Quantifying the deep-sea rock and fossil record bias using coccolithophores
While many studies show a correlation between observed taxonomic richness and various measures of geological sampling, all have been based on the same record of terrestrial and marine sediments collected from the land. Here we present the first analyses of how rock and fossil records vary in the dee...
Published in: | Geological Society, London, Special Publications |
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Language: | English |
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Online Access: | https://doi.org/10.1144/SP358.11 https://ora.ox.ac.uk/objects/uuid:cd75a09e-6548-4a3b-8377-98b5ebd3317b |
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ftuloxford:oai:ora.ox.ac.uk:uuid:cd75a09e-6548-4a3b-8377-98b5ebd3317b 2023-05-15T17:33:12+02:00 Quantifying the deep-sea rock and fossil record bias using coccolithophores Lloyd, G Smith, AB Young, JR 2016-07-29 https://doi.org/10.1144/SP358.11 https://ora.ox.ac.uk/objects/uuid:cd75a09e-6548-4a3b-8377-98b5ebd3317b eng eng doi:10.1144/SP358.11 https://ora.ox.ac.uk/objects/uuid:cd75a09e-6548-4a3b-8377-98b5ebd3317b https://doi.org/10.1144/SP358.11 info:eu-repo/semantics/embargoedAccess Journal article 2016 ftuloxford https://doi.org/10.1144/SP358.11 2022-06-28T20:24:13Z While many studies show a correlation between observed taxonomic richness and various measures of geological sampling, all have been based on the same record of terrestrial and marine sediments collected from the land. Here we present the first analyses of how rock and fossil records vary in the deep-sea. We have developed a novel database of species occurrences of coccolithophores sampled during major drilling programs of the North Atlantic, including the Mediterranean and Caribbean. Our sampling proxy, the number of deep-sea sites sampled - perhaps the most direct measure of sampling used so far - shows an exponential rise towards the Recent. Over the same period species-richness has grown in an approximately linear fashion, but genus-level richness shows a sharp initial increase followed by a much slower decline. However, correlations between both richness measures and sampling are extremely strong and a model assuming true diversity to be constant accurately predicts much of observed richness. We conclude that the deep-sea fossil record, like its land-based counterpart, bears a rock record bias. © The Geological Society of London 2011. Article in Journal/Newspaper North Atlantic ORA - Oxford University Research Archive Geological Society, London, Special Publications 358 1 167 177 |
institution |
Open Polar |
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ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
English |
description |
While many studies show a correlation between observed taxonomic richness and various measures of geological sampling, all have been based on the same record of terrestrial and marine sediments collected from the land. Here we present the first analyses of how rock and fossil records vary in the deep-sea. We have developed a novel database of species occurrences of coccolithophores sampled during major drilling programs of the North Atlantic, including the Mediterranean and Caribbean. Our sampling proxy, the number of deep-sea sites sampled - perhaps the most direct measure of sampling used so far - shows an exponential rise towards the Recent. Over the same period species-richness has grown in an approximately linear fashion, but genus-level richness shows a sharp initial increase followed by a much slower decline. However, correlations between both richness measures and sampling are extremely strong and a model assuming true diversity to be constant accurately predicts much of observed richness. We conclude that the deep-sea fossil record, like its land-based counterpart, bears a rock record bias. © The Geological Society of London 2011. |
format |
Article in Journal/Newspaper |
author |
Lloyd, G Smith, AB Young, JR |
spellingShingle |
Lloyd, G Smith, AB Young, JR Quantifying the deep-sea rock and fossil record bias using coccolithophores |
author_facet |
Lloyd, G Smith, AB Young, JR |
author_sort |
Lloyd, G |
title |
Quantifying the deep-sea rock and fossil record bias using coccolithophores |
title_short |
Quantifying the deep-sea rock and fossil record bias using coccolithophores |
title_full |
Quantifying the deep-sea rock and fossil record bias using coccolithophores |
title_fullStr |
Quantifying the deep-sea rock and fossil record bias using coccolithophores |
title_full_unstemmed |
Quantifying the deep-sea rock and fossil record bias using coccolithophores |
title_sort |
quantifying the deep-sea rock and fossil record bias using coccolithophores |
publishDate |
2016 |
url |
https://doi.org/10.1144/SP358.11 https://ora.ox.ac.uk/objects/uuid:cd75a09e-6548-4a3b-8377-98b5ebd3317b |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1144/SP358.11 https://ora.ox.ac.uk/objects/uuid:cd75a09e-6548-4a3b-8377-98b5ebd3317b https://doi.org/10.1144/SP358.11 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.1144/SP358.11 |
container_title |
Geological Society, London, Special Publications |
container_volume |
358 |
container_issue |
1 |
container_start_page |
167 |
op_container_end_page |
177 |
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1766131625176858624 |