Results 71 to 80 of about 507 (166)
Wildlife Biology, Volume 2026, Issue 4, July 2026.We compared population trends for rock ptarmigan Lagopus muta densities (2003‒2019) derived from walked transects and driven road transects in Mosfellsheiði and Slétta in southwest and northeast Iceland, respectively. The walked transects were laid out according to a random rule.
Matteo Ferrarini, Ólafur K. Nielsen
wiley +1 more source
Changes in the understory plant community and ecosystem properties along a shrub density gradient
Arctic Science, 2018 Climate warming is projected to alter the vegetation community composition of arctic and alpine ecosystems including an increase in the relative abundance and cover of deciduous shrubs.
Anna L. Crofts +2 more
doaj +1 more source
Lidar-derived estimates of boreal shrub biomass in Southcentral Alaska
Environmental Research LettersDespite widespread observations of shrub proliferation and expansion (shrubification), few studies quantify shrub biomass at the regional scale. Here we describe and implement a two-part modeling approach to estimate and map tall shrub (diameter at root ...
Kaili A Martin +5 more
doaj +1 more source
, 2022 Climate change affects the Arctic and sub-Arctic regions by exposing previously frozen permafrost to thaw, unlocking soil nutrients, changing hydrological processes, and boosting plant growth.
Taylor, Meghan +7 more
core +1 more source
, 2022 Climate change affects the Arctic and Subarctic regions by exposing previously frozen permafrost to thaw, unlocking nutrients, changing hydrological processes, and boosting plant growth. As a result, Arctic tundra is subject to a shrub expansion, called “
Taylor, Meghan +7 more
core +1 more source
Composition of organic acids secreted by alpine shrub roots and its influencing factors
Biologia PlantarumBackground and aims: There appears to be a strong correlation between the rapid proliferation of shrubs in the alpine grassland of the Qinghai-Tibet Plateau and the root exudates of these plants.
XI Chen-Kang +3 more
doaj +1 more source
Reindeer use of low Arctic tundra correlates with landscape structure
Environmental Research Letters, 2020 Rapid climate change in Arctic regions is linked to the expansion of woody taxa ( shrubification ), and an increase in biomass as tundra becomes greener.
Anna Skarin +6 more
doaj +1 more source
Bird communities of the arctic shrub tundra of Yamal: habitat specialists and generalists.
PLoS ONE, 2012 BackgroundThe ratio of habitat generalists to specialists in birds has been suggested as a good indicator of ecosystem changes due to e.g. climate change and other anthropogenic perturbations.
Vasiliy Sokolov +4 more
doaj +1 more source
Spatially explicit modeling and prediction of shrub cover increase near Umiujaq, Nunavik [PDF]
, 2018 A circumpolar increase in shrub growth and cover has been underway in Arctic and subarctic ecosystems for the last few decades, but there is considerable spatial heterogeneity in this shrubification process.
Marc-André Lemay +9 more
core +1 more source
Future changes in high latitude shrubification are expected to lead to changes in ecosystem structure and positive climate feedbacks, but the rates and elevational range of shrubification are still poorly constrained. Using a sediment record from a small lake in Iceland’s eastern highlands (422 m asl), we merge a sedimentary ancient DNA (sedaDNA ...
David Harning +7 more
openaire +1 more source