Search Results - "Peter Casper"

Eutrophication exacerbates the impact of climate warming on lake methane emission by Sepulveda-Jauregui, Armando, Hoyos-Santillan, Jorge, Martinez-Cruz, Karla, Walter Anthony, Katey M., Casper, Peter, Belmonte-Izquierdo, Yadira, Thalasso, Frédéric

“…Net methane (CH4) emission from lakes depends on two antagonistic processes: CH4 production (methanogenesis) and CH4 oxidation (methanotrophy). It is unclear…”
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DNA-, rRNA- and mRNA-based stable isotope probing of aerobic methanotrophs in lake sediment by Dumont, Marc G., Pommerenke, Bianca, Casper, Peter, Conrad, Ralf

“…Summary A stable isotope probing (SIP) approach was used to study aerobic methane‐oxidizing bacteria (methanotrophs) in lake sediment. Oligotrophic Lake…”
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Enhancing Surface Methane Fluxes from an Oligotrophic Lake: Exploring the Microbubble Hypothesis by McGinnis, Daniel F, Kirillin, Georgiy, Tang, Kam W, Flury, Sabine, Bodmer, Pascal, Engelhardt, Christof, Casper, Peter, Grossart, Hans-Peter

“…Exchange of the greenhouse gases carbon dioxide (CO2) and methane (CH4) across inland water surfaces is an important component of the terrestrial carbon (C)…”
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Characterization of Stable Isotope Fractionation during Methane Production in the Sediment of a Eutrophic Lake, Lake Dagow, Germany by Conrad, Ralf, Clans, Peter, Casper, Peter

“…We measured δ¹³C of CO₂, CH₄, and acetate-methyl in profundal sediment of eutrophic Lake Dagow by incubation experiments in the presence and absence of…”
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Shifts among Eukaryota, Bacteria, and Archaea define the vertical organization of a lake sediment by Wurzbacher, Christian, Fuchs, Andrea, Attermeyer, Katrin, Frindte, Katharina, Grossart, Hans-Peter, Hupfer, Michael, Casper, Peter, Monaghan, Michael T

“…Lake sediments harbor diverse microbial communities that cycle carbon and nutrients while being constantly colonized and potentially buried by organic matter…”
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Carbon Isotope Fractionation during Acetoclastic Methanogenesis by Methanosaeta concilii in Culture and a Lake Sediment by Penning, Holger, Claus, Peter, Casper, Peter, Conrad, Ralf

“…The isotope enrichment factors (ε) in Methanosaeta concilii and in a lake sediment, where acetate was consumed only by Methanosaeta spp., were clearly less…”
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Assessing the effect of litter species on the dynamic of bacterial and fungal communities during leaf decomposition in microcosm by molecular techniques by Xu, Wenjing, Shi, Lingling, Chan, Onchim, Li, Jiao, Casper, Peter, Zou, Xiaoming

“…Although bacteria and fungi are well-known to be decomposers of leaf litter, few studies have examined their compositions and diversities during the…”
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Vertical distribution of structure and function of the methanogenic archaeal community in Lake Dagow sediment by Chan, On Chim, Claus, Peter, Casper, Peter, Ulrich, Andreas, Lueders, Tillmann, Conrad, Ralf

“…Summary Detailed studies on the relation of structure and function of microbial communities in a sediment depth profile scarcely exist. We determined as…”
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The importance of landscape diversity for carbon fluxes at the landscape level: small‐scale heterogeneity matters by Premke, Katrin, Attermeyer, Katrin, Augustin, Jürgen, Cabezas, Alvaro, Casper, Peter, Deumlich, Detlef, Gelbrecht, Jörg, Gerke, Horst H., Gessler, Arthur, Grossart, Hans‐Peter, Hilt, Sabine, Hupfer, Michael, Kalettka, Thomas, Kayler, Zachary, Lischeid, Gunnar, Sommer, Michael, Zak, Dominik

