Results 31 to 40 of about 843 (168)

Rapid Ecosystem Change at the Southern Limit of the Canadian Arctic, Torngat Mountains National Park

open access: yesRemote Sensing, 2021
Northern protected areas guard against habitat and species loss but are themselves highly vulnerable to environmental change due to their fixed spatial boundaries.
Emma L. Davis   +4 more
doaj   +1 more source

Expansion of the Sahara Desert and shrinking of frozen land of the Arctic. [PDF]

open access: yes, 2020
Expansion of the Sahara Desert (SD) and greening of the Arctic tundra-glacier region (ArcTG) have been hot subjects under extensive investigations. However, quantitative and comprehensive assessments of the landform changes in these regions are lacking ...
Liu, Ye, Xue, Yongkang
core   +1 more source

Decreased soil moisture due to warming drives phylogenetic diversity and community transitions in the tundra

open access: yesEnvironmental Research Letters, 2021
Global warming leads to drastic changes in the diversity and structure of Arctic plant communities. Studies of functional diversity within the Arctic tundra biome have improved our understanding of plant responses to warming. However, these studies still
Ruud Scharn   +8 more
doaj   +1 more source

Arctic shrub expansion revealed by Landsat-derived multitemporal vegetation cover fractions in the Western Canadian Arctic [PDF]

open access: yes, 2022
Warming induced shifts in tundra vegetation composition and structure, including circumpolar expansion of shrubs, modifies ecosystem structure and functioning with potentially global consequences due to feedback mechanisms between vegetation and climate.
Boike, Julia   +5 more
core   +2 more sources

The Transformation of Morphological Properties of Soils Due to the Low Arctic Tundra Shrubification

open access: yesVestnik Tomskogo gosudarstvennogo universiteta. Biologiya, 2022
Climate warming in the Subarctic leads to the expansion of shrub ecosystems. The most common upland tundra shrubification is by alder in combination with dwarf birch and willows. However, the nature and rate of changes in the morphological properties of soils in the low arctic tundra during shrubification remain unknown.
Sergey V. Loiko   +9 more
openaire   +1 more source

Greening on the Bathurst caribou range in northern Canada: are erect shrubs responsible for remotely sensed trends?

open access: yesArctic 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

Shrub expansion in maritime forest responding to sea level rise

open access: yesFrontiers in Forests and Global Change, 2023
Expansion of shrubs has been observed in a number of biomes and in response to diverse global change drivers. Noting shrub expansion in coastal forests affected by sea level rise, we began to monitor shrub populations in a transgressing loblolly pine ...
Rheya Sward   +5 more
doaj   +1 more source

Longer thaw seasons increase nitrogen availability for leaching during fall in tundra soils [PDF]

open access: yes, 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

Strong shrub expansion in tundra-taiga, tree infilling in taiga and stable tundra in central Chukotka (north-eastern Siberia) between 2000 and 2017

open access: yesEnvironmental Research Letters, 2020
Vegetation is responding to climate change, which is especially prominent in the Arctic. Vegetation change is manifest in different ways and varies regionally, depending on the characteristics of the investigated area.
Iuliia Shevtsova   +7 more
doaj   +1 more source

Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities [PDF]

open access: yes, 2011
Part of Focus on Dynamics of Arctic and Sub-Arctic Vegetation Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1)
Andreu-Hayles, Laia   +31 more
core   +3 more sources

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