18 Works

CO2-Zertifikate für die Festlegung atmosphärischen Kohlenstoffs in Böden: Methoden, Maßnahmen und Grenzen

Martin Wiesmeier, Stefanie Mayer, Carsten Paul, Katharina Helming, Axel Don, Uwe Franko, Markus Franko & Ingrid Kögel-Knabner
Agrarböden besitzen durch den Aufbau von organsicher Bodensubstanz (Humus), die zu etwa 58% aus Kohlenstoff (Corg) besteht, ein großes Potential zur Kohlenstoffbindung. Positive Anstrengungen im Humusmanagement könnten daher einen wesentlichen Beitrag für den Klimaschutz leisten. Für Landwirtinnen und Landwirte stellen so genannte CO2-Zertifikate für den Aufbau von Corg („Humuszertifikate“) einen zusätzlichen Anreiz dar, humusfördernde Bewirtschaftungsmaßnahmen umzusetzen. Diese CO2-Zertifikate werden von privatwirtschaftlichen Initiativen und Unternehmen im Bereich des freiwilligen CO2-Markts vergeben. Insbesondere im Bereich der Landwirtschaft...

Pilzarten und ihre pflanzlichen Wirte im Klimawandel

Mika Tarkka & Jakob Hildebrandt
Viele parasitäre Baumpilze können von der Schwächung von Bäumen durch Trockenstress profitieren. Pilzsammler, die neben Mykorrhizapilzen auch parasitäre Baumpilze sammeln, mögen sich daran erfreuen. Doch ist dabei nicht zu verkennen, dass pflanzenpathogene Pilze derzeit einen starken Anpassungsdruck in Forst- und Landwirtschaft ausüben.

Trait data of European and Maghreb butterflies

Joseph Middleton Welling, Leonardo Dapporto Dapporto, Enrique García-Barros, Martin Wiemers, Piotr Nowicki, Elisa Plazio, Simona Bonelli, Michele Zaccagno, Martina Šašić, Jana Lipárová, Oliver Schweiger, Alexander Harpke, Martin Musche, Josef Settele, Reto Schmucki & Tim Shreeve
Trait-based analyses explaining the different responses of species and communities to environmental changes are increasing in frequency. European butterflies are an indicator group that responds rapidly to environmental changes with extensive citizen science contributions to documenting changes of abundance and distribution. Species traits have been used to explain long- and short-term responses to climate, land-use and vegetation changes. Studies are often characterised by limited traits sets being used, with risks that the relative roles of...

CO2 certificates for carbon sequestration in soils: methods, management practices and limitations

Martin Wiesmeier, Stefanie Mayer, Carsten Paul, Katharina Helming, Axel Don, Uwe Franko, Markus Steffens & Ingrid Kögel-Knabner

Möglicher Wahlsieg Joe Bidens. Wandel in der US-Klimapolitik?

Reimund Schwarze
Welche Auswirkungen hätte der Wahlsieg von Joe Biden auf die Klimapolitik der Vereinigten Staaten? Was ist auf nationaler, was auf internationaler Ebene zu erwarten? Ein Interview mit dem Umweltökonomen Prof. Dr. Reimund Schwarze vom Helmholtz-Zentrum für Umweltforschung in Leipzig.

Seasonal succession of functional traits in phytoplankton communities and their interaction with trophic state

Valerie Wentzky, Jörg Tittel, Christoph Jäger, Jorn Bruggeman & Karsten Rinke
1. Understanding and explaining the structure of communities in response to environmental gradients is a central goal in ecology. Trait-based approaches are promising but yet rarely applied to understand community dynamics in response to changing environmental conditions. 2. Here we investigate seasonal succession patterns of functional traits in phytoplankton communities and how nutrient reductions (oligotrophication) alter these patterns. We used phytoplankton data from 40 years of observation from the Rappbode Reservoir (Germany), which underwent a...

