34 Works

Data from: Auditory functional magnetic resonance imaging in dogs – normalization and group analysis and the processing of pitch in the canine auditory pathways

Jan-Peter Bach, Matthias Lüpke, Peter Dziallas, Patrick Wefstaedt, Stefan Uppenkamp, Hermann Seifert & Ingo Nolte
Background: Functional magnetic resonance imaging (fMRI) is an advanced and frequently used technique for studying brain functions in humans and increasingly so in animals. A key element of analyzing fMRI data is group analysis, for which valid spatial normalization is a prerequisite. In the current study we applied normalization and group analysis to a dataset from an auditory functional MRI experiment in anesthetized beagles. The stimulation paradigm used in the experiment was composed of simple...

Data from: Mating status correlates with dorsal brightness in some but not all poison frog populations

Corinna E. Dreher, Ariel Rodríguez, Molly E. Cummings & Heike Pröhl
Sexual signals are important for intraspecific communication and mate selection, but their evolution may be driven by both natural and sexual selection, and stochastic processes. Strawberry poison frogs (Oophaga pumilio) show strong color divergence among populations, but coloration also varies among individuals of the same population. The importance of coloration for female mate choice has been studied intensely, and sexual selection seems to affect color divergence in strawberry poison frogs. However, the effect of coloration...

Data from: Exposure and susceptibility drive reinfection with gastrointestinal parasites in a social primate

Nadine Müller-Klein, Michael Heistermann, Christina Strube, Mathias Franz, Oliver Schülke & Julia Ostner
1. Increased risk of infectious disease transmission has been proposed as one major cost of group living. While factors corresponding to transmission via exposure to infectious stages and susceptibility to infections upon contact are relatively well understood, both aspects are rarely investigated simultaneously. 2. Here, we assessed the influence of exposure and susceptibility measures on strongyle nematode reinfection after experimental deworming of Barbary macaques (Macaca sylvanus) (n=57). We investigated impacts of behaviour (social bonds, grooming...

Metabarcoding to decipher the fish diet of Eurasian otters and seals

Joy Ometere Boyi, Eileen Hesse, Simon Rohner, Josefin Säurich, Ursula Siebert, Anita Gilles & Kristina Lehnert
Long-lived top predators shape biodiversity structure in their ecosystems and predator-prey interactions are critical in decoding how communities function. Studies on the foraging ecology of seals and Eurasian otters in Western Europe are outdated and most studies solely performed traditional hard part analysis. Molecular metabarcoding can be used as an innovative non-invasive diet analysis tool, which has proven efficient and complementary to hard part analysis, however lacking application in the wider North Sea area. In...

Data from: Major histocompatibility complex-linked social signalling affects female fertility

Dominik Burger, Selina Thomas, Helen Aepli, Margaux Dreyer, Guillaume Fabre, Eliane Marti, Harald Sieme, M. R. Robinson & Claus Wedekind
Genes of the major histocompatibility complex (MHC) have been shown to influence social signalling and mate preferences in many species, including humans. First observations suggest that MHC signalling may also affect female fertility. To test this hypothesis, we exposed 191 female horses (Equus caballus) to either a MHC-similar or a MHC-dissimilar stimulus male around the time of ovulation and conception. A within-subject experimental design controlled for non-MHC linked male characteristics, and instrumental insemination with semen...

Data from: Physiological and social consequences of gastrointestinal nematode infection in a nonhuman primate

Nadine Müller-Klein, Michael Heistermann, Christina Strube, Zina M. Morbach, Navina Lilie, Mathias Franz, Oliver Schülke & Julia Ostner
Gastrointestinal nematodes are intensely studied models for host-pathogen interactions in wildlife, yet consequences of infections are not fully understood. Among the potential costs of nematode infection are physiological changes caused by immune system activation, reduction or reallocation of available energy, as well as potential social consequences in terms of decreased social activity or avoidance of infected individuals. We used experimental anthelmintic treatment to investigate effects of strongyle nematode infection in Barbary macaques (Macaca sylvanus), comparing...

