Articles | Volume 20, issue 11
https://doi.org/10.5194/cp-20-2473-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-20-2473-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Nov 2024
Research article |
| 11 Nov 2024
| 11 Nov 2024
The Indo–Pacific Pollen Database – a Neotoma constituent database
Annika V. Herbert
CORRESPONDING AUTHOR
Department of Archaeology and Natural History, Australian National University, Canberra, ACT 2601, Australia
Australian Research Council Centre of Excellence in Australian Biodiversity and Heritage, Australian National University, Canberra, ACT 2601, Australia
Australian Research Council Centre of Excellence for Indigenous and Environmental Histories and Futures, Australian National University, Canberra, ACT 2601, Australia
Simon G. Haberle
Department of Archaeology and Natural History, Australian National University, Canberra, ACT 2601, Australia
Australian Research Council Centre of Excellence in Australian Biodiversity and Heritage, Australian National University, Canberra, ACT 2601, Australia
Australian Research Council Centre of Excellence for Indigenous and Environmental Histories and Futures, Australian National University, Canberra, ACT 2601, Australia
Suzette G. A. Flantua
Department of Biological Sciences, University of Bergen, Bjerknes Centre for Climate Research, 5020 Bergen, Norway
Ondrej Mottl
Department of Biological Sciences, University of Bergen, Bjerknes Centre for Climate Research, 5020 Bergen, Norway
Center for Theoretical Study, Charles University, Jilská 1, 11000 Prague 1, Czechia
Department of Botany, Faculty of Science, Charles University, Benátská 2, 12801 Prague, Czechia
Jessica L. Blois
Department of Life and Environmental Sciences, University of California-Merced, Merced, CA 95343, USA
John W. Williams
Department of Geography and Center for Climatic Research, University of Wisconsin, Madison, WI 53706, USA
Adrian George
Department of Geography and Center for Climatic Research, University of Wisconsin, Madison, WI 53706, USA
Geoff S. Hope
Department of Archaeology and Natural History, Australian National University, Canberra, ACT 2601, Australia
deceased
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Andria Dawson, John W. Williams, Marie-José Gaillard, Simon J. Goring, Behnaz Pirzamanbein, Johan Lindstrom, R. Scott Anderson, Andrea Brunelle, David Foster, Konrad Gajewski, Dan G. Gavin, Terri Lacourse, Thomas A. Minckley, Wyatt Oswald, Bryan Shuman, and Cathy Whitlock
Clim. Past Discuss., https://doi.org/10.5194/cp-2024-6, https://doi.org/10.5194/cp-2024-6, 2024
Revised manuscript under review for CP
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Holocene vegetation-atmosphere interactions provide insight into intensifying land use impacts and the Holocene Conundrum- a mismatch between data- and model- inferred temperature. Using pollen records and statistical modeling, we reconstruct Holocene land cover for North America. We determine patterns and magnitudes of land cover changes across scales. We attribute land cover changes to ecological, climatic, and human drivers. These reconstructions provide benchmarks for Earth System Models.
Jennifer R. Marlon, Neil Pederson, Connor Nolan, Simon Goring, Bryan Shuman, Ann Robertson, Robert Booth, Patrick J. Bartlein, Melissa A. Berke, Michael Clifford, Edward Cook, Ann Dieffenbacher-Krall, Michael C. Dietze, Amy Hessl, J. Bradford Hubeny, Stephen T. Jackson, Jeremiah Marsicek, Jason McLachlan, Cary J. Mock, David J. P. Moore, Jonathan Nichols, Dorothy Peteet, Kevin Schaefer, Valerie Trouet, Charles Umbanhowar, John W. Williams, and Zicheng Yu
Clim. Past, 13, 1355–1379, https://doi.org/10.5194/cp-13-1355-2017, https://doi.org/10.5194/cp-13-1355-2017, 2017
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To improve our understanding of paleoclimate in the northeastern (NE) US, we compiled data from pollen, tree rings, lake levels, testate amoeba from bogs, and other proxies from the last 3000 years. The paleoclimate synthesis supports long-term cooling until the 1800s and reveals an abrupt transition from wet to dry conditions around 550–750 CE. Evidence suggests the region is now becoming warmer and wetter, but more calibrated data are needed, especially to capture multidecadal variability.
