Journal of Quaternary Science最新文献

Sedimentary ancient DNA from caves: Challenges and opportunities

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-04-15 DOI: 10.1002/jqs.3712

Siobhan Evans, Bastien Llamas, Jamie R. Wood

{"title":"Sedimentary ancient DNA from caves: Challenges and opportunities","authors":"Siobhan Evans, Bastien Llamas, Jamie R. Wood","doi":"10.1002/jqs.3712","DOIUrl":"https://doi.org/10.1002/jqs.3712","url":null,"abstract":"Caves are unique depositional environments that hold great potential for long-term preservation of DNA due to their typically cool and stable internal climates, buffered from external climate extremes. Bones from caves have long been recognised as an excellent source of ancient DNA, yet the potential for DNA preservation in cave sediments themselves has only recently begun to be explored. Here, we discuss features of caves that make them well-suited to the long-term preservation of sedimentary ancient DNA (sedaDNA), focussing specifically on sources, taphonomy and preservation of cave sedaDNA. We also highlight opportunities for future work to improve our understanding of the processes influencing long-term DNA preservation within cave sediments. These recommendations seek to improve our understanding of sedimentary ancient DNA taphonomy within caves and enhance the level of insights about the past that can be gained from it and include: (1) designation of reference sections and sample repositories; (2) routine collection of sediment, mineralogy and geochemistry data; (3) routine collection of cave climate data; (4) increased application of microstratigraphic and spatial analyses; (5) advocating use of multiple proxies when interpreting results and (6) ensuring ethical best practices are followed.","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"565-578"},"PeriodicalIF":1.9,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3712","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Within the boundaries of the Dnipro ice lobe: Biotic dynamics in the Middle Dnipro area (Ukraine) during deglaciation and postglacial stages”

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-04-05 DOI: 10.1002/jqs.3703

引用次数: 0

Preservation of stable isotopic composition in charred grains: Implications for paleoenvironmental and archeological research

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-04-01 DOI: 10.1002/jqs.3707

Natálie Pernicová, Otmar Urban, Josef Čáslavský, Jana Apiar, Marek Vlach, Balázs Komoróczy, Miroslav Trnka

{"title":"Preservation of stable isotopic composition in charred grains: Implications for paleoenvironmental and archeological research","authors":"Natálie Pernicová, Otmar Urban, Josef Čáslavský, Jana Apiar, Marek Vlach, Balázs Komoróczy, Miroslav Trnka","doi":"10.1002/jqs.3707","DOIUrl":"https://doi.org/10.1002/jqs.3707","url":null,"abstract":"The charring process can preserve archaeobotanical remains, providing valuable insights into past climates, agricultural practices, and plant growth conditions. However, the impact of charring on stable isotopes, especially at temperatures above 300°C, remains poorly understood. To investigate this, wheat (einkorn, emmer) and millet grains were experimentally charred at 300°C, 450°C, and 550°C for 15 min to 48 h under aerobic and anaerobic conditions. Consequently, the stable isotopic ratios of carbon (13C/12C; δ13C), nitrogen (15N/14N; δ15N), and oxygen (18O/16O; δ18O) were determined in fully charred grains with a blackened pericarp, visually comparable to archeological remains. Our results indicate that δ13C values are well preserved in charred grains, showing minimal shifts (<0.55‰ for wheat and <0.2‰ for millet), while δ15N values retained species-specific differences, with moderate variations (<1.31‰ for wheat and <0.68‰ for millet) influenced by charring conditions. In contrast, δ18O values showed high variability in experimentally charred grains, limiting their reliability for interpretative use. These findings underscore the potential of carbon and, to a lesser extent, nitrogen isotopes in charred grains, for reconstructing ancient growth conditions and improving the understanding of formation processes in archeological research.","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"645-656"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3707","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Late Pleistocene–Holocene environmental fluctuations of southern Chihuahua Desert, Mexico

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-03-31 DOI: 10.1002/jqs.3706

