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Climatic variability as a principal driver of primary production in the southernmost subalpine Rocky Mountain lake Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-03-13 Anna Shampain, Jill S. Baron, Peter R. Leavitt, Sarah A. Spaulding
Mountain lakes are sensitive indicators of anthropogenically driven global change, with lake sediment records documenting increased primary production during the twentieth century. Atmospheric nutr...
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Ground-penetrating radar investigation of regolith thickness on a periglacial alpine summit flat, Uinta Mountains, Utah, USA Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-03-14 Jeffrey S. Munroe
Summit flats are low-relief, gently sloping landforms common in periglacial mountain environments. Apart from at their edges where summit flats are truncated by glacial headwalls and at their crest...
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An alpine enigma: Plant pathogens at Kosciuszko, Australia—A review Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-03-05 Paul L. Guy, Adrian J. Gibbs
Two plant viruses and a microcyclic rust infect a rare endemic species (Cardamine robusta Brassicaceae) near the highest point in Australia in the Kosciuszko alpine zone. Cardamine chlorotic fleck ...
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Characterizing vegetation and return periods in avalanche paths using lidar and aerial imagery Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-03-01 Erich H. Peitzsch, Chelsea Martin-Mikle, Jordy Hendrikx, Karl Birkeland, Daniel Fagre
Snow avalanches are a hazard and ecological disturbance across mountain landscapes worldwide. Understanding how avalanche frequency affects forests and vegetation improves infrastructure planning, ...
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Vulnerability assessment and analysis of cryosphere changes in the Western Sichuan Plateau Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-02-27 Lumin Nie, Zihan Zhang, Heng Lu
A vulnerability assessment model and indicator system for the changes in the cryosphere in the Western Sichuan Plateau are constructed based on the “exposure–sensitivity–adaptive capacity” framewor...
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Alpine vegetation community patterns in the Khumbu region, Nepalese Himalaya Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-02-20 Ruolin Leng, Stephan Harrison, Elizabeth A. Byers, Mahesh Magar, Harkrei Rai, Ram Raj Rijal, Karen Anderson
The Himalayan alpine zone (HAZ)—a high-altitude zone above approximately 4,100 m.a.s.l., is projected to experience strong eco-environmental changes with climate change. As plants expand their rang...
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About the Cover - Arctic, Antarctic, and Alpine Research, Volume 56(1) Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-02-14
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 56, No. 1, 2024)
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Accounting deviations between the measured and simulated impact pressures in high-density snow avalanches Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-02-09 Rakesh K. Aggarwal, Ranjan Das, Hemendra S. Gusain
Most of the available models for estimating the snow avalanche impact pressures are 2D in nature. In this work, a 3D non-Newtonian Navier-Stokes equations–based simulation model is developed. For t...
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Using surrogate species and MaxEnt modeling to prioritize areas for conservation of a páramo bird community in a tropical high Andean biosphere reserve Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-01-22 Pedro X. Astudillo, Santiago Barros, Danilo Mejía, Fernando R. Villegas, David C. Siddons, Steven C. Latta
The páramo grassland ecosystem in the high Andes requires definition of spatially explicit and large-scale priorities for bird conservation, especially for lands outside of protected areas. Using s...
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Community-led relocations and the use of buyouts as an adaptation to climate change-induced flooding and erosion Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-01-11 Elizabeth Marino, Noemie Gonzalez, Alessandra Jerolleman, Annie Weyiouanna, Dennis Davis, Chantel Comardelle
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 56, No. 1, 2024)
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Vegetation responses to snow cover removal and rainfall reduction in subalpine grasslands: Insights from a 4-year field experiment in the Spanish Pyrenees Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-01-04 Antonio I. Arroyo, Miguel Castillo-Garcia, Yolanda Pueyo, Concepción L. Alados
Reduced precipitation as well as warming may result in less snow accumulation in seasonally snow-covered areas, leading to lower minimum soil temperatures and more frequent and severe soil frosts. ...