Xiayun Xiao, Simon G. Haberle, Ji Shen, Bin Xue, Mark Burrows, and Sumin Wang
Clim. Past, 13, 613–627, https://doi.org/10.5194/cp-13-613-2017, https://doi.org/10.5194/cp-13-613-2017, 2017
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Knowledge of the past fire activity is a key for making sustainable management policies for forest ecosystems. A high-resolution macroscopic charcoal record from southwestern China reveals the postglacial fire history. Combined with the regional climate records and vegetation histories, it is concluded that fire was mainly controlled by climate before 4.3 ka and by combined action of climate and humans after 4.3 ka, and the relationship between fire activity and vegetation were also examined.
Related subject area
Subject: Proxy Use-Development-Validation | Archive: Terrestrial Archives | Timescale: Pleistocene
Can machine-learning algorithms improve upon classical palaeoenvironmental reconstruction models?
Quantitative reconstruction of past monsoon precipitation based on tetraether membrane lipids in Chinese loess
Distinguishing the combined vegetation and soil component of δ13C variation in speleothem records from subsequent degassing and prior calcite precipitation effects
Multi-proxy speleothem-based reconstruction of mid-MIS 3 climate in South Africa
Biomarker proxy records of Arctic climate change during the Mid-Pleistocene transition from Lake El'gygytgyn (Far East Russia)
Hydroclimatic variability of opposing Late Pleistocene climates in the Levant revealed by deep Dead Sea sediments
Different facets of dry–wet patterns in south-western China over the past 27 000 years
The triple oxygen isotope composition of phytoliths, a new proxy of atmospheric relative humidity: controls of soil water isotope composition, temperature, CO2 concentration and relative humidity
The speleothem oxygen record as a proxy for thermal or moisture changes: a case study of multiproxy records from MIS 5–MIS 6 speleothems from the Demänová Cave system
A new multivariable benchmark for Last Glacial Maximum climate simulations
The Last Glacial Maximum in the central North Island, New Zealand: palaeoclimate inferences from glacier modelling
Late-glacial to late-Holocene shifts in global precipitation δ18O
Climate history of the Southern Hemisphere Westerlies belt during the last glacial–interglacial transition revealed from lake water oxygen isotope reconstruction of Laguna Potrok Aike (52° S, Argentina)
New online method for water isotope analysis of speleothem fluid inclusions using laser absorption spectroscopy (WS-CRDS)
Inorganic geochemistry data from Lake El'gygytgyn sediments: marine isotope stages 6–11
A 350 ka record of climate change from Lake El'gygytgyn, Far East Russian Arctic: refining the pattern of climate modes by means of cluster analysis
Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic
Amplified bioproductivity during Transition IV (332 000–342 000 yr ago): evidence from the geochemical record of Lake El'gygytgyn
Potential and limits of OSL, TT-OSL, IRSL and pIRIR290 dating methods applied on a Middle Pleistocene sediment record of Lake El'gygytgyn, Russia
Rock magnetic properties, magnetic susceptibility, and organic geochemistry comparison in core LZ1029-7 Lake El'gygytgyn, Russia Far East
High-temperature thermomagnetic properties of vivianite nodules, Lake El'gygytgyn, Northeast Russia
Reconstruction of drip-water δ18O based on calcite oxygen and clumped isotopes of speleothems from Bunker Cave (Germany)
A biomarker record of Lake El'gygytgyn, Far East Russian Arctic: investigating sources of organic matter and carbon cycling during marine isotope stages 1–3
Climate warming and vegetation response after Heinrich event 1 (16 700–16 000 cal yr BP) in Europe south of the Alps
A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic
The oxygen isotopic composition of phytolith assemblages from tropical rainforest soil tops (Queensland, Australia): validation of a new paleoenvironmental tool
Terrestrial mollusc records from Xifeng and Luochuan L9 loess strata and their implications for paleoclimatic evolution in the Chinese Loess Plateau during marine Oxygen Isotope Stages 24-22
Peng Sun, Philip B. Holden, and H. John B. Birks
Clim. Past, 20, 2373–2398, https://doi.org/10.5194/cp-20-2373-2024, https://doi.org/10.5194/cp-20-2373-2024, 2024
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We develop the Multi Ensemble Machine Learning Model (MEMLM) for reconstructing palaeoenvironments from microfossil assemblages. The machine-learning approaches, which include random tree and natural language processing techniques, substantially outperform classical approaches under cross-validation, but they can fail when applied to reconstruct past environments. Statistical significance testing is found sufficient to identify these unreliable reconstructions.
