28 Works

High parasite diversity in the amphipod Gammarus lacustris in a subarctic lake

Jenny Shaw, Eirik Henriksen, Rune Knudsen, Jesper Kuhn, Armand Kuris, Kevin Lafferty, Anna Siwertsson, Miroslava Soldánová & Per-Arne Amundsen
Amphipods are often key species in aquatic food webs due to their functional roles in the ecosystem and as intermediate hosts for trophically transmitted parasites. Amphipods can also host many parasite species, yet few studies address the entire parasite community of a gammarid population, precluding a more dynamic understanding of the food web. We set out to identify and quantify the parasite community of Gammarus lacustris to understand the contributions of the amphipod and its...

Contrasting biomass allocation responses across ontogeny and stress gradients reveal plant adaptations to drought and cold

Jiri Dolezal, Veronica Jandova, Martin Macek & Pierre Liancourt
How plants allocate their biomass to different organs is essential to understand plant adaptation and distribution. Overall, biomass allocation may follow fixed rules across taxa. They are also likely to exhibit substantial departure from these rules during ontogeny and in response to particular limiting factors to optimize their growth and maximize their survival. However, how plants adjust their allocation priorities depending on size and age across stress gradients remain largely unkown in wild populations. We...

Data from: Impacts of habitat on butterfly dispersal in tropical forests, parks and grassland patches embedded in an urban landscape

Anuj Jain, Simon Kee Mun Chan, Petr Vlasanek & Edward Layman Webb
Dispersal distances of 17 species of butterflies in tropical Singapore were significantly greater in forest than in urban habitat. Butterflies in urban plots frequently moved within suitable habitat (park/grassland) patches but rarely crossed non-habitat patches suggesting potential isolation and a need for urban corridors.

A new, undescribed species of Melanocharis berrypecker from western New Guinea and the evolutionary history of the family Melanocharitidae

Borja Milá, Jade Bruxaux, Guillermo Friis, Katerina Sam, Hidayat Ashari & Christophe Thébaud
Western New Guinea remains one of the last biologically underexplored regions of the world, and much remains to be learned regarding the diversity and evolutionary history of its fauna and flora. During a recent ornithological expedition to the Kumawa Mountains in West Papua, we encountered an undescribed species of Melanocharis berrypecker (Melanocharitidae) in cloud forest at an elevation of 1200 m asl. Its main characteristics are iridescent blue-black upperparts, satin-white underparts washed lemon yellow, and...

Data from the study: Effect of experimental DNA demethylation on phytohormones production and palatability of a clonal plant after induction via jasmonic acid

Vít Latzel
Many plant species protect themselves against herbivores through mechanical or chemical so-called inducible defences (ID). These are regulated via a hormonal cascade which may be under epigenetic control and in which jasmonic acid (JA) plays a prominent role. In this study, we indirectly tested the role of DNA methylation in the production of ID and the synthesis of hormones involved in the ID signalling cascade. Using different intensities of 5-azacytidine application, we aimed to produce...

Data from: Temperature does not influence functional response of amphipods consuming different trematode prey

Ana Born-Torrijos, Rachel A. Paterson, Gabrielle S. Van Beest, Jessica Schwelm, Tereza Vyhlídalová, Eirik H. Henriksen, Rune Knudsen, Roar Kristoffersen, Per-Arne Amundsen & Miroslava Soldánová
Direct consumption on free-living cercariae stages of trematodes by non-host organisms interferes with trematode transmission and leads to reduced infections in the next suitable hosts. Consumer functional responses provide a useful tool to examine relationships between consumption rates and ecologically relevant prey densities, whilst also accounting for abiotic factors that likely influence consumption rates. We investigated how temperature influences the consumer functional response of the amphipod Gammarus lacustris towards the cercariae of three freshwater trematodes...

Data from: Butterfly and moth communities differ in their response to habitat structure in rainforests of Mount Cameroon

Sylvain Delabye, Vincent Maicher, Szabolcs Sáfián, Jiří Doležal, Jan Altman, Štěpán Janeček, Ishmeal Kobe, Mercy Murkwe, Pavel Šebek & Robert Tropek
Mechanisms structuring tropical communities are still under-studied, especially in Afrotropical rainforests. Although insect herbivores are considered to depend on plant diversity, we hypothesized that vegetation structure, together with other microhabitat characteristics, can be more important for some insects. Here, we compared habitat associations of fruit-feeding butterflies and moths, two ecologically different groups of Lepidoptera, in three rainforest localities in foothills of Mount Cameroon, West/Central Africa. Based on a comprehensive dataset of 16,040 specimens of 398...

