99 Works

BIBS-dataset: Biodiversity maintains soil multifunctionality and soil organic carbon in novel urban ecosystems

Conrad Schittko
In this study, we assessed the influence of above- and belowground diversity, as well as urbanization and plant invasions, on multifunctionality and organic carbon stocks of soils in non-manipulated grasslands along an urbanization gradient in Berlin, Germany. We focused on plant diversity (measured as species richness and functional trait diversity) and, in addition, on soil organism diversity as a potential mediator for the relationship of plant species diversity and ecosystem functioning. Our results showed positive...

Data from: Variation in species light acquisition traits under fluctuating light regimes: implications for non‐equilibrium coexistence

Alexis Guislain, Beatrix E. Beisner & Jan Köhler
Resource distribution heterogeneity offers niche opportunities for species with different functional traits to develop and potentially coexist. Available light (photosynthetically active radiation or PAR) for suspended algae (phytoplankton) may fluctuate greatly over time and space. Species-specific light acquisition traits capture important aspects of the ecophysiology of phytoplankton and characterize species growth at either limiting or saturating daily PAR supply. Efforts have been made to explain phytoplankton coexistence using species-specific light acquisition traits under constant light...

Data from: Spatial and topical imbalances in biodiversity research

Laura Tydecks, Jonathan Jeschke, Max Wolf, Gabriel Singer, Klement Tockner & Jonathan M. Jeschke
The rapid erosion of biodiversity is among the biggest challenges human society is facing. Concurrently, major efforts are in place to quantify changes in biodiversity, to understand the consequences for ecosystem functioning and human wellbeing, and to develop sustainable management strategies. Based on comprehensive bibliometric analyses covering 134,321 publications, we report systematic spatial biases in biodiversity-related research. Research is dominated by wealthy countries, while major research deficits occur in regions with disproportionately high biodiversity as...

Data from: Warming advances top-down control and reduces producer biomass in a freshwater plankton community

Mandy Velthuis, Lisette N. De Senerpont Domis, Thijs Frenken, Susanne Stephan, Garabet Kazanjian, Ralf Aben, Sabine Hilt, Sarian Kosten, Ellen Van Donk & Dedmer B. Van De Waal
Global warming has been shown to affect ecosystems worldwide. Warming may, for instance, disrupt plant herbivore synchrony and bird phenology in terrestrial systems, reduce primary production in oceans, and promote toxic cyanobacterial blooms in freshwater lakes. Responses of communities will not only depend on direct species-specific temperature effects, but also on indirect effects related to bottom-up and top-down processes. Here, we investigated the impact of warming on freshwater phytoplankton community dynamics, and assessed the relative...

Data from: Population differentiation of zander (Sander lucioperca, Linnaeus, 1758) across native and newly colonized ranges suggests increasing admixture in the course of an invasion

Erik Eschbach, Arne W. Nolte, Klaus Kohlmann, Petra Kersten, Robert Arlinghaus & Jochem Kail
In addition to ecological factors, evolutionary processes can determine the invasion success of a species. In particular, genetic admixture has the potential to induce rapid evolutionary change, which can result from natural or human-assisted secondary contact between differentiated populations. We studied the recent range expansion of zander in Germany focusing on the interplay between invasion and genetic admixture. Historically, the rivers Elbe and Danube harboured the most north-western source populations from which a north-westward range...

Data from: Response of bats to light with different spectra: light-shy and agile bat presence is affected by white and green, but not red light

Kamiel Spoelstra, Roy H. A. Van Grunsven, Jip J. C. Ramakers, Kim B. Ferguson, Thomas Raap, Maurice Donners, Elmar M. Veenendaal & Marcel E. Visser
Artificial light at night has shown a remarkable increase over the past decades. Effects are reported for many species groups, and include changes in presence, behaviour, physiology and life-history traits. Among these, bats are strongly affected, and how bat species react to light is likely to vary with light colour. Different spectra may therefore be applied to reduce negative impacts. We used a unique set-up of eight field sites to study the response of bats...

Data from: Proto-cooperation: group hunting sailfish improve hunting success by alternating attacks on grouping prey

James E. Herbert-Read, Pawel Romanczuk, Stefan Krause, Daniel Strömbom, Pierre Couillaud, Paolo Domenici, Ralf H.J.M. Kurvers, Stefano Marras, John F. Steffensen, Alexander D.M. Wilson, Jens Krause, Alexander D. M. Wilson & Ralf H. J. M. Kurvers
We present evidence of a novel form of group hunting. Individual sailfish (Istiophorus platypterus) alternate attacks with other group members on their schooling prey (Sardinella aurita). While only 24% of attacks result in prey capture, multiple prey are injured in 95% of attacks, resulting in an increase of injured fish in the school with the number of attacks. How quickly prey are captured is positively correlated with the level of injury of the school, suggesting...

