Permafrost-derived dissolved organic matter composition varies across permafrost end-members in the western Canadian Arctic

Autor: Erin N MacDonald, Suzanne E Tank, Steven V Kokelj, Duane G Froese, Ryan H S Hutchins

Publikováno v: Environmental Research Letters, Vol 16, Iss 2, p 024036 (2021)

Organic matter, upon dissolution into the aqueous state as dissolved organic matter (DOM), can undergo mineralization by microbes. There has been increasing effort to characterize DOM released from thawing permafrost because it may perpetuate a perma

Externí odkaz: https://doaj.org/article/633bfcd4a1f144bbb34bd7ffa35a4833

Non-destructive sampling of ancient insect DNA.

Autor: Philip Francis Thomsen, Scott Elias, M Thomas P Gilbert, James Haile, Kasper Munch, Svetlana Kuzmina, Duane G Froese, Andrei Sher, Richard N Holdaway, Eske Willerslev

Publikováno v: PLoS ONE, Vol 4, Iss 4, p e5048 (2009)

BACKGROUND: A major challenge for ancient DNA (aDNA) studies on insect remains is that sampling procedures involve at least partial destruction of the specimens. A recent extraction protocol reveals the possibility of obtaining DNA from past insect r

Externí odkaz: https://doaj.org/article/c962bdd9f0d54efb8dc65f25dec4899d

Dynamical response of the southwestern Laurentide Ice Sheet to rapid Bølling-Allerød warming

Autor: Sophie L. Norris, Martin Margold, David J. A. Evans, Nigel Atkinson, Duane G. Froese

The climatic transition from the Last Glacial Maximum (LGM) to the early Holocene (ca. 18–12 ka BP) involved rates of temperature change comparable with present-day warming trends. The most rapid recorded changes in temperature occurred during the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07ee0dd1102d0d3e8dac9a0f6496b270
https://doi.org/10.5194/tc-2023-73

Reply to: When did mammoths go extinct?

Autor: Yucheng Wang, Ana Prohaska, Haoran Dong, Adriana Alberti, Inger Greve Alsos, David W. Beilman, Anders A. Bjørk, Jialu Cao, Anna A. Cherezova, Eric Coissac, Bianca De Sanctis, France Denoeud, Christoph Dockter, Richard Durbin, Mary E. Edwards, Neil R. Edwards, Julie Esdale, Grigory B. Fedorov, Antonio Fernandez-Guerra, Duane G. Froese, Galina Gusarova, James Haile, Philip B. Holden, Kristian K. Kjeldsen, Kurt H. Kjær, Thorfinn Sand Korneliussen, Youri Lammers, Nicolaj Krog Larsen, Ruairidh Macleod, Jan Mangerud, Hugh McColl, Marie Kristine Føreid Merkel, Daniel Money, Per Möller, David Nogués-Bravo, Ludovic Orlando, Hannah Lois Owens, Mikkel Winther Pedersen, Fernando Racimo, Carsten Rahbek, Jeffrey T. Rasic, Alexandra Rouillard, Anthony H. Ruter, Birgitte Skadhauge, John Inge Svendsen, Alexei Tikhonov, Lasse Vinner, Patrick Wincker, Yingchun Xing, Yubin Zhang, David J. Meltzer, Eske Willerslev

Publikováno v: Wang, Y, Prohaska, A, Dong, H, Alberti, A, Alsos, I G, Beilman, D W, Bjørk, A A, Cao, J, Cherezova, A A, Coissac, E, De Sanctis, B, Denoeud, F, Dockter, C, Durbin, R, Edwards, M E, Edwards, N R, Esdale, J, Fedorov, G B, Fernandez-Guerra, A, Froese, D G, Gusarova, G, Haile, J, Holden, P B, Kjeldsen, K K, Kjær, K H, Korneliussen, T S, Lammers, Y, Larsen, N K, Macleod, R, Mangerud, J, McColl, H, Merkel, M K F, Money, D, Möller, P, Nogués-Bravo, D, Orlando, L, Owens, H L, Pedersen, M W, Racimo, F, Rahbek, C, Rasic, J T, Rouillard, A, Ruter, A H, Skadhauge, B, Svendsen, J I, Tikhonov, A, Vinner, L, Wincker, P, Xing, Y, Zhang, Y, Meltzer, D J & Willerslev, E 2022, ' Reply to: When did mammoths go extinct? ', Nature, vol. 612, no. 7938, pp. E4-E6 . https://doi.org/10.1038/s41586-022-05417-2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e4532aa4008f8c8f8a8afb14ef1273b
https://pubmed.ncbi.nlm.nih.gov/36450914

Optimization of subsampling, decontamination, and DNA extraction of difficult peat and silt permafrost samples

Autor: Duane G. Froese, Alireza Saidi-Mehrabad, Patrick Neuberger, Brian Lanoil, Maria Cavaco

Publikováno v: Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Scientific Reports

This study aims to act as a methodological guide for contamination monitoring, decontamination, and DNA extraction for peaty and silty permafrost samples with low biomass or difficult to extract DNA. We applied a biological tracer, either only in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3db991d78880d8af07cb71f4dce116b
http://link.springer.com/article/10.1038/s41598-020-71234-0