24 results on '"Novenko, Elena Y."'
Search Results
2. LegacyClimate 1.0: a dataset of pollen-based climate reconstructions from 2594 Northern Hemisphere sites covering the last 30 kyr and beyond
- Author
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Herzschuh, Ulrike, primary, Böhmer, Thomas, additional, Li, Chenzhi, additional, Chevalier, Manuel, additional, Hébert, Raphaël, additional, Dallmeyer, Anne, additional, Cao, Xianyong, additional, Bigelow, Nancy H., additional, Nazarova, Larisa, additional, Novenko, Elena Y., additional, Park, Jungjae, additional, Peyron, Odile, additional, Rudaya, Natalia A., additional, Schlütz, Frank, additional, Shumilovskikh, Lyudmila S., additional, Tarasov, Pavel E., additional, Wang, Yongbo, additional, Wen, Ruilin, additional, Xu, Qinghai, additional, and Zheng, Zhuo, additional
- Published
- 2023
- Full Text
- View/download PDF
3. LegacyClimate 1.0: a dataset of pollen-based climate reconstructions from 2594 Northern Hemisphere sites covering the last 30 kyr and beyond
- Author
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Herzschuh, Ulrike, Böhmer, Thomas, Li, Chenzhi, Chevalier, Manuel, Hébert, Raphaël, Dallmeyer, Anne, Cao, Xianyong, Bigelow, Nancy H., Nazarova, Larisa, Novenko, Elena Y., Park, Jungjae, Peyron, Odile, Rudaya, Natalia A., Schlütz, Frank, Shumilovskikh, Lyudmila S., Tarasov, Pavel E., Wang, Yongbo, Wen, Ruilin, Xu, Qinghai, and Zheng, Zhuo
- Abstract
Here we describe LegacyClimate 1.0, a dataset of the reconstruction of the mean July temperature (TJuly), mean annual temperature (Tann), and annual precipitation (Pann) from 2594 fossil pollen records from the Northern Hemisphere, spanning the entire Holocene, with some records reaching back to the Last Glacial Period. Two reconstruction methods, the modern analog technique (MAT) and weighted averaging partial least squares regression (WA-PLS), reveal similar results regarding spatial and temporal patterns. To reduce the impact of precipitation on temperature reconstruction, and vice versa, we also provide reconstructions using tailored modern pollen data, limiting the range of the corresponding other climate variables. We assess the reliability of the reconstructions, using information from the spatial distributions of the root mean squared error in the prediction and reconstruction significance tests. The dataset is beneficial for synthesis studies of proxy-based reconstructions and to evaluate the output of climate models and thus help to improve the models themselves. We provide our compilation of reconstructed TJuly, Tann, and Pann as open-access datasets at PANGAEA (https://doi.org/10.1594/PANGAEA.930512; Herzschuh et al., 2023a). The R code for the reconstructions is provided at Zenodo (https://doi.org/10.5281/zenodo.7887565; Herzschuh et al., 2023b), including the harmonized open-access modern and fossil datasets used for the reconstructions, so that customized reconstructions can be easily established.
- Published
- 2023
4. Mid- and late-Holocene vegetation history, climate and human impact in the forest-steppe ecotone of European Russia: new data and a regional synthesis
- Author
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Novenko, Elena Y., Tsyganov, Andrey N., Rudenko, Olga V., Volkova, Elena V., Zuyganova, Inna S., Babeshko, Kirill V., Olchev, Alexander V., Losbenev, Nikolai I., Payne, Richard J., and Mazei, Yuri A.
- Published
- 2016
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5. Reconstruction of Holocene vegetation, tree cover dynamics and human disturbances in central European Russia, using pollen and satellite data sets
- Author
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Novenko, Elena Y., Eremeeva, Anastasia P., and Chepurnaya, Anna A.