Data from: Population structure of a microparasite infecting Daphnia: spatio-temporal dynamics

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Background: Detailed knowledge of spatial and temporal variation in the genetic population structure of hosts and parasites is required for understanding of hostparasite coevolution. As hot-spots of contemporary coevolution in natural systems are difficult to detect and long-term studies are restricted to few systems additional population genetic data from various hostparasite systems may provide important insights into the topic. This is particularly true for parasites as these players have been under-investigated so far due to...

Data from: Adaptive genetic divergence along narrow environmental gradients in four stream insects

Kozo Watanabe, So Kazama, Tatsuo Omura & Michael T. Monaghan
A central question linking ecology with evolutionary biology is how environmental heterogeneity can drive adaptive genetic divergence among populations. We examined adaptive divergence of four stream insects from six adjacent catchments in Japan by combining field measures of habitat and resource components with genome scans of non-neutral Amplified Fragment Length Polymorphism (AFLP) loci. Neutral genetic variation was used to measure gene flow and non-neutral genetic variation was used to test for adaptive divergence. We identified...

Data from: The QRS (Quantification of Representative Sequences) pipeline for amplicon sequencing: case study on within-population ITS1 sequence variation in a microparasite infecting Daphnia

Enrique Gonzalez-Tortuero, Jakub Rusek, Adam Petrusek, Sabine Giessler, Dimitrios Lyras, Sonja Grath, Federico Castro-Monzon & Justyna Wolinska
Next generation sequencing (NGS) platforms are replacing traditional molecular biology protocols like cloning and Sanger sequencing. However, accuracy of NGS platforms has rarely been measured when quantifying relative frequencies of genotypes or taxa within populations. Here we developed a new bioinformatic pipeline (QRS) that pools similar sequence variants and estimates their frequencies in NGS data sets from populations or communities. We tested whether the estimated frequency of representative sequences, generated by 454 amplicon sequencing, differs...

Data from: Population genomics of wild and laboratory zebrafish (Danio rerio)

Andrew R Whiteley, Anuradha Bhat, Emilia P Martins, Richard L Mayden, M Arunachalam, Silva Uusi-Heikkilä, A.T.A. Ahmed, Jiwan Shrestha, Matthew Clark, Derek Stemple & Louis Bernatchez
Understanding a wider range of genotype-phenotype associations can be achieved through ecological and evolutionary studies of traditional laboratory models. Here, we conducted the first large-scale geographic analysis of genetic variation within and among wild zebrafish (Danio rerio) populations occurring in Nepal, India, and Bangladesh and we genetically compared wild populations to several commonly used lab strains. We examined genetic variation at 1,832 polymorphic EST-based SNPs and the cytb mitochondrial gene in 13 wild populations and...

Measuring the contribution of evolution to community trait structure in freshwater zooplankton

Lynn Govaert, Luc De Meester, Steven Declerck, Sarah Rousseaux & Jelena H. Pantel
There are currently few predictions about when evolutionary processes are likely to play an important role in structuring community features.Determining predictors that indicate when evolution is expected to impact ecological processes in natural landscapes can help researchers identify eco-evolutionary 'hotspots', where eco-evolutionary interactions are more likely to occur. Using data collected from a survey in freshwater cladoceran communities, landscape population genetic data, and phenotypic trait data measured in a common garden, we applied a Bayesian...

Data from: Predator abundance drives the association between exploratory personality and foraging habitat risk in a wild marine meso-predator.

Félicie Dhellemmes, Matthew Smukall, Tristan Guttridge, Jens Krause & Nigel Hussey
1. In recent years, the incorporation of lower levels of organization to the understanding of population ecology, has led to an increase in interest for animal personality and individual foraging specialization. Despite these topics investigating comparable phenomena, i.e. individual consistency in behavior and in food resource use respectively, they have rarely been investigated together. 2. Food resource use is thought to be at the interface between personality and life-history. More explorative individuals in a population,...