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Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2024-01-03 Nina Kirchner, Jan Weckström, Joachim Jansen, Frederik Schenk, Jamie Barnett, Annika Granebeck, Matti Leppäranta, Atte Korhola
In the rapidly warming circumpolar Arctic, recent research of lakes has focused on their climatology and ecology but is challenged by sparsity of wintertime data. At the c. 48-m-deep and c. 0.5-km2...
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Microbial ecology and activity of snow algae within a Pacific Northwest snowpack Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-12-20 Caleb G. Schuler, Jill A. Mikucki
Snow algae blooms are common occurrences in alpine systems and contribute to increasing snow and glacial ice melt rates. Despite the cosmopolitan distribution of snow algae, little is known about t...
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Implications of alder shrub growth for alpine tundra soil properties in Interior Alaska Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-12-20 Allison M. Welch, Shawn A. Pedron, Robert Gus Jespersen, Xiaomei Xu, Brittney Martinez, Yezzen Khazindar, Nicole M. Fiore, Michael L. Goulden, Claudia I. Czimczik
The increase in deciduous shrub growth in response to climate change throughout the Arctic tundra has uncertain implications, in part due to a lack of field observations. Here we investigate how in...
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Methane emissions from subglacial meltwater of three alpine glaciers in Yukon, Canada Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-12-12 Sarah Elise Sapper, Christian Juncher Jørgensen, Moritz Schroll, Frank Keppler, Jesper Riis Christiansen
Subglacial meltwater of land-terminating glaciers in Greenland and Iceland are sources of methane (CH4) to the atmosphere, but sparse empirical data exist about the spatial distribution of subglaci...
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Assessment of Arctic sea ice and surface climate conditions in nine CMIP6 climate models Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-12-05 Martin Henke, Felício Cassalho, Tyler Miesse, Celso M. Ferreira, Jinlun Zhang, Thomas M. Ravens
The observed retreat and anticipated further decline in Arctic sea ice holds strong climate, environmental, and societal implications. In predicting climate evolution, ensembles of coupled climate ...
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Effects of nitrogen on benthic diatom assemblages in high-elevation central and eastern alpine lakes Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-11-29 Fabio Lepori, Monica Tolotti
We explored patterns of benthic diatom composition across sixty-two high-elevation alpine lakes spanning a wide range of nitrogen (N) concentrations due to atmospheric deposition and background var...
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The legacy of ecological imperialism in the Scandes: Earthworms and their implications for Arctic research Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-11-21 Philip Jerand, Jonatan Klaminder, Johan Linderholm
In the nineteenth century, numerous settlements were established in the alpine region of Fennoscandia (the Scandes), an area that later became a major international scene for Arctic research. Here ...
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Effects of storms on fisheries and aquaculture: An Icelandic case study on climate change adaptation Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-11-17 Nicole Sühring, Catherine Chambers, Torben Koenigk, Tim Kruschke, Niels Einarsson, A. E. J. Ogilvie
Climate change research on fisheries is often focused on changes in species abundance and distribution, yet the impacts of severe weather events are also important. Climate models indicate that sto...
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Bacterial community structure of microbial pinnacles in ice-covered Lake Vanda, Antarctica Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-11-17 Christen L. Grettenberger, Dawn Y. Sumner, Kate Wall, Ian Hawes, Tyler Mackey, Anne D. Jungblut
The McMurdo Dry Valleys are a cold and arid environment with low biomass relative to most ice-free environments. The ice-covered lakes in the valleys, however, provide a refuge for diverse microbia...
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Hydrological heterogeneity and the plant colonization of recently deglaciated terrain Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-10-19 Lila Siegfried, Pascal Vittoz, Stuart N. Lane
Climate change accelerates glacier retreat, leading to extensive exposure of sediment to light and ecological succession. Succession has traditionally been studied as a chronosequence, where vegeta...
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Permafrost development in northern Fennoscandian peatlands since the mid-Holocene Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-09-26 Marit Hichens-Bergström, A. Britta K. Sannel
Increased permafrost temperatures have been reported in the circum-Arctic, and widespread degradation of permafrost peatlands has occurred in recent decades. The timing of permafrost aggradation in...