- Published
- 2014
6. Regional pollen-based Holocene temperature and precipitation patterns depart from the Northern Hemisphere mean trends
- Author
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Herzschuh, Ulrike, Böhmer, Thomas, Chevalier, Manuel, Dallmeyer, Anne, Li, Chenzhi, Cao, Xianyong, Hébert, Raphaël, Peyron, Odile, Nazarova, Larisa, Novenko, Elena Y., Park, Jungjae, Rudaya, Natalia A., Schlütz, Frank, Shumilovskikh, Lyudmila S., Tarasov, Pavel E., Wang, Yongbo, Wen, Ruilin, Xu, Qinghai, Zheng, Zhuo, Herzschuh, Ulrike, Böhmer, Thomas, Chevalier, Manuel, Dallmeyer, Anne, Li, Chenzhi, Cao, Xianyong, Hébert, Raphaël, Peyron, Odile, Nazarova, Larisa, Novenko, Elena Y., Park, Jungjae, Rudaya, Natalia A., Schlütz, Frank, Shumilovskikh, Lyudmila S., Tarasov, Pavel E., Wang, Yongbo, Wen, Ruilin, Xu, Qinghai, and Zheng, Zhuo
- Abstract
A mismatch between model- and proxy-based Holocene climate change, known as the Holocene conundrum, may partially originate from the poor spatial coverage of climate reconstructions in, for example, Asia, limiting the number of grid-cells for model-data comparisons. Here we investigate hemispheric, latitudinal, and regional mean time-series as well as anomaly maps of pollen-based reconstructions of mean annual temperature, mean July temperature, and annual precipitation from 1676 records in the Northern Hemisphere extratropics. Temperature trends show strong latitudinal patterns and differ between (sub-)continents. While the circum-Atlantic regions in Europe and eastern North America show a pronounced mid-Holocene temperature maximum, western North America shows only weak changes and Asia mostly a continuous Holocene temperature increase but with strong latitudinal differences. Likewise, precipitation trends show certain regional peculiarities such as the pronounced mid-Holocene optimum between 30 and 40° N in Asia and Holocene increasing trends in Europe and western North America which can all be linked with Holocene changes of the regional circulation pattern linked to temperature change. Given a background of strong regional heterogeneity, we conclude that the calculation of global or hemispheric means which initiated the Holocene conundrum debate should focus more on understanding the spatio-temporal patterns and their regional drivers.
- Published
- 2022
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7. Regional pollen-based Holocene temperature and precipitation patterns depart from the Northern Hemisphere mean trends
- Author
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Herzschuh, Ulrike, primary, Böhmer, Thomas, additional, Chevalier, Manuel, additional, Dallmeyer, Anne, additional, Li, Chenzhi, additional, Cao, Xianyong, additional, Hébert, Raphaël, additional, Peyron, Odile, additional, Nazarova, Larisa, additional, Novenko, Elena Y., additional, Park, Jungjae, additional, Rudaya, Natalia A., additional, Schlütz, Frank, additional, Shumilovskikh, Lyudmila S., additional, Tarasov, Pavel E., additional, Wang, Yongbo, additional, Wen, Ruilin, additional, Xu, Qinghai, additional, and Zheng, Zhuo, additional
- Published
- 2022
- Full Text
- View/download PDF
8. LegacyClimate 1.0: A dataset of pollen-based climate reconstructions from 2594 Northern Hemisphere sites covering the late Quaternary
- Author
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Herzschuh, Ulrike, primary, Böhmer, Thomas, additional, Li, Chenzhi, additional, Chevalier, Manuel, additional, Dallmeyer, Anne, additional, Cao, Xianyong, additional, Bigelow, Nancy H., additional, Nazarova, Larisa, additional, Novenko, Elena Y., additional, Park, Jungjae, additional, Peyron, Odile, additional, Rudaya, Natalia A., additional, Schlütz, Frank, additional, Shumilovskikh, Lyudmila S., additional, Tarasov, Pavel E., additional, Wang, Yongbo, additional, Wen, Ruilin, additional, Xu, Qinghai, additional, and Zheng, Zhuo, additional
- Published
- 2022
- Full Text
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9. The distribution of late-Quaternary woody taxa in northern Eurasia: evidence from a new macrofossil database
- Author
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Binney, Heather A., Willis, Katherine J., Edwards, Mary E., Bhagwat, Shonil A., Anderson, Patricia M., Andreev, Andrei A., Blaauw, Maarten, Damblon, Freddy, Haesaerts, Paul, Kienast, Frank, Kremenetski, Konstantin V., Krivonogov, Sergey K., Lozhkin, Anatoly V., MacDonald, Glen M., Novenko, Elena Y., Oksanen, Pirita, Sapelko, Tatiana V., Väliranta, Minna, and Vazhenina, Ludmila
- Published
- 2009
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10. The Eurasian Modern Pollen Database (EMPD), version 2
- Author