Climate and land-use effects on dung beetle assemblages

Jana Englmeier, Christian Von Hoermann, Daniel Rieker, Eric M. Benbow, Caryl Benjamin, Ute Fricke, Cristina Ganuza, Maria Haensel, Tomáš Lackner, Oliver Mitesser, Sarah Redlich, Rebekka Riebl, Sandra Rojas-Botero, Thomas Rummler, Jörg-Alfred Salamon, David Sommer, Ingolf Steffan-Dewenter, Cynthia Tobisch, Johannes Uhler, Lars Uphus, Jie Zhang & Jörg Müller
This dataset contains data from a field study conducted in 2019 and described in the paper "Dung beetle diversity is mainly affected by land use, while community specialization is driven by climate" by Englmeier et al. To test the effects of land use and climate on α-diversity, local community specialization (H2'), and γ-diversity of dung beetles, we used pitfall traps baited with four different dung types at 114 study sites, distributed over a spatial extent...

Tissue S100/calgranulin expression and blood neutrophil-to-lymphocyte ratio (NLR) in dogs with lower urinary tract urothelial carcinoma

Jana Weinekötter, Corinne Gurtner, Martina Protschka, Wolf von Bomhard, Denny Böttcher, Annika Schlinke, Gottfried Alber, Sarah Rösch, Joerg M. Steiner, Johannes Seeger, Gerhard U. Oechtering & Romy M. Heilmann
Abstract Background Urothelial carcinoma (UC) is the most common neoplasm of the canine lower urinary tract, affecting approximately 2% of dogs. Elderly female patients of certain breeds are predisposed, and clinical signs of UC can easily be confused with urinary tract infection or urolithiasis. Diagnosis and treatment are challenging given the lack of disease-specific markers and treatments. The S100A8/A9 complex and S100A12 protein are Ca2+-binding proteins expressed by cells of the innate immune system and...

Data from: Not everything is black and white: color and behavioral variation reveal a continuum between cryptic and aposematic strategies in a polymorphic poison frog

Beatriz Willink, Esteban Brenes-Mora, Federico Bolaños & Heike Pröhl
Aposematism and crypsis are often viewed as two extremes of a continuum of visual conspicuousness to predators. Theory predicts that behavioral and coloration conspicuousness should vary in tandem along the conspicuousness spectrum for antipredator strategies to be effective. Here we used visual modeling of contrast and behavioral observations to examine the conspicuousness of four populations of the granular poison frog, Oophaga granulifera, which exhibits almost continuous variation in dorsal color. The patterns of geographic variation...

Data from: Postglacial climate changes and rise of three ecotypes of harbor porpoises, Phocoena phocoena, in western Palearctic waters

Michaël C. Fontaine, Kathleen Roland, Isabelle Calves, Frederic Austerlitz, Friso P. Palstra, Krystal A. Tolley, Sean Ryan, Marisa Ferreira, Thierry Jauniaux, Angela Llavona, Bayram Öztürk, Ayaka A. Öztürk, Vincent Ridoux, Emer Rogan, Ursula Siebert, Marina Sequeira, Gísli A. Vikingsson, Asunción Borrell, Johan R. Michaux & Alex Aguilar
Despite no obvious barriers to gene flow in the marine realm, environmental variation and ecological specializations can lead to genetic differentiation in highly mobile predators. Here, we investigated the genetic structure of the harbor porpoise over the entire species distribution range in western Palearctic waters. Combined analyses of ten microsatellite loci and a 5,085 bases-pairs portion of the mitochondrial genome revealed the existence of three ecotypes, equally divergent at the mitochondrial genome, distributed in the...

Data from: Morphological characters can strongly influence early animal relationships inferred from phylogenomic data sets

Johannes S. Neumann, Rob Desalle, Apurva Narechania, Bernd Schierwater & Michael Tessler
There are considerable phylogenetic incongruencies between morphological and phylogenomic data for the deep evolution of animals. This has contributed to a heated debate over the earliest-branching lineage of the animal kingdom: The sister to all other Metazoa (SOM). Here we use published phylogenomic datasets (∼45,000-400,000 characters in size with ∼15-100 taxa) that focus on early metazoan phylogeny to evaluate the impact of incorporating morphological datasets (∼15-275 characters). We additionally use small exemplar datasets to quantify...

Additional file 2 of Modulation of the porcine intestinal microbiota in the course of Ascaris suum infection

Andrea Springer, Liane Wagner, Sarina Koehler, Stefanie Klinger, Gerhard Breves, Dagmar A. Brüggemann & Christina Strube
Additional file 2. Hub nodes identified in faecal microbial association networks from Ascaris suum single-infected and trickle-infected pigs and a non-infected control group based on eigenvector centrality. Hubs shared between experimental groups on the same day are highlighted in yellow, while hubs occurring in subsequent networks of the same group are highlighted in green.

