Exploring biological constraints on the glacial history of Antarctica

Convey, Peter; Stevens, Mark I.; Hodgson, Dominic A.; Smellie, John L.; Hillenbrand, Claus‐Dieter; Barnes, David K. A.; Clarke, Andrew; Pugh, Philip; Linse, Katrin; Cary, S. Craig

doi:10.1016/j.quascirev.2009.08.015

Cited by 167 publications

(132 citation statements)

References 132 publications

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“…In a review of European Holocene bryophyte history, Kyrkjeeide et al (2014) found no cases of unambiguous evidence for in situ survival within the area of the Scandinavian ice sheet. This is in contrast to evidence of in situ survival of Antarctic populations of the moss Bryum argenteum (Pisa et al 2014) as well as an increasingly wide range of Antarctic microorganisms and invertebrates (Convey et al 2008(Convey et al , 2009Pointing et al 2015).…”

Section: Could Bryophytes Have Persisted In Situ?contrasting

confidence: 88%

Future directions and priorities for Arctic bryophyte research

et al. 2017

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The development of evidence-based international strategies for the conservation and management of Arctic ecosystems in the face of climate change is hindered by critical knowledge gaps in Arctic floristic diversity and evolution. Particularly poorly studied are the bryophytes, which dominate the vegetation across vast areas of the Arctic and consequently play an important role in global biogeochemical cycles. Currently, much of what is known about Arctic floristic evolution is based on studies of vascular plants. Bryophytes, however, possess a number of features, such as poikilohydry, totipotency, several reproductive strategies, and the ability to disperse through microscopic diaspores, that may cause their responses to Arctic environments to differ from those of the vascular plants. Here we discuss several priority areas identified in the Arctic Council's "Arctic Biodiversity Assessment" that are necessary to illuminate patterns of Arctic bryophyte evolution and diversity, including dispersal, glacial refugia, local adaptation, and ecological interactions with bryophyte-associated microbiomes. A survey of digitally available herbarium data archived in the largest online aggregate, GBIF, across the Arctic to boreal zones indicates that sampling coverage of mosses is heterogeneous and relatively sparse in the Arctic sensu stricto. A coordinated international effort across the Arctic will be necessary to address knowledge gaps in Arctic bryophyte diversity and evolution in the context of ongoing climate change.Key words: biodiversity, dispersal, local adaptation, microbiome, phylogeography.

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Section: Could Bryophytes Have Persisted In Situ?contrasting

confidence: 88%

Future directions and priorities for Arctic bryophyte research

et al. 2017

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“…Actualmente, existe gran evidencia que demuestra como muchas especies experimentaron marcados y rápidos cambios latitudinales como respuesta al avance y retroceso de los hielos (Provan & Bennett, 2008;Marko et al 2010). Muchos estudios han demostrado el impacto de los procesos glaciales del Cuaternario sobre las dinámicas poblacionales y la demografía de organismos en el Océano Austral (Convey et al 2009;Fraser et al 2009Fraser et al , 2010Allcock & Strugnell, 2012;González-Wevar et al 2012a). El registro fósil y los datos biogeográficos indican que la mayoría de la biota, y particularmente aquella de altas latitudes, habrían persistido en refugios ubicados en latitudes menores donde las condiciones climáticas habrían sido menos extremas (Hewitt, 2000;Provan & Bennett, 2008).…”

Section: Discussionunclassified

Patrones de diversidad y estructura genética en especies antárticas y subantárticas de Nacella (Nacellidae)

González‐Wevar

Hüne

Rosenfeld

et al. 2016

Anales Instituto Patagonia (Chile)

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“…Genetic evidence showed recent (re)colonizations of the sub-Antarctic islands by several taxa that drifted with the strong eastward flow of the Antarctic Circumpolar Current [6,44]. However, current reconstructions of LGM conditions lack the spatial resolution to unequivocally detect the number and geographical distribution of all glacial refugia [45]. In particular, it is not clear whether ice-free patches existed in the Crozet archipelago during the LGM [7].…”

Section: (B) King Penguin Population History During the Last Glacial mentioning

confidence: 99%

King penguin demography since the last glaciation inferred from genome-wide data

et al. 2014

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How natural climate cycles, such as past glacial/interglacial patterns, have shaped species distributions at the high-latitude regions of the Southern Hemisphere is still largely unclear. Here, we show how the post-glacial warming following the Last Glacial Maximum (ca 18 000 years ago), allowed the (re)colonization of the fragmented sub-Antarctic habitat by an upperlevel marine predator, the king penguin Aptenodytes patagonicus. Using restriction site-associated DNA sequencing and standard mitochondrial data, we tested the behaviour of subsets of anonymous nuclear loci in inferring past demography through coalescent-based and allele frequency spectrum analyses. Our results show that the king penguin population breeding on Crozet archipelago steeply increased in size, closely following the Holocene warming recorded in the Epica Dome C ice core. The following population growth can be explained by a threshold model in which the ecological requirements of this species (year-round ice-free habitat for breeding and access to a major source of food such as the Antarctic Polar Front) were met on Crozet soon after the Pleistocene/Holocene climatic transition.

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Exploring biological constraints on the glacial history of Antarctica

Cited by 167 publications

References 132 publications

Future directions and priorities for Arctic bryophyte research

Future directions and priorities for Arctic bryophyte research

Patrones de diversidad y estructura genética en especies antárticas y subantárticas de Nacella (Nacellidae)

King penguin demography since the last glaciation inferred from genome-wide data

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