Details
| Original language | English |
|---|---|
| Article number | 108634 |
| Number of pages | 20 |
| Journal | Quaternary science reviews |
| Volume | 331 |
| Early online date | 16 Apr 2024 |
| Publication status | Published - 1 May 2024 |
Abstract
Anthropogenically-driven climate warming and land use change are the main causes of an ongoing decrease in global biodiversity. It is unclear how ecosystems, particularly freshwater habitats, will respond to such continuous and potentially intensifying disruptions. Here we analyse how different components of terrestrial and aquatic ecosystems responded to natural climate change during the Lateglacial. By applying a range of analytical techniques (sedimentology, palaeoecology, geochemistry) to the well-dated sediment archive from Lake Hämelsee (Germany), we show evidence for vegetation development, landscape dynamics and aquatic ecosystem change typical for northwest Europe during the Lateglacial. By particularly focussing on periods of abrupt climate change, we determine the timing and duration of changes in biodiversity in response to external forcing. We show that onsets of changes in biodiversity indicators (e.g. diatom composition, Pediastrum concentrations) lag changes in environmental records (e.g. loss-on-ignition) by a few decades, particularly at the Allerød/Younger Dryas transition. Most biodiversity indicators showed transition times of 10–50 years, whereas environmental records typically showed a 50–100 year long transition. In some cases, transition times observed for the compositional turnover or productivity records were up to 185 years, which could have been the result of the combined effects of direct (e.g. climate) and indirect (e.g. lake stratification) drivers of ecosystem change. Our results show differences in timing and duration of biodiversity responses to external disturbances, suggesting that a multi-decadal view needs to be taken when designing effective conservation management of freshwater ecosystems under current global warming.
Keywords
- Biodiversity, Europe, Lake sediment, Multi-proxy, Palaeoenvironment, Productivity, Younger Dryas
ASJC Scopus subject areas
- Environmental Science(all)
- Global and Planetary Change
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
- Arts and Humanities(all)
- Archaeology
- Social Sciences(all)
- Archaeology
- Earth and Planetary Sciences(all)
- Geology
Sustainable Development Goals
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In: Quaternary science reviews, Vol. 331, 108634, 01.05.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Biodiversity responses to Lateglacial climate change in the subdecadally-resolved record of Lake Hämelsee (Germany)
AU - Engels, S.
AU - Lane, C. S.
AU - Hoek, W. Z.
AU - Baneschi, I.
AU - Bouwman, A.
AU - Brogan, E.
AU - Bronk Ramsey, C.
AU - Collins, J.
AU - de Bruijn, R.
AU - Haliuc, A.
AU - Heiri, O.
AU - Hubay, K.
AU - Jones, G.
AU - Jones, V.
AU - Laug, A.
AU - Merkt, J.
AU - Muschitiello, F.
AU - Peters, T.
AU - Peterse, F.
AU - Pueschel, A.
AU - Staff, R. A.
AU - ter Schure, A.
AU - Turner, F.
AU - van den Bos, V.
AU - Wagner-Cremer, F.
AU - Müller, Meike
N1 - Funding Information: This study forms a contribution to the INTIMATE project (INTegrating Ice core, MArine and Terrestrial records, http://intimate.nbi.ku.dk/ ) and follows on from the INTIMATE Example 2013 Research and Training school (COST action ES0907). We thank all the participants in the INTIMATE Example 2013 training school for their contribution to this research. We would also like to thank Camping Rittergut H\u00E4melsee for giving access to the site and the coring team Hans van Aken, David Maas and Hessel Woolderink. We thank Marjolein Gouw-Bouman for help with selecting macro-remains for 14 C dating, Dirk Sachse for supporting the n-alkane and stable isotope analysis and Achim Brauer for supporting the XRF and varve analysis. AH acknowledges support by a grant of the Ministry of Research, Innovation and Digitization, CNCS - UEFISCDI , project number PN-III-P1-1.1-TE-2021-0465 , within PNCDI III ( https://uefiscdi.gov.ro ). We would like to thank the two anonymous reviewers and editor prof. Rioual for their constructive comments that helped to improve the manuscript.
PY - 2024/5/1
Y1 - 2024/5/1
N2 - Anthropogenically-driven climate warming and land use change are the main causes of an ongoing decrease in global biodiversity. It is unclear how ecosystems, particularly freshwater habitats, will respond to such continuous and potentially intensifying disruptions. Here we analyse how different components of terrestrial and aquatic ecosystems responded to natural climate change during the Lateglacial. By applying a range of analytical techniques (sedimentology, palaeoecology, geochemistry) to the well-dated sediment archive from Lake Hämelsee (Germany), we show evidence for vegetation development, landscape dynamics and aquatic ecosystem change typical for northwest Europe during the Lateglacial. By particularly focussing on periods of abrupt climate change, we determine the timing and duration of changes in biodiversity in response to external forcing. We show that onsets of changes in biodiversity indicators (e.g. diatom composition, Pediastrum concentrations) lag changes in environmental records (e.g. loss-on-ignition) by a few decades, particularly at the Allerød/Younger Dryas transition. Most biodiversity indicators showed transition times of 10–50 years, whereas environmental records typically showed a 50–100 year long transition. In some cases, transition times observed for the compositional turnover or productivity records were up to 185 years, which could have been the result of the combined effects of direct (e.g. climate) and indirect (e.g. lake stratification) drivers of ecosystem change. Our results show differences in timing and duration of biodiversity responses to external disturbances, suggesting that a multi-decadal view needs to be taken when designing effective conservation management of freshwater ecosystems under current global warming.
AB - Anthropogenically-driven climate warming and land use change are the main causes of an ongoing decrease in global biodiversity. It is unclear how ecosystems, particularly freshwater habitats, will respond to such continuous and potentially intensifying disruptions. Here we analyse how different components of terrestrial and aquatic ecosystems responded to natural climate change during the Lateglacial. By applying a range of analytical techniques (sedimentology, palaeoecology, geochemistry) to the well-dated sediment archive from Lake Hämelsee (Germany), we show evidence for vegetation development, landscape dynamics and aquatic ecosystem change typical for northwest Europe during the Lateglacial. By particularly focussing on periods of abrupt climate change, we determine the timing and duration of changes in biodiversity in response to external forcing. We show that onsets of changes in biodiversity indicators (e.g. diatom composition, Pediastrum concentrations) lag changes in environmental records (e.g. loss-on-ignition) by a few decades, particularly at the Allerød/Younger Dryas transition. Most biodiversity indicators showed transition times of 10–50 years, whereas environmental records typically showed a 50–100 year long transition. In some cases, transition times observed for the compositional turnover or productivity records were up to 185 years, which could have been the result of the combined effects of direct (e.g. climate) and indirect (e.g. lake stratification) drivers of ecosystem change. Our results show differences in timing and duration of biodiversity responses to external disturbances, suggesting that a multi-decadal view needs to be taken when designing effective conservation management of freshwater ecosystems under current global warming.
KW - Biodiversity
KW - Europe
KW - Lake sediment
KW - Multi-proxy
KW - Palaeoenvironment
KW - Productivity
KW - Younger Dryas
UR - http://www.scopus.com/inward/record.url?scp=85190331258&partnerID=8YFLogxK
U2 - 10.1016/j.quascirev.2024.108634
DO - 10.1016/j.quascirev.2024.108634
M3 - Article
AN - SCOPUS:85190331258
VL - 331
JO - Quaternary science reviews
JF - Quaternary science reviews
SN - 0277-3791
M1 - 108634
ER -