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Correction Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-12-17
(2020). Correction. Arctic, Antarctic, and Alpine Research: Vol. 52, No. 1, pp. 650-650.
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Moving up and over: redistribution of plants in alpine, Arctic, and Antarctic ecosystems under global change Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-12-17 Lisa J. Rew; Keith L. McDougall; Jake M. Alexander; Curtis C. Daehler; Franz Essl; Sylvia Haider; Christoph Kueffer; Jonathan Lenoir; Ann Milbau; Martin A. Nuñez; Aníbal Pauchard; Wolfgang Rabitsch
ABSTRACT Extreme abiotic conditions, geographic isolation, and low levels of disturbance have historically provided alpine, Arctic, and Antarctic regions with low input of and relative resistance to the introduction of new species. However, the climate is warming rapidly, concomitant with intense and diversified types of human influence in these cold environments. Consequently, many plant species,
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Physical, chemical, and biological characteristics of supraglacial pools on a debris-covered glacier in Mt. Gongga, Tibetan Plateau Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-11-30 Heather Fair; Peter C. Smiley Jr.; Liu Qiao
ABSTRACT Meltwater habitats are found on glacier surfaces worldwide, but much of the current understanding of these habitats comes from clean glaciers sprinkled with cryoconite. Cryoconite is windblown dust particles covered with biological material that form small meltwater holes due to difference in the albedo of cryoconite compared to clean ice. However, no information is available on the physical
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Accelerated retreat of coastal glaciers in the Western Prince William Sound, Alaska Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-11-11 Dean R. Maraldo
ABSTRACT Analyzing historical maps and Landsat imagery indicates that coastal glaciers in the western Prince William Sound (PWS) have retreated since the end of the Little Ice Age, exhibiting accelerated retreat after the mid-2000s. A multitemporal inventory of 43 glaciers was developed using historical field observations, topographic maps, and Landsat imagery. Area and length measurements are derived
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Glacio-environmental aspects recorded in two shallow ice cores drilled in 1980 at accumulation area of Khumbu Glacier of Mt. Everest in Nepal Himalayas Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-11-05 Nozomu Takeuchi; Yoichiro Hori; Noboru Furukawa; Minoru Yoshida; Yoshiyuki Fujii
ABSTRACT The physical and geochemical characteristics of shallow ice cores drilled in the accumulation area (Western Cwm) of Khumbu Glacier in the Nepal Himalayas in 1980 were analyzed. The two ice cores from different elevations (cores 1 and 2 from 6,100 and 6,400 m a.s.l., respectively) showed distinct stratigraphy: Core 1 consisted of stratified firn layers with a few ice and dust layers, whereas
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Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-11-02 Julia E. Baak; Jennifer F. Provencher; Mark L. Mallory
ABSTRACT The arctic tern (Sterna paradisaea) is a ubiquitous migratory seabird of the High Arctic, currently thought to be in decline in most of the circumpolar world, but surprisingly little is known of its biology at high latitudes. We studied organ size and nutrient reserves of arctic terns breeding beside a High Arctic polynya in Nunavut, Canada, from their arrival at the colony into the chick-rearing
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Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-10-28 Robert W. Buchkowski; Douglas W. Morris; William D. Halliday; Angélique Dupuch; Clara Morrissette-Boileau; Stéphane Boudreau
ABSTRACT We assessed the response of Salix richardsonii, a deciduous shrub, to climate change by determining the combination of climatic factors that regulated its growth over the past half-century. We tested whether increasing arctic temperatures promote shrub growth and increased cover. We analyzed fifty-four stems (out of seventy sampled) from S. richardsonii shrubs near the Walker Bay research
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The end of the eternal snows: Integrative mapping of 100 years of glacier retreat in the Venezuelan Andes Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-10-26 Nerio Ramírez; Alejandra Melfo; Lynn M. Resler; Luis D. Llambí
ABSTRACT Venezuela will soon become the first Andean country to lose all of its glaciers, as the “eternal snows” of the Sierra Nevada de Mérida (SNM) disappear. Although documentation of glacier retreat in Venezuela commenced over a century ago, an updated reconstruction at sufficient spatial resolution is warranted. Our objectives were to (a) produce detailed multitemporal maps of glacier cover in
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Soil microbial abundance and activity across forefield glacier chronosequence in the Northern Patagonian Ice Field, Chile Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-10-22 Fernando D. Alfaro; Alejandro Salazar-Burrows; Camila Bañales-Seguel; Juan-Luis García; Marlene Manzano; Pablo A. Marquet; Kriss Ruz; Aurora Gaxiola
ABSTRACT In recently deglaciated soils, microbial organisms drive soil transformations by increasing carbon (C) and nitrogen (N) pools while depleting available phosphorous (P), thus improving plant colonization and soil development. However, the rate of soil development can vary in response to local environmental conditions that affect microbial abundance and activity. In this contribution we use
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John Rae, Arctic Explorer. The Unfinished Autobiography Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-10-19 Adrian Howkins
(2020). John Rae, Arctic Explorer. The Unfinished Autobiography. Arctic, Antarctic, and Alpine Research: Vol. 52, No. 1, pp. 551-552.