C. M. Chávez-Lara, N. B. Palacios-García, K. García-Macedo, D. Ibarra-Morales, M. Caballero

{"title":"Late Pleistocene–Holocene environmental fluctuations of southern Chihuahua Desert, Mexico","authors":"C. M. Chávez-Lara, N. B. Palacios-García, K. García-Macedo, D. Ibarra-Morales, M. Caballero","doi":"10.1002/jqs.3706","DOIUrl":"https://doi.org/10.1002/jqs.3706","url":null,"abstract":"Paleoenvironmental reconstructions from the Mexican Chihuahua Desert based on biological proxies are scarce, creating a gap in our understanding of the ecological responses to climate change in this water-scarce region. Here, we present a paleoenvironmental reconstruction based on geochemical data and biological proxies such as ostracods and ephippia from cladocerans from the Santa Clara basin, at the southern Chihuahua Desert, during the last 18.7 cal ka. Overall, cold and humid conditions between 18.7 and 15 cal ka BP prevailed in the Santa Clara region without ostracod preservation. During the warmer Bølling-Allerød, L. axalapasco presented higher productivity; however, this species did not occur during the colder Younger Dryas. The early Holocene was marked by a general trend towards warmer and dryer conditions, and a sedimentary hiatus was detected from 10.7 to 6.4 cal ka BP. Subsequently, when the North American Monsoon reached its maximum extension, ostracods exhibit their maximum total abundance during 6–4.8 cal ka BP, indicating warmer and shallower lake conditions. The presence of only females of L. bradburyi between 4–2 cal ka BP possibly suggests lower lake water temperatures associated with enhanced winter precipitation under El Niño type conditions. Finally, during the last 2 cal ka ephippia, L. axalapasco females and geochemical data suggest the driest period of the record as the ITCZ continued moving southwards. This work reveals the marked sensitivity of southern Chihuahua Desert ecosystems to the climatic shifts that occurred since the Last Glacial Maximum, and this perhaps indicates their vulnerability to future global warming reducing monsoonal precipitation.","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"634-644"},"PeriodicalIF":1.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3706","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reassessing stratigraphic and palaeontological interpretations of Middle Dnieper Pleistocene deposits: A commentary on Popova et al. (2024)

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-03-12 DOI: 10.1002/jqs.3700

Przemysław Mroczek, Oleksiy Krokhmal', Maryna Komar, Maria Łanczont

{"title":"Reassessing stratigraphic and palaeontological interpretations of Middle Dnieper Pleistocene deposits: A commentary on Popova et al. (2024)","authors":"Przemysław Mroczek, Oleksiy Krokhmal', Maryna Komar, Maria Łanczont","doi":"10.1002/jqs.3700","DOIUrl":"https://doi.org/10.1002/jqs.3700","url":null,"abstract":"<div>\u0000 \u0000 This commentary addresses the palaeogeographical and stratigraphic interpretations of Pleistocene deposits in the Middle Dnieper Valley as presented by Popova et al. (2024a). The authors proposed a revision of the stratigraphy in this region based on biochronological analyses and vertebrate taphocenoses, highlighting potential changes in the correlation of key sedimentary units. This approach provides intriguing insights into local deglaciation and postglacial processes; however, certain aspects of the applied methodology and data interpretation require further elaboration. The commentary draws attention to challenges related to the limited availability of SDQ index data for the m1 teeth of the genus Arvicola, which may affect the precision of the correlations. Additionally, we emphasise the necessity of incorporating more detailed lithological analyses to complement the proposed stratigraphic conclusions. Assigning key sedimentary units to global chronostratigraphic frameworks, in some cases, necessitates a stronger consideration of regional correlations based on available palaeopedological and malacological data from neighbouring areas. The commentary underscores the importance of integrated, multidisciplinary research methods that can significantly enhance our understanding of the stratigraphy and palaeoenvironmental evolution of the Middle Dnieper Valley and Eastern Europe as a whole.\u0000 </div>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"734-738"},"PeriodicalIF":1.9,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Repeated surging and rapid retreat of a tidewater glacier in Scotland (Younger Dryas/Greenland Stadial 1)

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-03-10 DOI: 10.1002/jqs.3701

