Zobrazeno 1 - 10
of 127
pro vyhledávání: '"D. O'Beirne"'
Autor:
Molly D. O’Beirne, Wesley P. Scott, Sergio Contreras, A. Araneda, E. Tejos, J. Moscoso, Josef P. Werne
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Quantitative reconstructions of past continental climates are vital for understanding contemporary and past climate change. Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are unique bacterial lipids that have been proposed as universal pale
Externí odkaz:
https://doaj.org/article/f844b2042c59422b9962b7dc9a50ac1a
Autor:
Poppy J. Hesketh-Best, Alice Bosco-Santos, Sofia L. Garcia, Molly D. O’Beirne, Josef P. Werne, William P. Gilhooly, Cynthia B. Silveira
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-12 (2023)
Abstract Viral infections modulate bacterial metabolism and ecology. Here, we investigated the hypothesis that viruses influence the ecology of purple and green sulfur bacteria in anoxic and sulfidic lakes, analogs of euxinic oceans in the geologic p
Externí odkaz:
https://doaj.org/article/7915863e751248239977e027db30968d
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
The impacts of climate change on the Great Lakes’ ecosystems compared to historical records are unclear. Here, using paleolimnological evidence, the authors show that Lake Superior experienced a slow increase in productivity throughout the Holocene
Externí odkaz:
https://doaj.org/article/4e72e847eb544626a3c254e06f548489
Publikováno v:
Journal of Paleolimnology. 64:405-417
We examined diatom assemblages in a sediment core from Lake Superior (Canada/USA) that spans the interval ~ 500–1350 CE and includes the Medieval Climate Anomaly (MCA), 950–1250 CE. We sought to determine whether diatom assemblages responded to c
Autor:
Molly D. O'Beirne, Robert Sparkes, Trinity L. Hamilton, Bart E. van Dongen, William P. Gilhooly, Josef P. Werne
Publikováno v:
Organic Geochemistry. 168:104431
Autor:
Michael D. Himes, Joseph Harrington, Adam D. Cobb, Atılım Güneş Baydin, Frank Soboczenski, Molly D. O’Beirne, Simone Zorzan, David C. Wright, Zacchaeus Scheffer, Shawn D. Domagal-Goldman, Giada N. Arney
Publikováno v:
The Planetary Science Journal. 3:91
Atmospheric retrieval determines the properties of an atmosphere based on its measured spectrum. The low signal-to-noise ratio of exoplanet observations require a Bayesian approach to determine posterior probability distributions of each model parame
Publikováno v:
Limnological Review; Volume 20; Issue 4; Pages: 219-227
Limnological Review, Vol 20, Iss 4, Pp 219-227 (2020)
Limnological Review, Vol 20, Iss 4, Pp 219-227 (2020)
Mahoney Lake is a small, meromictic saline lake in south-central British Columbia noted for its unique layer of purple sulfur bacteria. First examined in 1969, this lake has undergone physical, chemical, biological, and pre-historical research to gen
Autor:
D. O’Beirne
Publikováno v:
Acta Horticulturae. :1-10
Publikováno v:
Chemical Geology. 481:18-26
Determining the concentration and isotopic composition of elemental sulfur in modern and ancient environments is essential to improved interpretation of the mechanisms and pathways of sulfur utilization in biogeochemical cycles. Elemental sulfur can
Autor:
Sergei Katsev, Molly D. O'Beirne, Thomas C. Johnson, Euan D. Reavie, Robert E. Hecky, Josef P. Werne
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Nature Communications
Nature Communications
Anthropogenic climate change has the potential to alter many facets of Earth's freshwater resources, especially lacustrine ecosystems. The effects of anthropogenic changes in Lake Superior, which is Earth's largest freshwater lake by area, are not we