Zobrazeno 1 - 10
of 249
pro vyhledávání: '"John C Priscu"'
Autor:
Hanbyul Lee, Kyuin Hwang, Ahnna Cho, Soyeon Kim, Minkyung Kim, Rachael Morgan-Kiss, John C. Priscu, Kyung Mo Kim, Ok-Sun Kim
Publikováno v:
Environmental Microbiome, Vol 19, Iss 1, Pp 1-15 (2024)
Abstract Background Lake Bonney, which is divided into a west lobe (WLB) and an east lobe (ELB), is a perennially ice-covered lake located in the McMurdo Dry Valleys of Antarctica. Despite previous reports on the microbial community dynamics of ice-c
Externí odkaz:
https://doaj.org/article/5b6d66b27cd8431691ce0b1d31b00092
Autor:
Trista J Vick-Majors, Andrew C Mitchell, Amanda M Achberger, Brent C Christner, John E Dore, Alexander Bryce Michaud, Jill A Mikucki, Alicia M Purcell, Mark L Skidmore, John C Priscu
Publikováno v:
Frontiers in Microbiology, Vol 7 (2016)
Subglacial microbial habitats are widespread in glaciated regions of our planet. Some of these environments have been isolated from the atmosphere and from sunlight for many thousands of years. Consequently, ecosystem processes must rely on energy ga
Externí odkaz:
https://doaj.org/article/3477abe71da346b7bb876ee3a2fd2401
Autor:
Amanda M Achberger, Brent C Christner, Alexander Bryce Michaud, John C Priscu, Mark L Skidmore, Trista J Vick-Majors
Publikováno v:
Frontiers in Microbiology, Vol 7 (2016)
Subglacial Lake Whillans (SLW), located beneath ~800 m of ice on the Whillans Ice Stream in West Antarctica was sampled in January of 2013, providing the first opportunity to directly examine water and sediments from an Antarctic subglacial lake. To
Externí odkaz:
https://doaj.org/article/ee6c6f9421dc431ea8f478653742cf7d
Autor:
Radu Herbei, Alexander L Rytel, W Berry Lyons, Diane M McKnight, Christopher Jaros, Michael N Gooseff, John C Priscu
Publikováno v:
PLoS ONE, Vol 11, Iss 7, p e0159038 (2016)
The McMurdo Dry Valleys constitute the largest ice free area of Antarctica. The area is a polar desert with an annual precipitation of ∼ 3 cm water equivalent, but contains several lakes fed by glacial melt water streams that flow from four to twel
Externí odkaz:
https://doaj.org/article/7a80982bf25b47e5a025831bb48da04f
Autor:
Alicia M Purcell, Jill A Mikucki, Amanda eAchberger, Irina eAlekhina, Carlo eBarbante, Brent Craig Christner, Dhritiman eGhosh, Alexander B Michaud, Andrew C Mitchell, John C Priscu, Reed eScherer, Mark eSkidmore, Trista J Vick-Majors, The WISSARD eScience Team
Publikováno v:
Frontiers in Microbiology, Vol 5 (2014)
Diverse microbial assemblages inhabit subglacial aquatic environments. While few of these environments have been sampled, data reveal that subglacial organisms gain energy for growth from reduced minerals containing nitrogen, iron, and sulfur. Here w
Externí odkaz:
https://doaj.org/article/92ed8ef98e1f434fb545eccc5d33df15
Autor:
Christina L. Davis, Ryan A. Venturelli, Alexander B. Michaud, Jon R. Hawkings, Amanda M. Achberger, Trista J. Vick-Majors, Brad E. Rosenheim, John E. Dore, August Steigmeyer, Mark L. Skidmore, Joel D. Barker, Liane G. Benning, Matthew R. Siegfried, John C. Priscu, Brent C. Christner, the SALSA Science Team
Publikováno v:
ISME Communications, Vol 3, Iss 1, Pp 1-11 (2023)
Abstract Ice streams that flow into Ross Ice Shelf are underlain by water-saturated sediments, a dynamic hydrological system, and subglacial lakes that intermittently discharge water downstream across grounding zones of West Antarctic Ice Sheet (WAIS
Externí odkaz:
https://doaj.org/article/fb43de337f6447d8a56cf6e27a47f8d9
Autor:
Ryan A. Venturelli, Brenna Boehman, Christina Davis, Jon R. Hawkings, Sarah E. Johnston, Chloe D. Gustafson, Alexander B. Michaud, Cyrille Mosbeux, Matthew R. Siegfried, Trista J. Vick‐Majors, Valier Galy, Robert G. M. Spencer, Sophie Warny, Brent C. Christner, Helen A. Fricker, David M. Harwood, Amy Leventer, John C. Priscu, Brad E. Rosenheim, SALSA Science Team
Publikováno v:
AGU Advances, Vol 4, Iss 2, Pp n/a-n/a (2023)
Abstract Projections of Antarctica's contribution to future sea level rise are associated with significant uncertainty, in part because the observational record is too short to capture long‐term processes necessary to estimate ice mass changes over
Externí odkaz:
https://doaj.org/article/dcd6f4badad043bca4fa13aed850b593
Autor:
Devin N. Castendyk, Hilary A. Dugan, Hugh A. Gallagher, Nimish Pujara, Peter T. Doran, John C. Priscu, W. Berry Lyons
Publikováno v:
Limnology and Oceanography Letters, Vol 7, Iss 1, Pp 26-33 (2022)
Abstract Water movement in ice‐covered lakes is known to be driven by wind, sediment heat flux, solar radiation, saline density flows, and advective stream discharge. In large ice‐covered lakes, wind‐induced oscillations have been found to play
Externí odkaz:
https://doaj.org/article/4f8712dc8b574f159abfdecfe7ed8cae
Autor:
John C. Priscu, Jonas Kalin, John Winans, Timothy Campbell, Matthew R. Siegfried, Mark Skidmore, John E. Dore, Amy Leventer, David M. Harwood, Dennis Duling, Robert Zook, Justin Burnett, Dar Gibson, Edward Krula, Anatoly Mironov, Jim McManis, Graham Roberts, Brad E. Rosenheim, Brent C. Christner, Kathy Kasic, Helen A. Fricker, W. Berry Lyons, Joel Barker, Mark Bowling, Billy Collins, Christina Davis, Al Gagnon, Christopher Gardner, Chloe Gustafson, Ok-Sun Kim, Wei Li, Alex Michaud, Molly O. Patterson, Martyn Tranter, Ryan Venturelli, Trista Vick-Majors, Cooper Elsworth
Publikováno v:
Annals of Glaciology, Vol 62, Pp 340-352 (2021)
The Subglacial Antarctic Lakes Scientific Access (SALSA) Project accessed Mercer Subglacial Lake using environmentally clean hot-water drilling to examine interactions among ice, water, sediment, rock, microbes and carbon reservoirs within the lake w
Externí odkaz:
https://doaj.org/article/39e16336c1ca4fa490c7bca21450f9f6
Autor:
YONGQIN LIU, JOHN C. PRISCU, TANDONG YAO, TRISTA J. VICK-MAJORS, ALEXANDER B. MICHAUD, LIANG SHENG
Publikováno v:
Journal of Glaciology, Vol 65, Pp 29-38 (2019)
Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental change. As an alternative to high resolution abundance records, which can be difficult to
Externí odkaz:
https://doaj.org/article/d774f888161248258ad022f389385ead