This paper reports the results of new malacological analyses from a thick tufa sequence at Direndall (Luxembourg). The study is temporally contextualised with radiocarbon dates and an age–depth mod... This paper reports the results of new malacological analyses from a thick tufa sequence at Direndall (Luxembourg). The study is temporally contextualised with radiocarbon dates and an age–depth mod...

Aug 18, 2017 · The debate on ‘where’ temperate trees have survived during the latest glacial maximal (circa 21 000 years ago) is still open. The classic theory is that most species were restricted to refugia in the Balkans, Iberian and Italian peninsula. This is called the ‘southern refugia hypothesis’. Potential glacial refugia within the known geographical range. The almost complete distinction between diploid lineages of D. incarnata s.l. and D. maculata s.l. at allozyme loci suggests that the lineages characterized with a long period of separated history and that gene flow between them did not exist for a long time [18,23]. However ... .

(2004) found glacial refugia in central and eastern Europe for a range of coniferous trees, including some deciduous species. These sites are discussed further below. A detailed analysis of pollen diagrams for Castanea sativa (Krebs et al., 2004) and the construction of a refugium probability index (Krebs et al., 2004) highlight the likelihood Aug 27, 2019 · In particular, high genetic uniqueness could be expected within glacial refugia for multiple species. We aimed to test this for plants in China and whether multi-species hotspots of genetic diversity are good indicators of glacial refugia in this region.

refugia, defined as small areas of local distribution outside the major glacial refugia, are receiving much attention, and the roles they play in maintaining genetic diversity are hotly debated (Provan & Bennett 2008). In contrast to Europe and North America, glaciation in temperate Asia did not involve a unified ice sheet. In Last Glacial Maximum Explained. The Last Glacial Maximum (LGM) was the most recent time during the Last Glacial Period that ice sheets were at their greatest extent. Vast ice sheets covered much of North America, Northern Europe, and Asia and profoundly affected Earth's climate by causing drought, desertification, and a large drop in sea levels. Pleistocene Refugia ? Is there genetic evidence of a Pleistocene refugium? AFLP and cpDNA haplotypes indicate two refugia – southwestern China and east-central China Pleistocene Refugia ? Is there genetic evidence of a Pleistocene refugium? Is there genetic evidence of human movement to Japan and later the world?

The history of the hominin settlement of Europe has always been marked by range expansion and contraction in the face of interglacial-glacial cycles. The last major contraction occurred during the Last Glacial Maximum (LGM) and was manifested culturally in western Europe by the Solutrean technocomplex, during which the surviving human population was especially concentrated in favored areas of ... Timing of coral hiatuses and reduced reef growth rates at Mingulay were synchronous with those occurring across the wider northern European region, which suggests a close relationship between these ecosystems and large-scale shifts in palaeoenvironmental regimes associated with changes to the North Atlantic subpolar gyre

Small areas within the three southern peninsulas of Europe (Spain, Italy and Greece) are highlighted as possible refugia for summer-green trees. Further, areas that have remained poorly known are now proposed as refugia, including the Sakarya-Kerempe region in northern Turkey, the east coast of the Black Sea and the area south of the Caspian Sea. Glacial Refugia The Western Caucasus is an area where important glacial refugia were located. The “Colchis refugium” has been identified already by botanists of the early XX century.

In order to contribute to the debate about southern glacial refugia used by temperate species and more northern refugia used by boreal or cold-temperate species, we examined the phylogeography of a widespread snake species (Vipera berus) inhabiting Europe up to the Arctic Circle. The analysis of the mitochondrial DNA (mtDNA) sequence variation in 1043 bp of the cytochrome b gene and in 918 bp ... Studies on genetic diversity help us to unveil the evolutionary processes of species and populations and can explain several traits of diploid–polyploid complexes such as their distributions, their b... While the cause of the MPT remains elusive, recent geochemical evidence suggests that this δ13C minimum was concurrent with an increased presence of Southern Sourced Waters (SSW) in the South Atlantic, a decrease in Δ[CO32-] in the deep North Atlantic, and a decrease in glacial atmospheric CO2, pointing to increased carbon storage in the deep ...

The influence of Pleistocene glacial refugia on tawny owl genetic diversity and phylogeography in western Europe PATRÍCIA H. BRITO American Museum of Natural History, Ornithology Department, Central Park West at 79th Street, New York, NY 10024, USA Abstract The glacial refugia hypothesis indicates that during the height of the Pleistocene ... Mar 16, 2020 · Genetic structure analysis revealed three distinct clusters that seem to overlap potential glacial refugia and postglacial migration routes of this species. Associations of SNP outliers were ...

