A mechanistic model of functional response provides new insights into indirect interactions among arctic tundra prey.
Sign Up to like & getrecommendations! Published in 2022 at "Ecology"
DOI: 10.1002/ecy.3734
Abstract: Prey handling processes are considered a dominant mechanism leading to short-term positive indirect effects between prey that share a predator. However, a growing body of research indicates that predators are not necessarily limited by such… read more here.
Keywords: arctic tundra; among arctic; positive indirect; functional response ... See more keywords
Attenuation of Methane Oxidation by Nitrogen Availability in Arctic Tundra Soils.
Sign Up to like & getrecommendations! Published in 2023 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c05228
Abstract: CH4 emission in the Arctic has large uncertainty due to the lack of mechanistic understanding of the processes. CH4 oxidation in Arctic soil plays a critical role in the process, whereby removal of up to… read more here.
Keywords: oxidation; arctic tundra; ch4; ch4 oxidation ... See more keywords
Winter Ecosystem Respiration and Sources of CO2 From the High Arctic Tundra of Svalbard: Response to a Deeper Snow Experiment
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Geophysical Research"
DOI: 10.1029/2018jg004396
Abstract: Currently, there is a lack of understanding on how the magnitude and sources of carbon (C) emissions from High Arctic tundra are impacted by changing snow cover duration and depth during winter. Here we investigated… read more here.
Keywords: winter; respiration; deeper snow; high arctic ... See more keywords
Plant Uptake Offsets Silica Release From a Large Arctic Tundra Wildfire
Sign Up to like & getrecommendations! Published in 2019 at "Earth's Future"
DOI: 10.1029/2019ef001149
Abstract: Rapid climate change at high latitudes is projected to increase wildfire extent in tundra ecosystems by up to fivefold by the end of the century. Tundra wildfire could alter terrestrial silica (SiO2) cycling by restructuring… read more here.
Keywords: silica; wildfire; tundra wildfire; arctic tundra ... See more keywords
Applying terrestrial lidar for evaluation and calibration of airborne lidar-derived shrub biomass estimates in Arctic tundra
Sign Up to like & getrecommendations! Published in 2017 at "Remote Sensing Letters"
DOI: 10.1080/2150704x.2016.1246770
Abstract: ABSTRACT Monitoring of climate-driven expansion of low-stature shrubs in Arctic tundra can be improved through application of high-resolution remote sensing. However, the destructive nature of harvest sampling that is usually performed for validation of these… read more here.
Keywords: biomass; derived shrub; biomass estimates; shrub biomass ... See more keywords
21st century tundra shrubification could enhance net carbon uptake of North America Arctic tundra under an RCP8.5 climate trajectory
Sign Up to like & getrecommendations! Published in 2018 at "Environmental Research Letters"
DOI: 10.1088/1748-9326/aabf28
Abstract: Author(s): Mekonnen, ZA; Riley, WJ; Grant, RF | Abstract: © 2018 The Author(s). Published by IOP Publishing Ltd. Recent observed shifts in Arctic tundra shrub cover have uncertain impacts on 21st century net ecosystem carbon… read more here.
Keywords: carbon; tundra; 21st century; arctic tundra ... See more keywords
Mapping Surface Organic Soil Properties in Arctic Tundra Using C-Band SAR Data
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2023.3236117
Abstract: Surface soil organic carbon (SOC) content is among the first-order controls on the rate and extent of Arctic permafrost thaw. There is a large discrepancy in current SOC estimates in Arctic tundra, where sparse measurements… read more here.
Keywords: arctic tundra; sar data; surface; soc ... See more keywords
Sensitivity of Multifrequency Polarimetric SAR Data to Postfire Permafrost Changes and Recovery Processes in Arctic Tundra
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2021.3125715
Abstract: We used full-polarimetric L-band and P-band synthetic aperture radar (SAR) data collected from the recent NASA Arctic Boreal Vulnerability Experiment (ABoVE) airborne campaign and Sentinel-1 C-band dual-polarization data to understand the sensitivity of radar backscatter… read more here.
Keywords: arctic tundra; sar data; backscatter; burned areas ... See more keywords
Peak season carbon exchange shifts from a sink to a source following 50+ years of herbivore exclusion in an Arctic tundra ecosystem
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Ecology"
DOI: 10.1111/1365-2745.12654
Abstract: Summary To date, the majority of our knowledge regarding the impacts of herbivory on arctic ecosystem function has been restricted to short-term ( read more here.
Keywords: carbon; term; tundra; ecosystem ... See more keywords
Will borealization of Arctic tundra herbivore communities be driven by climate warming or vegetation change?
Sign Up to like & getrecommendations! Published in 2021 at "Global change biology"
DOI: 10.1111/gcb.15910
Abstract: Poleward shifts in species distributions are expected and frequently observed with a warming climate. In Arctic ecosystems, the strong warming trends are associated with increasing greenness and shrubification. Vertebrate herbivores have the potential to limit… read more here.
Keywords: herbivore communities; tundra; community; vegetation ... See more keywords