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Université de Lausanne, Swiss National Science Foundation, López Sáez, José Antonio [0000-0002-3122-2744], Davis, Basil A. S., Chevalier, Manuel, Sommer, Philipp, Carter, Vachel A., Finsinger, Walter, Mauri, Achille, Phelps, Leanne N., Zanon, Marco, Abegglen, Roman, Åkesson, Christine M., Alba Sánchez, Francisca, Valsecchi, V., Zanina, Oksana G., Zimny, Marcelina, Scott Anderson, R., Antipina, Tatiana A., Atanassova, Juliana R., Beer, Ruth, Belyanina, Nina I., Blyakharchuk, Tatiana A., Borisova, Olga K., Bozilova, Elissaveta, Bukreeva, Galina, Bunting, M. Jane, Clò, Eleonora, Colombaroli, Daniele, Combourieu-Nebout, N., Desprat, Stéphanie, Rita, Federico di, Djamali, Morteza, Edwards, Kevin J., Fall, Patricia L., Feurdean, Angelica, Fletcher, William J., Florenzano, Assunta, Furlanetto, Giulia, Gaceur, Emna, Galimov, Arsenii T., Galka, Mariusz, García-Moreiras, Iria, Giesecke, Thomas, Grindean, Roxana, Guido, Maria A., Gvozdeva, Irina G., Herzschuh, Ulrike, Hjelle, Kari L., Ivanov, Sergy, Jahns, Susanne, Jankovska, Vlasta, Jiménez-Moreno, Gonzalo, Karpińska‐Kołaczek, Monika, Kitaba, Ikuko, Kolaczek, Piotr, Lapteva, Elena G., Latalowa, Malgorzata, Lebreton, Vincent, Leroy, Suzanne A. G., Leydet, Michelle, Lopatina, Darya A., López Sáez, José Antonio, Lotter, A. F., Marinova, Elena, Matthias, Isabelle, Mavridou, Anastasia, Mercuri, Anna Maria, Mesa-Fernández, Jose Manuel, Mikishin, Yuri A., Milecka, Krystyna, Montanari, Carlo, Morales-Molino, César, Mrotzek, Almut, Muñoz Sobrino, C., Naidina, Olga D., Nakagawa, Takeshi, Nielsen, Anne Birgitte, Novenko, Elena Y., Panajiotidis, Sampson, Panova, Nata K., Papadopoulou, María, Pardoe, Heather S., Pędziszewska, Anna, Petrenko, Tatitana I., Ramos-Román, María J., Ravazzi, Cesare, Rösch, Manfred, Ryabogina, Natalia, Sabariego Ruiz, Silvia, Salonen, J. Sakari, Sapelko, Tatyana V., Schofield, James E., Seppä, Heikki, Shumilovskikh, Lyudmila, Stivrins, Normunds, Stojakowits, Philipp, Svobodova Svitavska, Helena, Święta-Musznicka, Joanna, Tantau, Ioan, Tinner, Willy, Tobolski, Kazimierz, Tonkov, Spassimir, Tsakiridou, Margarita, Université de Lausanne, Swiss National Science Foundation, López Sáez, José Antonio [0000-0002-3122-2744], Davis, Basil A. S., Chevalier, Manuel, Sommer, Philipp, Carter, Vachel A., Finsinger, Walter, Mauri, Achille, Phelps, Leanne N., Zanon, Marco, Abegglen, Roman, Åkesson, Christine M., Alba Sánchez, Francisca, Valsecchi, V., Zanina, Oksana G., Zimny, Marcelina, Scott Anderson, R., Antipina, Tatiana A., Atanassova, Juliana R., Beer, Ruth, Belyanina, Nina I., Blyakharchuk, Tatiana A., Borisova, Olga K., Bozilova, Elissaveta, Bukreeva, Galina, Bunting, M. Jane, Clò, Eleonora, Colombaroli, Daniele, Combourieu-Nebout, N., Desprat, Stéphanie, Rita, Federico di, Djamali, Morteza, Edwards, Kevin J., Fall, Patricia L., Feurdean, Angelica, Fletcher, William J., Florenzano, Assunta, Furlanetto, Giulia, Gaceur, Emna, Galimov, Arsenii T., Galka, Mariusz, García-Moreiras, Iria, Giesecke, Thomas, Grindean, Roxana, Guido, Maria A., Gvozdeva, Irina G., Herzschuh, Ulrike, Hjelle, Kari L., Ivanov, Sergy, Jahns, Susanne, Jankovska, Vlasta, Jiménez-Moreno, Gonzalo, Karpińska‐Kołaczek, Monika, Kitaba, Ikuko, Kolaczek, Piotr, Lapteva, Elena G., Latalowa, Malgorzata, Lebreton, Vincent, Leroy, Suzanne A. G., Leydet, Michelle, Lopatina, Darya A., López Sáez, José Antonio, Lotter, A. F., Marinova, Elena, Matthias, Isabelle, Mavridou, Anastasia, Mercuri, Anna Maria, Mesa-Fernández, Jose Manuel, Mikishin, Yuri A., Milecka, Krystyna, Montanari, Carlo, Morales-Molino, César, Mrotzek, Almut, Muñoz Sobrino, C., Naidina, Olga D., Nakagawa, Takeshi, Nielsen, Anne Birgitte, Novenko, Elena Y., Panajiotidis, Sampson, Panova, Nata K., Papadopoulou, María, Pardoe, Heather S., Pędziszewska, Anna, Petrenko, Tatitana I., Ramos-Román, María J., Ravazzi, Cesare, Rösch, Manfred, Ryabogina, Natalia, Sabariego Ruiz, Silvia, Salonen, J. Sakari, Sapelko, Tatyana V., Schofield, James E., Seppä, Heikki, Shumilovskikh, Lyudmila, Stivrins, Normunds, Stojakowits, Philipp, Svobodova Svitavska, Helena, Święta-Musznicka, Joanna, Tantau, Ioan, Tinner, Willy, Tobolski, Kazimierz, Tonkov, Spassimir, and Tsakiridou, Margarita
- Abstract
The Eurasian (née European) Modern Pollen Database (EMPD) was established in 2013 to provide a public database of high-quality modern pollen surface samples to help support studies of past climate, land cover, and land use using fossil pollen. The EMPD is part of, and complementary to, the European Pollen Database (EPD) which contains data on fossil pollen found in Late Quaternary sedimentary archives throughout the Eurasian region. The EPD is in turn part of the rapidly growing Neotoma database, which is now the primary home for global palaeoecological data. This paper describes version 2 of the EMPD in which the number of samples held in the database has been increased by 60% from 4826 to 8134. Much of the improvement in data coverage has come from northern Asia, and the database has consequently been renamed the Eurasian Modern Pollen Database to reflect this geographical enlargement. The EMPD can be viewed online using a dedicated map-based viewer at https://empd2.github.io and downloaded in a variety of file formats at https://doi.pangaea.de/10.1594/PANGAEA.909130 (Chevalier et al., 2019).
