Cargando…
Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America
In order for palaeontological data to be informative to ecologists seeking to understand the causes of today's diversity patterns, palaeontologists must demonstrate that actual biodiversity patterns are preserved in our reconstructions of past ecosystems. During the Late Cretaceous, North Ameri...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8220268/ https://www.ncbi.nlm.nih.gov/pubmed/34157868 http://dx.doi.org/10.1098/rspb.2021.0692 |
_version_ | 1783711112543338496 |
---|---|
author | Maidment, Susannah C. R. Dean, Christopher D. Mansergh, Robert I. Butler, Richard J. |
author_facet | Maidment, Susannah C. R. Dean, Christopher D. Mansergh, Robert I. Butler, Richard J. |
author_sort | Maidment, Susannah C. R. |
collection | PubMed |
description | In order for palaeontological data to be informative to ecologists seeking to understand the causes of today's diversity patterns, palaeontologists must demonstrate that actual biodiversity patterns are preserved in our reconstructions of past ecosystems. During the Late Cretaceous, North America was divided into two landmasses, Laramidia and Appalachia. Previous work has suggested strong faunal provinciality on Laramidia at this time, but these arguments are almost entirely qualitative. We quantitatively investigated faunal provinciality in ceratopsid and hadrosaurid dinosaurs using a biogeographic network approach and investigated sampling biases by examining correlations between dinosaur occurrences and collections. We carried out a model-fitting approach using generalized least-squares regression to investigate the sources of sampling bias we identified. We find that while the raw data strongly support faunal provinciality, this result is driven by sampling bias. The data quality of ceratopsids and hadrosaurids is currently too poor to enable fair tests of provincialism, even in this intensively sampled region, which probably represents the best-known Late Cretaceous terrestrial ecosystem on Earth. To accurately reconstruct biodiversity patterns in deep time, future work should focus on smaller scale, higher resolution case studies in which the effects of sampling bias can be better controlled. |
format | Online Article Text |
id | pubmed-8220268 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-82202682021-08-09 Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America Maidment, Susannah C. R. Dean, Christopher D. Mansergh, Robert I. Butler, Richard J. Proc Biol Sci Palaeobiology In order for palaeontological data to be informative to ecologists seeking to understand the causes of today's diversity patterns, palaeontologists must demonstrate that actual biodiversity patterns are preserved in our reconstructions of past ecosystems. During the Late Cretaceous, North America was divided into two landmasses, Laramidia and Appalachia. Previous work has suggested strong faunal provinciality on Laramidia at this time, but these arguments are almost entirely qualitative. We quantitatively investigated faunal provinciality in ceratopsid and hadrosaurid dinosaurs using a biogeographic network approach and investigated sampling biases by examining correlations between dinosaur occurrences and collections. We carried out a model-fitting approach using generalized least-squares regression to investigate the sources of sampling bias we identified. We find that while the raw data strongly support faunal provinciality, this result is driven by sampling bias. The data quality of ceratopsids and hadrosaurids is currently too poor to enable fair tests of provincialism, even in this intensively sampled region, which probably represents the best-known Late Cretaceous terrestrial ecosystem on Earth. To accurately reconstruct biodiversity patterns in deep time, future work should focus on smaller scale, higher resolution case studies in which the effects of sampling bias can be better controlled. The Royal Society 2021-06-30 2021-06-23 /pmc/articles/PMC8220268/ /pubmed/34157868 http://dx.doi.org/10.1098/rspb.2021.0692 Text en © 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Palaeobiology Maidment, Susannah C. R. Dean, Christopher D. Mansergh, Robert I. Butler, Richard J. Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America |
title | Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America |
title_full | Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America |
title_fullStr | Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America |
title_full_unstemmed | Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America |
title_short | Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America |
title_sort | deep-time biodiversity patterns and the dinosaurian fossil record of the late cretaceous western interior, north america |
topic | Palaeobiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8220268/ https://www.ncbi.nlm.nih.gov/pubmed/34157868 http://dx.doi.org/10.1098/rspb.2021.0692 |
work_keys_str_mv | AT maidmentsusannahcr deeptimebiodiversitypatternsandthedinosaurianfossilrecordofthelatecretaceouswesterninteriornorthamerica AT deanchristopherd deeptimebiodiversitypatternsandthedinosaurianfossilrecordofthelatecretaceouswesterninteriornorthamerica AT manserghroberti deeptimebiodiversitypatternsandthedinosaurianfossilrecordofthelatecretaceouswesterninteriornorthamerica AT butlerrichardj deeptimebiodiversitypatternsandthedinosaurianfossilrecordofthelatecretaceouswesterninteriornorthamerica |