Tom Bradwell, Douglas I. Benn

{"title":"Repeated surging and rapid retreat of a tidewater glacier in Scotland (Younger Dryas/Greenland Stadial 1)","authors":"Tom Bradwell, Douglas I. Benn","doi":"10.1002/jqs.3701","DOIUrl":"https://doi.org/10.1002/jqs.3701","url":null,"abstract":"This paper presents evidence of glacier surging in the British landform record. We use new high-resolution multibeam-echosounder bathymetry data to map the submarine geomorphology of a former tidewater glacier that drained the Skye Icefield, NW Scotland, during the Younger Dryas Stadial (Greenland Stadial 1) ca. 12.9–11.7 ka. Our onshore and offshore mapping identifies a glacial landform assemblage indicative of surge-type behaviour, followed by rapid retreat and stagnation. We delimit three separate fjord-mouth advances of the Ainort Glacier — interpreted as palaeo-surges — successively decreasing in extent. During the quiescent phase of the final surge cycle, the glacier deposited a suite of cross-fjord De Geer moraines, interpreted here as annual moraines. Their pattern and spacing suggest that net annual glacier retreat rates increased significantly from around 25–75 ma−1 to 150 ma−1 to >300 ma−1, probably in the presence of seasonal sea ice. On this basis, we find that final post-surge retreat of the Ainort Glacier, from fjord mouth to marine limit (a distance of 3.5 km), was very rapid — probably taking just 20 years. Once wholly terrestrial, the glacier stagnated and did not experience further frontal oscillations. This work highlights one potential cause of asynchronous ice-mass responses in the Younger Dryas Stadial of Scotland and reinforces the importance of identifying surge-type glaciers in palaeoglaciological studies.","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"622-633"},"PeriodicalIF":1.9,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3701","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Restricted cirque glaciers in the Wicklow Mountains, Ireland, during the Nahanagan Stadial (Greenland Stadial-1/Younger Dryas)

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-03-05 DOI: 10.1002/jqs.3699

Lauren Knight, Clare M. Boston, Harold Lovell, Timothy T. Barrows, Eric A. Colhoun, David Fink, Nicholas C. Pepin

{"title":"Restricted cirque glaciers in the Wicklow Mountains, Ireland, during the Nahanagan Stadial (Greenland Stadial-1/Younger Dryas)","authors":"Lauren Knight, Clare M. Boston, Harold Lovell, Timothy T. Barrows, Eric A. Colhoun, David Fink, Nicholas C. Pepin","doi":"10.1002/jqs.3699","DOIUrl":"https://doi.org/10.1002/jqs.3699","url":null,"abstract":"In Ireland, the Nahanagan Stadial (NS) was characterised by cirque glacier, plateau icefield and mountain ice cap expansion and is named after the cirque glacier type-site of Lough Nahanagan in the Wicklow Mountains. This period is broadly equivalent to the Younger Dryas Stadial and Greenland Stadial-1 (GS-1: ~12.9–11.7 ka). Here, we provide the first evaluation of the full extent of NS glaciation in the Wicklow Mountains by combining solar radiation modelling, mapping of glacial geomorphology, 10Be and 26Al cosmogenic surface exposure dating, 3D glacier reconstructions and analysis of snowblow and avalanching potential. We identify seven sites that hosted cirque glaciers at this time. Glacier extent was very restricted, with most glaciers only partially filling their cirques. Equilibrium line altitudes (ELAs) ranged from 470 ± 5 m a.s.l. (Lough Nahanagan) to 721 ± 5 m a.s.l. (Lough Cleevaun), with an average ELA of 599 m a.s.l. Higher snowblow and avalanching contributions at sites with lower ELAs demonstrate local topoclimatic influence on glacier growth and preservation alongside regional climate. The Wicklow Mountains provides a good example of marginal cirque glaciation during GS-1 and the importance of local topography and microclimate for sustaining glaciers in some mountain areas of Britain and Ireland.","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"604-621"},"PeriodicalIF":1.9,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3699","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New fossils from the area of the Dnipro ice lobe and the Chibanian–Late Pleistocene boundary: A reply to Mroczek et al. (2025) 第聂伯罗冰叶和Chibanian-Late更新世边界地区的新化石：对Mroczek et al.（2025）的答复

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-03-03 DOI: 10.1002/jqs.3702

