Results 61 to 70 of about 843 (168)

Impact of vegetation mycorrhizal type on fungal community composition in arctic tundra [PDF]

open access: yes, 2021
on the effects of vegetation and associated changes on above and below-ground processes in tundra soils. In a sub-arctic alpine tundra heath, vegetation composition was manipulated by removing plant species with certain mycorrhizal associations.
Kirchhoff, Leah
core  

Responses of soil hexapod communities to warming are mediated by microbial carbon and nitrogen in a subarctic grassland [PDF]

open access: yes, 2023
Altres ajuts: acords transformatius de la UABWarming in subarctic ecosystems will be two-fold higher compared to lower latitudes under current climate change projections.
Ferrín Guardiola, Miquel   +9 more
core   +1 more source

Lacking data? No worries! How synthetic images can alleviate image scarcity in wildlife surveys: A case study with muskox (Ovibos moschatus)

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study investigates the integration of synthetic imagery, created with diffusion‐based models, to supplement limited training data and improve muskox (Ovibos moschatus) detection in zero‐shot (ZS) and few‐shot (FS) settings. ZS models detected more than 80% of muskoxen in real images, confirming the potential of synthetic data as a substitute for ...
Simon Durand   +4 more
wiley   +1 more source

Distance sampling: comparing walked transects and road transects for rock ptarmigan densities and population trends

open access: yesWildlife Biology, EarlyView.
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

Patterned-ground facilitates shrub expansion in Low Arctic tundra

open access: yesEnvironmental Research Letters, 2013
Recent expansion of tall shrubs in Low Arctic tundra is widely seen as a response to climate warming, but shrubification is not occurring as a simple function of regional climate trends.
Gerald V Frost   +4 more
doaj   +1 more source

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

open access: yesArchaeometry, EarlyView.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie   +5 more
wiley   +1 more source

Long-term alpine summit vegetation cover change: Divergent trajectories driven by climate warming and fire

open access: yesArctic, Antarctic, and Alpine Research
Alpine summit vegetation, the highest point of species geographical distributions, is vulnerable to climate change (thermal niche contraction), and there is evidence of change in Northern Hemisphere summits. However, summits are experiencing multifaceted
Iris T. Hickman   +3 more
doaj   +1 more source

Mapping arctic tundra vegetation communities using field spectroscopy and multispectral satellite data in North Alaska, USA [PDF]

open access: yes, 2016
The Arctic is currently undergoing intense changes in climate; vegetation composition and productivity are expected to respond to such changes. To understand the impacts of climate change on the function of Arctic tundra ecosystems within the global ...
Davidson, S.J.   +6 more
core   +3 more sources

Nest Survival and Failure in Ruffs Breeding on Grazed Coastal Meadows

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
ABSTRACT Nest survival is a key determinant of birds' breeding success, particularly in ground‐breeding birds, where nest predation is a major cause of reproductive failure. Birds can maximise their nesting success by optimising aspects of the sociospatial environment of a nest, for example, by reducing the risk of predation or flooding.
Hanna Algora   +7 more
wiley   +1 more source

Contemporary, decadal, and millennial-scale permafrost- and vegetation dynamics and carbon release in an alpine region of Jotunheimen, Norway [PDF]

open access: yes, 2022
Climatic warming in northern alpine regions facilitates the thawing of permafrost, the associated release of soil carbon into the atmosphere, and the altitudinal shifts in vegetation patterns. Here, a multi-disciplinary approach is adopted to investigate
HELEN HALLANG
core   +1 more source

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