Intrinsic elastic anisotropy of Westerly granite observed by ultrasound measurements, microstructural investigations and neutron diffraction

Tomáš Lokajíček
Westerly granite (WG) has been accepted as an isotropic homogeneous rock. Here we return to WG and observe significant elastic anisotropy using multidirectional ultrasonic sounding on spherical samples at pressures up to 400 MPa. Thermal treatment of WG leads to formation of microcracks that reduce elastic wave velocities and increase its elastic anisotropy. The 3D distribution of P-wave velocities at low pressure is close to orthorhombic symmetry. Application of hydrostatic pressure closes most of thermally...

Data from: Elevation and leaf litter interact in determining the structure of ant communities on a tropical mountain

Petr Klimes, Jimmy Moses, Tom Fayle & Vojtech Novotny
Tropical mountains encompass a wide range of environmental conditions and are useful models for studying drivers of community structure. Invertebrate species richness and abundance show various elevational patterns. However, the drivers of these differences are not well understood, although microhabitat complexity is potentially important. We studied ground-dwelling ants using pitfall trapping and hand collection on Mt. Wilhelm (Papua New Guinea) from 169 to 3,795 m a.s.l. We tested for the effects of elevation and leaf...

How butterflies keep their cool: physical and ecological traits influence thermoregulatory ability and population trends.

Andrew Bladon, Matthew Lewis, Eleanor Bladon, Sam Buckton, Stuart Corbett, Steven Ewing, Matthew Hayes, Gwen Hitchcock, Richard Knock, Colin Lucas, Adam McVeigh, Rosa Menendez, Jonah Walker, Tom Fayle & Edgar Turner
Understanding which factors influence the ability of individuals to respond to changing temperatures is fundamental to species conservation under climate change. We investigated how a community of butterflies responded to fine-scale changes in air temperature, and whether species-specific responses were predicted by ecological or morphological traits. Using data collected across a UK reserve network, we investigated the ability of 29 butterfly species to buffer thoracic temperature against changes in air temperature. First, we tested whether...

Data from: Complex evolution of insect insulin receptors and homologous decoy receptors, and functional significance of their multiplicity

Vlastimil Smýkal, Martin Pivarči, Jan Provazník, Olga Bazalová, Pavel Jedlička, Ondřej Lukšan, Aleš Horák, Hana Vaněčková, Vladimír Beneš, Ivan Fiala Fiala, Robert Hanus & David Doležel
Evidence accumulates that the functional plasticity of insulin and insulin-like growth factor signaling in insects could spring, among others, from the multiplicity of insulin receptors (InRs). Their multiple variants may be implemented in the control of insect polyphenism, such as wing or caste polyphenism. Here, we present a comprehensive phylogenetic analysis of insect InR sequences in 118 species from 23 orders and investigate the role of three InRs identified in the linden bug, Pyrrhocoris apterus,...

Negative feedback concept in tagging: ghost tags imperil the long-term monitoring of fishes

Marek Šmejkal, Daniel Bartoň, Vilém Děd, Allan Souza, Petr Blabolil, Lukáš Vejřík, Zuzana Sajdlová, Milan Říha & Jan Kubečka
Wildlife monitoring using passive telemetry has become a robust method for investigating animal migration. With increased use, this method progressively pollutes the environment with technological waste represented by so called ghost tags (PIT tags ending in the environment due to reproductive expulsions, shedding or animal mortality). However, their presence in the environment may lead to failed detections of living individuals. We used tagging data from studies of the asp Leuciscus aspius and the bleak Alburnus...

