21 Works

Metabarcoding of canopy arthropods reveals negative impacts of forestry insecticides on community structure across multiple taxa

Benjamin Leroy, Sebastian Seibold, Jérôme Morinière, Vedran Bozicevic, Jessica Jaworek, Nicolas Roth, Sebastian Vogel, Sharon Zytynska, Ralf Petercord, Peter Eichel & Wolfgang Weisser
1. Insecticides used to combat outbreaks of forest defoliators can adversely affect non-target arthropods. Forest use insecticides typically suppress Lepidoptera larvae which are the keystone of the canopy community of deciduous oak forests. The abrupt removal of this dominant component of the food web could have far-reaching implications for forest ecosystems, yet it is rarely investigated in practice owing to several methodological shortcomings. The taxonomic impediment and the biased nature of arthropod sampling techniques particularly...

Data from: Carbon allocation to root exudates is maintained in mature temperate tree species under drought

Benjamin D Hafner, Melanie Brunn, Marie Jasmijn Zwetsloot, Fabian Christopher Weikl, Karin Pritsch, Kyohsuke Hikino, Nadine Ruehr, Emma Sayer & Taryn Bauerle

Competition components along productivity gradients – revisiting a classic dispute in ecology

Fabian Sauter, Harald Albrecht, Johannes Kollmann & Marion Lang
Competition is ubiquitous in plant communities with various effects on plant fitness and community structure. A long-standing debate about different approaches to explain competition is the controversy between David Tilman and Philip Grime. Grime stated that the importance of competition relative to the impact of the environment increases along a productivity gradient, while Tilman argued that the intensity of competition is independent of productivity. To revisit this controversy, we assumed that the effects of plant-plant...

Data from: Foliar herbivory creates subtle soil legacy effects that alter future herbivores via changes in plant community biomass allocation

Robin Heinen
Plants leave legacy effects in the soil they grow in, which can drive important vegetation processes, including productivity, community dynamics and species turnover. Plants at the same time also face continuous pressure posed by insect herbivores. Given the intimate interactions between plants and herbivores in ecosystems, plant identity and herbivory are likely to interactively shape soil legacies. However, the mechanisms that drive such legacy effects on future generations of plants and associated herbivores are little...

Data for Diniz et al. (2022) Changing the main course: strong bat visitation to the ornithophilous mistletoe Psittacanthus robustus (Loranthaceae) in a Neotropical savanna (Biotropica)

Ugo Mendes Diniz, Nina Fischer & Ludmilla Aguiar
The Neotropical genus Psittacanthus comprises mostly specialized ornithophilous mistletoes, with rare exceptions. Psittacanthus robustus is a common ornithophilous species from the South American savannas whose bright-yellow flowers secrete copious diluted nectar. Due to a three-day-long anthesis and a short, non-restrictive floral tube, we suggest that the species also serves as a resource for flower-visiting bats. In a Cerrado area in central Brazil, we investigated the usage of the species by bats through systematic bat captures...

Blast output from: Lost in dead wood? Environmental DNA sequencing from dead wood shows little signs of saproxylic beetles

Nathalie Winiger, Sebastian Seibold, Kay Lucek, Jörg Müller & Gernot Segelbacher
eDNA metabarcoding has become a standard method for assessing wood-inhabiting fungi and bacteria, yet determination of dead-wood-inhabiting beetles still relies on time-consuming collection of beetle specimens. We thus tested whether beetle species can be identified by eDNA sequencing of wood in a mesocosm experiment that manipulated species assemblages. Dead wood samples were taken at exit holes of beetles and DNA was extracted and analyzed using two comparative methods: (i) metabarcoding with standard arthropod primers (421...

Annual occupancy estimates for butterflies, grasshoppers and dragonflies in Bavaria (Germany), 1980-2019

Eva Katharina Engelhardt, Matthias F. Biber, Matthias Dolek, Thomas Fartmann, Axel Hochkirch, Jan Leidinger, Franz Löffler, Stefan Pinkert, Dominik Poniatowski, Johannes Voith, Michael Winterholler, Dirk Zeuss, Diana E. Bowler & Christian Hof
Recent climate and land-use changes are having substantial impacts on biodiversity, including population declines, range shifts, and changes in community composition. However, few studies have compared these impacts among multiple taxa, particularly because of a lack of standardized time series data over long periods. Existing datasets are typically of low resolution or poor coverage, both spatially and temporally, thereby limiting the inferences that can be drawn from such studies. Here, we compare climate and land-use...

Light and malaise traps tell different stories about the spatial variations in arthropod biomass and method-specific insect abundance

Annika Busse, Claus Bässler, Roland Brandl, Nicolas Friess, Hermann Hacker, Lea Heidrich, Torben Hilmers, Gisela Merkel-Wallner, Christian Schmid-Egger, Linda Seifert & Jörg Müller
1. Conclusions reached in meta-analyses of changes in insect communities may be influenced by method-specific sampling biases, which may lead to inappropriate conservation measures. 2. We argue that the contradictory conclusions regarding terrestrial insect biomass, abundance and richness patterns are, at least partly, due to methodological limitations that reflect taxon-specific responses to environmental changes. 3. In this study, light and Malaise traps were simultaneously deployed to sample insects at 52 plots in a temperate forest...