“…Landscapes can be viewed as spatially heterogeneous areas encompassing terrestrial and aquatic domains. To date, most landscape carbon (C) fluxes have been…”
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Presence of potential toxin-producing cyanobacteria in an oligo-mesotrophic lake in Baltic Lake District, Germany: an ecological, genetic and toxicological survey by Dadheech, Pawan K, Selmeczy, Géza B, Vasas, Gábor, Padisák, Judit, Arp, Wolfgang, Tapolczai, Kálmán, Casper, Peter, Krienitz, Lothar

“…Massive developments of potentially toxic cyanobacteria in Lake Stechlin, an oligo-mesotrophic lake in the Baltic Lake District of Germany raised concerns…”
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Fluxes of Methane and Carbon Dioxide from a Small Productive Lake to the Atmosphere by Casper, Peter, Maberly, Stephen C., Hall, Grahame H., Finlay, Bland J.

“…The fluxes of CH4 and CO2 to the atmosphere, and the relative contributions of ebullition and molecular diffusion, were determined for a small hypertrophic…”
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Greenhouse gas emissions from a semi-arid tropical reservoir in northeastern Brazil by Rodriguez, Maricela, Casper, Peter

“…We estimated carbon dioxide (CO 2 ) and methane (CH 4 ) emissions by diffusion, ebullition, and degassing in turbines from a semi-arid hydropower reservoir in…”
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Ubiquitous and significant anaerobic oxidation of methane in freshwater lake sediments by Martinez-Cruz, Karla, Sepulveda-Jauregui, Armando, Casper, Peter, Anthony, Katey Walter, Smemo, Kurt A., Thalasso, Frederic

“…Anaerobic oxidation of methane (AOM) is a microbial process that consumes dissolved methane (CH4) in anoxic sediments and soils and mitigates CH4 release to…”
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Different methods for extracting bacteria from freshwater sediment and a simple method to measure bacterial production in sediment samples by dos Santos Furtado, André Luiz, Casper, Peter

“…The efficiency of different treatments was tested to extract bacterial cells from freshwater sediment samples. The influence of sonication, density gradient…”
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Spatial methane pattern in a deep freshwater lake: Relation to water depth and topography by Li, Lingling, Fuchs, Andrea, Ortega, Sonia Herrero, Xue, Bin, Casper, Peter

“…Freshwater lakes are regarded as important methane (CH4) sources, accounting for ~20% of natural emission. To improve the assessment of the global greenhouse…”
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Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint by Herrero Ortega, Sonia, Romero González‐Quijano, Clara, Casper, Peter, Singer, Gabriel A., Gessner, Mark O.

“…Global urbanization trends impose major alterations on surface waters. This includes impacts on ecosystem functioning that can involve feedbacks on climate…”
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Long‐term phytoplankton community dynamics in Lake Stechlin (north‐east Germany) under sudden and heavily accelerating eutrophication by Kröger, Björn, Selmeczy, Géza B., Casper, Peter, Soininen, Janne, Padisák, Judit

“…Climate warming and legacy phosphorus (P) in sediments are two main factors counteracting current efforts to prevent eutrophication of temperate freshwater…”
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Geochemical focusing and sequestration of manganese during eutrophication of Lake Stechlin (NE Germany) by Scholtysik, Grzegorz, Dellwig, Olaf, Roeser, Patricia, Arz, Helge Wolfgang, Casper, Peter, Herzog, Christiane, Goldhammer, Tobias, Hupfer, Michael

“…Significant sedimentation of manganese (Mn) in form of manganese oxides (MnOₓ) and the subsequent formation of authigenic calcium-rich rhodochrosite (Mn (Ca)…”
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Cover Image by Sepulveda‐Jauregui, Armando, Martinez‐Cruz, Karla, Lau, Maximilian, Casper, Peter

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Using stable isotope probing to obtain a targeted metatranscriptome of aerobic methanotrophs in lake sediment by Dumont, Marc G., Pommerenke, Bianca, Casper, Peter

“…Summary In this study, we demonstrate the possibility of obtaining a targeted metatranscriptome from a functional group of microorganisms using a stable…”
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