Genetic variation in an ephemeral mudflat species: the role of the soil seed bank and dispersal in river and secondary anthropogenic habitats

Karin Tremetsberger, Joerg Boeckelmann, Katerina Sumberova, Gudrun Kohl, Heinrich Grausgruber & Karl-Georg Bernhardt
Many ephemeral mudflat species, which rely on a soil seed bank to build up the next generation, are endangered in their natural habitat due to the widespread regulation of rivers. The aim of the present study was to elucidate the role of the soil seed bank and dispersal for the maintenance of genetic diversity in populations of near-natural river habitats and anthropogenic habitats created by traditional fish farming practices using Cyperus fuscus as a model....

Tree canopy accession strategy changes along the latitudinal gradient of temperate Northeast Asia

Jan Altman, Pavel Janda, Olga Ukhvatkina, Anna Vozmishcheva, Alexander Omelko, Jiří Doležal, Pavel Krestov, Alexander Zhmerenetsky & Jong-Suk Song
Aim: Understanding how natural forest disturbances control tree regeneration is key to predict the consequences of globally accelerating forest diebacks on carbon stocks and forest biodiversity. Tropical cyclones (TCs) are important drivers of forest dynamics in Eastern Asia and it is predicted that their importance will increase. However, little is known about TC impact on forest regeneration. Location: Latitudinal gradient from south Korea (33°N) to the Russian Far East (45°N). Time period: Last 300 years....

Data from: Species abundance fluctuations over 31 years are associated with plant-soil feedback in a species-rich mountain meadow

, Tomáš Herben, Annelien Van Den Brink, Eric Visser & Hans De Kroon
1. Increasing evidence suggest that plant-soil interactions play an essential role in plant community assembly processes. Empirical investigations show that plant species abundance in the field is often related to plant-soil biota interactions, however, the direction of these relations have yielded inconsistent results. 2. We combined unique 31-year long field data on species abundances from a species-rich mountain meadow with single time point plant-soil feedback greenhouse experiments of 24 co-occurring plant species. We tested whether...

Phylogenetic relatedness mediates persistence and density of soil seed banks

Margherita Gioria, Petr Pyšek, Carol Baskin & Angelino Carta
Soil seed banks can strongly affect survival and expansion of plant populations by spreading mortality risks and distributing genetic diversity through time. Knowledge of the main factors regulating the ability of seeds to persist in the soil beyond the first growing season is however limited. While morphological and physiological seed traits, and the degree of environmental uncertainty are considered important in shaping the seed-banking strategies of plants, global assessments that explicitly account for phylogenetic relatedness...

Data from: Competition among native and invasive Phragmites australis populations: an experimental test of the effects of invasion status, genome size, and ploidy level.

Petr Pyšek, Jan Čuda, Petr Šmilauer, Hana Skálová, Zuzana Chumová, Carla Lambertini, Magdalena Lučanová, Hana Ryšavá, Pavel Trávníček, Kristýna Šemberová & Laura Meyerson
Among the traits whose relevance for plant invasions has recently been suggested are genome size (the amount of nuclear DNA) and ploidy level. So far, research on the role of genome size in invasiveness has been mostly based on indirect evidence by comparing species with different genome sizes, but how karyological traits influence competition at the intraspecific level remains unknown. We addressed these questions in a common‐garden experiment evaluating the outcome of direct intraspecific competition...

Genomics of new ciliate lineages provides insight into the evolution of obligate anaerobiosis - single gene datasets for phylogenomic analysis of anaerobic ciliates (SAL, Ciliophora), protein datasets for mitochondrial pathways prediction, and mitochondrial genomes

Johana Rotterova, Eric Salomaki, Tomas Panek, William Bourland, David Zihala, Petr Taborsky, Virginia Edgcomb, Roxanne Beinart, Martin Kolisko & Ivan Cepicka
Oxygen plays a crucial role in energetic metabolism of most eukaryotes. Yet, adaptations to low oxygen concentrations leading to anaerobiosis have independently arisen in many eukaryotic lineages, resulting in a broad spectrum of reduced and modified mitochondrial organelles (MROs). In this study, we present the discovery of two new class-level lineages of free-living marine anaerobic ciliates, Muranotrichea, cl. nov. and Parablepharismea, cl. nov., that, together with the class Armophorea, form a major clade of obligate...

