TY - GEN A1 - Wonner, Tamara A1 - Oprei, Anna A1 - Mutz, Michael A1 - Risse-Buhl, Ute T1 - Is the epipsammic community modulated by trajectory of historic or current sediment shifting? T2 - Ergebnisse der Jahrestagung 2019 in Münster KW - Microbial communities Y1 - 2020 UR - https://www.dgl-ev.de/cms/upload/dokumente/Publikationen/2020__DGL_Ergebnisse_Muenster_2019_web.pdf SN - 978-3-9818302-4-8 SP - 418 PB - Eigenverlag der DGL CY - Essen ER - TY - GEN A1 - Scheidweiler, David A1 - Mendoza-Lera, Clara A1 - Mutz, Michael A1 - Risse-Buhl, Ute T1 - Overlooked Implication of Sediment Transport at Low Flow: Migrating Ripples Modulate Streambed Phototrophic and Heterotrophic Microbial Activity T2 - Water Resources Research KW - microbial communities Y1 - 2021 U6 - https://doi.org/10.1029/2020WR027988 SN - 1944-7973 VL - 57 IS - 3 ER - TY - GEN A1 - Kryvokhyzhyna, Mariia A1 - Majdi, Nabil A1 - Oprei, Anna A1 - Mutz, Michael A1 - Risse-Buhl, Ute T1 - Response of meiobenthos to migrating ripples in sandy lowland streams T2 - Hydrobiologia KW - Sediment transport KW - Community structure KW - Benthic invertebrates Y1 - 2022 UR - https://link.springer.com/content/pdf/10.1007/s10750-022-04836-6.pdf U6 - https://doi.org/10.1007/s10750-022-04836-6 SN - 0018-8158 VL - 849 IS - 8 SP - 1905 EP - 1921 ER - TY - GEN A1 - Risse-Buhl, Ute A1 - Oprei, Anna A1 - Mutz, Michael T1 - Migrating streambeds – ecological and biogeochemical consequences of fine sediment transport T2 - Deutsche Gesellschaft für Limnologie e.V., Ergebnisse der Jahrestagung in Leipzig 2021 KW - Running waters ecosystems Y1 - 2022 UR - https://www.dgl-ev.de/publikationen/dgl-tagungsbaende/tagungsberichte.html SN - 978-3-9818302-6-2 SP - 192 PB - Eigenverlag der DGL CY - Essen ER - TY - GEN A1 - Schreckinger, José A1 - Mutz, Michael A1 - Franzmann, Insa A1 - Risse-Buhl, Ute T1 - Light or mechanics: What drives phototrophic and heterotrophic microbial activity in sandy sediments? T2 - Deutsche Gesellschaft für Limnologie e.V., Ergebnisse der Jahrestagung in Leipzig 2021 KW - migrating ripples Y1 - 2022 UR - https://www.dgl-ev.de/publikationen/dgl-tagungsbaende/tagungsberichte.html SN - 978-3-9818302-6-2 SP - 206 PB - Eigenverlag der DGL CY - Essen ER - TY - GEN A1 - Risse-Buhl, Ute A1 - Oprei, Anna A1 - Mutz, Michael T1 - Streambed migration frequency drives ecology and biogeochemistry across spatial scales T2 - WIREs Water KW - benthic and hyporheic communities KW - environmental filtering Y1 - 2023 U6 - https://doi.org/10.1002/wat2.1632 SN - 2049-1948 VL - 10 IS - 3 ER - TY - GEN A1 - Oprei, Anna A1 - Schreckinger, Jose A1 - Franzmann, Insa A1 - Lee, Hayoung A1 - Mutz, Michael A1 - Risse-Buhl, Ute T1 - Light over mechanics: microbial community structure and activity in simulated migrating bedforms are controlled by oscillating light rather than by mechanical forces T2 - FEMS Microbiology Ecology KW - community structure KW - light oscillation KW - metabolism Y1 - 2024 U6 - https://doi.org/10.1093/femsec/fiae073 SN - 0168-6496 SN - 1574-6941 VL - 100 IS - 6 ER - TY - GEN A1 - Oprei, Anna A1 - Schreckinger, José A1 - Mutz, Michael A1 - Kamjunke, Norbert A1 - Worrich, Anja A1 - Risse-Buhl, Ute T1 - Migrating ripples create streambed heterogeneity altering microbial diversity and metabolic activity T2 - Limnology and Oceanography KW - Sandy sediments KW - lowland streams Y1 - 2024 UR - https://aslopubs.onlinelibrary.wiley.com/journal/19395590 U6 - https://doi.org/10.1002/lno.12631 SN - 1939-5590 SN - 0024-3590 VL - 69 IS - 8 SP - 1882 EP - 1899 ER - TY - GEN A1 - Oprei, Anna A1 - Schreckinger, José A1 - Kholiavko, Tatiana A1 - Frossard, Aline