@misc{FrossardGerullMutzetal., author = {Frossard, Aline and Gerull, Linda and Mutz, Michael and Gessner, Mark O.}, title = {Shifts in microbial community structure and function in stream sediments during experimentally simulated riparian succession}, series = {FEMS Microbiology Ecology}, volume = {84}, journal = {FEMS Microbiology Ecology}, number = {2}, issn = {0168-6496}, doi = {10.1111/1574-6941.12072}, pages = {398 -- 410}, language = {en} } @incollection{MutzGessnerFrossardetal., author = {Mutz, Michael and Gessner, Mark O. and Frossard, Aline and Gerull, Linda}, title = {C transformation and C accumulation during initial stream succession}, series = {Structures and processes of the initial ecosystem development phase in an artificial water catchment : Final report CRC/TR 38}, booktitle = {Structures and processes of the initial ecosystem development phase in an artificial water catchment : Final report CRC/TR 38}, editor = {H{\"u}ttl, Reinhard F. and K{\"o}gel-Knabner, Ingrid and Schulin, Rainer and Gerwin, Werner}, publisher = {Brandenburg Univ. of Technology}, address = {Cottbus}, isbn = {1867-7800}, url = {http://nbn-resolving.de/nbn:de:kobv:co1-opus-28658}, pages = {77 -- 88}, language = {en} } @misc{FrossardGerullMutzetal., author = {Frossard, Aline and Gerull, Linda and Mutz, Michael and Gessner, Mark O.}, title = {Fungal importance extends beyond litter decomposition in experimental early-successional streams}, series = {Environmental Microbiology}, volume = {14}, journal = {Environmental Microbiology}, number = {11}, issn = {1462-2920}, doi = {10.1111/j.1462-2920.2012.02865.x}, pages = {2971 -- 2983}, language = {en} } @misc{FrossardGerullMutzetal., author = {Frossard, Aline and Gerull, Linda and Mutz, Michael and Gessner, Mark O.}, title = {Disconnect of microbial structure and function: enzyme activities and bacterial communities in nascent stream corridors}, series = {The ISME Journal}, volume = {6}, journal = {The ISME Journal}, issn = {1751-7362}, doi = {10.1038/ismej.2011.134}, pages = {680 -- 691}, language = {en} } @misc{GerullFrossardGessneretal., author = {Gerull, Linda and Frossard, Aline and Gessner, Mark O. and Mutz, Michael}, title = {Variability of heterotrophic metabolism in small stream corridors of an early successional watershed}, series = {Journal of Geophysical Research: Biogeosciences}, volume = {116}, journal = {Journal of Geophysical Research: Biogeosciences}, number = {G2}, issn = {2169-8961}, doi = {10.1029/2010JG001516}, language = {en} } @misc{GerullFrossardGessneretal., author = {Gerull, Linda and Frossard, Aline and Gessner, Mark O. and Mutz, Michael}, title = {Effects of shallow and deep sediment disturbance on whole-stream metabolism in experimental sand-bed flumes}, series = {Hydrobiologia}, volume = {683}, journal = {Hydrobiologia}, number = {1}, issn = {0018-8158}, doi = {10.1007/s10750-011-0968-x}, pages = {297 -- 310}, language = {en} } @phdthesis{Gerull, author = {Gerull, Linda}, title = {Dynamics of microbial metabolic activities during stream ecosystem succession : insights from field observations and flume experiments}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-23500}, pages = {142}, language = {en} } @misc{RisseBuhlHagedornDuemigetal., author = {Risse-Buhl, Ute and Hagedorn, Frank and D{\"u}mig, Alexander and Gessner, Mark O. and Schaaf, Wolfgang and Nii-Annang, Seth and Gerull, Linda and Mutz, Michael}, title = {Dynamics, chemical properties and bioavailability of DOC in an early successional catchment}, series = {Biogeosciences Discussion}, volume = {10}, journal = {Biogeosciences Discussion}, number = {1}, issn = {1810-6285}, pages = {1011 -- 1049}, language = {en} } @misc{RisseBuhlHagedornDuemigetal., author = {Risse-Buhl, Ute and Hagedorn, Frank and D{\"u}mig, Alexander and Gessner, Mark O. and Schaaf, Wolfgang and Nii-Annang, Seth and Gerull, Linda and Mutz, Michael}, title = {Dynamics, chemical properties and bioavailability of DOC in an early successional catchment}, series = {Biogeosciences}, volume = {10}, journal = {Biogeosciences}, issn = {1726-4189}, doi = {doi:10.5194/bg-10-4751-2013}, pages = {4751 -- 4765}, language = {en} } @inproceedings{RisseBuhlHagedornDuemigetal., author = {Risse-Buhl, Ute and Hagedorn, Frank and D{\"u}mig, Alexander and Gessner, Mark O. and Schaaf, Wolfgang and Nii-Annang, Seth and Gerull, Linda and Mutz, Michael}, title = {Dynamics, chemical properties and bioavailability of DOC in an early successional catchment}, series = {Gf{\"O} 43rd Annual Meeting, Building bridges in ecology, linking systems, scales and disciplines, September 9 to 13, 2013, Potsdam, Germany}, booktitle = {Gf{\"O} 43rd Annual Meeting, Building bridges in ecology, linking systems, scales and disciplines, September 9 to 13, 2013, Potsdam, Germany}, editor = {Jeltsch, Florian and Joshi, Jasmin}, publisher = {Gesellschaft f{\"u}r {\"O}kologie}, address = {Berlin}, pages = {S. 377}, abstract = {The dynamics of dissolved organic carbon (DOC) have been intensively studied in mature ecosystems, but little is known about DOC dynamics and the significance of DOC as a substrate for microbial activity in early-successional catchments. We determined the concentration, chemical composition, radiocarbon age, and bioavailability of DOC along the hydrological flow path from soil solution to a downstream pond in a recently constructed catchment (Chicken Creek Catchment, Germany). Soil solution, upwelling ground water, subsurface water in an alluvial fan, and pond water all had high DOC concentrations (averaged 6.0 - 11.6 mg DOC L-1), despite small carbon stocks in either vegetation or soil of the catchment. The mean 14C age of DOC in upwelling ground water was 2600 to 2800 years. Solid-state CPMAS 13C NMR revealed a higher proportion of aromatic compounds (32\%) and a lower proportion of carbohydrates (33\%) in upwelling ground water compared to pond water (18\% and 45\%, respectively). 14C age and 13C NMR spectra suggest that DOC was partly mobilized from charred organic matter inherent in the Quaternary substrate. In a 70-days incubation experiment, 20\% of the total DOC was found to be bioavailable, irrespective of the water type. Origin of the microbial communities within the catchment (enriched from soil, stream sediment or pond water) had only marginal effects on overall DOC utilization. Overall, our data suggest that both recent and old DOC support microbial activity during early ecosystem succession, although a large fraction of the DOC is recalcitrant and eventually exported from the catchment once it has been mobilized.}, language = {en} }