Background. This study was performed to investigate the phenotypic, karyomorphological, and habitat environment characteristics of Lilium distichum that grows naturally in South K Glacial lakes that have been formed for a long period of time have a more diverse ecosystem of fauna originating form neighboring tributaries or other glacial refugia. For example, many native species of the great lakes basin entered via the Mississippi basin refugia within the past 14,000 years. [8] Societal Perspectives Jan 09, 2014 · L ate-glacial and post-glacial increases in the number of pollen sites where Fagus was locally present suggests that the area occupied by beech populations expanded exponentially from the glacial refugia for a duration of over 10,000 years, until about 3500 years before present. Magri (2008) In Europe and North America, an extensive network of pollen cores tells us that species now inhabiting boreal and temperate regions had their ice-age refugia south of the ice and permafrost. Post-glacial expansion into new territory was previously suggested to be important in the geographic distribution of population and species genomes12. It ...

Research profile for Jan M. Wójcik (Mammal Research Institute), provided by Rxivist, the site that helps you find the most discussed biology preprints on the internet. A complex scenario of glacial survival in Mediterranean and continental refugia of a temperate continental vole species (Microtus arvalis) in Europe." Journal of Zoological Systematics and Evolutionary Research. Posts about Lower Paleolithic written by egarciasmail. From Science Daily. Research by a University of Southampton archaeologist suggests that early humans, who lived thousands of years before Neanderthals, were able to work together in groups to hunt and slaughter animals as large as the prehistoric elephant.

I’ll be on vacation until October and will probably have little time for my weekly column. I hope to profit from this hiatus to rethink my priorities for the next twelve months. emergence of broad acceptance of high-latitude glacial refugia may appear to constitute a paradigm shift, a recent review (Tzedakis etal., 2013) has claimed that in Europe evidence of glacial refugia has been too readily accepted and that all forms of evidence require careful scrutiny. High-latitude refugia may help resolve the ‘Quaternary To explain the origin of the Icelandic lineage, two alternative scenarios were proposed: (i) postglacial colonization followed by rapid divergence under an elevated mutation rate and (ii) ancient preglacial colonization with survival during multiple glacial events in geothermal refugia and slow divergence under a ‘standard’ mutation rate.

Timing of coral hiatuses and reduced reef growth rates at Mingulay were synchronous with those occurring across the wider northern European region, which suggests a close relationship between these ecosystems and large-scale shifts in palaeoenvironmental regimes associated with changes to the North Atlantic subpolar gyre Glacial Periods in Europe During the quaternary glacial episodes restricted forests Fossil pollen data and macrofossil remains have indicated several small areas in the Iberian, Italian, and Balkan peninsulas, as well as in the tundra-step region of eastern, central, and south western Europe as forest refugia. Of the wealth of scientific studies accumulated during the past two decades in Europe, the ones we understand best are those mostly from higher latitudes, probably because patterns were simplified to a great extent by major losses of diversity during glacial periods. nated from different glacial refugium areas of Europe (I-M170, R-M17 and RM269 from Balkan, Ukrainian refu-gia, respectively), and as Europeans who had originated from Africa (E-SRY4064) and the Middle East (J-12f2) and arrived to Europe through the prolonged gene flow from the Middle East (29).

Sep 13, 2019 · More than two million years ago, glaciers descended on the uppermost portions of North America, Europe and Asia during the Pleistocene Epoch, Earth’s most recent ice age. Tough, vascular plants remained in pockets of glacial refugia, despite extremely harsh conditions. Glacial refugia for summer‐green trees in Europe and south‐west Asia as proposed by ECHAM3 time‐slice atmospheric model simulations (2004) found glacial refugia in central and eastern Europe for a range of coniferous trees, including some deciduous species. These sites are discussed further below. A detailed analysis of pollen diagrams for Castanea sativa (Krebs et al., 2004) and the construction of a refugium probability index (Krebs et al., 2004) highlight the likelihood

May 04, 2012 · Haplogroups J and T evidently started to spread from the Near East into Europe immediately after the peak of the last glaciation, ∼19 ka ago, with major expansions in Europe in the Late Glacial period, ∼16–12 ka ago, signaled in particular by J1c, J1b1a, J2a1, T1a1, T2a1b, and T2f1, and in the immediate postglacial period, ∼10–11 ka ... of glacial refugia [ ]. As ice sheets receded, many species that had been pushed from areas covered by ice, invaded or reinvaded, and many modern species distributions in glaciated regions re ect species dispersal a er glacial events [ ].IncentralUnitedStates,areasofglacialrefugiaexisted mainly south of the glacial maximum [ ]. However, glacial