- Published
- 2020
11. The Holocene paleoenvironmental history of Western Caucasus (Russia) reconstructed by multi-proxy analysis of the continuous sediment sequence from Lake Khuko
- Author
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Grachev, Alexei M, primary, Novenko, Elena Y, additional, Grabenko, Evgeniy A, additional, Alexandrin, Mikhail Y, additional, Zazovskaya, Elya P, additional, Konstantinov, Evgeniy A, additional, Shishkov, Vasiliy A, additional, Lazukova, Lyudmila I, additional, Chepurnaya, Anna A, additional, Kuderina, Tatiana M, additional, Ivanov, Maxim M, additional, Kuzmenkova, Natalia V, additional, Darin, Andrei V, additional, and Solomina, Olga N, additional
- Published
- 2020
- Full Text
- View/download PDF
12. The Eurasian Modern Pollen Database (EMPD), version 2
- Author
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Davis, Basil A. S., primary, Chevalier, Manuel, additional, Sommer, Philipp, additional, Carter, Vachel A., additional, Finsinger, Walter, additional, Mauri, Achille, additional, Phelps, Leanne N., additional, Zanon, Marco, additional, Abegglen, Roman, additional, Åkesson, Christine M., additional, Alba-Sánchez, Francisca, additional, Anderson, R. Scott, additional, Antipina, Tatiana G., additional, Atanassova, Juliana R., additional, Beer, Ruth, additional, Belyanina, Nina I., additional, Blyakharchuk, Tatiana A., additional, Borisova, Olga K., additional, Bozilova, Elissaveta, additional, Bukreeva, Galina, additional, Bunting, M. Jane, additional, Clò, Eleonora, additional, Colombaroli, Daniele, additional, Combourieu-Nebout, Nathalie, additional, Desprat, Stéphanie, additional, Di Rita, Federico, additional, Djamali, Morteza, additional, Edwards, Kevin J., additional, Fall, Patricia L., additional, Feurdean, Angelica, additional, Fletcher, William, additional, Florenzano, Assunta, additional, Furlanetto, Giulia, additional, Gaceur, Emna, additional, Galimov, Arsenii T., additional, Gałka, Mariusz, additional, García-Moreiras, Iria, additional, Giesecke, Thomas, additional, Grindean, Roxana, additional, Guido, Maria A., additional, Gvozdeva, Irina G., additional, Herzschuh, Ulrike, additional, Hjelle, Kari L., additional, Ivanov, Sergey, additional, Jahns, Susanne, additional, Jankovska, Vlasta, additional, Jiménez-Moreno, Gonzalo, additional, Karpińska-Kołaczek, Monika, additional, Kitaba, Ikuko, additional, Kołaczek, Piotr, additional, Lapteva, Elena G., additional, Latałowa, Małgorzata, additional, Lebreton, Vincent, additional, Leroy, Suzanne, additional, Leydet, Michelle, additional, Lopatina, Darya A., additional, López-Sáez, José Antonio, additional, Lotter, André F., additional, Magri, Donatella, additional, Marinova, Elena, additional, Matthias, Isabelle, additional, Mavridou, Anastasia, additional, Mercuri, Anna Maria, additional, Mesa-Fernández, Jose Manuel, additional, Mikishin, Yuri A., additional, Milecka, Krystyna, additional, Montanari, Carlo, additional, Morales-Molino, César, additional, Mrotzek, Almut, additional, Muñoz Sobrino, Castor, additional, Naidina, Olga D., additional, Nakagawa, Takeshi, additional, Nielsen, Anne Birgitte, additional, Novenko, Elena Y., additional, Panajiotidis, Sampson, additional, Panova, Nata K., additional, Papadopoulou, Maria, additional, Pardoe, Heather S., additional, Pędziszewska, Anna, additional, Petrenko, Tatiana I., additional, Ramos-Román, María J., additional, Ravazzi, Cesare, additional, Rösch, Manfred, additional, Ryabogina, Natalia, additional, Sabariego Ruiz, Silvia, additional, Salonen, J. Sakari, additional, Sapelko, Tatyana V., additional, Schofield, James E., additional, Seppä, Heikki, additional, Shumilovskikh, Lyudmila, additional, Stivrins, Normunds, additional, Stojakowits, Philipp, additional, Svobodova Svitavska, Helena, additional, Święta-Musznicka, Joanna, additional, Tantau, Ioan, additional, Tinner, Willy, additional, Tobolski, Kazimierz, additional, Tonkov, Spassimir, additional, Tsakiridou, Margarita, additional, Valsecchi, Verushka, additional, Zanina, Oksana G., additional, and Zimny, Marcelina, additional
- Published
- 2020
- Full Text
- View/download PDF
13. LegacyClimate 1.0: A dataset of pollen-based climate reconstructions from 2594 Northern Hemisphere sites covering the late Quaternary.
