Results 101 to 110 of about 973,278 (223)

Permafrost thaw and resulting soil moisture changes regulate projected high-latitude CO2 and CH4 emissions

open access: yesEnvironmental Research Letters, 2015
The fate of currently frozen permafrost carbon as high-latitude climate warms remains highly uncertain and existing models give widely varying estimates of the permafrost carbon-climate feedback.
D M Lawrence   +4 more
doaj   +1 more source

Influence of Geomorphic Disturbance on Phenotypic Species Plasticity and Vegetation Cover in High‐Elevated Belts

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Climate change increases geomorphological disturbances, which in turn affect vegetation establishment in high‐elevation areas; understanding species' responses to such disturbances is essential. We analysed vegetation across disturbed and undisturbed alpine sites to identify environmental drivers and assess species trait plasticity.
Sarah Kinzner   +4 more
wiley   +1 more source

Dendrochronology and remote sensing reveal beaver occupancy and colonization dynamics in an expanding Arctic population

open access: yesEcosphere, Volume 17, Issue 3, March 2026.
Abstract The North American beaver (Castor canadensis) is expanding its distribution in the Arctic tundra. Due to the species' capacity to engineer ecosystems, they can transform surface water dynamics and biogeochemistry, permafrost stability, vegetation composition, and impact Indigenous subsistence practices.
Georgia M. Hole   +5 more
wiley   +1 more source

Alpha diversity patterns are unmatched by beta diversity across productivity gradients of the subarctic

open access: yesEcosphere, Volume 17, Issue 3, March 2026.
Abstract The mechanisms linking productivity to patterns of species richness, species prevalence, and beta diversity remain contested and may be scale‐dependent. We address productivity–diversity relationships in arthropod communities across two subarctic landscapes.
Pablo Peña‐Aguilera   +4 more
wiley   +1 more source

Volatile Organic Compound Release During Litter Decomposition in the Arctic

open access: yesGlobal Change Biology Communications, Volume 1, Issue 1, March 2026.
Volatile organic compound (VOC) emissions from Arctic litter decomposition decline over time and differ strongly between Cassiope tetragona and Salix arctica. The inter‐species differences and changes over time are greater than the effects of climate change treatments on litter VOC emissions.
Riikka Rinnan   +7 more
wiley   +1 more source

Landscape Changes in the Kitchener Avalanche Path, Aoraki/Mount Cook National Park After the Record‐Breaking July 2022 Storm

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Three‐dimensional landscape changes were investigated in the Kitchener Avalanche Path, Aoraki/Mount Cook National Park, New Zealand, after an extreme storm in July 2022. The Path features an earthen diversion berm constructed in 2018 to mitigate the risk of avalanches to the adjacent Aoraki/Mount Cook Village.
David Y. Sheppard   +3 more
wiley   +1 more source

Defining soil: Proposals of zero‐states, active layer, and págousols (from ice parent materials) to fundamentally expand soil science

open access: yesSoil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Recent publications in soil science have reopened discussions over how soil and soil science should be defined, reflecting productive tension between historical constructs and the evolving frontiers of the discipline. While new definitions offered over the past decade provide valuable perspectives, they inevitably rely on past conventions and ...
Aaron Lee M. Daigh
wiley   +1 more source

Influence of the permafrost boundary on dissolved organic matter characteristics in rivers within the Boreal and Taiga plains of western Canada

open access: yesEnvironmental Research Letters, 2014
Catchment export of terrestrial dissolved organic matter (DOM) and its downstream degradation in aquatic ecosystems are important components of landscape scale carbon balances.
D Olefeldt, A Persson, M R Turetsky
doaj   +1 more source

Groundwater Temperature Processes and Patterns: Implications for Stream Thermal Regimes

open access: yesWIREs Water, Volume 13, Issue 2, March/April 2026.
Shallow groundwater temperatures are controlled by ground surface temperatures and are influenced by climate change and land cover changes. Deeper groundwater temperature is constant year‐round, making it cooler (warmer) in the summer (winter) than surface water, and exhibits a lagged response to surface warming.
Barret L. Kurylyk   +6 more
wiley   +1 more source

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