Jingjing Guo, Martin Ziegler, Louise Fuchs, Youbin Sun, and Francien Peterse
EGUsphere, https://doi.org/10.5194/egusphere-2024-1648, https://doi.org/10.5194/egusphere-2024-1648, 2024
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In this study, we use the distribution of soil bacterial membrane lipids stored on the Chinese Loess Plateau (CLP) to quantitatively reconstruct variations in precipitation amount over the past 130 kyr. The precipitation record shows orbital- and millennial-scale variations and varies at precession and obliquity scale. The application of this precipitation proxy across the CLP indicates a more pronounced spatial gradient during glacials, when the western CLP experiences more arid conditions.
Heather M. Stoll, Chris Day, Franziska Lechleitner, Oliver Kost, Laura Endres, Jakub Sliwinski, Carlos Pérez-Mejías, Hai Cheng, and Denis Scholz
Clim. Past, 19, 2423–2444, https://doi.org/10.5194/cp-19-2423-2023, https://doi.org/10.5194/cp-19-2423-2023, 2023
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Stalagmites formed in caves provide valuable information about past changes in climate and vegetation conditions. In this contribution, we present a new method to better estimate past changes in soil and vegetation productivity using carbon isotopes and trace elements measured in stalagmites. Applying this method to other stalagmites should provide a better indication of past vegetation feedbacks to climate change.
Jenny Maccali, Anna Nele Meckler, Stein-Erik Lauritzen, Torill Brekken, Helen Aase Rokkan, Alvaro Fernandez, Yves Krüger, Jane Adigun, Stéphane Affolter, and Markus Leuenberger
Clim. Past, 19, 1847–1862, https://doi.org/10.5194/cp-19-1847-2023, https://doi.org/10.5194/cp-19-1847-2023, 2023
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The southern coast of South Africa hosts some key archeological sites for the study of early human evolution. Here we present a short but high-resolution record of past changes in the hydroclimate and temperature on the southern coast of South Africa based on the study of a speleothem collected from Bloukrantz Cave. Overall, the paleoclimate indicators suggest stable temperature from 48.3 to 45.2 ka, whereas precipitation was variable, with marked short drier episodes.
Kurt R. Lindberg, William C. Daniels, Isla S. Castañeda, and Julie Brigham-Grette
Clim. Past, 18, 559–577, https://doi.org/10.5194/cp-18-559-2022, https://doi.org/10.5194/cp-18-559-2022, 2022
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Earth experiences regular ice ages resulting in shifts between cooler and warmer climates. Around 1 million years ago, the ice age cycles grew longer and stronger. We used bacterial and plant lipids preserved in an Arctic lake to reconstruct temperature and vegetation during this climate transition. We find that Arctic land temperatures did not cool much compared to ocean records from this period, and that vegetation shifts correspond with a long-term drying previously reported in the region.
Yoav Ben Dor, Francesco Marra, Moshe Armon, Yehouda Enzel, Achim Brauer, Markus Julius Schwab, and Efrat Morin
Clim. Past, 17, 2653–2677, https://doi.org/10.5194/cp-17-2653-2021, https://doi.org/10.5194/cp-17-2653-2021, 2021
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Laminated sediments from the deepest part of the Dead Sea unravel the hydrological response of the eastern Mediterranean to past climate changes. This study demonstrates the importance of geological archives in complementing modern hydrological measurements that do not fully capture natural hydroclimatic variability, which is crucial to configure for understanding the impact of climate change on the hydrological cycle in subtropical regions.
Mengna Liao, Kai Li, Weiwei Sun, and Jian Ni
Clim. Past, 17, 2291–2303, https://doi.org/10.5194/cp-17-2291-2021, https://doi.org/10.5194/cp-17-2291-2021, 2021
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The long-term trajectories of precipitation, hydrological balance and soil moisture are not completely consistent in southwest China. Hydrological balance was more sensitive to temperature change on a millennial scale. For soil moisture, plant processes also played a big role in addition to precipitation and temperature. Under future climate warming, surface water shortage in southwest China can be even more serious and efforts at reforestation may bring some relief to the soil moisture deficit.
