@article {4940,
	title = {McMurdo Dry Valley lake edge {\textquoteleft}moats{\textquoteright}: The ecological intersection between terrestrial and aquatic polar desert habitat},
	journal = {Antarctic Science},
	year = {2024},
	month = {04/2024},
	pages = {1 - 17},
	abstract = {<p>Aquatic ecosystems - lakes, ponds and streams - are hotspots of biodiversity in the cold and arid environment of Continental Antarctica. Environmental change is expected to increasingly alter Antarctic aquatic ecosystems and modify the physical characteristics and interactions within the habitats that they support. Here, we describe physical and biological features of the peripheral \&lsquo;moat\&rsquo; of a closed-basin Antarctic lake. These moats mediate connectivity amongst streams, lake and soils. We highlight the cyclical moat transition from a frozen winter state to an active open-water summer system, through refreeze as winter returns. Summer melting begins at the lakebed, initially creating an ice-constrained lens of liquid water in November, which swiftly progresses upwards, creating open water in December. Conversely, freezing progresses slowly from the water surface downwards, with water at 1 m bottom depth remaining liquid until May. Moats support productive, diverse benthic communities that are taxonomically distinct from those under the adjacent permanent lake ice. We show how ion ratios suggest that summer exchange occurs amongst moats, streams, soils and sub-ice lake water, perhaps facilitated by within-moat density-driven convection. Moats occupy a small but dynamic area of lake habitat, are disproportionately affected by recent lake-level rises and may thus be particularly vulnerable to hydrological change.</p>},
	keywords = {LTER-MCM, connectivity, ecosystem, ice, microbial mats, transition},
	issn = {0954-1020},
	doi = {10.1017/S0954102024000087},
	url = {https://www.cambridge.org/core/journals/antarctic-science/article/mcmurdo-dry-valley-lake-edge-moats-the-ecological-intersection-between-terrestrial-and-aquatic-polar-desert-habitats/31D94DD51E651603482A3AE6E8A52A57},
	author = {Stone, Michael S. and Devlin, Shawn and Ian Hawes and Kathleen A. Welch and Michael N. Gooseff and Cristina D. Takacs-Vesbach and Rachael M. Morgan-Kiss and Byron Adams and John E. Barrett and John C. Priscu and Peter T. Doran}
}
@phdthesis {5018,
	title = {Metagenomic analysis of Antarctic microbial communities},
	volume = {Ph.D.},
	year = {2024},
	month = {06/2024},
	pages = {136},
	school = {University of New Mexico},
	type = {doctoral},
	address = {Albuquerque, NM, USA},
	abstract = {<p>The research presented in this dissertation focuses on microbial roles in biogeochemical cycling in Antarctic aquatic environments. The major objective of my research was to examine the impact of biotic and abiotic pressures on nutrient cycling in microbially dominated systems. I used three perennially ice covered lakes in the McMurdo Dry Valleys (MDVs) along with subglacial lakes Whillans and Mercer as natural case studies. The MDVs are located in Victoria Land, East Antarctica and have been studied since 1993 as part of the McMurdo Long Term Ecological Research Project. Viruses in the MDVs were shown to be seasonally abundant and have high infection rates. My work built upon this previous research by showing that viruses are also diverse and potentially re-direct host metabolism through auxiliary metabolic genes (AMGs). Subglacial lake Whillans and Mercer lie underneath 800 and 1100 meters of ice respectively beneath the West Antarctic Ice Sheet. Previous studies in subglacial lakes Whillans have shown an active prokaryotic community. Through viral-like particle counts, microscopy, and metagenomics, we established the presence and potential metabolic influence of viruses in both Whillans and Mercer. In MDV lakes have an extensive high-throughput DNA dataset studying microbial communities through the 16S rRNA gene. We used metagenomic sequencing within two MCM lakes at multiple depths to build upon these previous datasets by annotating metagenomically assembled genomes for functional characteristics. This project highlights the lakes\&$\#$39; vertical redox gradient, showing that dominant taxa, nutrient cycling genes, and metabolic potentials change down the water column. The MDVs serve as a biological indicator for climate change in continental Antarctica and functional changes serve as important indicators of climate change. Taken together, this dissertation shows the importance of multi-kingdom microbial function under oligotrophic conditions.</p>},
	keywords = {LTER-MCM, bacteria, biogeochemical cycling, function, metagenomics, virus},
	url = {https://www.proquest.com/docview/3119910585},
	author = {Robinson, David M.},
	editor = {Cristina D. Takacs-Vesbach}
}
@article {4017,
	title = {Microbial Community Dynamics in Two Polar Extremes: The Lakes of the McMurdo Dry Valleys and the West Antarctic Peninsula Marine Ecosystem},
	journal = {BioScience},
	volume = {66},
	year = {2016},
	month = {Jan-10-2016},
	pages = {829 - 847},
	keywords = {LTER-MCM},
	issn = {0006-3568},
	doi = {10.1093/biosci/biw103},
	url = {https://academic.oup.com/bioscience/article-lookup/doi/10.1093/biosci/biw103https://academic.oup.com/bioscience/article/66/10/829/2236137/Microbial-Community-Dynamics-in-Two-Polar-Extremes},
	author = {Bowman, Jeff S. and Trista J. Vick-Majors and Rachael M. Morgan-Kiss and Cristina D. Takacs-Vesbach and Hugh W. Ducklow and John C. Priscu}
}
@article {3952,
	title = {Microbial Community Responses to Increased Water and Organic Matter in the Arid Soils of the McMurdo Dry Valleys, Antarctica},
	journal = {Frontiers in Microbiology},
	volume = {7},
	year = {2016},
	month = {07/2016},
	chapter = {1040},
	keywords = {LTER-MCM},
	doi = {10.3389/fmicb.2016.01040},
	url = {http://journal.frontiersin.org/article/10.3389/fmicb.2016.01040},
	author = {Heather N. Buelow and Winter, Ara S. and David J. Van Horn and John E. Barrett and Michael N. Gooseff and Schwartz, Egbert and Cristina D. Takacs-Vesbach}
}
@phdthesis {1219,
	title = {Microbial diversity and function at aquatic-  terrestrial interfaces in desert ecosystems.},
	volume = {Ph.D.},
	year = {2008},
	school = {University of New Mexico},
	type = {doctoral},
	keywords = {LTER-MCM},
	doi = {LTER},
	author = {Lydia H. Zeglin}
}