NOX5-induced uncoupling of endothelial NO synthase is a causal mechanism and theragnostic target of an age-related hypertension endotype

Harald H. H. W. Schmidt, Mahmoud H. Elbatreek, Sepideh Sadegh, Elisa Anastasi, Emre Guney, Cristian Nogales, Tim Kacprowski, Ahmed A. Hassan, Andreas Teubner, Po-Hsun Huang, Chien-Yi Hsu, Paul M. H. Schiffers, Ger M. Janssen, Pamela W. M. Kleikers, Anil Wipat, Jan Baumbach & Jo G. R. De Mey
Hypertension is the most important cause of death and disability in the elderly. In 9 out of 10 cases, the molecular cause, however, is unknown. One mechanistic hypothesis involves impaired endothelium-dependent vasodilation through reactive oxygen species (ROS) formation. Indeed, ROS forming NADPH oxidase (Nox) genes associate with hypertension, yet target validation has been negative. We re-investigate this association by molecular network analysis and identify NOX5, not present in rodents, as a sole neighbor to human...

Experimental comparison of fish mortality and injuries at innovative and conventional small hydropower plants - raw data

Melanie Mueller, Josef Knott, Joachim Pander & Juergen Geist
Resolving the controversy about hydropower is only possible based on reliable data on its ecological effects, particularly fish welfare. Herein, we propose a comprehensive assessment of conventional and innovative hydropower using a data set of 52 250 fish. The effects of hydropower on fish were most harmful at sites with Kaplan turbines, showing £ 83% mortality. Innovative hydropower, often termed ‘fish-friendly’, caused £ 64% mortality. Our findings suggested that the runner peripheral speed, number of...

What makes a good bat box? How box occupancy depends on box characteristics and landscape-level variables

Sandra Pschonny, Jan Leidinger, Wolfgang Weisser & Rudolf Leitl
Bat populations are in steep decline and presently, 16% of all species are classified as “threatened”. One main driver identified for this decline is the loss of natural roosting opportunities, caused by the removal of natural habitats. Installation of bat boxes is one solution to compensate for the lack of natural roosting opportunities. Current recommendations for box design emphasize low maintenance costs and are rarely based on empirical evidence. We investigated occupancy of 13634 bat...

Data from: Landscape diversity and local temperature, but not climate, affect arthropod predation among habitat types

Ute Fricke, Ingolf Steffan-Dewenter, Jie Zhang, Cynthia Tobisch, Sandra Rojas-Botero, Caryl S Benjamin, Jana Englmeier, Cristina Ganuza, Maria Haensel, Rebekka Riebl, Johannes Uhler, Lars Uphus, Jörg Ewald, Johannes Kollmann & Sarah Redlich
Arthropod predators are relevant for top-down regulation of insect herbivores. Biotic and abiotic factors influence predator communities and their activity with consequences for the strength of top-down regulation (‘arthropod predation’). Anthropogenic climate and land-use change urges a deeper understanding of the combined effects of potential drivers on arthropod predation. This study obtained arthropod predation rates on 113 plots of open herbaceous vegetation adjacent to different habitat types (forest, grassland, arable field, settlement) along climate and...

Data from: Plant richness, land use and temperature differently shape invertebrate leaf-chewing herbivory on plant functional groups

Ute Fricke, Sarah Redlich, Jie Zhang, Cynthia Tobisch, Sandra Rojas-Botero, Caryl S. Benjamin, Jana Englmeier, Cristina Ganuza, Rebekka Riebl, Johannes Uhler, Lars Uphus, Jörg Ewald, Johannes Kollmann & Ingolf Steffan-Dewenter
Nutrient demands of leaf-chewing invertebrate herbivores change with temperature, which causes shifts in herbivores’ diets. Temperature may act differently on herbivore species, so that factors shaping herbivore species richness may modulate temperature effects on invertebrate herbivory among plant functional groups with different nutrient composition (C:N ratio low to high: legumes, non-leguminous forbs, grasses). Global warming urges a deeper understanding of temperature effects on herbivory among plant functional groups in different habitats and landscapes. This study...

Broad-scale patterns of geographic avoidance between species emerge in the absence of fine-scale mechanisms of coexistence

Roberto Novella-Fernandez, Javier Juste, Carlos Ibanez, Hugo Rebelo, Danilo Russo, Antton Alberdi, Andreas Kiefer, Laura Graham, Patrick Doncaster, Hynek Paul & Orly Razgour
Aim: The need to forecast range shifts under future climate change has motivated an increasing interest in better understanding the role of biotic interactions in driving diversity patterns. The contribution of biotic interactions to shaping broad-scale species distributions is however, still debated, partly due to the difficulty of detecting their effects. We aim to test whether spatial exclusion between potentially competing species can be detected at the species range scale, and whether this pattern relates...