Data from: Life-history dimensions indicate non-random assembly processes in tropical island tree communities

Julian Schrader, Dylan Craven, Cornelia Sattler, Rodrigo Cámara-Leret, Soetjipto Moeljono & Holger Kreft
Community assembly processes on islands are often non-random. The mechanisms behind non-random assembly, however, are generally difficult to disentangle. Functional diversity in combination with a null model approach that accounts for differences in species richness among islands can be used to test for non-random assembly processes, but has been applied rarely to island communities. By linking functional diversity of trees on islands with a null model approach, we bridge this gap and test for the...

Sekundäre Rohstoffquellen. Altlast, Rohstoff oder kulturelles Erbe?

Alena Bleicher, Martin David & Henriette Rutjes
Können strategische Rohstoffe auch aus alten Bergbauhalden gewonnen werden? Die Nutzung sekundärer Rohstoffquellen könnte die Umweltbelastungen, die mit dem Bergbau einhergehen, minimieren. Eine entscheidende Voraussetzung für die Nutzung dieser Potentiale sind gesellschaftliche Interpretationsprozesse.

Assigning occurrence data to cryptic taxa improves climatic niche assessments: biodecrypt, a new tool tested on European butterflies

Leonardo Dapporto, Platania Leonardo, Mattia Menchetti, Cecília Corbella, Isaac Kay-Lavelle, Roger Vila, Martin Wiemers & Oliver Schweiger
Aim Occurrence data are fundamental to macroecology, but accuracy is often compromised when multiple units are lumped together (e.g. in recently separated cryptic species or citizen science records). Using amalgamated data leads to inaccuracy in species mapping, to biased beta-diversity assessments and to potentially erroneously predicted responses to climate change. We provide a set of R functions (biodecrypt) to objectively attribute undetermined occurrences to the most probable taxon based on a subset of identified records....

Aus dem All ein genaues Bild der Landschaft erzeugen

Sebastian Preidl, Oliver Jorzik & Dierk Spreen
Mittels dynamischen maschinellen Lernens können landwirtschaftliche Nutzflächen oder Wälder aus dem Weltall genauer kartiert werden. Das ermöglicht ein besseres nachhaltiges Management solcher Flächen.

Abundances of xylobiont beetles in the Leipzig floodplain forest 2016

Nora Haack, Ingo Brunk, Martin Schlegel, Detlef Bernhard, Klaus Henle, Annegret Grimm-Seyfarth & Christian Wirth
The dataset includes abundance data from xylobiont beetles, captured in the Leipzig floodplain forest between March and October 2016. We sampled three strata and three tree species. The strata were the understory with 2 traps, the lower canopy with 12 traps and the upper canopy with 12 traps. The 24 traps in the lower and upper canopy can further be assigned to the tree species Quercus robur, Tilia cordata and Fraxinus excelsior. Each tree was...

Data from: Abundance, origin and phylogeny of plants do not predict community-level patterns of pathogen diversity and infection

Robin Schmidt, Harald Auge, Holger Deising, Isabell Hensen, Scott Mangan, Martin Schädler, Claudia Stein & Tiffany Knight
Pathogens have the potential to shape plant community structure, and thus it is important to understand the factors that determine pathogen diversity and infection in communities. The abundance, origin and evolutionary relationships of plant hosts are all known to influence pathogen patterns, and are typically studied separately. We present an observational study that examined the influence of all three factors and their interactions on the diversity of and infection of several broad taxonomic groups of...

Trade-off between vegetation type, soil erosion control and surface water in global semi-arid regions: A meta-analysis

Gao-Lin Wu, Yi-Fan Liu, Zeng Cui, Yu Liu, Zhi-Hua Shi, Rui Yin & Paul Kardol
Soil erosion control and water resource protection can closely interact during restoration of terrestrial ecosystems. In semi‐arid ecosystems, an urgent issue is how vegetation restoration can achieve the goal of soil erosion mitigation and water conservation, which in turn, feeds back to ecosystem functioning. We reviewed 78 articles from 22 countries in semi‐arid areas to evaluate the effects of vegetation type (i.e. forest, grassland and scrubland) on runoff and sediment yields across different environmental conditions...

