Hideaki Motoyama

• DNA analysis for section identification of individual Pinus pollen grains from Belukha glacier, Altai Mountains, Russia

  Open Access•Fumio Nakazawa, Jun Uetake et al.•ARTICLE•Environmental Research Letters•2013

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  Pollen taxon in sediment samples can be identified by analyzing pollen morphology. Identification of related species based on pollen morphology is difficult and is limited primarily to genus or family. Because pollen grains of various ages are preserved at below 0 °C in glaciers and thus are more likely to remain intact or to suffer little DNA fragmentation, genetic information from such pollen grains should enable identification of plant taxa be…

• Two ice-core δ18O records from Svalbard illustrating climate and sea-ice variability over the last 400 years

  Open Access•Elisabeth Isaksson, Jack Kohler et al.•ARTICLE•The Holocene•2005•Referências: 2

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  Ice cores from the relatively low-lying ice caps in Svalbard have not been widely exploited in climatic studies owing to uncertainties about the effect of meltwater percolation. However, results from two new Svalbard ice cores, at Lomonosovfonna and Austfonna, have shown that with careful site selection, high-resolution sampling and multiple chemical analyses it is possible to recover ice cores from which part of the annual signals are preserved,…

• Two ice-core δ18O records from Svalbard illustrating climate and sea-ice variability over the last 400 years

  Open Access•Elisabeth Isaksson, Jack Kohler et al.•ARTICLE•The Holocene•2005•Referências: 2

  Incluir item

  Ice cores from the relatively low-lying ice caps in Svalbard have not been widely exploited in climatic studies owing to uncertainties about the effect of meltwater percolation. However, results from two new Svalbard ice cores, at Lomonosovfonna and Austfonna, have shown that with careful site selection, high-resolution sampling and multiple chemical analyses it is possible to recover ice cores from which part of the annual signals are preserved,…

• DNA analysis for section identification of individual Pinus pollen grains from Belukha glacier, Altai Mountains, Russia

  Open Access•Fumio Nakazawa, Jun Uetake et al.•ARTICLE•Environmental Research Letters•2013

  Incluir item

  Pollen taxon in sediment samples can be identified by analyzing pollen morphology. Identification of related species based on pollen morphology is difficult and is limited primarily to genus or family. Because pollen grains of various ages are preserved at below 0 °C in glaciers and thus are more likely to remain intact or to suffer little DNA fragmentation, genetic information from such pollen grains should enable identification of plant taxa be…

Climate change and permafrost (2 obras) · Antarctic sea ice (1 obra) · Arctic and Antarctic ice dynamics (1 obra) · Arctic ice pack (1 obra) · Biology (1 obra) · Botany (1 obra) · Climatology (1 obra) · Cryosphere (1 obra) · Cryospheric studies and observations (1 obra) · Genus (1 obra)