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Memorial to Norman W. Ten Brink (1943–2023) Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-09-06 William J. Neal, Alan Werner, Christopher F. Waythomas
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 55, No. 1, 2023)
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Non-native vascular flora of alpine areas in the White Mountains, New Hampshire, USA Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-09-06 Daniel D. Sperduto, William F. Nichols, Michael T. Jones
ABSTRACT Arctic-alpine vegetation in the eastern United States is unique to northern New England and New York and is disjunct from similar areas in eastern Canada. We present the first study of the non-native flora in the region, specifically focusing on New Hampshire’s White Mountains. By combining literature and herbaria searches, field surveys, and a seventeen-year evaluation at an alpine hut in
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Long-term change and geospatial patterns of river ice cover and navigability in Southcentral Alaska detected with remote sensing Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-08-25 Dana R. N. Brown, Christopher D. Arp, Todd J. Brinkman, Barbara A. Cellarius, Melanie Engram, Mark E. Miller, Katie V. Spellman
ABSTRACT People who travel on ice-covered rivers to access traditional lands and resources can be profoundly impacted by effects of climate change on river ice seasonality. We used remote sensing, bolstered by citizen science, to assess trends and geospatial patterns of the ice cover in the Copper River Basin of Southcentral Alaska. Our analysis of Landsat imagery from water years (WYs) 1973 to 2021
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Yukon ice patches: Bryophyte generation from ancient ice-entombed assemblages Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-07-17 Brittney L. Miller, Catherine La Farge
ABSTRACT In Southwestern Yukon, ice patches have shown substantial retreat since the Little Ice Age (1600–1900 AD) in response to warming trends. These ice patches support unique alpine wetlands that have formed habitats for diverse flora and fauna over millennia. With ice retreat, pristine bryophyte populations are exposed beneath accumulated ancient dung. Given that bryophytes have been shown to
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Multi-proxy evidence of unprecedented hydroclimatic change in a high Arctic proglacial lake: Linnévatnet, Svalbard Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-07-11 Francois Lapointe, Michael Retelle, Raymond S. Bradley, Wesley R. Farnsworth, Eivind Støren, Timothy Cook, Josiane Rosario
ABSTRACT Svalbard is at the forefront of sea ice, marine, and terrestrial environmental change in the Arctic and so can be viewed as an example of what may be expected in other high latitude regions influenced by the North Atlantic Current. However, there are few highly resolved (subdecadal) paleoclimate records from this area that provide a long-term perspective on recent climatic changes. Here, we
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Tundra conservation challenged by forest expansion in a complex mountainous treeline ecotone as revealed by spatially explicit tree aboveground biomass modeling Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-07-06 Stefan Kruse, Iuliia Shevtsova, Birgit Heim, Luidmila A. Pestryakova, Evgeniy S. Zakharov, Ulrike Herzschuh
ABSTRACT The subarctic forest tundra transition zone is one of the most vulnerable ecological regions worldwide and susceptible to climate change. Forest changes could lead to biodiversity losses when tundra areas become colonized. However, the impact of complex landscapes with barriers and channels for seed dispersal is highly understudied. Hence, we investigated potential tree aboveground biomass
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Correction Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-06-28
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 55, No. 1, 2023)
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Drivers of soil temperature variation in alpine lichen heaths and shrub vegetation during the summer Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-05-25 Peter Aartsma, Arvid Odland, Stefanie Reinhardt, Hans Renssen
ABSTRACT Lichen heaths are decreasing in abundance in alpine and Arctic areas because of an increased competition with shrubs. This shift in vegetation might have important consequences for the soil temperature. The aim of this study is to find the drivers of the variation in soil temperature below lichen heaths and shrubs. Moreover, we want to gain more insight in the variability of the soil temperature