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Population density of snow leopards (Panthera uncia) in the Yage Valley Region of the Sanjiangyuan National Park: Conservation implications and future directions Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-10-13 Liyun Zhang; Xinming Lian; Xin Yang
ABSTRACT Population-based studies on snow leopard (Panthera uncia) are of theoretical and practical significance for the conservation of alpine ecosystems, though geographic remoteness and isolation hinder surveys in many promising regions. The Sanjiangyuan National Park on the Tibetan Plateau is acknowledged as a main snow leopard habitat, but most of the region remains unexplored and unknown. We
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Responses of low Arctic tundra plant species to experimental manipulations: Differences between abiotic and biotic factors and between short- and long-term effects Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-10-12 Qian Gu; Paul Grogan
ABSTRACT Climate change in arctic tundra is projected to affect air temperature, snow depth, soil fertility, and caribou herbivory, which may alter plant community composition by shifting niche space to favor particular species’ life history strategies. We report responses of a Canadian mesic birch hummock tundra plant community to a range of manipulative experiments (greenhouse warming, fertilization
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Identification of the ecological preferences of Cyclotella comensis in mountain lakes of the northern European Alps Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-09-29 Stefan Ossyssek; Jürgen Geist; Petra Werner; Uta Raeder
ABSTRACT Planktic diatom ecology in the mountain lakes of the northern European Alps has only been studied sparsely so far. To fill this knowledge gap, the driving parameters of planktic diatom assemblage composition in the euphotic zones of twenty lakes located between 955 and 2,060 m a.s.l. were assessed. The mean August water temperature, concentration of major ions, total phosphorous, and lake
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Modern foraminiferal assemblages in northern Nares Strait, Petermann Fjord, and beneath Petermann ice tongue, NW Greenland Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-09-24 Anne Jennings; John Andrews; Brendan Reilly; Maureen Walczak; Martin Jakobsson; Alan Mix; Joe Stoner; Keith W. Nicholls; Maziet Cheseby
Calving events of Petermann Glacier, northwest Greenland, in 2010 and 2012 reduced the length of its ice tongue by c. 25 km, allowing exploration of newly uncovered seafloor during the Petermann 2015 Expedition. This article presents the results of foraminiferal analysis and environmental data from thirteen surface sediment samples in northern Nares Strait and Petermann Fjord, including beneath the
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Classifying connectivity to guide aquatic habitat management in an arctic coastal plain watershed experiencing land use and climate change Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-09-23 Taylor M. Johaneman; Christopher D. Arp; Matthew S. Whitman; Allen C. Bondurant; Hillary B. Hamann; Michael W. Kerwin
Habitat connectivity supports life history requirements of many arctic fish species during periods of flowing water. However, aquatic habitat connectivity is susceptible to change due to climate factors and land use, particularly in the 4,600 km2 Fish Creek Watershed (FCW) located in National Petroleum Reserve in Alaska. Varying degrees and mechanisms of connectivity between overwintering habitat and
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Deeper snow increases the net soil organic carbon accrual rate in moist acidic tussock tundra: 210Pb evidence from Arctic Alaska Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-09-22 Karyn C. DeFranco; Michael P. Ricketts; Elena Blanc-Betes; Jeffrey M. Welker; Miquel A. Gonzalez-Meler; Neil C. Sturchio
The net change in the carbon inventory of arctic tundra remains uncertain as global warming leads to shifts in arctic water and carbon cycles. To better understand the response of arctic tundra carbon to changes in winter precipitation amount, we investigated soil depth profiles of carbon concentration and radionuclide activities (7Be, 137Cs, 210Pb, and 241Am) in the active layer of a twenty-two-year
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Regional climate change signals inferred from a borehole temperature profile in Muli, Qilian Mountain, using the Tikhonov method Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-09-18 Jia Liu; Guanli Jiang; Qingbai Wu; Tingjun Zhang; Siru Gao
Within the gas hydrate drilling project in the Qilian Mountain permafrost region, a temperature–depth profile measured from borehole DK-12 in Juhugeng of Muri Coalfield, Tianjun County, Qinghai Province, China, was analyzed to infer recent climate changes. The long-term surface temperature and thermal gradient were retrieved from borehole temperature measurements. The ground surface temperature (GST)
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Applying the index of watershed integrity to the Matanuska–Susitna basin Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-08-27 Kelsey B. Aho; Joseph E. Flotemersch; Scott G. Leibowitz; Matthew A. LaCroix; Marc H. Weber
