Results 21 to 30 of about 83,284 (295)
Arctic Science, 2017 Retrogressive thaw slumps (RTS) are permafrost disturbances common on the Fosheim Peninsula, Ellesmere Island, Canada. During the 2013 growing season, three different RTS were studied to investigate the impact on vegetation composition, soil, and growing
Alison E. Cassidy +2 more
doaj +1 more source
Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter [PDF]
, 2015 During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites.
Derksen, Chris +7 more
core +1 more source
Winter Ecosystem Respiration and Sources of CO2 From the High Arctic Tundra of Svalbard: Response to a Deeper Snow Experiment [PDF]
, 2018 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.
Cooper, EJ +5 more
core +2 more sources
Differential arthropod responses to warming are altering the structure of Arctic communities [PDF]
Royal Society Open Science, 2018 The Arctic is experiencing some of the fastest rates of warming on the planet. Although many studies have documented responses to such warming by individual species, the idiosyncratic nature of these findings has prevented us from extrapolating them to ...
Amanda M. Koltz +2 more
doaj +1 more source
Arctic Science, 2023 Remote sensing has detected recent trends of increased vegetation productivity on the Bathurst caribou herd’s range. The cause of this spectral greening is unknown but is hypothesized to be the result of a change in the composition, establishment ...
Carolyn Bonta +2 more
doaj +1 more source
Interactions between carbon and nitrogen dynamics in estimating net primary productivity for potential vegetation in North America [PDF]
, 1992 We use the terrestrial ecosystem model (TEM), a process-based model, to investigate how interactions between carbon (C) and nitrogen (N) dynamics affect predictions of net primary productivity (NPP) for potential vegetation in North America. Data on pool
Joyce, L. A. +6 more
core +2 more sources
Longer thaw seasons increase nitrogen availability for leaching during fall in tundra soils [PDF]
, 2016 Climate change has resulted in warmer soil temperatures, earlier spring thaw and later fall freeze-up, resulting in warmer soil temperatures and thawing of permafrost in tundra regions.
Bowden, William B. +3 more
core +2 more sources
Arctic Science, 2019 Shifts in the extent of the boreal forest during past warm intervals and correlations between climate and the position of the forest–tundra ecotone suggest that recent temperature increases will facilitate forest expansion into tundra ecosystems. In this
Trevor C. Lantz +3 more
doaj +1 more source
Changes in Global Grassland Productivity during 1982 to 2011 Attributable to Climatic Factors
Remote Sensing, 2016 Open, Grass- and Forb-Dominated (OGFD) ecosystems, including tundra, tropical grasslands and savanna, provide habitat for both wild and domesticated large ungulate herbivores.
Qingzhu Gao +9 more
doaj +1 more source
Do beaver ponds increase methane emissions along Arctic tundra streams?
Environmental Research Letters, 2023 Beaver engineering in the Arctic tundra induces hydrologic and geomorphic changes that are favorable to methane (CH _4 ) production. Beaver-mediated methane emissions are driven by inundation of existing vegetation, conversion from lotic to lentic ...
Jason A Clark +7 more
doaj +1 more source