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Arctic ecosystem restoration with native tundra bryophytes Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-05-25 Jasmine JM Lamarre, Amalesh Dhar, M. Anne Naeth
ABSTRACT Bryophytes are ecologically essential to northern ecosystem restoration after disturbance. In this study, native bryophytes were used to revegetate two Arctic restoration sites. Different propagation types (small, medium, large fragments) and substrates (crushed rock, lake sediment, processed kimberlite in Canada; volcanic silt loam and crushed lava rock in Iceland) with two erosion control
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Will current protected areas harbor refugia for threatened Arctic vegetation types until 2050? A first assessment Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-05-11 Merin Reji Chacko, Jacqueline Oehri, Elena Plekhanova, Gabriela Schaepman-Strub
ABSTRACT Arctic vegetation is crucial for fauna and the livelihoods of Northern peoples and is tightly linked to climate, permafrost soils, and water. Yet, a comprehensive understanding of climate change effects on Arctic vegetation is lacking. Protected areas cannot halt climate change but could reduce future pressure from additional drivers, like land use change and local industrial pollution. Therefore
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Integrating local environmental observations and remote sensing to better understand the life cycle of a thermokarst lake in Arctic Alaska Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-05-02 Benjamin M. Jones, Susan Schaeffer Tessier, Tim Tessier, Michael Brubaker, Mike Brook, Jackie Schaeffer, Melissa K. Ward Jones, Guido Grosse, Ingmar Nitze, Tabea Rettelbach, Sebastian Zavoico, Jason A. Clark, Ken D. Tape
ABSTRACT On 29 June 2022, local observers reported the drainage of a 0.5 ha lake near Qikiqtaġruk (Kotzebue), Alaska, that prompted this collaborative study on the life cycle of a thermokarst lake in the Arctic. Prior to its drainage, the lake expanded from 0.13 ha in 1951 to 0.54 ha in 2021 at lateral rates that ranged from 0.25 to 0.35 m/year. During the drainage event, we estimate that 18,500 m3
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Meteorological conditions and snow-avalanche occurrence over three snow seasons (2017–2020) in Tasiapik Valley, Umiujaq, Nunavik Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-04-24 Jérémy Grenier, Najat Bhiry, Armelle Decaulne
ABSTRACT In this article, we study snow avalanche activity during the snow seasons of 2017–2020 using four automatic time-lapse cameras strategically positioned along the southwestern slope of Tasiapik Valley, near the village of Umiujaq, in Nunavik (northern Québec, Canada). Over the three snow seasons, cameras helped to detect evidence of 130 avalanche events, scattered over seventy-eight distinct
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About the cover — Arctic, Antarctic, and Alpine Research, Volume 55(1) Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-04-11
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 55, No. 1, 2023)
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Heat balance of a low-elevated Svalbard glacier during the ablation season: A case study of Aldegondabreen Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-04-05 Uliana Prokhorova, Anton Terekhov, Boris Ivanov, Vasiliy Demidov
ABSTRACT On the basis of in situ weather observations and a physical-based model, verified by a glaciological method, this article investigates the surface energy balance of the Aldegondabreen glacier during the summer melt season of 2021. Aldegondabreen (5.3 km2) is a low-elevation glacier near the western shore of Spitsbergen Island. On the timescale of the whole melt season, the prevalent positive
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Permafrost and seasonal frost thermal dynamics over fifty years on tropical Maunakea volcano, Hawai‘i Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-29 Kenji Yoshikawa, Norbert Schorghofer, Fritz Klasner
ABSTRACT A unique permafrost thermal state was examined at Maunakea, Hawaiʻi. The presence of the permafrost was determined in 1969. Mean annual ground surface temperature (MAGST) is significantly above zero at permafrost sites, between +2°C and +5°C. This indicates that subsurface thermal processes control and preserve the permafrost state (strong thermal resistance). Year-round high-resolution (1-cm
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Inventory and kinematics of active and transitional rock glaciers in the Southern Alps of New Zealand from Sentinel-1 InSAR Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-29 Christophe Lambiel, Tazio Strozzi, Nicolas Paillex, Sebastián Vivero, Nina Jones