- Author
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Herzschuh, Ulrike, Böhmer, Thomas, Chenzhi Li, Chevalier, Manuel, Dallmeyer, Anne, Xianyong Cao, Bigelow, Nancy H., Nazarova, Larisa, Novenko, Elena Y., Jungjae Park, Peyron, Odile, Rudaya, Natalia A., Schlütz, Frank, Shumilovskikh, Lyudmila S., Tarasov, Pavel E., Yongbo Wang, Ruilin Wen, Qinghai Xu, and Zhuo Zheng
- Subjects
PANGAEA (Supercontinent) ,FOSSIL pollen ,FOSSILS ,ATMOSPHERIC models ,STATISTICAL hypothesis testing ,POLLEN - Abstract
Here we describe the LegacyClimate 1.0, a dataset of the reconstruction of mean July temperature (T
July ), mean annual temperature (Tann ), and annual precipitation (Pann ) from 2594 fossil pollen records from the Northern Hemisphere spanning the entire Holocene with some records reaching back to the Last Glacial. Two reconstruction methods, the Modern Analogue Technique (MAT) and Weighted-Averaging Partial-Least Squares regression (WA-PLS) reveal similar results regarding spatial and temporal patterns. To reduce the impact of precipitation on temperature reconstruction and vice versa, we also provide reconstructions using tailored modern pollen data limiting the range of the corresponding other climate variables. We assess the reliability of the reconstructions using information from the spatial distributions of the root-mean squared error of prediction and reconstruction significance tests. The dataset is beneficial for climate proxy synthesis studies and to evaluate the output of climate models and thus help to improve the models themselves. We provide our compilation of reconstructed TJuly , Tann , and Pann as open-access datasets at PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.930512; Herzschuh et al., 2021). R code for the reconstructions is provided at Zenodo (https://doi.org/10.5281/zenodo.5910989; Herzschuh et al., 2022), including harmonized open-access modern and fossil datasets used for the reconstructions, so that customized reconstructions can be easily established. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
14. First records of contemporary testate amoeba assemblages from the Kamchatka Peninsula, Russia and potential for palaeoenvironmental reconstruction
- Author
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Payne, Richard J., primary, Bobrov, Anatoly A., additional, Tsyganov, Andrey N., additional, Babeshko, Kirill V., additional, Sloan, Thomas J., additional, Kay, Martin, additional, Kupriyanov, Dmitry A., additional, Surkov, Nikolay V., additional, Novenko, Elena Y., additional, Andreev, Andrey A., additional, and Mazei, Yuri A., additional
- Published
- 2020
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15. First records of contemporary testate amoeba assemblages from the Kamchatka Peninsula, Russia and potential for palaeoenvironmental reconstruction.
- Author
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Payne, Richard J., Bobrov, Anatoly A., Tsyganov, Andrey N., Babeshko, Kirill V., Sloan, Thomas J., Kay, Martin, Kupriyanov, Dmitry A., Surkov, Nikolay V., Novenko, Elena Y., Andreev, Andrey A., and Mazei, Yuri A.
- Subjects
AMOEBA ,PALEOECOLOGY ,PENINSULAS ,BOGS ,WATER table ,WATER depth - Abstract
The Kamchatka Peninsula in the far east of Russia is a substantial landmass that is poorly documented in terms of most elements of biodiversity. Here we provide the first study of modern assemblages of testate amoebae, a widespread group of protists that are particularly abundant in soils. We present a data set of 78 widely distributed samples, including forest, fen, scrub and bog habitats. Testate amoebae are abundant and diverse across Kamchatka with 119 taxa identified. The assemblage is primarily composed of widespread taxa, but rarer occurrences such as Cyclopyxis puteus hint at important biogeographical differences that will require confirmation with molecular data. Assemblages from mineral soils are significantly different from those of peatlands with the former characterized by small idiosome taxa and the latter by larger taxa, often with secretion tests. Water table depth explained significant variance in the peatland samples, supporting the use of testate amoebae in palaeoecological studies. This study adds to our knowledge of the biodiversity of Kamchatka and the global biogeography of protists, and it paves the way for palaeoecological studies to understand long‐term environmental change in this region. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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- View/download PDF
16. The Holocene paleoenvironmental history of Western Caucasus (Russia) reconstructed by multi-proxy analysis of the continuous sediment sequence from Lake Khuko.
