User:Icelover95/Alpine lake/Bibliography

Bibliography

• This information is from the US Park Service and provides information about high alpine tree species that are found across the US. Although not a comprehensive list, it provides key species and gives information regarding climate change impacts on the species.
• This article investigates the "fundamental rules of life" and how these necessities are effected by a warming world. The four key rules of life the authors describe are 1) that enzyme functions are temperature-dependent, 2) solar radiation affects on organisms and ecosystems are wavelength dependent, 3) life is stoichiometry-guided, and 4) life aims to maximize resources that are limited.
• This article characterizes the benthic macroinvertebrate communities and measures environmental variables to determine drivers of community structure in 28 alpine lakes within Hohe Tauern National Park in Austria.
• This study describes the response of an alpine lake to natural and anthropogenic forcing over the past 500 years, providing evidence for two main phases in alpine lake evolution and using historical and chemical data to ascertain chironomid and diatom community assemblage changes.
• This study investigates lake sediment phosphorus records to derive paleo-proxies of nutrient levels. Mineralized phosphorus is used to detect glacial sources of nutrients to the lake and indicate cooling or warming events in the Coast Mountains of British Columbia.
• Here, geomagnetic and variations in magnetic minerals are used as a proxy for environmental change (and also to detect changes in Earth's magnetic field). Higher amounts of detrital (sedimentary rocks transported by gravity, wind, water, ice, or wind) indicates higher rates of erosion, likely from advancing and moving glaciers during the Pleistocene.
• This study reconstructed alpine lake formation from the Little Ice Age to the present (2016). Over 1100 glacial lakes had formed in during this time frame with nearly 1000 of them still existing today. They found evidence for rapid lake formation starting in the mid-20th century which correlates with increasing temperatures.
• This studies investigates changes in diatom concentrations and species assemblages associated to warming atmospheric temperatures. These observed changes in diatoms represent changes to the stability of thermal stratification and duration of ice-free periods.
• This chapter describes common algae, zoobenthos, and fish in alpine water systems and the unique structures and traits that allow them to thrive in alpine systems.
• This article utilizes paleoecological reconstructions of alpine lakes to assess shifts in pH. The data made it clear that even twenty years ago, changing climate patterns resulting in smaller ice-formation windows were coupled to pH shifts as a result of temperature's effects on alkalinity.
• This article analyzed the differences in modern and subfossil community structures (subfossils of before and after non-native fish introduction) of a high-mountain lake, finding evidence of marked decreases in biodiversity and highlighting the importance of understanding the effect of human-induced change when attempting to reconstruct historical climate regimes.
• Here, brook trout from a high-mountain lake are employed as a sentinel organism, useful in detecting environmental contamination in a pristine environment, and examined for oxidative stress in relation to changing environmental conditions, notably an increase in pollutants.
• This article uses macrobenthic invertebrates as bioindicators to examine the accumulation of trace elements in once pristine but recently anthropogenically impacted alpine lakes. Further, two alpine lakes are compared across multiple seasons to disentangle seasonal variation. Altogether, this is the first study to use macroinvertebrates to monitor trace element accumulation in alpine lakes.

• This article examines changing ice phenology in a few connected alpine lakes in Colorado. They find that ice-free periods increased by roughly 7 days in 33 years. Rainfall, snow, and air temperature all played a role. Most major ion concentrations were negatively correlated with ice-off date, but nitrate and silicon were not correlated. Chlorophyll-a also decreased with later ice-off date. They concluded that yearly hydrology plays a large role in nutrient and tracer content in alpine lakes.
• Someone can claim this if they want to focus on carbon - Kaelan
• Someone can claim this if they want to focus on carbon - Kaelan
• Someone can claim this if they want to focus on carbon/oxygen - Kaelan

• observations of internal seiching in Alpachner See with links to Richardson number and vertical diffusivity, 2nd vertical mode is resonant with diurnal winds

• This study is motivated by an assumption (supported in other sources) that a transition from a dimictic to monomictic regime would affect annual oxygen and (therefore) phosphorus cycles. The study uses 3 alpine lakes in Austria (~500 m a.s.l.) with oligotrophic to oligo-mesotrophic indices. They found that surface temperatures rose since 1975, but hypolimnion temperatures only increased in the deepest lake. Overall, stratification/stability increased in all lakes (+30 days between onset and termination of stratified period since 1975). More stratification led to more hypoxia/anoxia, which led to more release of phosphorus from sediments (not sure what the mechanism there is). The specific response of each lake was linked to size/depth.

• turbidity plays a large role in determining light availability in alpine lakes, glacial suspensoids tend to be very light (don't settle) and reflective, weather over watershed affects sediment input (hot/dry leads to more sediment when it rains), cooled precipitation running across glacier can disrupt lake stratification, soil is organic poor and high in minerals, groundwater as water source, glacial flour, storm winds less effective than water input at changing lake dynamics

• This paper studied temperature of 45 alpine lakes in the Austrian Alps. They found that the altitude of the lake is critical to its response to climate change due to sensitivity to ice cover. Low-lying lakes do not freeze, and are therefore insensitive to regional temperature changes. High elevation lakes freeze entirely, so the same is true. Lakes for which ice cover is marginal are most susceptible to changes in their thermal characteristics. The relatively small size of alpine lakes makes them even more sensitive to climatic changes. Important forcing for alpine lakes: air temperature, wind, shading, persistent snow-melt in catchment.

• links watershed characteristics to lake DOC, alpine lakes have low DOC due to steep topography, poor soil, low vegetation/wetlands

• v Example of a polymictic-cold alpine lake with links to catchment sediments and turbidity

• Sedimentation in a glacier-fed alpine lake, description of currents and Rossby number

• Wonderful review paper of lake stratification and holomixis/meromixis

• Description of Lake Cadagno which is meromictic due to natural saline injection from springs

• limnological EOS

• This study presents the results of chironomid community structure characterizations for 89 alpine lakes, concluding that these species increasingly dominate colder and harsher climates at higher altitudes, and the key environmental factors related to community structure after altitude and temperature were pH and available substratum.
• This study evaluates the mediating role of UV solar radiation in alpine lakes, suggesting that this environmental parameter is crucial at higher altitudes and increasing water transparency and concluding that heterotrophic organisms are more sensitive to this parameter than phytoplankton. Moving forward, the anthropogenic influences on UV radiation through climatic warming would need to be incorporated into an understanding of the adaptive capacity of these alpine lake organisms.
• This study evaluates the relative importance of regional and local factors that include climate, connectivity, and lake features on community organization and individual functional traits, ultimately finding a stronger association to climate drivers than by more direct human-induced change such as introduced species or land-use, suggesting that these species could be used successfully as bioindicators.

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