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Isotopic variance among plant lipid homologues correlates with biodiversity patterns of their source communities

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Isotopic variance among plant lipid homologues correlates with biodiversity patterns of their source communities. / Magill, Clayton R.; Eglinton, Geoffrey; Eglinton, Timothy I.

In: PLoS ONE, Vol. 14, No. 2, e0212211, 27.02.2019.

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Magill, Clayton R. ; Eglinton, Geoffrey ; Eglinton, Timothy I. / Isotopic variance among plant lipid homologues correlates with biodiversity patterns of their source communities. In: PLoS ONE. 2019 ; Vol. 14, No. 2.

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@article{bbd6d286ab7f4ba7a67a0d3552c880c4,
title = "Isotopic variance among plant lipid homologues correlates with biodiversity patterns of their source communities",
abstract = "Plant diversity is important to human welfare worldwide, and this importance is exemplified in subtropical and tropical [(sub)tropical] African savannahs where regional biodiversity enhances the sustaining provision of basic ecosystem services available to millions of residents. Yet, there is a critical lack of knowledge about how savannahs respond to climate change. Here, we report the relationships between savannah vegetation structure, species richness, and bioclimatic variables as recorded by plant biochemical fossils, called biomarkers. Our analyses reveal that the stable carbon isotope composition (δ 13 C) of discrete sedimentary plant biomarkers reflects vegetation structure, but the isotopic range among plant biomarkers–which we call LEaf Wax Isotopic Spread (LEWIS)–reflects species richness. Analyses of individual biomarker δ 13 C values and LEWIS for downcore sediments recovered from southeast Africa reveal that the region’s species richness mirrored trends in atmospheric carbon dioxide concentration (pCO 2 ) throughout the last 25,000 years. This suggests that increasing pCO 2 levels during post-industrialization may prompt future declines in regional biodiversity (1–10 species per unit CO 2 p.p.m.v.) through imminent habitat loss or extinction.",
author = "Magill, {Clayton R.} and Geoffrey Eglinton and Eglinton, {Timothy I.}",
year = "2019",
month = "2",
day = "27",
doi = "10.1371/journal.pone.0212211",
language = "English",
volume = "14",
journal = "PLoS ONE",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "2",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Isotopic variance among plant lipid homologues correlates with biodiversity patterns of their source communities

AU - Magill, Clayton R.

AU - Eglinton, Geoffrey

AU - Eglinton, Timothy I.

PY - 2019/2/27

Y1 - 2019/2/27

N2 - Plant diversity is important to human welfare worldwide, and this importance is exemplified in subtropical and tropical [(sub)tropical] African savannahs where regional biodiversity enhances the sustaining provision of basic ecosystem services available to millions of residents. Yet, there is a critical lack of knowledge about how savannahs respond to climate change. Here, we report the relationships between savannah vegetation structure, species richness, and bioclimatic variables as recorded by plant biochemical fossils, called biomarkers. Our analyses reveal that the stable carbon isotope composition (δ 13 C) of discrete sedimentary plant biomarkers reflects vegetation structure, but the isotopic range among plant biomarkers–which we call LEaf Wax Isotopic Spread (LEWIS)–reflects species richness. Analyses of individual biomarker δ 13 C values and LEWIS for downcore sediments recovered from southeast Africa reveal that the region’s species richness mirrored trends in atmospheric carbon dioxide concentration (pCO 2 ) throughout the last 25,000 years. This suggests that increasing pCO 2 levels during post-industrialization may prompt future declines in regional biodiversity (1–10 species per unit CO 2 p.p.m.v.) through imminent habitat loss or extinction.

AB - Plant diversity is important to human welfare worldwide, and this importance is exemplified in subtropical and tropical [(sub)tropical] African savannahs where regional biodiversity enhances the sustaining provision of basic ecosystem services available to millions of residents. Yet, there is a critical lack of knowledge about how savannahs respond to climate change. Here, we report the relationships between savannah vegetation structure, species richness, and bioclimatic variables as recorded by plant biochemical fossils, called biomarkers. Our analyses reveal that the stable carbon isotope composition (δ 13 C) of discrete sedimentary plant biomarkers reflects vegetation structure, but the isotopic range among plant biomarkers–which we call LEaf Wax Isotopic Spread (LEWIS)–reflects species richness. Analyses of individual biomarker δ 13 C values and LEWIS for downcore sediments recovered from southeast Africa reveal that the region’s species richness mirrored trends in atmospheric carbon dioxide concentration (pCO 2 ) throughout the last 25,000 years. This suggests that increasing pCO 2 levels during post-industrialization may prompt future declines in regional biodiversity (1–10 species per unit CO 2 p.p.m.v.) through imminent habitat loss or extinction.

UR - http://www.scopus.com/inward/record.url?scp=85062171256&partnerID=8YFLogxK

U2 - 10.1371/journal.pone.0212211

DO - 10.1371/journal.pone.0212211

M3 - Article

VL - 14

JO - PLoS ONE

JF - PLoS ONE

SN - 1932-6203

IS - 2

M1 - e0212211

ER -