- Author
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Grachev, Alexei M, Novenko, Elena Y, Grabenko, Evgeniy A, Alexandrin, Mikhail Y, Zazovskaya, Elya P, Konstantinov, Evgeniy A, Shishkov, Vasiliy A, Lazukova, Lyudmila I, Chepurnaya, Anna A, Kuderina, Tatiana M, Ivanov, Maxim M, Kuzmenkova, Natalia V, Darin, Andrei V, and Solomina, Olga N
- Subjects
- *
SEDIMENT analysis , *ACCELERATOR mass spectrometry , *LAKE sediments , *HOLOCENE Epoch , *POLLEN , *VEGETATION boundaries , *OAK , *LINDENS - Abstract
This paper presents new multi-proxy records of the Holocene environmental and climatic changes in the Western Caucasus revealed from a continuous sediment sequence from mountainous Lake Khuko (Caucasus State Natural Biospheric Reserve, 1744 m a.s.l.). Palaeoecological analyses of a sediment core for grain size, magnetic susceptibility, loss on ignition, and pollen allowed us to determine five principal climatic phases with several subphases since 10.5 ka BP. The age model is based on seven accelerator mass spectrometry 14C dates, supplemented by 210Pb data for the uppermost part of the sediment core. Warm periods (10.5–6.7, 6.7–5.5, 3.5–2.4, 0.8–0.5 ka BP) were characterized by high biological productivity in the lake as indicated by high organic matter content and expansion of forests, typical of modern low and middle mountain zones, as indicated by the increase in abundance of Quercus, Ulmus, Corylus, and Tilia in the pollen assemblages. Cold periods (5.5–3.5, 2.4–0.8, and 0.5 ka BP–present) are marked by a consistent decrease in organic matter content in lake deposits and possibly higher intensity of the catchment erosion. The changes in pollen assemblages (for instance peaks of Abies, Picea, and Pinus) suggested a potential elevational decline in the boundaries of vegetation belts and expansion of high-altitude woodlands. Abrupt changes in the lake ecosystem were identified between 4.2 and 3.5 ka cal BP marked by a short-term variation in sediment regime shown by variation in organic matter content, magnetic susceptibility values, and sediment grain size. This was probably caused by climatic fluctuations in the Western Caucasus region as a result of complex shifts in the ocean-atmosphere system during the 4.2 ka event. Overall, the first Holocene multi-proxy continuous lake sediment record provides new insights into the climate history in the Western Caucasus. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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17. Vegetation dynamics and fire history at the southern boundary of the forest vegetation zone in European Russia during the middle and late Holocene
- Author
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Novenko, Elena Y, primary, Tsyganov, Andrey N, additional, Payne, Richard J, additional, Mazei, Natalia G, additional, Volkova, Elena M, additional, Chernyshov, Viktor A, additional, Kupriyanov, Dmitry A, additional, and Mazei, Yuri A, additional
- Published
- 2017
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18. Vegetation dynamics and fire history at the southern boundary of the forest vegetation zone in European Russia during the middle and late Holocene.
- Author
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Novenko, Elena Y., Tsyganov, Andrey N., Payne, Richard J., Mazei, Natalia G., Volkova, Elena M., Chernyshov, Viktor A., Kupriyanov, Dmitry A., and Mazei, Yuri A.
