Climate and dispersal limitation drive tree species range shifts in post-glacial Europe: results from dynamic simulations DOI Creative Commons
Deborah Zani, Heike Lischke, Veiko Lehsten

et al.

Frontiers in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 11

Published: Dec. 5, 2023

Introduction The ability of species to colonize newly suitable habitats under rapid climate change can be constrained by migration processes, resulting in a shift the leading edge lagging behind ameliorating climate, i.e. lag. importance and extent such lags during forest expansion after Last Glacial Maximum (LGM) are still debated. Similarly, relative main drivers post-glacial vegetation dynamics (temperature, dispersal limitation, competition) is discussed literature. Methods We used dynamic global model LPJ-GM 2.0 reconstruct range shifts 16 competing major European tree LGM (18.5 ka BP) until recent times (0 BP). simulated two modes allowing free establishment whenever climatic conditions suited (free dispersal), or accounting for processes (dispersal limitation). then calculated thermal velocities, competition at establishment, each mode. Finally, we compared our velocities with pollen-derived rates. Results simulation assuming limited resulted more accurate rates as spreading patterns. found no marked pioneer ( Pinus sylvestris Betula pubescens ). Under mode, remaining temperate expanded rapidly almost synchronously across central Europe upon warming (Bølling-Allerød interstadial). Differently, northward spread limitation happened mainly Holocene successive waves, late spreaders (e.g. Fraxinus excelsior ) experiencing multi-millennial higher competition. Discussion Our constraints suggests that was driven species-specific requirements capacity, which turn affected order taxa thus degree Namely, less cold-tolerance relatively low experienced highest lags, whereas mostly equilibrium climate.

Language: Английский

CHELSA-TraCE21k – high-resolution (1 km) downscaled transient temperature and precipitation data since the Last Glacial Maximum DOI Creative Commons
Dirk Nikolaus Karger, Michael P. Nobis, Signe Normand

et al.

Climate of the past, Journal Year: 2023, Volume and Issue: 19(2), P. 439 - 456

Published: Feb. 20, 2023

Abstract. High-resolution, downscaled climate model data are used in a wide variety of applications across environmental sciences. Here we introduce new, high-resolution dataset, CHELSA-TraCE21k. It is obtained by downscaling TraCE-21k data, using the “Climatologies at high resolution for earth's land surface areas” (CHELSA) V1.2 algorithm with objective to create global monthly climatologies temperature and precipitation 30 arcsec spatial 100-year time steps last 21 000 years. Paleo-orography each step created combining information on glacial cover from current Last Glacial Maximum (LGM) glacier databases interpolations isostasy (ICE-6G_C) coupling mean annual temperatures TraCE21k (Transient Climate Evolution years) based Community System Model version 3 (CCSM3). Based reconstructed paleo-orography, were CHELSA algorithm. The validated comparisons extent Laurentide ice sheet expert delineations, proxy Greenland cores, historical meteorological stations, dynamic simulation species distributions throughout Holocene. Validations show that CHELSA-TraCE21k V1.0 dataset reasonably represents distribution through an unprecedented 1 km resolution, simulations capable detecting known LGM refugia species.

Language: Английский

Citations

92
Strengthening global-change science by integrating aeDNA with paleoecoinformatics DOI Creative Commons
John W. Williams, Trisha Spanbauer, Peter D. Heintzman

et al.

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 38(10), P. 946 - 960

Published: May 23, 2023

Language: Английский

Citations

23
Using ancient sedimentary DNA to forecast ecosystem trajectories under climate change DOI Creative Commons
Inger Greve Alsos, Victor Boussange, Dilli P. Rijal

et al.

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1902)

Published: April 7, 2024

Ecosystem response to climate change is complex. In order forecast ecosystem dynamics, we need high-quality data on changes in past species abundance that can inform process-based models. Sedimentary ancient DNA ( sed aDNA) has revolutionised our ability document ecosystems' dynamics. It provides time series of increased taxonomic resolution compared microfossils (pollen, spores), and often give species-level information, especially for vascular plant mammal abundances. Time are much richer information than contemporary spatial distribution which have been traditionally used train models predicting biodiversity responses change. Here, outline the potential contribution aDNA changes. We showcase how may allow quantification effect biotic interactions be estimate dispersal rates when a dense network sites available. By combining palaeo-time series, models, inverse modelling, recover abiotic processes underlying very challenging characterise. Dynamic informed by further extrapolate beyond current dynamics provide robust forecasts future This article part theme issue ‘Ecological novelty planetary stewardship: transforming biosphere’.