ABSTRACT In this study, we inventoried and mapped the active and transitional rock glaciers in the central part of the Southern Alps, New Zealand, using Sentinel-1 InSAR (interferometric synthetic aperture radar) data. We used forty-three interferograms acquired between 2015 and 2019 with time intervals between six days and two years along with orthoimage analyses. A total of 123 rock glaciers were
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Spatiotemporal niche overlap, asymmetric reproductive interference, and population genetics between the sympatric species, Rhododendron diversipilosum and Rhododendron subarcticum, in alpine fellfield habitat Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-28 Yuki Shiotani, Gaku Kudo
ABSTRACT Reproductive interference between sympatric-related species often causes adverse impacts on rare species, which increases the risk of local extinction, particularly in small and isolated populations. To evaluate the congeneric interactions in alpine plants, we compared the ecological and genetic properties and assessed the reproductive interference between tetraploid Rhododendron diversipilosum
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Glacier-specific factors drive differing seasonal and interannual dynamics of Nunatakassaap Sermia and Illullip Sermia, Greenland Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-27 J.R. Carr, E. Carr, N. Ross
ABSTRACT Accelerated ice discharge from marine-terminating outlet glaciers accounted for ~48 percent of ice loss from Greenland between 1992 and 2018, and the northwest has been the largest source of dynamic ice loss. Here, we assess the dynamics of two neighboring northwest Greenland glaciers, Nunatakassaap Sermia (NS) and Illullip Sermia (IS), for 2000 to 2020. Retreat rates at NS far exceeded those
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Investigating ten years of warming and enhanced snow depth on nutrient availability and greenhouse gas fluxes in a High Arctic ecosystem Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-22 Jacqueline K. Y. Hung, Neal A. Scott, Paul M. Treitz
ABSTRACT Arctic warming and changing precipitation patterns are altering soil nutrient availability and other processes that control the greenhouse gas balance of high-latitude ecosystems. Changes to these biogeochemical processes will ultimately determine whether the Arctic will enhance or dampen future climate change. At the Cape Bounty Arctic Watershed Observatory, a full-factorial International
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Disproportional vulnerability of mountain aquatic invertebrates to climate change effects Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-16 Georg H. Niedrist, Leopold Füreder
ABSTRACT Mountain freshwater communities are generally considered sensible to accelerated climatic changes, though their vulnerabilities have not been well evaluated. Individual species or species groups are expected to respond differently depending on their adaptations, traits, or distributions, but this has not yet been distinguished. This work used available climate change vulnerability scores (ccvs)
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Plant succession on glacial moraines in the Arctic Brooks Range along a >125,000-year glacial chronosequence/toposequence Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-15 Shawnee A. Kasanke, Donald A. Walker, F. Stuart Chapin III, Daniel H. Mann
ABSTRACT Widespread glacial retreat is now occurring in many arctic mountain ranges, yet little is known about primary succession following deglaciation in these settings. Newly created habitats could provide refugia for flora and fauna whose ranges are threatened elsewhere by rapid warming. To assess vegetation responses to glacial retreat in an arctic–alpine setting, we first describe plant community
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Arthropod communities along an elevation gradient in Denali National Park and Preserve, Alaska: Rapidly shrinking tundra hosts a unique assemblage of specialists Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-15 Adam Haberski, Jessica Rykken, Derek S. Sikes
ABSTRACT Arthropods at high latitudes and elevations are likely to be vulnerable to effects from climate change such as increased temperatures and shifting vegetation boundaries. Though range shifts northwards and upslope have been reported for many arthropod taxa in temperate latitudes, baseline data needed to track such changes are scarce at northern latitudes. We investigated the influence of climate
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Influence of vegetation on occurrence and color of snow algal blooms in Mt. Gassan, Yamagata Prefecture, Japan Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-13 Takumi Suzuki, Nozomu Takeuchi
