Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Land-sea ecological connectivity during a Jurassic warming event
Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Florence, Italy.
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0003-1766-3516
Swedish Museum of Natural History, Department of Paleobiology. Department of Geology, Lund University, Sweden.ORCID iD: 0000-0003-2987-5559
cDepartment of Earth Sciences, The Natural History Museum, London, SW7 5BD, UK.
2022 (English)In: Earth and Planetary Science Letters, ISSN 0012-821X, E-ISSN 1385-013X, Vol. 578, p. 117290-117290, article id 117290Article in journal (Refereed) Published
Abstract [en]

Knowledge on how climate change affects land-sea ecological connectivity in deep time is scarce. To fill this knowledge gap we have assembled a unique dataset through a Jurassic (early Toarcian) warming event that includes quantitative abundance data from pollen and spores, organic-walled marine plankton and benthic macro-invertebrates, in association with geochemical data derived from the same sampled horizons, from the Cleveland Basin, UK. Using this dataset we: (i) reconstruct the timing of degradation and recovery of land-plants, marine primary producers and benthic fauna in response to this event, and (ii) test for connectivity between changes in land and marine ecosystems. We find a discrepancy between the timing of the response of land-plant and marine ecosystems to the event. Land-plants were the first to be affected by initial warming, but also recovered relatively quickly after the peak of warmth to return to pre-event levels of richness and diversity. Plankton and benthic fauna instead experienced a delayed response to initial warming, but as warming peaked, they suffered a rapid and extreme turnover. Recovery in the shelf sea was also delayed (particularly for the benthos) compared to the vegetation. Ecological connectivity analyses show a strong link between changes in terrestrial and marine ecosystems. The loss of large trees on land contributed to changes in marine plankton, from dinoflagellate-to prasinophyte algal-dominated communities, by enhancing erosion, runoff and nutrient-supply into shallow seas. Eutrophication and changes in primary productivity contributed to the decrease of dissolved oxygen in the water column and in bottom waters, which in turn affected benthic communities. Such cause-effect mechanisms observed in the Cleveland Basin are likely to have occurred in other basins of the Boreal Realm, and in part also in basins of the Sub-Boreal and Tethyan realms. Although palaeolatitudinal and palaeoceanographic gradients may have controlled local and regional changes in land-plants and marine ecosystems during the Early Jurassic, the main climatic and environmental changes linked to rapid global warming, enhanced weathering and high primary productivity, are shared among all the examined realms.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2022. Vol. 578, p. 117290-117290, article id 117290
Keywords [en]
global warming, Toarcian, extinction, pollen and spores, phytoplankton, benthos
National Category
Other Earth and Related Environmental Sciences
Research subject
The changing Earth
Identifiers
URN: urn:nbn:se:nrm:diva-4883DOI: 10.1016/j.epsl.2021.117290OAI: oai:DiVA.org:nrm-4883DiVA, id: diva2:1714552
Funder
NERC - the Natural Environment Research Council, NE/I005641/1Swedish Research Council, 2019-04061Swedish Research Council, 2019-04524
Note

This research was funded by a Swedish Research Council grant to S.M.S. [grant no. 2019-04524] and to V.V. [grant no. 2019-04061], and a Natu-ral Environment Research Council (NERC) grant to R.J.T. [grant no. NE/I005641/1].

Available from: 2022-11-29 Created: 2022-11-29Bibliographically approved

Open Access in DiVA

fulltext(1399 kB)71 downloads
File information
File name FULLTEXT01.pdfFile size 1399 kBChecksum SHA-512
f3ee30173345a6692b10754806d0ac243e1a7594a7ef4c96648332dc3f66540c7c6a03dfc498467f3efa4418b9789a291ac9bf0da7f01be7cc45a4c51feaf246
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Slater, Sam MVajda, Vivi
By organisation
Department of Paleobiology
In the same journal
Earth and Planetary Science Letters
Other Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 71 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 49 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf