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Dynamic soil columns simulate Arctic redox biogeochemistry and carbon release during changes in water saturation.
Sci Rep
January 2025
Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
Thawing Arctic permafrost can induce hydrologic change and alter redox conditions, shifting the balance of soil organic matter (SOM) decomposition. There remains uncertainty about how soil saturation and redox transitions impact dissolved and gas phase carbon fluxes, and efforts to link hydrobiogeochemical processes to ecosystem-scale models are limited. This study evaluates SOM decomposition of Arctic tundra soils using column experiments, water chemistry measurements, microbial community analysis, and a PFLOTRAN reactive transport model.
View Article and Find Full Text PDFRadio-tracking urban breeding birds: The importance of native vegetation.
Ecol Appl
January 2025
Behavioral Ecology Research Group, Center for Natural Sciences, University of Pannonia, Veszprém, Hungary.
As urban areas continue to expand globally, a deeper understanding of the functioning of urban green spaces is crucial for maintaining habitats that effectively support wildlife within our cities. Cities typically harbor a wide variety of nonnative vegetation, providing limited support for insect populations. The resulting scarcity of arthropods has been increasingly linked to adverse effects at higher trophic levels, such as the reduced reproductive success of insectivorous birds in urban environments.
View Article and Find Full Text PDFInsights into the subdaily variations in methane, nitrous oxide and carbon dioxide fluxes from upland tropical tree stems.
New Phytol
January 2025
Centre of Excellence PLECO (Plants and Ecosystems), Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium.
Recent studies have shown that stem fluxes, although highly variable among trees, can alter the strength of the methane (CH) sink or nitrous oxide (NO) source in some forests, but the patterns and magnitudes of these fluxes remain unclear. This study investigated the drivers of subdaily and seasonal variations in stem and soil CH, NO and carbon dioxide (CO) fluxes. CH, NO and CO fluxes were measured continuously for 19 months in individual stems of two tree species, Eperua falcata (Aubl.
View Article and Find Full Text PDFWhat happens when you turn weed management off? A long-term appraisal of the effectiveness of Pteridium aquilinum (L.) kuhn control treatments and the role of sheep grazing.
J Environ Manage
February 2025
School of Environmental Sciences, University of Liverpool, Liverpool, L69 3GP, UK.
Long-term strategies are needed for the ecological restoration of land invaded by perennial weed species comprising of two parts: (1) control of the invasive species and (2) restoration of native vegetation meeting agricultural/conservation objectives. We investigated this within a statistically-rigorous, 28-year experiment at a site where Pteridium aquilinum had invaded an acid-grass/heathland. Where P.
View Article and Find Full Text PDFWillows (genus ) are increasingly used in operational-scale ecosystem reclamation; however, different opinions exist regarding the optimal cutting size for planting under field conditions. We compared the survival of field-planted willow cuttings sourced from upland and lowland areas with varying diameters and lengths across two growing seasons. Cuttings were grouped into 15 size classes with different diameters (0.
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