May 04, 2012 · Haplogroups J and T evidently started to spread from the Near East into Europe immediately after the peak of the last glaciation, ∼19 ka ago, with major expansions in Europe in the Late Glacial period, ∼16–12 ka ago, signaled in particular by J1c, J1b1a, J2a1, T1a1, T2a1b, and T2f1, and in the immediate postglacial period, ∼10–11 ka ... Last Glacial Maximum Explained. The Last Glacial Maximum (LGM) was the most recent time during the Last Glacial Period that ice sheets were at their greatest extent. Vast ice sheets covered much of North America, Northern Europe, and Asia and profoundly affected Earth's climate by causing drought, desertification, and a large drop in sea levels. Combining palaeoenvironmental data, vegetation modelling and the genetic data, we have shown that the long-term isolation in the glacial refugia and the migrational process during the Holocene have played a major role in shaping the modern genetic diversity of P. sylvestris in Europe. of glacial refugia [ ]. As ice sheets receded, many species that had been pushed from areas covered by ice, invaded or reinvaded, and many modern species distributions in glaciated regions re ect species dispersal a er glacial events [ ].IncentralUnitedStates,areasofglacialrefugiaexisted mainly south of the glacial maximum [ ]. However, glacial

Refugia were critically important for species survival in both glacial and interglacial stages of the Quaternary. The classical view of glacial stages is that alpine and arctic plants were widespread in the lowlands of central Europe and around the margins of the continental and alpine ice-sheets, whereas trees were restricted to localised refugial areas in southern Europe and the ... Where are the glacial refugia in Europe? Evidence from pteridophytes Article in Biological Journal of the Linnean Society 66(1):23 - 37 · June 2008 with 141 Reads Effect of simulated emerald ash borer infestation on nitrogen cycling in black ash (Fraxinus nigra) wetlands in northern Minnesota, USA

During the Last Glacial Maximum (LGM; 21 000 years ago), large glaciers and permafrost reached far south in Europe. Trees are traditionally thought to have survived only in scattered Mediterranean refugia (southern refugia hypothesis), but a recent proposal suggests that trees may have been much more widely and northerly distributed (northern ... the last European glaciation when the alpine and coastal species would likely have been co-located in glacial refugia. This work high-lights white clover as an example of allopoly-ploidy-facilitatedniche-expansion,wheretwo ancestorgenomes,adaptedandconfinedto very different and highly specialized environ-ments, expanded to a global presence

Car in park but says reverse

Where are the glacial refugia in Europe? Evidence from pteridophytes Article in Biological Journal of the Linnean Society 66(1):23 - 37 · June 2008 with 141 Reads

Glacial refugia of mammals in Europe: evidence from fossil records A glacial refugium (plural refugia) is a geographic region which made possible the survival of flora and fauna in times of ice ages and allowed for post-glacial re-colonization. Different types of glacial refugia can be distinguished, namely nunatak , peripheral and lowland refugia. [2]

Glacial Refugia The Western Caucasus is an area where important glacial refugia were located. The “Colchis refugium” has been identified already by botanists of the early XX century.

The bank vole has already been the subject of phylogeographic analyses that suggested that glacial refugia located in central and eastern Europe, as opposed to the Mediterranean refugia, made a major contribution to the modern population of this species in Europe (6, 17). The Carpathian Mountains have been proposed as a possible refugial area ...

I’ll be on vacation until October and will probably have little time for my weekly column. I hope to profit from this hiatus to rethink my priorities for the next twelve months.

of glacial refugia [ ]. As ice sheets receded, many species that had been pushed from areas covered by ice, invaded or reinvaded, and many modern species distributions in glaciated regions re ect species dispersal a er glacial events [ ].IncentralUnitedStates,areasofglacialrefugiaexisted mainly south of the glacial maximum [ ]. However, glacial

Glacial refugia synonyms, Glacial refugia pronunciation, Glacial refugia translation, English dictionary definition of Glacial refugia. a mass of slowly moving land ice formed by the accumulation of snow on high ground Not to be confused with: glazier – a person who fits windows with glass...

REVIEW Open Access Extra-Mediterranean refugia: The rule and not the exception? Thomas Schmitt1* and Zoltán Varga2 Abstract Some decades ago, biogeographers distinguished three major faunal types of high importance for Europe: (i) Mediterranean elements with exclusive glacial survival in the Mediterranean refugia, (ii) Siberian elements with ... of glacial refugia [ ]. As ice sheets receded, many species that had been pushed from areas covered by ice, invaded or reinvaded, and many modern species distributions in glaciated regions re ect species dispersal a er glacial events [ ].IncentralUnitedStates,areasofglacialrefugiaexisted mainly south of the glacial maximum [ ]. However, glacial 瘿蜂 mearning in English : cynipids…. click for more detailed English meaning, translation, definition, pronunciation and example sentences. Low genetic diversity within C. taenia suggests that its colonization of Europe is relatively recent. Demographic analyses revealed a history of recent expansion and isolation by distance. Keywords: colonization, glacial refugia, mitochondrial DNA, nested clade phylogeographical analysis, Pleistocene .

The history of the hominin settlement of Europe has always been marked by range expansion and contraction in the face of interglacial-glacial cycles. The last major contraction occurred during the Last Glacial Maximum (LGM) and was manifested culturally in western Europe by the Solutrean technocomplex, during which the surviving human population was especially concentrated in favored areas of ... Aalborg Universitet Phylogeography of the forest-dwelling European pine marten (Martes Martes) new insights into cryptic northern glacial refugia