A1 - Mutz, Michael A1 - Risse-Buhl, Ute T1 - Long-term functional recovery and associated microbial community structure after sediment drying and bedform migration T2 - Frontiers in Ecology and Evolution N2 - Climate change and erosion from agricultural areas cause increased drying periods and bedform migration of riverbeds, respectively, worldwide. Both sediment drying and bedform migration can independently stress the microbial community residing in the riverbed. Here, we investigated the microbial response after exposure to these stressors with a focus on long-term recovery. We conducted an in situ experiment to investigate the long-term (8 months) functional and structural recovery of benthic microbial communities from either sediment drying (episodic severe stressor) or bedform migration (frequent moderate stressor). Stressed sediment associated communities were rewetted (dried sediments) and immobilized (migrated sediments) and exposed in the River Spree (north-eastern Germany) to initiate the recovery process. We then evaluated the microbial function (community respiration, net community production and extracellular enzymatic activities) as well as the bacterial, fungal and diatom community structure (16S rRNA gene and ITS region metabarcoding, and microscopic diatom morphotype classification). We observed different recovery times for community respiration (less than 7 days) and gross primary production (more than 5 months), implying a shift toward net heterotrophy in the first few months after stress exposure. Similarly, we observed a strong autotrophic community response (particularly associated with the diatoms Navicula and Fragilaria), especially in migrated sediments. The bacterial and fungal community response to sediment drying was stronger than to bedform migration (particularly associated with the bacterium Flavobacterium and the fungi Alternaria sp. and Aureobasidium pullulans). Our results show that sediment drying and bedform migration had a significant impact on the microbial community function and structure, which persisted for several months after the stress. Due to the surprising long period of recovery, successive stress events combined with seasonal effects will likely hamper the ongoing recovery process with severe alterations to the microbial function and structure. These findings extend the concept of ecosystem resilience and stability on the dimensions of timescale and seasonal environmental variations. Legacy effects are expected to play a key role when facing future stress. Y1 - 2023 UR - https://www.frontiersin.org/articles/10.3389/fevo.2023.1112519/full U6 - https://doi.org/10.3389/fevo.2023.1112519 SN - 2296-701X VL - Vol. 11 ER - TY - GEN A1 - Risse-Buhl, Ute A1 - Hagedorn, Frank A1 - Dümig, Alexander A1 - Gessner, Mark O. A1 - Schaaf, Wolfgang A1 - Nii-Annang, Seth A1 - Gerull, Linda A1 - Mutz, Michael T1 - Dynamics, chemical properties and bioavailability of DOC in an early successional catchment T2 - Biogeosciences Y1 - 2013 U6 - https://doi.org/doi:10.5194/bg-10-4751-2013 SN - 1726-4189 VL - 10 SP - 4751 EP - 4765 ER - TY - CHAP A1 - Risse-Buhl, Ute A1 - Nii-Annang, Seth A1 - Hagedorn, Frank A1 - Schaaf, Wolfgang A1 - Dümig, Alexander A1 - Schloter, Michael A1 - Gessner, Mark O. A1 - Mutz, Michael T1 - Can old organic carbon drive microbial activity in surface waters of a newly created landscape? T2 - Structures and processes of the initial ecosystem development, 1st International Conference assoc. with 4th Meeting of Young Researchers in Earth Sciences (MYRES), 20-24 Sept. 2010, Cottbus, Germany Y1 - 2010 SP - S. 93 PB - BTU CY - Cottbus ER -