The Matanuska–Susitna Borough is the fastest growing region in the State of Alaska and is impacted by a number of human activities. We conducted a multiscale assessment of the stressors facing the borough by developing and mapping the Index of Watershed Integrity (IWI) and Index of Catchment Integrity (the latter considers stressors in areas surrounding individual stream segments exclusive of upstream
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Meteorological drivers of interannual variation in transparency of mountain lakes Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-08-19 Mark H. Olson; Janet M. Fischer; Masaki Hayashi; Craig E. Williamson
ABSTRACT In mountain lakes, water transparency is regulated primarily by materials loaded from the surrounding catchment. Consequently, transparency within a lake can vary over time due to meteorological conditions that affect hydrologic inputs. Furthermore, lake responses to these inputs may depend on catchment characteristics. We examined the relationships between meteorological conditions and interannual
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Regional variation in green-up timing along a caribou migratory corridor: Spatial associations with snowmelt and temperature Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-08-11 Christian John; Douglas Miller; Eric Post
ABSTRACT Spring green-up in arctic and alpine systems is predominantly controlled by temperature and snowmelt timing preceding and during the growing season. Variation in the timing of green-up across space is an important aspect of resource variability with which mobile herbivores must contend. Here, we measure the explanatory power of abiotic drivers of green-up in a Low Arctic region of west Greenland
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Intraspecific differentiation in the root system of Potentilla matsumurae along a snow accumulation gradient in mid-altitude alpine environment Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-08-10 Kobayashi Makoto; Gaku Kudo
ABSTRACT Despite its importance for plant survival in cold biomes, little is known about the variation in the morphological traits of root systems of alpine plants. In this study, we investigated the difference in biomass allocation and morphological traits of belowground organs of Potentilla matsumurae between snowbeds and fellfields in an alpine tundra in northern Japan. The fellfields were characterized
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From treeline to species line: Thermal patterns and growth relationships across the krummholz zone of whitebark pine, Sierra Nevada, California, USA Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-08-06 Constance I. Millar; Diane L. Delany; Robert D. Westfall
ABSTRACT A multiyear study of forest-to-alpine ecotones across extensive krummholz zones in whitebark pine (WBP; Pinus albicaulis), Sierra Nevada, California, resolved mean treeline growing season temperature (GST) of 9.3°C, 2.6°C warmer than global thresholds previously described, and mean growing season length of 143 days. Temperatures declined with increasing elevation; GST at the upper krummholz
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Tracking the snow line: Responses to climate change by New Zealand alpine invertebrates Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-07-15 W. G. H. Chinn; T. J. H. Chinn
ABSTRACT We review and test an ecological paradigm that asserts that alpine invertebrate communities may shift upslope with climate warming. Our model couples the end of summer snow line (EOSS) elevation with invertebrate populations in New Zealand’s Southern Alps, using a forty-year data set, from fifty index glaciers. We show the snow line has risen an average 3.7 m a−1. This is equivalent to raising
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Elevational ground/air thermal gradients in the Swiss inner Alpine Valais Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-07-10 Armin Rist; Lotti Roth; Heinz Veit
ABSTRACT The dependence of air temperature on elevation (i.e., its elevational gradient) in the mountains is well known. However, the elevational gradient of near-surface ground temperatures and derived thermal parameters is much less understood. In this study, we investigated how these parameters depend on elevation by one-year temperature measurements along a transect in the Valais Alps (Switzerland)
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A 200-year history of arctic and alpine fungi in North America: Early sailing expeditions to the molecular era Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-07-09 Chance Noffsinger; Cathy L. Cripps; Egon Horak
ABSTRACT Mushrooms and other fleshy fungi are important components of arctic and alpine habitats where they enhance nutrient uptake in plants and replenish poor soils through decomposition. Here we assemble the 200-year (1819–2019) record of their discovery in North America, beginning with early Arctic sailing expeditions, followed by intense taxonomic studies, and concluding with the molecular era
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Surface albedo of alpine lichen heaths and shrub vegetation Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-07-08 Peter Aartsma; Johan Asplund; Arvid Odland; Stefanie Reinhardt; Hans Renssen