Arthropod (per year, 2008-2017) and environmental data (climate, land use, land cover) from grasslands used in \"Unravelling insect declines: can space replace time?\", Biology Letters

Michael Staab & Nico Blüthgen
To compare trends in arthropod species numbers between space and time, arthropod data from the sweep net samples (2008-2017) in grasslands were used. We tested whether trends over time are also found within single years (i.e. in space). The dataset contains, pooled per sampling year, arthropod individual numbers (Araneae, Coleoptera, Hemiptera, Orthoptera) and associated environmental data (climate, land use, land cover). This data is only to complement the publication "Unravelling insect declines: can space replace...

Zehneria neorensis: Additional phylogenies and sequence information

Vinay Ranjan, Anant Kumar, Gopal Krishna & Hanno Schaefer
Basic data and supplement for Ranjan et al. 2022, Biogeography of Zehneria (Cucurbitaceae) and a New Species from India, Systematic Botany. Zehneria is one of the most diverse genera in Cucurbitaceae with 75 accepted species mainly in Southeast Asia and tropical Africa. We describe Zehneria neorensis, a new species from Neora Valley in the mountains of West Bengal, India, which has 7–10 cm long twisted fruiting pedicels, the longest pedicels reported in the genus so...

Will forest dynamics continue to accelerate throughout the 21st century in the Northern Alps?

Dominik Thom, Werner Rammer, Patrick Laux, Gerhard Smiatek, Harald Kunstmann, Sebastian Seibold & Rupert Seidl
Observational evidence suggests that forests in the Northern Alps are changing at an increasing rate as a consequence of climate change. Yet, it remains unclear whether the acceleration of forest change will continue in the future, or whether downregulating feedbacks will eventually decouple forest dynamics from climate change. Here we studied future forest dynamics at Berchtesgaden National Park, Germany by means of a process-based forest landscape model, simulating an ensemble of 22 climate projections until...

COVID-19 lockdown measures impacted citizen science hedgehog observation numbers in Bavaria, Germany

Fabio Sweet, Thomas Rödl & Wolfgang W. Weisser
The COVID-19 pandemic has led to temporary changes in human-animal interactions due to changes in human activities. Here we report on a surge in hedgehog observations during the first COVID-19 lockdown in Germany in 2020, on the citizen science web portal ‘Igel in Bayern’ (Hedgehogs in Bavaria) in Germany. This increase in comparison to previous years could be attributed to an increase in the number of people reporting hedgehog observations, rather than an increase in...

Raw data on mortality, feeding rates, swimming behavior and energy reserves: Goetz et al 2022

Sebastian Beggel, Astrid Götz & Jürgen Geist
The abundance and persistence of plastic nanoparticles in aquatic habitats are considered a threat to marine and freshwater biota. However, the risk assessment of plastic particles is complicated due to various factors that need to be considered, including composition, size and environmental abundance. This study investigated the behavioural response of a key river species, Gammarus roeseli, to dietary exposure of plain biodegradable and non-biodegradable plastic as well as to natural small micro- and nanoparticles. Mortality,...

Rare species biodiversity, socio-demographics and local and landscape characteristics in Northern California community urban gardens

Theresa Ong, Brenda Lin, Azucena Lucatero, Hamutahl Cohen, Peter Bichier, Monika Egerer, Alana Danieu, Shalene Jha & Stacy Philpott
Cities are sometimes characterized as homogenous with species assemblages composed of abundant, generalist species having similar ecological functions. Under this assumption, rare species, or species observed infrequently, would have especially high conservation value in cities for their potential to increase functional diversity. Management to increase the number of rare species in cities could be an important conservation strategy in a rapidly urbanizing world. However, most studies of species rarity define rarity in relatively pristine environments...

Data from: A Miopetaurista (Sciuridae, Rodentia) cranium from the middle Miocene of Bavaria (Germany) and brain evolution in flying squirrels

Isaac Casanovas-Vilar, Montserrat Grau-Camats, Ornella C. Bertrand, Jérôme Prieto, Sergi López-Torres & Mary Silcox
Flying squirrels (Sciurinae, Pteromyini) are the most successful group of gliding mammals. However, their fossil record mostly consists of isolated dental remains which provide very limited insights into their paleobiology and evolution. Only recently, the first skeleton of a fossil flying squirrel, belonging to the species Miopetaurista neogrivensis, has been described. It presents all the diagnostic gliding-related postcranial features of its extant relatives and shows that this group has undergone very little morphological change for...

Registration Year

  • 2022
    21

Resource Types

  • Dataset
    21

Affiliations

  • Technical University of Munich
    17
  • University of Würzburg
    5
  • Technical University Munich
    5
  • Weihenstephan-Triesdorf University of Applied Sciences
    2
  • Philipp University of Marburg
    2
  • University of Bayreuth
    2
  • Karlsruhe Institute of Technology
    2
  • Friedrich Schiller University Jena
    2
  • Estación Biológica de Doñana
    1
  • Hannover Medical School
    1