ABSTRACT Snow algae are photosynthetic microbes growing on melting snow surfaces, the blooms of which are visible on alpine snowpacks in Japan during the melting season. We characterized the seasonal and altitudinal variations in algal blooms on Mount Gassan, Japan, to assess the influence of vegetation on the algal bloom. From May to July in 2019, we collected colored snow from lower deciduous forest
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Local variability of a taiga snow cover due to vegetation and microtopography Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-08 Anton Komarov, Matthew Sturm
ABSTRACT The taiga snow cover accumulates in relatively stable and windless weather. This should produce a uniform snow cover with continuous, laterally homogeneous stratigraphy and snow properties when the snow is deposited on a level, smooth substrate. However, such substrates are rare, and local variations in vegetation and ground surface topography alter the structure of the snow cover and produce
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Drought erodes mountain plant community resistance to novel species under a warming climate Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-03-07 Max A. Schuchardt, Bernd J. Berauer, Justyna Giejsztowt, Andreas V. Heßberg, Yujie Niu, Michael Bahn, Anke Jentsch
ABSTRACT Warming in mountain regions is projected to occur three times faster than the global average. Recently, a small number of observational studies have reported species loss in mountain plant communities and have explored mechanisms facilitating the colonization by novel species. We monitored translocated mountain plant communities and their novel competitor interactions following five years
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Three-dimensional subsurface architecture and its influence on the spatiotemporal development of a retrogressive thaw slump in the Richardson Mountains, Northwest Territories, Canada Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-02-27 Julius Kunz, T. Ullmann, C. Kneisel, R. Baumhauer
ABSTRACT The development of retrogressive thaw slumps (RTS) is known to be strongly influenced by relief-related parameters, permafrost characteristics, and climatic triggers. To deepen the understanding of RTS, this study examines the subsurface characteristics in the vicinity of an active thaw slump, located in the Richardson Mountains (Western Canadian Arctic). The investigations aim to identify
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Genetic analysis of the frozen microbiome at 7900 m a.s.l., on the South Col of Sagarmatha (Mount Everest) Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-02-16 Nicholas B. Dragone, L. Baker Perry, Adam J. Solon, Anton Seimon, Tracie A. Seimon, Steven K. Schmidt
ABSTRACT Microbial communities in alpine environments >7,500 m.a.s.l. have not been well studied using modern cultivation-independent sequencing approaches due to the challenges and danger associated with reaching such high elevations. For this reason, we know little about the microorganisms found in sediments on Earth’s tallest mountains, how they reach these surfaces, and how they survive and remain
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Correction Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-01-30
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 54, No. 1, 2022)
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Introduction: Processes and Palaeo-Environmental Changes in the Arctic from Past to Present (PalaeoArc) special issue Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2023-01-05 Astrid Lyså, Anne Jennings, Caterina Morigi, Chris R. Stokes, Monica C. M. Winsborrow
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 54, No. 1, 2022)
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Sedimentary facies and clay mineralogy of the late Pleistocene Landsort Deep sediments, Baltic Sea — Implications for the Baltic Ice Lake development Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-12-22 Raisa Alatarvas, Kari Strand, Outi Hyttinen, Aarno Kotilainen
ABSTRACT The Landsort Deep is the deepest part of the Baltic Sea and contains an excellent high-resolution late Pleistocene sediment record suitable to study the retreat history of the southern margin of the Fennoscandian Ice Sheet and the development of the ice-marginal Baltic Ice Lake (BIL) from ~13.5 to 10.5 ka BP. The studied cores are from the lithostratigraphic Units V and VI of Hole M0063C that
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Stress-associated metabolites vary with both season and habitat across populations of a climate sentinel species Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-12-21 A. L. Whipple, C. Ray, J. Varner, J. N. Kitchens, A.A. Hove, J. A. Castillo Vardaro, J. L. Wilkening