ABSTRACT Lichen heaths are declining in abundance while shrubs are increasing their range in alpine and arctic areas due to climate change. This can have a large impact on the surface albedo of these areas. The aim of this article is to quantify the difference in albedo between lichen heaths and shrub-dominated vegetation and the variability within lichen heaths. Several environmental conditions that
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Timing of Little Ice Age maxima and subsequent glacier retreat in northern Troms and western Finnmark, northern Norway Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-06-30 J. R. Leigh; C. R. Stokes; D. J. A. Evans; R. J. Carr; L. M. Andreassen
ABSTRACT Glaciers are important indicators of climate change, and recent observations worldwide document increasing rates of mountain glacier recession. Here we present approximately 200 years of change in mountain glacier extent in northern Troms and western Finnmark, northern Norway. This was achieved through (1) mapping and lichenometric dating of major moraine systems within a subset of the main
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Climate and surging of Donjek Glacier, Yukon, Canada Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-06-03 William Kochtitzky; Dominic Winski; Erin McConnell; Karl Kreutz; Seth Campbell; Ellyn M. Enderlin; Luke Copland; Scott Williamson; Brittany Main; Hester Jiskoot
ABSTRACT Links between climate and glacier surges are poorly understood but are required to enable prediction of surges and mitigation of associated hazards. Here, we investigate the role of snow accumulation, rain, and temperature on surge periodicity, area changes, and timing of surge initiation since the 1930s at Donjek Glacier, Yukon, Canada. Snow accumulation measured in three ice cores collected
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High spatial resolution remote sensing models for landscape-scale CO₂ exchange in the Canadian Arctic Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-06-03 David M. Atkinson; Jacqueline K. Y. Hung; Fiona M. Gregory; Neal A. Scott; Paul M. Treitz
ABSTRACT Climate warming is affecting terrestrial ecosystems in the Canadian Arctic, potentially altering the carbon balance of the landscape and contributing additional CO2 to the atmosphere. High spatial resolution remote sensing data can enhance models of net ecosystem exchange (NEE) and its component fluxes, gross ecosystem exchange (GEE), and ecosystem respiration (ER) by quantifying vegetation
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A mild Younger Dryas recorded in southeastern Alaska Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-05-28 Paul S. Wilcox; Sarah J. Fowell; James F. Baichtal
ABSTRACT Palynological and sedimentological analyses of lacustrine cores from Baker Island, located in southeastern Alaska’s Alexander Archipelago, indicate that the beginning of the Younger Dryas chronozone, between approximately 12,900 cal yr BP and approximately 12,600 cal yr BP, was cooler and drier than modern conditions, based on decreases in the percentages of Pinus (pine) and Tsuga mertensiana
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4-Nonylphenol in Sierra Nevada glaciers, California, USA Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-05-27 Rebecca Lyons; Jonah Lay; Jack Ivey
ABSTRACT Persistent organic pollutants are stored in environmental reservoirs globally. Tracking the mass and movement of these pollutants is critical for assessing environmental health for human and wildlife populations. Recently, glaciers have been identified as secondary reservoirs for persistent organic pollutants. Downstream lakes and rivers have increased risk of exposure with climate change
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The effect of the second-order ionospheric term on GPS positioning in Antarctica Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-05-18 Hang Li; Zemin Wang; Xiangbin Cui; Jingxue Guo; Lin Li; Bo Sun
ABSTRACT Global Positioning System (GPS) signals are delayed when passing through the ionosphere due to an ionospheric refraction effect. The ionospheric-free linear combination of GPS signals can eliminate most of the error caused by the first-order ionospheric term. However, the influence of higher-order ionospheric terms remains, and it should be accounted for when conducting high-precision geodetic
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Modeling past and future variation of glaciers in the Dongkemadi Ice Field on central Tibetan Plateau from 1989 to 2050 Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-05-14 Peihong Shi; Keqin Duan; Kirsten N. Nicholson; Bangshui Han; Neumann Klaus; Junhua Yang
ABSTRACT Glacier mass balance change is among the best indicators of glacier response to climate change. Due to its inaccessibility and limited observation, little is known about the change to the Dongkemadi Ice Field (DIF) in the Tanggula Mountains located in the source region of the Yangtze River in central Tibetan Plateau. Here, an enhanced temperature index–based glacier model considering glacier