- Subjects
- *
VEGETATION & climate , *HOLOCENE Epoch , *HUMIFICATION , *POLLEN , *EVAPOTRANSPIRATION - Abstract
Climate and human activity affected significantly the Eurasian on the forest vegetation zone through the Holocene. This paper presents new multi-proxy records of environmental changes at the southern boundary of the mixed coniferous broadleaved forest zone in the east-central part of the East European Plain during the middle and late Holocene. Palaeoecological analyses of a peat core for pollen, charcoal, peat humification, plant macrofossils and testate amoebae with dating using radiocarbon have shown that climate appears to have been a dominant control on vegetation. There is strong evidence for a reduced precipitation–evapotranspiration ratio and high fire frequency during the Holocene thermal maximum (6.9–5.3 ka BP), leading to dominance of Betula–Pinus forests. By contrast subsequent climatic cooling led to the expansion of broadleaved forests and establishment of Picea. Human activities influenced vegetation from the Neolithic onwards but played a role which was secondary to climate until the recent past. Over the last century, human impacts considerably increased because of harvesting of broadleaved trees and contributed to the formation of the current mixed coniferous broadleaved forests. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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- View/download PDF
19. Reconstruction of Holocene vegetation, tree cover dynamics and human disturbances in central European Russia, using pollen and satellite data sets
- Author
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Novenko, Elena Y., primary, Eremeeva, Anastasia P., additional, and Chepurnaya, Anna A., additional
- Published
- 2013
- Full Text
- View/download PDF
20. Weichselian and Holocene palaeoenvironmental history of the Bol'shoy Lyakhovsky Island, New Siberian Archipelago, Arctic Siberia
- Author
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Andreev, Andrei A., Grosse, Guido, Schirrmeister, Lutz, Kuznetsova, Tatiana V., Kuzmina, Svetlana A., Bobrov, Anatoly A., Tarasov, Pavel E., Novenko, Elena Y., Meyer, Hanno, Derevyagin, Aleksandre Y., Kienast, Frank, Bryantseva, Anna, Kunitsky, Viktor V., Andreev, Andrei A., Grosse, Guido, Schirrmeister, Lutz, Kuznetsova, Tatiana V., Kuzmina, Svetlana A., Bobrov, Anatoly A., Tarasov, Pavel E., Novenko, Elena Y., Meyer, Hanno, Derevyagin, Aleksandre Y., Kienast, Frank, Bryantseva, Anna, and Kunitsky, Viktor V.
- Abstract
Cryolithological, ground ice and fossil bioindicator (pollen, diatoms, plant macrofossils, rhizopods, insects, mammal bones) records from Bol'shoy Lyakhovsky Island permafrost sequences (73°20′N, 141°30′E) document the environmental history in the region for the past c. 115 kyr. Vegetation similar to modern subarctic tundra communities prevailed during the Eemian/Early Weichselian transition with a climate warmer than the present. Sparse tundra-like vegetation and harsher climate conditions were predominant during the Early Weichselian. The Middle Weichselian deposits contain peat and peaty soil horizons with bioindicators documenting climate amelioration. Although dwarf willows grew in more protected places, tundra and steppe vegetation prevailed. Climate conditions became colder and drier c. 30 kyr BP. No sediments dated between c. 28.5 and 12.05 14C kyr BP were found, which may reflect active erosion during that time. Herb and shrubby vegetation were predominant 11.6–11.3 14C kyr BP. Summer temperatures were c. 4 °C higher than today. Typical arctic environments prevailed around 10.5 14C kyr BP. Shrub alder and dwarf birch tundra were predominant between c. 9 and 7.6 kyr BP. Reconstructed summer temperatures were at least 4 °C higher than present. However, insect remains reflect that steppe-like habitats existed until c. 8 kyr BP. After 7.6 kyr BP, shrubs gradually disappeared and the vegetation cover became similar to that of modern tundra. Pollen and beetles indicate a severe arctic environment c. 3.7 kyr BP. However, Betula nana, absent on the island today, was still present. Together with our previous study on Bol'shoy Lyakhovsky Island covering the period between about 200 and 115 kyr, a comprehensive terrestrial palaeoenvironmental data set from this area in western Beringia is now available for the past two glacial–interglacial cycles.
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- 2009
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21. Weichselian and Holocene palaeoenvironmental history of the Bol'shoy Lyakhovsky Island, New Siberian Archipelago, Arctic Siberia
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ANDREEV, ANDREI A., primary, GROSSE, GUIDO, additional, SCHIRRMEISTER, LUTZ, additional, KUZNETSOVA, TATIANA V., additional, KUZMINA, SVETLANA A., additional, BOBROV, ANATOLY A., additional, TARASOV, PAVEL E., additional, NOVENKO, ELENA Y., additional, MEYER, HANNO, additional, DEREVYAGIN, ALEKSANDR Y., additional, KIENAST, FRANK, additional, BRYANTSEVA, ANNA, additional, and KUNITSKY, VIKTOR V., additional
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- 2009
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22. Vegetation and climate changes during the Eemian interglacial in Central and Eastern Europe: comparative analysis of pollen data
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VELICHKO, ANDREI A., primary, NOVENKO, ELENA Y., additional, PISAREVA, VALENTINA V., additional, ZELIKSON, ELLA M., additional, BOETTGER, TATJANA, additional, and JUNGE, FRANK W., additional
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- 2008
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23. Vegetation and climate changes during the Eemian interglacial in Central and Eastern Europe: comparative analysis of pollen data.
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Velichko, Andrei A., Novenko, Elena Y., Pisareva, Valentina V., Zelikson, Ella M., Boettger, Tatjana, and Junge, Frank W.