ABSTRACT Relating physiological stress to habitat quality could refine conservation efforts. Habitat quality, which is often inferred from patch occupancy or demographic rates, might be measured in a more timely and nuanced way using metrics of physiological stress. To understand whether stress-associated hormones vary with metrics of habitat quality, we measured fecal glucocorticoid metabolite (FGM)
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Mass balance, ice volume, and flow velocity of the Vestre Grønfjordbreen (Svalbard) from 2013/14 to 2019/20 Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-12-16 Anton V. Terekhov, Sergei Verkulich, Alexander Borisik, Vasiliy Demidov, Uliana Prokhorova, Kseniia Romashova, Mikhail Anisimov, Olga Sidorova, Gleb Tarasov
ABSTRACT The first seven years (2013/14–2019/20) of annual and seasonal mass-balance monitoring on the glacier Vestre Grønfjordbreen (16.4 km2), located south of the town of Barentsburg on Spitsbergen, Svalbard, are presented. This part of the archipelago is one of the least glaciated on Svalbard and at the same time it experiences the most prominent glacier retreat within the last few decades. The
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Multiproxy investigation of the last 2,000 years BP marine paleoenvironmental record along the western Spitsbergen margin Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-11-01 Fiorenza Torricella, Viviana Maria Gamboa Sojo, Karen Gariboldi, Nessim Douss, Maria Elena Musco, Chiara Caricchi, Renata Giulia Lucchi, Katia Carbonara, Caterina Morigi
ABSTRACT A reconstruction of the last 2,000 years BP of environmental and oceanographic changes on the western margin of Spitsbergen was performed using a multidisciplinary approach including the fossil assemblages of diatoms, planktic and benthic foraminifera and calcareous nannofossils and the use of geochemistry (X-ray fluorescence spectroscopy, X-ray diffraction). We identified two warm periods
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Timing and duration of ephemeral Antarctic water tracks and wetlands using high temporal–resolution satellite imagery, high spatial–resolution satellite imagery, and ground-based sensors in the McMurdo Dry Valleys Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-10-31 Lily Kuentz, Joseph Levy, Mark Salvatore
ABSTRACT Antarctic water tracks and ephemeral wetlands are a primary location for biogeochemical soil processes driving cold desert soil formation. Though the spatial extent of water tracks and wetted soils has been mapped in the McMurdo Dry Valleys (MDV) on the basis of mapping darkened pixels in high-resolution commercial satellite imagery, the timescale over which water tracks and wetlands form
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Correction Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-10-28
Published in Arctic, Antarctic, and Alpine Research: An Interdisciplinary Journal (Vol. 54, No. 1, 2022)
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Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-10-20 Natalie Baillargeon, Grace Pold, Susan M. Natali, Seeta A. Sistla
ABSTRACT The Arctic is experiencing the greatest increase in average surface temperature globally, which is projected to amplify wildfire frequency and severity. Wildfire alters the biogeochemical characteristics of arctic ecosystems. However, the extent of these changes over time—particularly with regard to plant stoichiometries relative to community structure—is not well documented. Four years after
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Modeling weak snow layer fracture in propagation saw test using an ice column model Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-10-18 Agraj Upadhyay, Rajneesh Sharma, Puneet Mahajan
ABSTRACT Fracture initiation and propagation in a weak snow layer are two primary processes of the slab avalanche formation process. This study proposes a model for the weak snow layer and investigates the fracture propagation process. The weak snow layer is conceptualized as columns of ice sandwiched between two strong layers of snow. The strong layers are modeled as linear elastic, whereas the ice
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Tundra shrub expansion in a warming climate and the influence of data type on models of habitat suitability Arct. Antarct. Alp. Res. (IF 2.0) Pub Date : 2022-10-12 Jordan H. Seider, Trevor C. Lantz, Christopher Bone
ABSTRACT Warming across the low Arctic is increasing tundra vegetation productivity and facilitating the expansion of upright shrubs. We modeled the effects of warming on habitat suitability in green alder, dwarf birch, Labrador tea, bog bilberry, and lingonberry and assessed the influence of data type (true absence or pseudo-absence) on species distribution models (SDMs). We generated SDMs using the