Data from: Movement and seasonal energetics mediate vulnerability to disturbance in marine mammal populations

Cara Gallagher, Volker Grimm, Line Kyhn, Carl Kinze & Jacob Nabe-Nielsen
In marine environments noise from human activities is increasing dramatically, causing animals to alter their behavior and forage less efficiently. These alterations incur energetic costs that can result in reproductive failure, death, and may ultimately influence population viability; yet the link between population dynamics and individual energetics is poorly understood. We present an energy budget model for simulating effects of acoustic disturbance on populations. It accounts for environmental variability and individual state, while incorporating realistic...

Moore und Klimaschutz : eine ökonomische Sicht

Bernd Hansjürgens, Christoph Schröter-Schlaack & Augustin Berghöfer
Vierzig Prozent der gesamten Klimagas-Emissionen aus der deutschen Landwirtschaft gehen von trockengelegten Mooren aus. Die damit verbundenen gesellschaftlichen Kosten sind höher als der private betriebliche Nutzen. Die Wiedervernässung unserer Moorböden würde einen großen Beitrag zum Klima- und Gewässerschutz leisten. Außerdem würden mehr als 50 landwirtschaftlich nutzbare Pflanzenarten auch auf natürlich erhaltenen Moorböden gedeihen.

Deutschland im Hitzestress. Rekordwärme trifft Rekorddürre

Susanna Mohr & Andreas Marx
Mehr heiße Tage als im Jahrhundertsommer 2003, Niedrigwasser in fast allen Flüssen und bereits 91 Prozent der deutschen Böden ausgedorrt. Das Center for Disaster Management and Risk Reduction Technology des KIT legt einen ersten Bericht zur Dürresituation in Deutschland vor. Die Wissensplattform beleuchtet einige Aspekte daraus.

Dominant native and non-native graminoids differ in key leaf traits irrespective of nutrient availability

Arthur Broadbent, Jennifer Firn, James McGree, Elizabeth Borer, Yvonne Buckley, W. Stanley Harpole, Kimberly Komatsu, Andrew MacDougall, Kate Orwin, Nicholas Ostle, Eric Seabloom, Jonathan Bakker, Lori Biedermann, Maria Caldeira, Nico Eisenhauer, Nicole Hagenah, Yann Hautier, Joslin Moore, Carla Nogueira, Pablo Peri, Anita Risch, Christiane Roscher, Martin Schuetz & Carly Stevens
Aim Nutrient enrichment is associated with plant invasions and biodiversity loss. Functional trait advantages may predict the ascendancy of invasive plants following nutrient enrichment but this is rarely tested. Here, we investigate 1) whether dominant native and non-native plants differ in important morphological and physiological leaf traits, 2) how their traits respond to nutrient addition, and 3) whether responses are consistent across functional groups. Location Australia, Europe, North America and South Africa Time period 2007...

Data from: Microclimate limits thermal behaviour favourable to disease control in a nocturnal amphibian

Wouter Beukema, Frank Pasmans, Sarah Van Praet, Francisco Ferri-Yáñez, Moira Kelly, Alexandra Laking, Jesse Erens, Jeroen Speybroeck, Kris Verheyen, Luc Lens & An Martel
While epizootics increasingly affect wildlife, it remains poorly understood how the environment shapes most host-pathogen systems. Here, we employ a three-step framework to study microclimate influence on ectotherm host thermal behaviour, focusing on amphibian chytridiomycosis in fire salamanders (Salamandra salamandra) infected with the fungal pathogen Batrachochytrium salamandrivorans (Bsal). Laboratory trials reveal that innate variation in thermal preference, rather than behavioural fever, can inhibit infection and facilitate salamander recovery under humidity-saturated conditions. Yet, a three-year field...

Registration Year

  • 2020
    18

Resource Types

  • Dataset
    10
  • Text
    8

Affiliations

  • Helmholtz Centre for Environmental Research
    18
  • Helmholtz Association of German Research Centres
    6
  • Johann Heinrich von Thünen-Institut
    2
  • German Center for Integrative Biodiversity Research
    2
  • Leibniz Centre for Agricultural Landscape Research
    2
  • Forschungsinstitut für biologischen Landbau
    2
  • University of Manchester
    2
  • Technical University of Munich
    2
  • University of Florence
    2
  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
    2