Clément Outrequin, Anne Alexandre, Christine Vallet-Coulomb, Clément Piel, Sébastien Devidal, Amaelle Landais, Martine Couapel, Jean-Charles Mazur, Christophe Peugeot, Monique Pierre, Frédéric Prié, Jacques Roy, Corinne Sonzogni, and Claudia Voigt
Clim. Past, 17, 1881–1902, https://doi.org/10.5194/cp-17-1881-2021, https://doi.org/10.5194/cp-17-1881-2021, 2021
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Continental atmospheric humidity is a key climate parameter poorly captured by global climate models. Model–data comparison approaches that are applicable beyond the instrumental period are essential to progress on this issue but face a lack of quantitative relative humidity proxies. Here, we calibrate the triple oxygen isotope composition of phytoliths as a new quantitative proxy of continental relative humidity suitable for past climate reconstructions.
Jacek Pawlak
Clim. Past, 17, 1051–1064, https://doi.org/10.5194/cp-17-1051-2021, https://doi.org/10.5194/cp-17-1051-2021, 2021
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Presently, central Europe is under the influence of two types of climate, transitional and continental. The 60 ka long multiproxy speleothem dataset from Slovakia records the climate of the Last Interglacial cycle and its transition to the Last Glacial. The interpretation of stable isotopic composition and trace element content proxies helps to distinguish which factor had the strongest influence on the δ18O record shape: the local temperature, the humidity or the source effect.
Sean F. Cleator, Sandy P. Harrison, Nancy K. Nichols, I. Colin Prentice, and Ian Roulstone
Clim. Past, 16, 699–712, https://doi.org/10.5194/cp-16-699-2020, https://doi.org/10.5194/cp-16-699-2020, 2020
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We present geographically explicit reconstructions of seasonal temperature and annual moisture variables at the Last Glacial Maximum (LGM), 21 000 years ago. The reconstructions use existing site-based estimates of climate, interpolated in space and time in a physically consistent way using climate model simulations. The reconstructions give a much better picture of the LGM climate and will provide a robust evaluation of how well state-of-the-art climate models simulate large climate changes.
Shaun R. Eaves, Andrew N. Mackintosh, Brian M. Anderson, Alice M. Doughty, Dougal B. Townsend, Chris E. Conway, Gisela Winckler, Joerg M. Schaefer, Graham S. Leonard, and Andrew T. Calvert
Clim. Past, 12, 943–960, https://doi.org/10.5194/cp-12-943-2016, https://doi.org/10.5194/cp-12-943-2016, 2016
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Geological evidence for past changes in glacier length provides a useful source of information about pre-historic climate change. We have used glacier modelling to show that air temperature reductions of −5 to −7 °C, relative to present, are required to simulate the glacial extent in the North Island, New Zealand, during the last ice age (approx. 20000 years ago). Our results provide data to assess climate model simulations, with the aim of determining the drivers of past natural climate change.
S. Jasechko, A. Lechler, F. S. R. Pausata, P. J. Fawcett, T. Gleeson, D. I. Cendón, J. Galewsky, A. N. LeGrande, C. Risi, Z. D. Sharp, J. M. Welker, M. Werner, and K. Yoshimura
Clim. Past, 11, 1375–1393, https://doi.org/10.5194/cp-11-1375-2015, https://doi.org/10.5194/cp-11-1375-2015, 2015
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In this study we compile global isotope proxy records of climate changes from the last ice age to the late-Holocene preserved in cave calcite, glacial ice and groundwater aquifers. We show that global patterns of late-Pleistocene to late-Holocene precipitation isotope shifts are consistent with stronger-than-modern isotopic distillation of air masses during the last ice age, likely impacted by larger global temperature differences between the tropics and the poles.
