19 Works

Data from: Triple RNA-Seq characterizes aphid gene expression in response to infection with unequally virulent strains of the endosymbiont Hamiltonella defensa

Heidi Kaech, Alice Dennis & Christoph Vorburger
Background Secondary endosymbionts of aphids provide benefits to their hosts, but also impose costs such as reduced lifespan and reproductive output. The aphid Aphis fabae is host to different strains of the secondary endosymbiont Hamiltonella defensa, which encode different putative toxins. These strains have very different phenotypes: They reach different densities in the host, and the costs and benefits (protection against parasitoid wasps) they confer to the host vary strongly. Results We used RNA-Seq to...

Intergenerations effects of starvation on Athalia

Caroline Müller, Sarah Paul, Pragya Singh & Alice Dennis
Intergenerational effects, also known as parental effects in which the offspring phenotype is influenced by the parental phenotype, can occur in response to factors that occur not only in early but also in late parental life. However, little is known about how these parental life stage-specific environments interact with each other and with the offspring environment to influence offspring phenotypes, particularly in organisms that realize distinct niches across ontogeny. We examined the effects of parental...


Two seicmic detection arrays in the Vogtland swarm earthquake region.


Yudi M. Lozano, Carlos A. Aguilar-Trigueros, Gabriela Onandia, Stefanie Maaß, Tingting Zhao & Matthias C. Rillig
Microplastics in soils have become an important threat for terrestrial systems as they may potentially alter the geochemical/biophysical soil environment and can interact with drought. As microplastics may affect soil water content, this could exacerbate the well-known negative effects of drought on ecosystem functionality. Thus, functions including litter decomposition, soil aggregation or those related with nutrient cycling can be altered. Despite this potential interaction, we know relatively little about how microplastics, under different soil water...

Intraspecific trait variation alters the outcome of competition in freshwater ciliates

Sabine Floeder, Joanne Yong, Toni Klauschies, Ursula Gaedke, Tobias Poprick, Thorsten Brinkhoff & Stefanie Moorthi
Trait variation among heterospecific and conspecific organisms may substantially affect community and food web dynamics. While the relevance of competition and feeding traits have been widely studied for different consumer species, studies on intraspecific differences are more scarce, partly owing to difficulties in distinguishing different clones of the same species. Here, we investigate how intraspecific trait variation affects the competition between the freshwater ciliates Euplotes octocarinatus and Coleps hirtus in a nitrogen-limited chemostat system. The...

3D Neutron Computed Laminography of Maize Plants

Nicole Rudolph-Mohr, Sarah Bereswill, Christian Tötzke, Nikolay Kardjilov & Sascha E. Oswald
Plant root systems induce biogeochemical patterns in the soil by respiration, water uptake and root exudation that can be measured with in-situ imaging techniques. Slab-shaped rhizoboxes represent the optimum design for 2D optical fluorescence imaging of pH and oxygen dynamics in the rhizosphere as well as measurement of soil water content by neutron radiography. However, quality of standard tomographic (3D) imaging of laterally extended samples suffers from insufficient neutron transmission over a significant angular range....

Phylogeography of a widely distributed plant species reveals cryptic genetic lineages with parallel phenotypic responses to warming and drought conditions

Sandra Kahl, Christian Kappel, Jasmin Joshi & Michael Lenhard
To predict how widely distributed species will perform under future climate change it is crucial to understand and reveal their underlying phylogenetics. However, detailed information about plant adaptation and its genetic basis and history remains scarce and especially widely distributed species receive little attention despite their putatively high adaptability. To examine the adaptation potential of a widely distributed species, we sampled the model plant Silene vulgaris across Europe. In a greenhouse experiment, we exposed the...

Bee diversity in island-like habitats (kettle holes) to assess connectivity in agricultural landscapes - Part 1 of data collection

Sissi Lozada-Gobilard
During June and July of 2017, wild bees were collected using color traps (blue, yellow and white pans) in small water bodies called kettle holes embedded in agricultural landscapes in the north of Germany. After all wild bees were identified to species level, from a subset of samples we measured the Intertegular distance ITD (distance between the wings) as body size and searched for functional traits regarding sociality (solitary, eusocial, parasitic) nesting type (below- or...