- Subjects
- *
VEGETATION & climate , *POLLEN , *CLIMATE change , *GLACIERS - Abstract
The article discusses pollen data from Central and Eastern Europe and provides insight into the climate and vegetation dynamics throughout the Eemian interglacial (including preceding and succeeding transitional phases). Three sections with high resolution pollen records are presented. Comparison of the data indicates that the range of climatic and environmental changes increased from west to east, whereas the main phases of vegetation development appear to have been similar throughout the latitudinal belt. At the interglacial optimum, the vegetation in both Central and Eastern Europe was essentially homogeneous. An abrupt change marks the Saalian/Eemian boundary (transition from OIS 6 to OIS 5e), where environmental fluctuations were similar to those detected at the transition from the Weichselian to the Holocene (Allerφd and Dryas 3). Transition from the Eemian to the Weichselian was gradual in the western part of the transect, with forest persisting. In the east, fluctuations of climate and vegetation were more dramatic; forest deteriorated and was replaced by cold open landscapes. [ABSTRACT FROM AUTHOR]
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- 2005
- Full Text
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24. The Eurasian Modern Pollen Database (EMPD), version 2
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Davis, Basil A. S., Chevalier, Manuel, Sommer, Philipp, Carter, Vachel A., Finsinger, Walter, Mauri, Achille, Phelps, Leanne N., Zanon, Marco, Abegglen, Roman, Åkesson, Christine M., Alba-Sánchez, Francisca, Anderson, R. Scott, Antipina, Tatiana G., Atanassova, Juliana R., Beer, Ruth, Belyanina, Nina I., Blyakharchuk, Tatiana A., Borisova, Olga K., Bozilova, Elissaveta, Bukreeva, Galina, Bunting, M. Jane, Clò, Eleonora, Colombaroli, Daniele, Combourieu-Nebout, Nathalie, Desprat, Stéphanie, Di Rita, Federico, Djamali, Morteza, Edwards, Kevin J., Fall, Patricia L., Feurdean, Angelica, Fletcher, William, Florenzano, Assunta, Furlanetto, Giulia, Gaceur, Emna, Galimov, Arsenii T., Gałka, Mariusz, García-Moreiras, Iria, Giesecke, Thomas, Grindean, Roxana, Guido, Maria A., Gvozdeva, Irina G., Herzschuh, Ulrike, Hjelle, Kari L., Ivanov, Sergey, Jahns, Susanne, Jankovska, Vlasta, Jiménez-Moreno, Gonzalo, Karpińska-Kołaczek, Monika, Kitaba, Ikuko, Kołaczek, Piotr, Lapteva, Elena G., Latałowa, Małgorzata, Lebreton, Vincent, Leroy, Suzanne, Leydet, Michelle, Lopatina, Darya A., López-Sáez, José Antonio, Lotter, André F., Magri, Donatella, Marinova, Elena, Matthias, Isabelle, Mavridou, Anastasia, Mercuri, Anna Maria, Mesa-Fernández, Jose Manuel, Mikishin, Yuri A., Milecka, Krystyna, Montanari, Carlo, Morales-Molino, César, Mrotzek, Almut, Muñoz Sobrino, Castor, Naidina, Olga D., Nakagawa, Takeshi, Nielsen, Anne Birgitte, Novenko, Elena Y., Panajiotidis, Sampson, Panova, Nata K., Papadopoulou, Maria, Pardoe, Heather S., Pędziszewska, Anna, Petrenko, Tatiana I., Ramos-Román, María J., Ravazzi, Cesare, Rösch, Manfred, Ryabogina, Natalia, Sabariego Ruiz, Silvia, Salonen, J. Sakari, Sapelko, Tatyana V., Schofield, James E., Seppä, Heikki, Shumilovskikh, Lyudmila, Stivrins, Normunds, Stojakowits, Philipp, Svobodova Svitavska, Helena, Święta-Musznicka, Joanna, Tantau, Ioan, Tinner, Willy, Tobolski, Kazimierz, Tonkov, Spassimir, Tsakiridou, Margarita, Valsecchi, Verushka, Zanina, Oksana G., and Zimny, Marcelina
- Subjects
15. Life on land ,580 Plants (Botany) - Abstract
The Eurasian (née European) Modern Pollen Database (EMPD) was established in 2013 to provide a public database of high-quality modern pollen surface samples to help support studies of past climate, land cover, and land use using fossil pollen. The EMPD is part of, and complementary to, the European Pollen Database (EPD) which contains data on fossil pollen found in Late Quaternary sedimentary archives throughout the Eurasian region. The EPD is in turn part of the rapidly growing Neotoma database, which is now the primary home for global palaeoecological data. This paper describes version 2 of the EMPD in which the number of samples held in the database has been increased by 60 % from 4826 to 8134. Much of the improvement in data coverage has come from northern Asia, and the database has consequently been renamed the Eurasian Modern Pollen Database to reflect this geographical enlargement. The EMPD can be viewed online using a dedicated map-based viewer at https://empd2.github.io and downloaded in a variety of file formats at https://doi.pangaea.de/10.1594/PANGAEA.909130 (Chevalier et al., 2019).
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