Multigene phylogenetics of euglenids based on single-cell transcriptomics of diverse phagotrophs

Gordon Lax, Martin Kolisko, Yana Eglit, Won Je Lee, Naoji Yubuki, Anna Karnkowska, Leander Brian, Gertraud Burger, Patrick Keeling & Alastair Simpson
Euglenids are a well-known group of single-celled eukaryotes, with phototrophic, osmotrophic and phagotrophic members. Phagotrophs represent most of the phylogenetic diversity of euglenids, and gave rise to the phototrophs and osmotrophs, but their evolutionary relationships are poorly understood. Symbiontids, in contrast, are anaerobes that are alternatively inferred to be derived euglenids, or a separate euglenozoan group. Most phylogenetic studies of euglenids have examined the SSU rDNA gene only, which is often highly divergent. Also, many...

Moose occurrence data in Bohemian Forest Ecosystem

Tomáš Janík, Marco Heurich, Wibke Peters, Martin Šálek, Dušan Romportl, Miloslav Jirků, Thomas Engleder, Martin Ernst & Jiří Neudert
This dataset contains all gathered spatial data for moose occurrence in our study area (see manuscript). In the table you can find these attributes: country of the occurrence, data quality according to SCALP classification, details about occurrence, coordinates for used S-JTSK (5514) reference system, locality and year of the record.

Multiple phenotypes conferred by a single insect symbiont are independent

Ailsa McLean, Jan Hrček, Benjamin Parker, Hugo Mathé-Hubert, Heidi Kaech, Chantal Paine & Charles Godfray
Many microbial symbionts have multiple phenotypic consequences for their animal hosts. However, the ways in which different symbiont-mediated phenotypes combine to affect fitness are not well understood. We investigated whether there are correlations between different symbiont-mediated phenotypes. We used the symbiont Spiroplasma, a striking example of a bacterial symbiont conferring diverse phenotypes on insect hosts. We took 11 strains of Spiroplasma infecting pea aphids (Acyrthosiphon pisum) and assessed their ability to provide protection against the...

Data from: Functional traits determine why species belong to the dark diversity in a dry grassland fragmented landscape

Rocío Belinchón, Lucie Hemrová & Zuzana Münzbergová
A challenge for nature conservation is to know why many species are absent from suitable habitats and whether they might be able to disperse and to establish. Here, we used 272 dry grassland patches within a fragmented landscape to investigate the role of local abiotic conditions and dispersal filtering in determining the likelihood of vascular plants to belong to the dark diversity (i.e. absent portion of the species pool). First, we quantified the species (SD),...

Banana pangenome supplementary data

Habib Rijzaani, Philipp Bayer, Mathieu Rouard, Jaroslav Doležel, Jacqueline Batley & David Edwards

Transcriptome-wide comparisons and virulence gene polymorphisms of host-associated genotypes of the cnidarian parasite Ceratonova shasta in salmonids

Gema Alama Bermejo, Eli Meyer, Stephen Douglas Atkinson, Astrid Sibylle Holzer, Monika Wiśniewska, Martin Kolisko & Jerri Lee Bartholomew
Ceratonova shasta is an important myxozoan pathogen affecting the health of salmonid fishes in the Pacific Northwest of North America. C. shasta exists as a complex of host-specific genotypes, some with low to moderate virulence, and one that causes a profound, lethal infection in susceptible hosts. High throughput sequencing methods are powerful tools for discovering the genetic basis of these host/virulence differences, but deep sequencing of myxozoans has been challenging due to extremely fast molecular...

Data from: Latitudinal patterns of alien plant invasions

Qinfeng Guo, Brian Cade, Wayne Dawson, Franz Essl, Holger Kreft, Jan Jan Pergl, Mark Van Kleunen, Patrick Weigelt, Marten Winter & Petr Pysek
Latitudinal patterns of biodiversity have long been a central topic in ecology and evolutionary biology. However, while most previous studies have focused on native species, little effort has been devoted to latitudinal patterns of plant invasions (with a few exceptions based on data from sparse locations). Using the most up-to-date worldwide native and alien plant distribution data from 801 regions (including islands), we compared invasion levels (i.e. alien richness/total richness) in the Northern and Southern...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Academy of Sciences of the Czech Republic
  • Czech Academy of Sciences
  • Charles University
  • University of South Bohemia in České Budějovice
  • The Arctic University of Norway
  • University of Rhode Island
  • Durham University
  • United States Geological Survey
  • University of Vienna
  • University of Konstanz