Hayabusa2 Thermal Infrared Imager (TIR) Bundle

Tatsuaki Okada, Satoshi Tanaka, Tetsuya Fukuhara, Takehiko Arai, Takeshi Imamura, Yoshiko Ogawa, Kohei Kitazato, Toru Kouyama, Naoya Sakatani, Yuri Shimaki, Tomohiko Sekiguchi, Hiroki Senshu, Jun Takita, Makoto Taguchi, Hirohide Demura, Ryosuke Nakamura, Sunao Hasegawa, Tsuneo Matsunaga, Takehiko Wada, Jörn Helbert, Thomas G. Müller, Axel Hagermann, Jens Biele, Matthias Grott, Maximilian Hamm … & Marco Delbo
This PDS4 bundle collects all the operational data products produced by the Hayabusa2 TIR instrument.

Data from: Evidence of female preference for odour of distant over local males in a bat with female dispersal

Karin Schneeberger, Michael Schulze, Ingo Scheffler & Barbara Caspers
Geographic variation of sexual selected male traits is common in animals. Female choice also varies geographically and several studies found female preference for local males, which is assumed to lead to local adaptation and therefore increases fitness. As females are the non-dispersing sex in most mammalian taxa, this preference for local males might be explained by learning of male characteristics. Studies on preference of females in female-dispersing species are lacking so far. To find out...

Scale dependency of joint species distribution models challenges interpretation of biotic interactions

Christian König, Rafael O. Wüest, Catherine H. Graham, Dirk Nikolaus Karger, Thomas Sattler, Niklaus E. Zimmermann & Damaris Zurell
Aim: Separating the biotic and abiotic factors controlling species distributions has been a long-standing challenge in ecology and biogeography. Joint species distribution models (JSDMs) have emerged as a promising statistical framework towards this objective by simultaneously modeling the environmental responses of multiple species and approximating species associations based on patterns in their (co-)occurrences. However, the signature of biotic interactions should be most evident at fine spatial resolutions. Here, we test how the resolution of input...

Energetic constraints imposed on trophic interaction strengths enhance resilience in empirical and model food webs

Xiaoxiao Li, Wei Yang, Ursula Gaedke & Peter De Ruiter
1. Food web stability and resilience are at the heart of understanding the structure and functioning of ecosystems. Previous studies show that models of empirical food webs are substantially more stable than random ones, due to a few strong interactions embedded in a majority of weak interactions. Analyses of trophic interaction loops show that in empirical food webs the patterns in the interaction strengths prevent the occurrence of destabilizing heavy loops and thereby enhances resilience....

Seed traits matter—Endozoochoric dispersal through a pervasive mobile linker

Jonas Stiegler, Katrin Kiemel, Jana Eccard, Christina Fischer, Robert Hering, Sylvia Ortmann, Lea Strigl, Ralph Tiedemann, Wiebke Ullmann & Niels Blaum
Although many plants are dispersed by wind and seeds can travel long distances across unsuitable matrix areas, a large proportion relies on co-evolved zoochorous seed dispersal to connect populations in isolated habitat islands. Particularly in agricultural landscapes, where remaining habitat patches are often very small and highly isolated, mobile linkers as zoochorous seed dispersers are critical for the population dynamics of numerous plant species. However, knowledge about the quali- or quantification of such mobile link...

Adaptive and non-adaptive plasticity in changing environments: implications for sexual species with different life history strategies

Daniel Romero-Mujalli, Markus Rochow, Sandra Kahl, Sofia Paraskevopoulou, Remco Folkertsma, Florian Jeltsch & Ralph Tiedemann
Populations adapt to novel environmental conditions by genetic changes or phenotypic plasticity. Plastic responses are generally faster and can buffer fitness losses under variable conditions. Plasticity is typically modelled as random noise and linear reaction norms that assume simple one-to-one genotype-phenotype maps and no limits to the phenotypic response. Most studies on plasticity have focused on its effect on population viability. However, it is not clear, whether the advantage of plasticity depends solely on environmental...

