Výsledky vyhledávání

Akademický článek

Delayed postglacial colonization of Betula in Iceland and the circum North Atlantic

Autor: David J Harning, Samuel Sacco, Kesara Anamthawat-Jónsson, Nicolò Ardenghi, Thor Thordarson, Jonathan H Raberg, Julio Sepúlveda, Áslaug Geirsdóttir, Beth Shapiro, Gifford H Miller

Publikováno v: eLife, Vol 12 (2023)

As the Arctic continues to warm, woody shrubs are expected to expand northward. This process, known as ‘shrubification,’ has important implications for regional biodiversity, food web structure, and high-latitude temperature amplification. While

Externí odkaz: https://doaj.org/article/38f1b32a77cf4e3a8da842b71d0138d1

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Akademický článek

Molecular exploration of fossil eggshell uncovers hidden lineage of giant extinct bird

Autor: Alicia Grealy, Gifford H. Miller, Matthew J. Phillips, Simon J. Clarke, Marilyn Fogel, Diana Patalwala, Paul Rigby, Alysia Hubbard, Beatrice Demarchi, Matthew Collins, Meaghan Mackie, Jorune Sakalauskaite, Josefin Stiller, Julia A. Clarke, Lucas J. Legendre, Kristina Douglass, James Hansford, James Haile, Michael Bunce

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-14 (2023)

The evolution and systematics of Madagascar’s extinct elephant birds remains unclear. Here, the authors recover genetic, stable isotope, morphological, and geographic data from fossil eggshell to describe variation among clades, identifying cryptic

Externí odkaz: https://doaj.org/article/a43db5f1d7ee43f6ac6dd6bb1a38b275

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Akademický článek

Rapidly receding Arctic Canada glaciers revealing landscapes continuously ice-covered for more than 40,000 years

Autor: Simon L. Pendleton, Gifford H. Miller, Nathaniel Lifton, Scott J. Lehman, John Southon, Sarah E. Crump, Robert S. Anderson

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)

Shrinking Arctic Canada ice caps are revealing preserved landscapes containing a record of past glacier activity. Here the authors show that 14C ages of plants and cosmogenic 14C concentrations from these landscapes indicate that recently exposed lan

Externí odkaz: https://doaj.org/article/e17e95eb1487438486e4958326cde29c

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Akademický článek

Humans rather than climate the primary cause of Pleistocene megafaunal extinction in Australia

Autor: Sander van der Kaars, Gifford H. Miller, Chris S. M. Turney, Ellyn J. Cook, Dirk Nürnberg, Joachim Schönfeld, A. Peter Kershaw, Scott J. Lehman

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)

Megafaunal extinction in Australia has been attributed to both climate change and human causation. Here, van der Kaarset al. present a 150,000 year record offshore southwest Australia in which they refine the timing and nature of regional ecosystem c

Externí odkaz: https://doaj.org/article/8da9cf817b4844bfbcb7b5f1fa36c2a7

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Akademický článek

Climate change not to blame for late Quaternary megafauna extinctions in Australia

Autor: Frédérik Saltré, Marta Rodríguez-Rey, Barry W. Brook, Christopher N Johnson, Chris S. M. Turney, John Alroy, Alan Cooper, Nicholas Beeton, Michael I. Bird, Damien A. Fordham, Richard Gillespie, Salvador Herrando-Pérez, Zenobia Jacobs, Gifford H. Miller, David Nogués-Bravo, Gavin J. Prideaux, Richard G. Roberts, Corey J. A. Bradshaw

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)

Global megafaunal extinctions took place in the late Quaternary, yet the relative impact of climate and humans in the faunal collapse is unclear. Here, the authors show that megafaunal extinctions in Australia were independent of climate variability

Externí odkaz: https://doaj.org/article/b812af7d8f4d4ae7b09e12b8b25c4507

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