10 Works

Data from: Genetic diversity in a long-lived mammal is explained by the past’s demographic shadow and current connectivity

Lisa Lehnen, Pierre-Loup Jan, Anne-Laure Besnard, Damien Fourcy, Gerald Kerth, Martin Biedermann, Pierrette Nyssen, Wigbert Schorcht, Eric Petit & Sébastien Puechmaille
Within-species genetic diversity is crucial for the persistence and integrity of populations and ecosystems. Conservation actions require an understanding of factors influencing genetic diversity, especially in the context of global change. Both population size and connectivity are factors greatly influencing genetic diversity; the relative importance of these factors can however change through time. Hence, quantifying the degree to which population size or genetic connectivity are shaping genetic diversity, and at which ecological time scale (past...

Expression levels and activities of energy-yielding ATPases in the oligohaline neritid snail Theodoxus fluviatilis under changing environmental salinities

Jan Knobloch, Jan-Peter Hildebrandt & Christian Müller
The aquatic gastropod Theodoxus fluviatilis occurs in Europe and adjacent areas of Asia. The snail species has formed two genetically closely related subgroups, the freshwater ecotype (FW) and the brackish water ecotype (BW). Other than individuals of the FW ecotype, those of the BW ecotype survive in salinities of up to 28‰. Coastal aquatic ecosystems may be affected by climate change due to salinization. Thus, we investigated how the two Theodoxus ecotypes adjust to changes...

Data from: Potentially peat-forming biomass of fen sedges increases with increasing nutrient levels

Tjorven Hinzke, Guixiang Li, Franziska Tanneberger, Elke Seeber, Camiel Aggenbach, Jelena Lange, Łukasz Kozub, Klaus-Holger Knorr, Juergen Kreyling & Wiktor Kotowski
Peat formation is a key carbon sequestration process in the terrestrial biosphere. In temperate fens, peat is mainly formed by below-ground biomass of vascular plants. Nutrient availability in temperate fens is naturally variable, and nowadays increasing due to atmospheric deposition, runoff from agriculture, and mineralization of peat caused by drainage. To maintain or restore peat formation, it is important to understand how increased nutrient availability influences the main controls of peat formation, i.e., below-ground biomass...

Population genetics as a tool to elucidate pathogen reservoirs: Lessons from Pseudogymnoascus destructans, the causative agent of White-Nose disease in bats

Nicola Fischer, Andrea Altewischer, Surendra Ranpal, Serena Dool, Gerald Kerth & Sébastien Puechmaille
Emerging infectious diseases pose a major threat to human, animal, and plant health. The risk of species-extinctions increases when pathogens can survive in the absence of the host. Environmental reservoirs can facilitate this. However, identifying such reservoirs and modes of infection is often highly challenging. In this study, we investigated the presence and nature of an environmental reservoir for the ascomycete fungus Pseudogymnoascus destructans, the causative agent of White-Nose disease. Using 18 microsatellite markers, we...

Long-term study shows that increasing body size in response to warmer summers is associated with a higher mortality risk in a long-lived bat species

Carolin Mundinger, Alexander Scheuerlein & Gerald Kerth
Change in body size is one of the universal responses to global warming, with most species becoming smaller. While small size in most species corresponds to low individual fitness, small species typically show high population growth rates in cross-species comparisons. It is unclear, there- fore, how climate-induced changes in body size ultimately affect population persistence. Unravelling the relationship between body size, ambient temperature and individual survival is especially important for the conservation of endangered long-lived...

Population-specific responses of an insect herbivore to variation in host-plant quality

Josephine Kuczyk, Ange Raharivololoniaina & Klaus Fischer
Anthropogenic climate change poses a substantial challenge to many organisms, to which they need to respond to avoid fitness reductions. Investigating responses to environmental change is particularly interesting in herbivores, as they are potentially affected by indirect effects mediated via variation in host-plant quality. We here use the herbivorous insect Pieris napi to investigate geographic variation in the response to variation in food quality. We performed a common garden experiment using replicated populations from Germany...

Data for: Growing faster, longer or both? Modelling plastic response of Juniperus communis growth phenology to climate change

Jan Tumajer, Allan Buras, Jesús Julio Camarero, Marco Carrer, Rohan Shetti, Martin Wilmking, Jan Altman, Gabriel Sangüesa-Barreda & Jiří Lehejček
Aim: Plant growth and phenology plastically respond to changing climatic conditions both in space and time. Species-specific levels of growth plasticity determine biogeographical patterns and the adaptive capacity of species to climate change. However, a direct assessment of spatial and temporal variability in radial-growth dynamics is complicated, as long records of cambial phenology do not exist. Location: 16 sites across European distribution margins of Juniperus communis L. (the Mediterranean, the Arctic, the Alps and the...

Phylogenetic diversity rankings in the face of extinctions: The robustness of the fair proportion index

Mareike Fischer, Andrew Francis & Kristina Wicke
Planning for the protection of species often involves difficult choices about which species to prioritize, given constrained resources. One way of prioritizing species is to consider their "evolutionary distinctiveness'', i.e. their relative evolutionary isolation on a phylogenetic tree. Several evolutionary isolation metrics or phylogenetic diversity indices have been introduced in the literature, among them the so-called Fair Proportion index (also known as the "evolutionary distinctiveness" score). This index apportions the total diversity of a tree...

Rewetting does not return drained fen peatlands to their old selves

Juergen Kreyling, Franziska Tanneberger, Florian Jansen, Sebastian Van Der Linden, Camiel Aggenbach, Volker Blüml, John Couwenberg, Willem-Jan Emsens, Hans Joosten, Agatha Klimkowska, Wiktor Kotowski, Lukasz Kozub, Bernd Lennartz, Yvonne Liczner, Haojie Liu, Dierk Michaelis, Claudia Oehmke, Karsten Parakenings, Elisabeth Pleyl, Arne Poyda, Stefanie Raabe, Markus Röhl, Kirsten Rücker, Anett Schneider, Joachim Schrautzer … & Gerald Jurasinski
Peatlands, in particular groundwater-fed fens of the temperate zone, have been drained for agriculture, forestry and peat extraction for a long time and on a large scale. Drainage turns peatlands from a carbon and nutrient sink into a respective source, diminishes water regulation capacity at the landscape scale, causes continuous surface height loss and destroys their typical biodiversity. Over the last decades, drained peatlands have been rewetted for biodiversity restoration and, as it strongly decreases...

2013 Simulated EnMAP Mosaics for the Santa Barbara region, USA

Akpona Okujeni, Sam Cooper, Karl Segl, Sebastian van der Linden & Patrick Hostert
This dataset is composed of three-season simulated EnMAP mosaics for the Santa Barbara region, USA. HyspIRI Airborne Campaign AVIRIS imagery from spring, summer and fall formed the basis for simulating EnMAP data with 30 m spatial resolution and 195 spectral bands ranging from 420 to 2450 nm. The mosaics are provided as Analysis-Ready-Datasets (tiled surface reflectance products) to be used for regional-scale and multi-season hyperspectral image analysis of California’s diverse ecoregions. The dataset primarily intends...

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  • 2021

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  • University of Greifswald
  • University of Antwerp
  • Humboldt-Universität zu Berlin
  • University of Warsaw
  • University of Padua
  • Verein für Umweltmanagement und Nachhaltigkeit in Finanzinstituten
  • University of Münster
  • The Ohio State University
  • Aarhus University
  • University of Valladolid