Additional file 1 of Tissue S100/calgranulin expression and blood neutrophil-to-lymphocyte ratio (NLR) in dogs with lower urinary tract urothelial carcinoma

Jana Weinekötter, Corinne Gurtner, Martina Protschka, Wolf von Bomhard, Denny Böttcher, Annika Schlinke, Gottfried Alber, Sarah Rösch, Joerg M. Steiner, Johannes Seeger, Gerhard U. Oechtering & Romy M. Heilmann
Additional file 1: Supplementary Table 1. Overview of the patient demographic, treatment, outcome, and study participation information for the dogs in-cluded in the study (n=55).

Tissue S100/calgranulin expression and blood neutrophil-to-lymphocyte ratio (NLR) in dogs with lower urinary tract urothelial carcinoma

Jana Weinekötter, Corinne Gurtner, Martina Protschka, Wolf von Bomhard, Denny Böttcher, Annika Schlinke, Gottfried Alber, Sarah Rösch, Joerg M. Steiner, Johannes Seeger, Gerhard U. Oechtering & Romy M. Heilmann
Abstract Background Urothelial carcinoma (UC) is the most common neoplasm of the canine lower urinary tract, affecting approximately 2% of dogs. Elderly female patients of certain breeds are predisposed, and clinical signs of UC can easily be confused with urinary tract infection or urolithiasis. Diagnosis and treatment are challenging given the lack of disease-specific markers and treatments. The S100A8/A9 complex and S100A12 protein are Ca2+-binding proteins expressed by cells of the innate immune system and...

Data from: A genomewide catalogue of single nucleotide polymorphisms in white-beaked and Atlantic white-sided dolphins

Ruth Fernández, Mikkel Schubert, A. M. Vargas-Velázquez, Andrew Brownlow, Gisli A. Víkingsson, Ursula Siebert, Lasse Fast Jensen, Nils Øien, Dave Wall, Emer Rogan, Bjarni Mikkelsen, Willy Dabin, Gilles Guillot, Ludovic Orlando, A. H. Alfarhan, S. A. Alquraishi & K. A. S. Al-Rasheid
The field of population genetics is rapidly moving into population genomics as the quantity of data generated by high-throughput sequencing platforms increases. In this study, we used restriction-site-associated DNA sequencing (RADSeq) to recover genomewide genotypes from 70 white-beaked (Lagenorhynchus albirostris) and 43 Atlantic white-sided dolphins (L. acutus) gathered throughout their north-east Atlantic distribution range. Both species are at a high risk of being negatively affected by climate change. Here, we provide a resource of 38...

Data from: The interplay between multiple predators and prey color divergence

Beatriz Willink, Adrián García-Rodríguez, Federico Bolaños & Heike Pröhl
Evolutionary divergence in the coloration of toxic prey is expected when geographic variation in predator composition and behavior favours shifts in prey conspicuousness. A fundamental prediction of predator-driven colour divergence is that the local coloration should experience lower predation risk than novel prey phenotypes. The dorsal coloration of the granular poison frog varies gradually from populations of conspicuous bright red frogs to populations of dull green and relatively cryptic frogs. We conducted experiments with clay...

Data from: Moving in the Anthropocene: global reductions in terrestrial mammalian movements

Marlee A. Tucker, Katrin Böhning-Gaese, William F. Fagan, John M. Fryxell, Bram Van Moorter, Susan C. Alberts, Abdullahi H. Ali, Andrew M. Allen, Nina Attias, Tal Avgar, Hattie Bartlam-Brooks, Buuveibaatar Bayarbaatar, Jerrold L. Belant, Alessandra Bertassoni, Dean Beyer, Laura Bidner, Floris M. Van Beest, Stephen Blake, Niels Blaum, Chloe Bracis, Danielle Brown, P. J. Nico De Bruyn, Francesca Cagnacci, Justin M. Calabrese, Constança Camilo-Alves … & Thomas Mueller
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral...

Data from: Stallion semen quality depends on MHC matching to teaser mare

Elise Jeannerat, Eliane Marti, Catherine Berney, Fredi Janett, Heinrich Bollwein, Harald Sieme, Dominik Burger & Claus Wedekind
The major histocompatibility complex (MHC) has repeatedly been found to influence mate choice of vertebrates, with MHC-dissimilar mates typically being preferred over MHC-similar mates. We used horses (Equus caballus) to test whether MHC matching also affects male investment into ejaculates after short exposure to a female. Semen characteristics varied much among stallions. Controlling for this variance with a full-factorial within-subject experimental design, we found that a short exposure to an MHC-dissimilar mare enhanced male plasma...