Language: Английский

Citations

8
Potential plant extinctions with the loss of the Pleistocene mammoth steppe DOI Creative Commons
Jérémy Courtin, Kathleen R. Stoof‐Leichsenring, Simeon Lisovski

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 14, 2025

Abstract During the Pleistocene-Holocene transition, dominant mammoth steppe ecosystem across northern Eurasia vanished, in parallel with megafauna extinctions. However, plant extinction patterns are rarely detected due to lack of identifiable fossil records. Here, we introduce a method for detection taxa loss at regional (extirpation) potentially global scale (extinction) and their causes, as determined from ancient DNA metabarcoding sediment cores ( sed aDNA) lakes Siberia Alaska over past 28,000 years. Overall, potential extinctions track changes temperature, vegetation, transition. Estimated rates were 1.7–5.9 per million species years (E/MSY), above background but below modern estimates. Major events around 17,000 9000 ago which lag maximum vegetation turnover. Our results indicate that herbaceous contributing less beta diversity more vulnerable extinction. While robustness estimates will increase reference libraries aDNA data expand, available support plants resilient environmental than mammals.

Language: Английский

Citations

1
Environmental DNA of aquatic macrophytes: The potential for reconstructing past and present vegetation and environments DOI Creative Commons
Aloïs Revéret, Dilli P. Rijal, Peter D. Heintzman

et al.

Freshwater Biology, Journal Year: 2023, Volume and Issue: 68(11), P. 1929 - 1950

Published: July 29, 2023

Abstract Environmental DNA is increasingly being used to reconstruct past and present biodiversity including from freshwater ecosystems. Macrophytes are especially good environmental indicators, thus their palaeorecord might shed light on postglacial environments. Here, we first review compare studies that use metagenomics, targeted capture, various barcoding metabarcoding markers, in order explore how each of these methods can be capture aquatic vegetation diversity change. We then investigate the extent which such a record leveraged for reconstructing local conditions, using case study based macrophyte ecological niches. find that, with state‐of‐the‐art barcode reference libraries, target P6 loop region chloroplast trn L (UAA) intron optimal maximise taxonomic resolution communities. Shotgun sequencing also retrieves high proportion diversity, but has lowest resolution, needs more widely applied before comparisons made. From our study, infer habitats sedimentary ancient records taxa. reconstructed Holocene thermal range, continentality, water pH, trophic status, conditions northern Fennoscandia. show an overall stability since 9,000 years ago, even though individual lakes display different trends variation climatic physico‐chemical conditions. Combined availability near‐exhaustive traits databases, data support wider reconstructions not limited plant inventories changes drivers. Sedimentary powerful tool measure as well lacustrine fluvial communities macrophytes.

Language: Английский

Citations

22
Uncovering Holocene climate fluctuations and ancient conifer populations: Insights from a high-resolution multi-proxy record from Northern Finland DOI Creative Commons
J. Sakari Salonen, Niina Kuosmanen, Inger Greve Alsos

et al.

Global and Planetary Change, Journal Year: 2024, Volume and Issue: 237, P. 104462 - 104462

Published: May 8, 2024

A series of abrupt climate events linked to circum-North Atlantic meltwater forcing have been recognised in Holocene paleoclimate data. To address the paucity proxy records able characterise robustly regional impacts these events, we retrieved a sub-centennial resolution, well-dated core sequence from Lake Kuutsjärvi, northeast Finland. By analysing range paleo-environmental proxies (pollen, plant sedimentary ancient DNA, macrofossils, conifer stomata, and non-pollen palynomorphs), supported with proxy-based paleotemperature moisture reconstructions, unravel well-defined vegetation dynamics over early-to-middle Holocene. The birch-dominated pioneer stage was intersected by two transient tree-cover decrease at 10.4 10.1 thousand years ago (ka), likely representing two-pronged signal 10.3 ka event. Our data also show clear 8.2 event, previously not well recorded European Arctic, collapse pine-birch forest replacement juniper developing tight synchrony Greenland isotopic 8.4–8.0 ka. Supported modelling, severe winter cooling rather than summer might driving disruptions early Kuutsjärvi indicate an arrival Norway spruce (Picea abies) 9.2 stoma finds), as first evidence for presence larch (Larix) Finland, pollen finds dating 9.6–5.9

Language: Английский

Citations

6
Trait‐based approaches as ecological time machines: Developing tools for reconstructing long‐term variation in ecosystems DOI Creative Commons
Kerry A. Brown, M. Jane Bunting, Fábio Carvalho

et al.

Functional Ecology, Journal Year: 2023, Volume and Issue: 37(10), P. 2552 - 2569

Published: Aug. 22, 2023

Abstract Research over the past decade has shown that quantifying spatial variation in ecosystem properties is an effective approach to investigating effects of environmental change on ecosystems. Yet, current consensus among scientists we need a better understanding short‐ and long‐term (temporal) plan management predict future ecologies. Trait‐based approaches can be used reconstruct from ecological records contribute significantly developing understandings decadal millennial time‐scales. Here, synthesise trait‐based explore how organisms' functional traits (FTs) scaled across time space. We propose framework for reconstructing ecosystems by means analysing FTs derived palaeoecological datasets. then summarise challenges must overcome reconcile with palaeo‐datasets. Finally, discuss benefits limitations reconstructions temporal dynamics suggest directions research. Reconstructing through vis‐à‐vis separated into two parts. The first record trait data organisms present modern ecosystems, second variability datasets, capturing changes composition time. Translating datasets challenging due taphonomic, taxonomic chronological uncertainties, as well uniformitarian assumptions. Explicitly identifying addressing these important effectively calculate FT Palaeo‐trait research offers insights questions related functioning, extinction community assembly rules As work this area matures, expect integrating palaeoecology neo‐ecology will improve ecologies provide deeper insight their implications present‐day conservation. Read free Plain Language Summary article Journal blog.

