Results 111 to 120 of about 64,893 (283)

Herbarium specimens reveal drivers of Arctic shrub growth

New Phytologist, EarlyView.
Natalie Iwanycki Ahlstrand, Zoe A. Panchen, Anne D. Bjorkman, James D. M. Speed   +3 more
wiley   +1 more source

Mathematically and biologically consistent framework for presence–absence pairwise indices

Ecography, Volume 2026, Issue 1, January 2026.
Many indices based on presence‐absence data that compare two communities have been proposed, with the aim to characterize community similarity, species turnover or beta‐diversity, as well as other phenomena like community nestedness. These indices are often mathematically convertible to each other and are thus equivalent in terms of their information ...
Arnošt L. Šizling, Petr Keil, Even Tjørve, Kathleen M. C. Tjørve, Jakub D. Žárský, David Storch   +5 more
wiley   +1 more source

The impact of the 1783-1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei [PDF]

, 2010
The 1783–1784 AD Laki flood lava eruption commenced on 8 June 1783 and released 122 Tg of sulphur dioxide gas over the course of 8 months into the upper troposphere and lower stratosphere above Iceland. Previous studies have examined the impact of the
Breider, T. J., Carslaw, K. S., Mann, G. W., Pickering, S. J., Schmidt, A., Thordarson, T., Wilson, M.   +6 more
core   +2 more sources

Community structure and range shifts in Arctic marine fish under climate change

Ecography, Volume 2026, Issue 1, January 2026.
Arctic marine ecosystems are rapidly transforming due to climate change. Warming temperatures and shrinking sea ice are enabling boreal fish to expand northward, possibly disturbing cold‐adapted Arctic species assemblages. Species range shifts have been documented in the Bering and Barents Seas, raising concerns about ecosystem restructuring.
Virginie Marques, Fabian Fopp, Melissa Jaquier, Kari E. Ellingsen, Nigel Yoccoz, Meret Jucker, Camille Albouy, Loïc Pellissier   +7 more
wiley   +1 more source

A new NDVI measure that overcomes data sparsity in cloud-covered regions predicts annual variation in ground-based estimates of high arctic plant productivity

Environmental Research Letters, 2018
Efforts to estimate plant productivity using satellite data can be frustrated by the presence of cloud cover. We developed a new method to overcome this problem, focussing on the high-arctic archipelago of Svalbard where extensive cloud cover during the ...
Stein Rune Karlsen, Helen B Anderson, René van der Wal, Brage Bremset Hansen   +3 more
doaj   +1 more source

Simulation and observations of stratospheric aerosols from the 2009 Sarychev volcanic eruption [PDF]

, 2011
We used a general circulation model of Earth’s climate to conduct simulations of the 12-16 June 2009 eruption of Sarychev volcano (48.1°N, 153.2°E).
Barnes, John E., Bitar, Lubna, Bourassa, Adam, Deshler, Terry, Duck, Thomas, Finger, Fanny, Hoffmann, Anne, Kravitz, Ben, Mattis, Ina, Ritter, Christoph, Robock, Alan, Wu, Decheng   +11 more
core   +1 more source

Changes in greening in the high Arctic: insights from a 30 year AVHRR max NDVI dataset for Svalbard [PDF]

, 2016
Hannah Vickers, Kjell Arild Høgda, S. Solbø, Stein Rune Karlsen, Hans Tømmervik, Ronny Aanes, Brage Bremset Hansen   +6 more
openalex   +1 more source

How the small host the small: cryptogam trait‐mediated structuring of Antarctic microarthropod communities

Ecography, Volume 2026, Issue 1, January 2026.
Primary producers shape terrestrial biodiversity, but most research has focused on vascular plants, while the role of cryptogams (mosses, lichens and algae) remains under‐explored. Cryptogams dominate Antarctic vegetation and support diverse microarthropod communities. However, how cryptogam traits influence these communities remains poorly understood.
Ingeborg J. Klarenberg, Rong Liu, Peter Convey, Johannes H. C. Cornelissen, Stef Bokhorst   +4 more
wiley   +1 more source

Sediment deformation and basal dynamics beneath a glacier surge front: Bakaninbreen, Svalbard [PDF]

, 1997
Philip R. Porter, Tavi Murray, Julian A. Dowdeswell   +2 more
openalex   +1 more source

Stable carbon isotopes of methane reveal that the central Arctic Ocean is a potential sink of atmospheric methane

Limnology and Oceanography, Volume 71, Issue 1, January 2026.
Abstract Marine methane emissions are important components of natural methane budgets, but the methane emission contribution derived from the central Arctic is still unclear. Here, we measured the dissolved methane concentration and its stable carbon isotopic signature (δ13C‐CH4) while onboard a western Arctic cruise in 2024.
Wangwang Ye, Liyang Zhan, Man Wu, Jian Liu   +3 more
wiley   +1 more source