Fish abundance data in forest steppe and grassland river networks in Mongolia

Alain Maasri, Mark Pyron, Emily Arsenault, James Thorp, Bud Mendsaikhan, Flavia Tromboni, Mario Minder, Scott Kenner, John Costello, Sudeep Chandra, Amarbat Otgonganbat & Bazartseren Boldgiv
Fish abundance data (fish per m) collected during the MACRO project in Mongolia. We collected fish assemblages in river networks of two different ecoregions, the Forest Steppe (FS) and Grassland (G), in 2017 and 2019.

Morphometric data of two tree frog species and their hybrids from a hybrid zone in Poland

Matthias Stöck, Tomasz Majtyka, Bartosz Borczyk & Maria Ogielska
Under incomplete reproductive isolation, secondary contact of diverged allopatric lineages may form hybrid zones that allow to study recombinants over several generations as excellent systems of genomic interactions, resulting from the evolutionary forces, acting on certain genes and phenotypes. Hybrid phenotypes are expected to either exhibit intermediacy or, alternatively, transgressive traits, which exceed the extremes of their parents due to epistasis and segregation of complementary alleles. While transgressive morphotypes have been examined in fish, reptiles,...

Data from: Sex-chromosome differentiation parallels post-glacial range expansion in European tree frogs (Hyla arborea).

Christophe Dufresnes, Youna Bertholet, Jérôme Wassef, Karim Ghali, Romain Savary, Baptiste Pasteur, Alan Brelsford, Beata Rozenblut-Kościsty, Maria Ogielska, Matthias Stöck & Nicolas Perrin
Occasional XY recombination is a proposed explanation for the sex-chromosome homomorphy in European tree frogs. Numerous laboratory crosses, however, failed to detect any event of male recombination, and a detailed survey of NW-European Hyla arborea populations identified male-specific alleles at sex-linked loci, pointing to the absence of XY recombination in their recent history. Here we address this paradox in a phylogeographic framework, by genotyping sex-linked microsatellite markers in populations and sibships from the entire species...

Data from: Evolutionary melting pots: a biodiversity hotspot shaped by ring diversifications around the Black Sea in the Eastern tree frog (Hyla orientalis)

Christophe Dufresnes, Spartak N. Litvinchuk, Julien Leuenberger, Karim Ghali, Oleksandr Zinenko, Matthias Stöck & Nicolas Perrin
Hotspots of intraspecific genetic diversity, which are of primary importance for the conservation of species, have been associated with glacial refugia, that is areas where species survived the Quaternary climatic oscillations. However, the proximate mechanisms generating these hotspots remain an open issue. Hotspots may reflect the long-term persistence of large refugial populations; alternatively, they may result from allopatric differentiation between small and isolated populations, that later admixed. Here, we test these two scenarios in a...

Data from: Contrasting the roles of section length and instream habitat enhancement for river restoration success: a field study on 20 European restoration projects

Daniel Hering, Jukka Aroviita, Annette Baattrup-Pedersen, Karel Brabec, Tom Buijse, Frauke Ecke, Nikolai Friberg, Marek Gielczewski, Kathrin Januschke, Jan Köhler, Benjamin Kupilas, Armin W. Lorenz, Susanne Muhar, Amael Paillex, Michaela Poppe, Torsten Schmidt, Stefan Schmutz, Jan Vermaat, Piet F. M. Verdonschot, Ralf C. M. Verdonschot, Jochem Kail & Christian Wolter
1. Restoration of river hydromorphology often has limited detected effects on river biota. One frequently discussed reason is that the restored river length is insufficient to allow populations to develop and give the room for geomorphologic processes to occur. 2. We investigated ten pairs of restored river sections of which one was a large project involving a long, intensively restored river section and one represented a smaller restoration effort. The restoration effect was quantified by...

Rethinking megafauna

Marcos Moleón, José Sánchez-Zapata, José Donázar, Eloy Revilla, Berta Martín-López, Cayetano Gutiérrez-Cánovas, Wayne Getz, Zebensui Morales-Reyes, Ahimsa Campos-Arceiz, Larry Crowder, Mauro Galetti, Manuela González-Suárez, Fengzhi He, Pedro Jordano, Rebecca Lewison, Robin Naidoo, Norman Owen-Smith, Nuria Selva, Jens-Christian Svenning, José Tella, Christiane Zarfl, Sonja Jähnig, Matt Hayward, Søren Faurby, Nuria García … & Klement Tochner
Concern for megafauna is increasing among scientists and non-scientists. Many studies have emphasized that megafauna play prominent ecological roles and provide important ecosystem services to humanity. But, what precisely are “megafauna”? Here we critically assess the concept of megafauna and propose a goal-oriented framework for megafaunal research. First, we review definitions of megafauna and analyze associated terminology in the scientific literature. Second, we conduct a survey among ecologists and paleontologists to assess the species traits...

