhongkui Xia, Chuan Liu, Luisa Klotz, Uta Stauffer, Sergio Baranzini, Tania Kümpfel, Reinhard Hohlfeld & Gurumoorthy Krishnamoorthy
The commensal microbiota has emerged as a key factor influencing human health and has been associated with several diseases, including those of the central nervous system (CNS). To investigate the role of the microbiome in multiple sclerosis (MS), a complex autoimmune disorder shaped by a multitude of genetic and environmental factors, we recruited a cohort of 34 monozygotic twin pairs discordant for MS, and compared their gut microbial composition by 16S ribosomal RNA sequencing of...

Data from: Spring predictability explains different leaf-out strategies in the woody floras of North America, Europe and East Asia

Constantin M. Zohner, Blas M. Benito, Jason D. Fridley, Jens-Christian Svenning & Susanne S. Renner
Intuitively, interannual spring temperature variability (STV) should influence the leaf-out strategies of temperate zone woody species, with high winter chilling requirements in species from regions where spring warming varies greatly among years. We tested this hypothesis using experiments in 215 species and leaf-out monitoring in 1585 species from East Asia (EA), Europe (EU) and North America (NA). The results reveal that species from regions with high STV indeed have higher winter chilling requirements, and, when...

Data from: X-linkage is not a general inhibitor of tissue-specific gene expression in Drosophila melanogaster

Eliza Argyridou, Ann Kathrin Huylmans, Annabella Königer & John Parsch
As a consequence of its difference in copy number between males and females, the X chromosome is subject to unique evolutionary forces and gene regulatory mechanisms. Previous studies of Drosophila melanogaster have shown that the expression of X-linked, testis-specific reporter genes is suppressed in the male germline. However, it is not known whether this phenomenon is restricted to testis-expressed genes or if it is a more general property of genes with tissue-specific expression, which are...

Data from: Ancient and modern DNA reveal dynamics of domestication and cross-continental dispersal of the dromedary

Faisal Almathen, Pauline Charruau, Elmira Mohandesan, Joram M. Mwacharo, Pablo Orozco-TerWengel, Daniel Pitt, Abdussamad M. Abdussamad, Margarethe Uerpmann, Hans-Peter Uerpmann, Bea De Cupere, Peter Magee, Majed A. Alnaqeeb, Bashir Salim, Abdul Raziq, Tadelle Dessie, Omer M. Abdelhadi, Mohammad H. Banabazi, Marzook Al-Eknah, Chris Walzer, Bernard Faye, Michael Hofreiter, Joris Peters, Olivier Hanotte & Pamela A. Burger
Dromedaries have been fundamental to the development of human societies in arid landscapes and for long-distance trade across hostile hot terrains for 3,000 y. Today they continue to be an important livestock resource in marginal agro-ecological zones. However, the history of dromedary domestication and the influence of ancient trading networks on their genetic structure have remained elusive. We combined ancient DNA sequences of wild and early-domesticated dromedary samples from arid regions with nuclear microsatellite and...

Data from: Platelet GPIIb supports initial pulmonary retention but inhibits subsequent proliferation of melanoma cells during hematogenic metastasis

Christian Schulz, Katrin Echtler, Ildiko Konrad, Michael Lorenz, Simon Schneider, Sebastian Hofmaier, Florian Plenagl, Konstantin Stark, Thomas Czermak, Anca Tirniceriu, Martin Eichhorn, Axel Walch, Georg Enders & Steffen Massberg
Platelets modulate the process of cancer metastasis. However, current knowledge on the direct interaction of platelets and tumor cells is mostly based on findings obtained in vitro. We addressed the role of the platelet fibrinogen receptor glycoprotein IIb (integrin αIIb) for experimental melanoma metastasis in vivo. Highly metastatic B16-D5 melanoma cells were injected intravenously into GPIIb-deficient (GPIIb-/-) or wildtype (WT) mice. Acute accumulation of tumor cells in the pulmonary vasculature was assessed in real-time by...

Registration Year

  • 2017
    17

Resource Types

  • Dataset
    17

Affiliations

  • Ludwig Maximilian University of Munich
    17
  • Max Planck Institute for Ornithology
    2
  • University Hospital Münster
    2
  • Aarhus University
    2
  • Royal Belgian Institute of Natural Sciences
    2
  • Max Planck Institute of Neurobiology
    2
  • University of California, San Francisco
    2
  • Beijing Genomics Institute
    2
  • Freie Universität Berlin
    2
  • University of Western Australia
    2