J. Zhu, A. Lücke, H. Wissel, C. Mayr, D. Enters, K. Ja Kim, C. Ohlendorf, F. Schäbitz, and B. Zolitschka
Clim. Past, 10, 2153–2169, https://doi.org/10.5194/cp-10-2153-2014, https://doi.org/10.5194/cp-10-2153-2014, 2014
S. Affolter, D. Fleitmann, and M. Leuenberger
Clim. Past, 10, 1291–1304, https://doi.org/10.5194/cp-10-1291-2014, https://doi.org/10.5194/cp-10-1291-2014, 2014
P. S. Minyuk, V. Y. Borkhodoev, and V. Wennrich
Clim. Past, 10, 467–485, https://doi.org/10.5194/cp-10-467-2014, https://doi.org/10.5194/cp-10-467-2014, 2014
U. Frank, N. R. Nowaczyk, P. Minyuk, H. Vogel, P. Rosén, and M. Melles
Clim. Past, 9, 1559–1569, https://doi.org/10.5194/cp-9-1559-2013, https://doi.org/10.5194/cp-9-1559-2013, 2013
J. A. Snyder, M. V. Cherepanova, and A. Bryan
Clim. Past, 9, 1309–1319, https://doi.org/10.5194/cp-9-1309-2013, https://doi.org/10.5194/cp-9-1309-2013, 2013
L. Cunningham, H. Vogel, V. Wennrich, O. Juschus, N. Nowaczyk, and P. Rosén
Clim. Past, 9, 679–686, https://doi.org/10.5194/cp-9-679-2013, https://doi.org/10.5194/cp-9-679-2013, 2013
A. Zander and A. Hilgers
Clim. Past, 9, 719–733, https://doi.org/10.5194/cp-9-719-2013, https://doi.org/10.5194/cp-9-719-2013, 2013
K. J. Murdock, K. Wilkie, and L. L. Brown
Clim. Past, 9, 467–479, https://doi.org/10.5194/cp-9-467-2013, https://doi.org/10.5194/cp-9-467-2013, 2013
P. S. Minyuk, T. V. Subbotnikova, L. L. Brown, and K. J. Murdock
Clim. Past, 9, 433–446, https://doi.org/10.5194/cp-9-433-2013, https://doi.org/10.5194/cp-9-433-2013, 2013
T. Kluge, H. P. Affek, T. Marx, W. Aeschbach-Hertig, D. F. C. Riechelmann, D. Scholz, S. Riechelmann, A. Immenhauser, D. K. Richter, J. Fohlmeister, A. Wackerbarth, A. Mangini, and C. Spötl
Clim. Past, 9, 377–391, https://doi.org/10.5194/cp-9-377-2013, https://doi.org/10.5194/cp-9-377-2013, 2013
A. R. Holland, S. T. Petsch, I. S. Castañeda, K. M. Wilkie, S. J. Burns, and J. Brigham-Grette
Clim. Past, 9, 243–260, https://doi.org/10.5194/cp-9-243-2013, https://doi.org/10.5194/cp-9-243-2013, 2013
S. Samartin, O. Heiri, A. F. Lotter, and W. Tinner
Clim. Past, 8, 1913–1927, https://doi.org/10.5194/cp-8-1913-2012, https://doi.org/10.5194/cp-8-1913-2012, 2012
B. Chapligin, H. Meyer, G. E. A. Swann, C. Meyer-Jacob, and H.-W. Hubberten
Clim. Past, 8, 1621–1636, https://doi.org/10.5194/cp-8-1621-2012, https://doi.org/10.5194/cp-8-1621-2012, 2012
A. Alexandre, J. Crespin, F. Sylvestre, C. Sonzogni, and D. W. Hilbert
Clim. Past, 8, 307–324, https://doi.org/10.5194/cp-8-307-2012, https://doi.org/10.5194/cp-8-307-2012, 2012
B. Wu and N. Q. Wu
Clim. Past, 7, 349–359, https://doi.org/10.5194/cp-7-349-2011, https://doi.org/10.5194/cp-7-349-2011, 2011
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Short summary
The Indo-Pacific Pollen Database is a large collection of pollen samples from across the Indo-Pacific region, with most samples coming from Australia. This is a valuable collection that can be used to analyse vegetation dynamics going back thousands of years. It is now being fully shared via Neotoma for the first time, opening up many exciting new avenues of research. This paper presents key aspects of this database, including geographical distribution, age control and deposition times.
The Indo-Pacific Pollen Database is a large collection of pollen samples from across the...