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Emergence of steeply stratified permafrost thaw ponds changes zooplankton ecology in subarctic freshwaters Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-05-13 Maxime Wauthy; Milla Rautio
ABSTRACT Climate change and associated permafrost thaw are creating new shallow waterbodies in vast regions of the circumpolar Arctic. These thaw ponds are characterized by high concentrations of colored dissolved organic matter originating from the degrading watershed, inducing a strong vertical thermal and oxygen (O2) stratification. We investigated the zooplankton community and biomass in eight
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Streamflow variability and the role of snowmelt in a marginal snow environment Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-05-04 Shane P. Bilish; J. Nikolaus Callow; Hamish A. McGowan
ABSTRACT Snowmelt in alpine regions supports hydroelectric power generation, water supply, and agricultural production. These regions are warming, and the impact on streamflow of changes in precipitation and the proportion falling as snow is of interest. We investigate the seasonality and interannual variability of streamflow in the Australian Alps, a key location due to the marginal snowpack with
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Seasonal source water and flow path insights from a year of sampling in the Chamkhar Chhu basin of Central Bhutan Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-04-23 Dendup Tshering; Tshewang Dendup; Holly A. Miller; Alice F. Hill; Alana M. Wilson
ABSTRACT Hydrologic processes that control river flow in Bhutan’s Chamkhar Chhu basin are important for understanding water supply vulnerability to downstream populations in a changing climate. Seasonal source waters and flow paths of streamflow of the basin were determined using isotopic and geochemical tracers for water year 2016. Samples including surface water, groundwater, glacier meltwater, and
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Combined effects of early snowmelt and climate warming on mountain lake temperatures and fish energetics Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-04-22 Kyle R. Christianson; Brett M. Johnson
ABSTRACT Mountain regions are experiencing some of the highest air temperature increases and ice cover decreases. However, few studies have examined the effects of climate warming and earlier snowmelt on mountain lake thermal characteristics and energetic implications for fish. We assessed potential climate-induced thermal changes and energetic consequences for cutthroat trout (Oncorhynchus clarkii
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Mineralogy and geochemistry of ferromanganese oxide deposits from the Chukchi Sea in the Arctic Ocean Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-04-07 Yingchun Cui; Xin Liu; Chenguang Liu; Jingjing Gao; Xisheng Fang; Yanguang Liu; Weiguo Wang; Yuansheng Li
ABSTRACT Abundant ferromanganese oxide deposits were recovered from the Chukchi Sea in the Arctic Ocean during the 7th Chinese Arctic Scientific Expedition in August 2016. Representative samples were collected to perform a mineralogical and geochemical analysis and elucidate their origin. Their mineral phases consist of todorokite, buserite, and birnessite, along with a small quantity of detrital minerals
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Above- and belowground responses to long-term herbivore exclusion Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-03-27 Austin Roy; Matthew Suchocki; Laura Gough; Jennie R. McLaren
ABSTRACT Herbivores can play an important role in determining arctic ecosystem function with effects determined in part by herbivore identity. We examined the impact of long-term (twenty-two years) small and large mammal herbivore exclusion in two arctic plant communities in northern Alaska: dry heath (DH) and moist acidic tundra (MAT). Our aims were to examine how herbivore exclusion influences (1)
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Is water an important resource for the snow leopard (Panthera uncia) in periods when terrain is covered with snow? Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-03-26 Dale M. Kikuchi; Kubanychbek Zhumabai Uulu; Koustubh Sharma; Takuya Soma; Kodzue Kinoshita
ABSTRACT Some mammalian species that inhabit cold environments are known to eat snow to fulfill their water requirements. However, there is a potential trade-off between eating snow and drinking water because of the considerable energy that the body invests in warming the ingested snow. It is claimed that the snow leopard (Panthera uncia) eats snow to fulfill its requirement of water, which is why
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About the cover Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-03-23
(2020). About the cover. Arctic, Antarctic, and Alpine Research: Vol. 52, No. 1, pp. 104-104.
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Glacier: Nature and Culture, by Peter G. Knight. London: Reaktion Books, 2019. 223 pp. $24.95 (paperback). ISBN: 978-1-78914-134-4. Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-03-19 John T. Andrews
(2020). Glacier: Nature and Culture, by Peter G. Knight. London: Reaktion Books, 2019. 223 pp. $24.95 (paperback). ISBN: 978-1-78914-134-4. Arctic, Antarctic, and Alpine Research: Vol. 52, No. 1, pp. 103-103.