Data from: Thermal differences between juveniles and adults increased over time in European forest trees

Maria Mercedes Caron, Florian Zellweger, Kris Verheyen, Lander Baeten, Radim Hédl, Bernhardt-Römermann Markus, Imre Berki, Jörg Brunet, Guillaume Decocq, Sandra Díaz, Thomas Dirnböck, Tomasz Durak, Thilo Heinken, Bogdan Jaroszewicz, Martin Kopecký, Jonathan Lenoir, Martin Macek, Malicki Marek, František Máliš, Thomas Nagel, Michael Perring, Petr Petřík, Kamila Reczyńska, Remigiusz Pielech, Wolfgang Schmidt … & Pieter De Frenne
Woody species’ requirements and environmental sensitivity change from seedlings to adults, a process referred to as ontogenetic shift. Such shifts can be increased by climate change. To assess the changes in the difference of temperature experienced by seedlings and adults in the context of climate change, it is essential to have reliable climatic data over long periods that capture the thermal conditions experienced by the individuals throughout their life cycle. Here we used a unique...

Spatially explicit models for decision-making in animal conservation and restoration

Damaris Zurell, Christian Koenig, Anne-Kathleen Malchow, Simon Kapitza, Greta Bocedi, Justin Travis & Guillermo Fandos
Models are useful tools for understanding and predicting ecological patterns and processes. Under ongoing climate and biodiversity change, they can greatly facilitate decision-making in conservation and restoration and help designing adequate management strategies for an uncertain future. Here, we review the use of spatially explicit models for decision support and identify key gaps in current modelling in conservation and restoration. Of 650 reviewed publications, 217 publications had a clear management application and were included in...

Data from: Functional diversity buffers the effects of a pulse perturbation on the dynamics of tritrophic food webs

Laurie Anne Wojcik, Ruben Ceulemans & Ursula Gaedke
Biodiversity decline causes a loss of functional diversity, which threatens ecosystems through a dangerous feedback loop: this loss may hamper ecosystems' ability to buffer environmental changes, leading to further biodiversity losses. In this context, the increasing frequency of human-induced excessive loading of nutrients causes major problems in aquatic systems. Previous studies investigating how functional diversity influences the response of food webs to disturbances have mainly considered systems with at most two functionally diverse trophic levels....

The novel concept of diversity at giving-up density (DivGUD) in experimental ressource landscapes of 9 food patches explored by Norway rats

Jana Eccard, Clara Ferreira, Andres Peredo Arce & Melanie Dammhahn
Foraging by consumers acts as a biotic filtering mechanism for biodiversity at the trophic level of resources. Variation in foraging behaviour have cascading effects on abundance, diversity, and functional trait composition of the community of resource species. Here we propose diversity at giving-up density (DivGUD), when foragers quit exploring a patch, as a novel concept and simple measure to quantify these effects at multiple spatial scales. In experimental landscapes, patch residency of wild rodents decreased...

Genomic basis for skin phenotype and cold adaptation in the extinct Steller's sea cow

Diana Le Duc, Akhil Velluva, Molly Cassatt-Johnstone, Remi-Andre Olsen, Sina Baleka, Chen-Ching Lin, Johannes R. Lemke, John R. Southon, Alexander Burdin, Ming-Shan Wang, Sonja Grunewald, Wilfried Rosendahl, Ulrich Joger, Sereina Rutschmann, Thomas B. Hildebrandt, Guido Fritsch, James A. Estes, Janet Kelso, Love Dalén, Michael Hofreiter, Beth Shapiro & Torsten Schöneberg
Steller’s sea cow, an extinct sirenian and one of the largest Quaternary mammals, was described by Georg Steller in 1741 and eradicated by humans within 27 years. Here, we complement Steller’s descriptions with paleogenomic data from 12 individuals. We identified convergent evolution between Steller’s sea cow and cetaceans but not extant sirenians, suggesting a role of several genes in adaptation to cold environments. Among these are inactivations of lipoxygenase genes, which in humans and mouse...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of Potsdam
  • Bielefeld University
  • Leibniz Centre for Agricultural Landscape Research
  • University of Applied Sciences Rapperswil
  • Freie Universität Berlin
  • Swiss Federal Institute for Forest, Snow and Landscape Research
  • Leibniz Institute for Zoo and Wildlife Research
  • Anhalt University of Applied Sciences
  • Ghent University
  • Max Planck Institute for extraterrestrial Physics