Data from: Temporal migration pattern and mating tactics influence size-assortative mating in Rana temporaria

Carolin Dittrich, Ariel Rodríguez, Ori Segev, Sanja Drakulić, Heike Feldhaar, Miguel Vences & Mark-Oliver Rödel
Assortative mating is a common pattern in sexually reproducing species, but the mechanisms leading to assortment remain poorly understood. By using the European common frog (Rana temporaria) as a model, we aim to understand the mechanisms leading to size-assortative mating in amphibians. With data from natural populations collected over several years, we first show a consistent pattern of size-assortative mating across our two study populations. We subsequently ask if assortative mating may be explained by...

Additional file 1 of Modulation of the porcine intestinal microbiota in the course of Ascaris suum infection

Andrea Springer, Liane Wagner, Sarina Koehler, Stefanie Klinger, Gerhard Breves, Dagmar A. Brüggemann & Christina Strube
Additional file 1. Results of PERMANOVA for each day p.i. testing the effect of the A. suum experimental group (single-infection, trickle-infection, non-infected control) on microbiota composition in porcine faecal samples, based on Jensen–Shannon distances. Significant P-values are printed in bold.

Additional file 4 of Modulation of the porcine intestinal microbiota in the course of Ascaris suum infection

Andrea Springer, Liane Wagner, Sarina Koehler, Stefanie Klinger, Gerhard Breves, Dagmar A. Brüggemann & Christina Strube
Additional file 4. Heatmap of differentially abundant species in the (A) ileum and (B) caecum and colon of A. suum-infected pigs compared with a non-infected control group, as determined by DESeq2 analysis. Only differences with Benjamini–Hochberg-adjusted P-values ≤ 0.01 are shown as coloured tiles.

Additional file 3 of Modulation of the porcine intestinal microbiota in the course of Ascaris suum infection

Andrea Springer, Liane Wagner, Sarina Koehler, Stefanie Klinger, Gerhard Breves, Dagmar A. Brüggemann & Christina Strube
Additional file 3. Results of PERMANOVAs testing the effect of each A. suum experimental group vs the control group on the microbiota composition in ingesta samples from the ileum, caecum and colon on days 21, 35 and 49 p.i. Analyses were based on OTU-level Jensen–Shannon distance values.

Modulation of the porcine intestinal microbiota in the course of Ascaris suum infection

Andrea Springer, Liane Wagner, Sarina Koehler, Stefanie Klinger, Gerhard Breves, Dagmar A. Brüggemann & Christina Strube
Abstract Background The porcine roundworm Ascaris suum impairs feed conversion and weight gain, but its effects on intestinal microbiota remain largely unexplored. Methods Modulation of the intestinal microbiota was assessed in pigs that were infected once with 10,000 A. suum eggs and pigs that received a trickle infection (1000 eggs/day over 10 days), compared with a non-infected control group. Six pigs each were sacrificed per group at days 21, 35 and 49 post-infection (p.i.). Faecal...

Data from: Female MHC type affects male testosterone levels and sperm number in the horse (Equus caballus)

Dominik Burger, Guillaume Dolivo, Eliane Marti, Harald Sieme & Claus Wedekind
Odours of vertebrates often contain information about the major histocompatibility complex (MHC), and are used in kin recognition, mate choice or female investment in pregnancy. It is, however, still unclear whether MHC-linked signals can also affect male reproductive strategies. We used horses (Equus caballus) to study this question under experimental conditions. Twelve stallions were individually exposed either to an unfamiliar MHC-similar mare and then to an unfamiliar MHC-dissimilar mare, or vice versa. Each exposure lasted...

Data from: Body shape convergence driven by small size optimum in marine angelfishes

Bruno Frédérich, Francesco Santini, Nicolai Konow, Joseph Schnitzler, David Lecchini & Michael E. Alfaro
Convergent evolution of small body size occurs across many vertebrate clades and may reflect an evolutionary response to shared selective pressures. However it remains unclear if other aspects of phenotype undergo convergent evolution in miniaturized lineages. Here we present a comparative analysis of body size and shape evolution in marine angelfishes (Pomacanthidae), a reef fish family characterized by repeated transitions to small body size. We ask if lineages that evolve small sizes show convergent evolution...

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  • University of Veterinary Medicine Hanover
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