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Influence of climatic conditions on growth rings of Salix uva-ursi Pursh from the southeastern shore of Hudson Bay, Subarctic Canada Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-03-16 Magdalena Opała-Owczarek; Piotr Owczarek; Ewa Łupikasza; Stéphane Boudreau; Krzysztof Migała
ABSTRACT Over the past decades, warmer air temperature and spatiotemporal changes in the amount and patterns of precipitation have been observed at high latitudes. Such interannual variability in climatic conditions has a strong influence on the dynamics of biological processes regulating terrestrial ecosystems. Dendroclimatology can improve our understanding of the impacts of climate change on vegetation
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Water supply in times of climate change—Tracer tests to identify the catchment area of an Alpine karst spring, Tyrol, Austria Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-03-11 Rafael Schäffer; Ingo Sass; Claus-Dieter Heldmann
ABSTRACT Climate change and glacial retreat are changing the runoff behavior of Alpine springs and streams. For example, in the extremely dry and hot summer of 2018, many springs used for drinking water supply lost up to 50 percent of their average discharge; a few springs have even run dry. In order to ensure drinking water supply in the future, springs featuring large and constantly sufficient discharge
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Soil conditions required for reaction wood formation of drunken trees in a continuous permafrost region Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-02-11 Kazumichi Fujii; Koh Yasue; Yojiro Matsuura; Akira Osawa
ABSTRACT Black spruce trees lean to form “drunken” forest on degrading permafrost; however, the causes of tree leaning on continuous permafrost remain unclear. Leaning events are recorded by reaction wood formation in tree rings, and it remains unclear what soil conditions are required for reaction wood formation of drunken trees. Tree disk morphology and soil hummock properties were examined for fifty
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Plant community responses to warming modified by soil moisture in the Tibetan Plateau Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-02-11 Ahui Peng; Kari Klanderud; Genxu Wang; Li Zhang; Yao Xiao; Yan Yang
ABSTRACT Predicted warming in Tibetan Plateau may have profound effects on plant community structure and function. We used open-top chambers to artificially warm two different plant communities in Tibet from 2012 to 2016. We recorded species richness, vegetation height, and graminoid, forb, legume, and litter cover each year of the experiment and leaf growth and chemical traits of the most dominant
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Alpine plant community diversity in species–area relations at fine scale Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-01-16 George P. Malanson; Emma L. Nelson; Dale L. Zimmerman; Daniel B. Fagre
ABSTRACT Observations of diversity in alpine vegetation appear to be scale dependent. The relations of plant species richness with surface processes and geomorphology have been studied, but patterns of beta diversity are less known. In Glacier National Park, Montana, diversity has been examined within 1 m2 plots and for 16 m2 plots across two ranges, with within-plot and across-range explanatory factors
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Attacked from two fronts: Interactive effects of anthropogenic and biotic disturbances generate complex movement patterns Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-01-15 Salvatore Valente; Anna Skarin; Paolo Ciucci; Alessia Uboni
ABSTRACT Anthropogenic and biotic disturbances have the potential to interact, generating cumulative impacts on animal movement or, alternatively, counterbalancing or masking each other. Despite their importance, those interactions have not been investigated thoroughly. Our study aimed to fill this knowledge gap by assessing the combined effects of a human activity—that is, military exercises—and a
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Ground surface temperature variability and permafrost distribution over mountainous terrain in northern Mongolia Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-01-14 Munkhdavaa Munkhjargal; Gansukh Yadamsuren; Jambaljav Yamkhin; Lucas Menzel
ABSTRACT Permafrost plays an important role in numerous environmental processes at high latitudes and in high mountain areas. The identification of mountain permafrost, particularly in the discontinuous permafrost regions, is challenging due to limited data availability and the high spatial variability of controlling factors. This study focuses on mountain permafrost in a data-scarce environment of
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Hydrological impacts of interannual variations in surface soil freezing processes in the upper Nu–Salween River basin Arct. Antarct. Alp. Res. (IF 1.784) Pub Date : 2020-01-08 Xian Luo; Xuemei Fan; Xuan Ji; Yungang Li
ABSTRACT The upper Nu–Salween River basin in the Tibetan Plateau is mainly covered with seasonal frozen soils. We used daily surface freeze–thaw states, detected from Special Sensor Microwave/Imager (SSM/I) daily brightness temperature data, to analyze the variations in surface freeze–thaw states and the relationship with air temperature. We also examined baseflow to explore the influences of interannual
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