Lilia Popova, Oleksandr Kovalchuk, Zoltán Barkaszi, Leonid Rekovets

{"title":"New fossils from the area of the Dnipro ice lobe and the Chibanian–Late Pleistocene boundary: A reply to Mroczek et al. (2025)","authors":"Lilia Popova, Oleksandr Kovalchuk, Zoltán Barkaszi, Leonid Rekovets","doi":"10.1002/jqs.3702","DOIUrl":"https://doi.org/10.1002/jqs.3702","url":null,"abstract":"The stratigraphic and palaeogeographic interpretations in our article (Popova et al., 2025) received criticism from Mroczek et al. (2025), who argued that our results contradict regional and global stratigraphic models and that we propose a revision of the Ukrainian regional stratigraphic scheme without sufficient data background. We want to clarify that the main focus of our study was to shed light on climatically induced biotic transformations in the Middle Dnipro area during deglaciation and postglacial stages. We did not revise the stratigraphic framework but only provided support for an already established correlation model, according to which the Dnipro stage is associated with MIS 6, the Kaidaky with MIS 5e and the Tiasmyn with MIS 5d. This stratigraphic scheme is opposed by Mroczek et al. (2025), who questioned the reliability of our results. Here, we address their comments and discuss an approach to deal with competing stratigraphic models and methods of biostratigraphic, palaeogeographical and palaeoecological interpretation.","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 3","pages":"558-562"},"PeriodicalIF":1.9,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to “The Pleistocene Witch Ground Ice Stream in the central North Sea” 对“北海中部更新世女巫地冰流”的修正

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-03-03 DOI: 10.1002/jqs.3704

引用次数: 0

Ecological responses of the Atlantic Forest biodiversity hotspot to Holocene climate change: Insights from the Lagoa Canto Grande pollen record, Espirito Santo, coastal Brazil 大西洋森林生物多样性热点对全新世气候变化的生态响应：来自巴西沿海Espirito Santo Lagoa Canto Grande花粉记录的见解

IF 1.9 3区地球科学

Journal of Quaternary Science Pub Date : 2025-02-22 DOI: 10.1002/jqs.3698

Antonio Alvaro Buso JR., Luiz Carlos Ruiz Pessenda, Francis Edward Mayle, Flávio Lima Lorente, Paulo Eduardo de Oliveira, Marcelo Cancela Lisboa Cohen, Marlon Carlos França, Evandro Augusto de Souza Magalhães, José Albertino Bendassolli, Fabiana Monteiro de Oliveira, Geovane Souza Siqueira

{"title":"Ecological responses of the Atlantic Forest biodiversity hotspot to Holocene climate change: Insights from the Lagoa Canto Grande pollen record, Espirito Santo, coastal Brazil","authors":"Antonio Alvaro Buso JR., Luiz Carlos Ruiz Pessenda, Francis Edward Mayle, Flávio Lima Lorente, Paulo Eduardo de Oliveira, Marcelo Cancela Lisboa Cohen, Marlon Carlos França, Evandro Augusto de Souza Magalhães, José Albertino Bendassolli, Fabiana Monteiro de Oliveira, Geovane Souza Siqueira","doi":"10.1002/jqs.3698","DOIUrl":"https://doi.org/10.1002/jqs.3698","url":null,"abstract":"<div>\u0000 \u0000 This study presents the modern pollen signature and Holocene vegetation and climate history of the evergreen forest and associated ecosystems in the Bahia Coastal Forest ecoregion of Brazil's Atlantic Forest biodiversity hotspot. Artificial pollen traps provided the modern pollen signature of the evergreen forest, which is marked by Urticaceae/Moraceae, Simarouba, Crepidospermum/Protium, Sloanea, Sapotaceae and Diploon, and presence of rare forest tree pollen types. The pollen signature of the wooded mussununga, an associated ecosystem, is characterized by Byrsonima, Doliocarpus, Lundia and Araliaceae. Fossil pollen from Lagoa Canto Grande shows that the early to middle Holocene (11 154–7731 cal a \u0000bp) vegetation was characterized by regional dominance of semi-deciduous forest, under a less humid and cooler climate than today, as well as coastal vegetation on sandy soils (restinga), mangrove and patches of alluvial forests. Relative sea-level rise during the middle Holocene caused regional changes in the distribution of alluvial forests, restingas and mangroves. A change to warmer and more humid climatic conditions during the middle to late Holocene (7731–434 cal a \u0000bp) led to forest community changes, with the establishment of the modern evergreen forest.</div>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"40 4","pages":"588-603"},"PeriodicalIF":1.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0