Parasite infection disrupts escape behaviour in fish shoals

Nicolle Demandt, Marit Praetz, Ralf Kurvers, Jens Krause, Joachim Kurtz & Jörn Scharsack
Many prey species have evolved collective responses to avoid predation. They rapidly transfer information about potential predators to trigger and coordinate escape waves. Predation avoidance behaviour is often manipulated by trophically transmitted parasites, to facilitate their transmission to the next host. We hypothesised that the presence of infected, behaviourally altered individuals might disturb the spread of escape waves. We used the tapeworm Schistocephalus solidus, which increases risk-taking behaviour and decrease social responsiveness of its host,...

Size-selective mortality induces evolutionary changes in group risk-taking behavior and the circadian system in a fish

Valerio Sbragaglia, Valerio Sbragaglia, Jose Fernando López-Olmeda, Elena Frigato, Cristiano Bertolucci & Robert Arlinghaus
1. Intensive and trait-selective mortality of fish and wildlife can cause evolutionary changes in a range of life-history and behavioral traits. These changes might in turn alter the circadian system due to coevolutionary mechanisms or correlated selection responses both at behavioral and molecular levels, with knock-on effects on daily physiological processes and behavioral outputs. 2. We examined the evolutionary impact of size-selective harvesting on group risk-taking behavior and the circadian system in a model fish...

Data from: Testing the devil's impact on southern Baltic and North Sea basin whitefish (Coregonus spp.) diversity

Thomas Mehner, Kirsten Pohlmann, David Bittner & Jörg Freyhof
Background: The diversity and phylogeny of whitefish of the genus Coregonus is complex, and includes many endemic species of high conservation concern. However, because of commercial importance of whitefish fisheries, stockings and translocations have occurred repeatedly, which challenges the identification of local populations as conservation units. This study analyses the phylogenetic relationships of 15 contemporary and two historical populations of lake-resident and anadromous whitefish (Coregonus spp.) from the southern Baltic and North Sea basins. We...

Data from: Using a robotic fish to investigate individual differences in social responsiveness in the guppy

David Bierbach, Tim Landgraf, Pawel Romanczuk, Juliane Lukas, Hai Nguyen, Max Wolf & Jens Krause
Responding towards the actions of others is one of the most important behavioral traits whenever animals of the same species interact. Mutual influences among interacting individuals may modulate the social responsiveness seen and thus makes it often difficult to study the level and individual variation in responsiveness. Here, open-loop biomimetic robots that provide standardized, non-interactive social cues can be a useful tool. These robots are not affected by the live animal’s actions but are assumed...

Data from: Spatial variation in throughfall, soil, and plant water isotopes in a temperate forest

Gregory R. Goldsmith, Scott T. Allen, Sabine Braun, Nadine Engbersen, Clara Romero González-Quijano, James W. Kirchner & Rolf T.W. Siegwolf
Studies of stable isotopes of water in the environment have been fundamental to advancing our understanding of how water moves through the soil-plant-atmosphere continuum; however, much of this research focuses on how water isotopes vary in time, rather than in space. We examined the spatial variation in the δ18O and δ2H of throughfall and bulk soil water, as well as branch xylem and bulk leaf water of Picea abies (Norway Spruce) and Fagus sylvatica (Beech),...

Data from: Profound genetic divergence and asymmetric parental genome contributions as hallmarks of hybrid speciation in polyploid toads

Caroline Betto-Colliard, Sylvia Hofmann, Roberto Sermier, Nicolas Perrin & Matthias Stöck
The evolutionary causes and consequences of allopolyploidization, an exceptional pathway to instant hybrid speciation, are poorly investigated in animals. In particular, when and why hybrid polyploids versus diploids are produced, and constraints on sources of paternal and maternal ancestors, remain underexplored. Using the Palearctic green toad radiation (including bisexually reproducing species of three ploidy levels) as model, we generate a range-wide multi-locus phylogeny of 15 taxa and present four new insights: (i) At least five...

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  • Leibniz Institute of Freshwater Ecology and Inland Fisheries
  • Freie Universität Berlin
  • University of Lausanne
  • Humboldt University of Berlin
  • Ludwig Maximilian University of Munich
  • Swiss Federal Institute of Aquatic Science and Technology
  • Fudan University
  • University of Massachusetts Amherst
  • Centre for Ecology and Hydrology
  • University of Wrocław