Language: Английский

Citations

14
Sedimentary Ancient DNA Reveals Local Vegetation Changes Driven by Glacial Activity and Climate DOI Creative Commons
Lucas D. Elliott, Dilli P. Rijal, Antony G. Brown

et al.

Quaternary, Journal Year: 2023, Volume and Issue: 6(1), P. 7 - 7

Published: Jan. 7, 2023

Disentangling the effects of glaciers and climate on vegetation is complicated by confounding role that plays in both systems. We reconstructed changes occurring over Holocene at Jøkelvatnet, a lake located directly downstream from Langfjordjøkel glacier northern Norway. used sedimentary ancient DNA (sedaDNA) metabarcoding dataset 38 samples sediment core spanning 10,400 years using primers targeting P6 loop trnL (UAA) intron. A total 193 plant taxa were identified revealing pattern continually increasing richness time period. Vegetation surveys conducted around Jøkelvatnet show high concordance with through sedaDNA metabarcoding. four distinct assemblage zones transitions ca. 9.7, 8.4 4.3 ka first last mirroring climatic shifts recorded glacier. Soil disturbance trait values increased glacial activity, suggesting had direct impact plants growing catchment. Temperature optimum moisture correlated activity variables showing indirect change vegetation. In contrast to other catchments without an active glacier, has displayed sensitivity throughout Middle Late Holocene. Beyond arctic alpine vegetation, our results suggest ongoing disappearance will have additional effect communities.

Language: Английский

Citations

11
Ancient DNA and osteological analyses of a unique paleo-archive reveal Early Holocene faunal expansion into the Scandinavian Arctic DOI Creative Commons
Aurélie Boilard, Samuel Walker, Trond Klungseth Lødøen

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(13)

Published: March 29, 2024

Paleo-archives are essential for our understanding of species responses to climate warming, yet such archives extremely rare in the Arctic. Here, we combine morphological analyses and bulk-bone metabarcoding investigate a unique chronology bone deposits sealed high-latitude Storsteinhola cave system (68°50′ N 16°22′ E) Norway. This deposit dates period warming from end Late Glacial [~13 thousand calibrated years before present (ka cal B.P.)] Holocene thermal maximum (~5.6 ka B.P.). Paleogenetic allow us exploit 1000s morphologically unidentifiable fragments resulting high-resolution sequence with 40 different taxa, including not previously found here. Our record reveals borealization both marine terrestrial environments above Arctic Circle as naturally recurring phenomenon past periods providing fundamental insights into ecosystem-wide that ongoing today.

Language: Английский

Citations

4
Late Glacial and Holocene vegetation and lake changes in SW Yakutia, Siberia, inferred from sedaDNA, pollen, and XRF data DOI Creative Commons
Izabella Baisheva, Boris K. Biskaborn, Kathleen R. Stoof‐Leichsenring

et al.

Frontiers in Earth Science, Journal Year: 2024, Volume and Issue: 12

Published: April 26, 2024

Only a few palaeo-records extend beyond the Holocene in Yakutia, eastern Siberia, since most of lakes region are thermokarst origin. Thus, we have poor understanding long-term interactions between terrestrial and aquatic ecosystems their response to climate change. The Lake Khamra southwestern Yakutia is particular interest because it transition zones from discontinuous sporadic permafrost summergreen evergreen boreal forests. Our multiproxy study sediments reaching back Last Glacial Maximum 21 cal ka BP, includes analyses organic carbon, nitrogen, XRF-derived elements, sedimentary ancient DNA amplicon sequencing plants diatoms, as well classical counting pollen non-pollen palynomorphs (NPP). palaeogenetic approach revealed 45 diatom, 191 plant, 65 macrophyte taxa. Pollen identified 34 taxa 28 NPP inferred ecosystem comprises tundra vegetation dominated by forbs grasses, likely inhabited megaherbivores. By 18.4 BP lake had developed with high abundance macrophytes dominant fragilarioid while shrubs expanded around lake. In Bølling-Allerød at 14.7 both systems reflect amelioration, alongside water-level rise woodland establishment, which was curbed Younger Dryas cooling. Early warmer wetter led taiga development rise, reflected diatom composition turnover only epiphytic planktonic diatoms. Mid-Holocene water level decreased ca. 8.2 increased again 6.5 BP. At same time mixed evergreen-summergreen forest expanded. Late Holocene, 4 cover similar modern conditions established. This reveals shifts comprehensive catchment history region.

Language: Английский

Citations

4