Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects?
International audience For several decades, the origin and ecological consequences of large-scale continental and marine Latitudinal Gradients of Taxonomic Richness (LGTR) have been intensively debated. Among the various hypotheses, it has been proposed that a LGTR is the by-product of a geographic...
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ftunivlyon1:oai:HAL:hal-00180263v1 2023-05-15T18:00:37+02:00 Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? Brayard, Arnaud Escarguel, Gilles Bucher, Hugo PaleoEnvironnements et PaleobioSphere (PEPS) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Paläontologisches Institut und Museum Universität Zürich Zürich = University of Zurich (UZH) 2005 https://hal.science/hal-00180263 https://doi.org/10.1111/j.1439-0469.2005.00311.178–188 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0469.2005.00311.178–188 hal-00180263 https://hal.science/hal-00180263 doi:10.1111/j.1439-0469.2005.00311.178–188 ISSN: 0947-5745 EISSN: 1439-0469 Journal of Zoological Systematics and Evolutionary Research https://hal.science/hal-00180263 Journal of Zoological Systematics and Evolutionary Research, 2005, 43 (3), pp.178-188. ⟨10.1111/j.1439-0469.2005.00311.178–188⟩ Latitudinal gradient of taxonomic richness probabilistic model sea surface temperature currents mid-domain effect Planktonic Foraminifera Atlantic Ocean [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2005 ftunivlyon1 https://doi.org/10.1111/j.1439-0469.2005.00311.178–188 2023-04-07T13:04:49Z International audience For several decades, the origin and ecological consequences of large-scale continental and marine Latitudinal Gradients of Taxonomic Richness (LGTR) have been intensively debated. Among the various hypotheses, it has been proposed that a LGTR is the by-product of a geographic middomain effect, i.e. the result of a random distribution of ranges of taxa between physical hard boundaries such as the continent/ocean interface. In order to more realistically evaluate the role of the mid-domain effect on the origin and evolution of the LGTR of marine planktonic organisms, we present a 2D model based on a cellular-automaton approach in which sea surface temperatures (SST) and currents are forced in the biogeographic dispersal of a randomly generated clade (a 2D ‘geophyletic' model). Sensitivity experiments allow to evaluate the effects of currents, SST and the geographical origin of a clade on the formation and shape of a LGTR for planktonic organisms when coupled with a geographic mid-domain effect. Results are discussed in the light of the empirical LGTR of extant planktonic Foraminifera in the Atlantic Ocean. Independently of any other biotic or abiotic parameter, inclusive of the surface currents and origination/extinction absolute and relative rates, our simulations show that the coupling of the mid-domain effect with two critical parameters, namely the shape and intensity of the SST gradient and the geographic origin of a clade, produces realistic patterns of diversity when compared with the observed LGTR of extant atlantic planktonic foraminifera. The results illustrate a non-linear relation between a unimodal latitudinal SST gradient and a resulting bimodal LGTR characterized by a drop in species richness near the equator. This relation indicates that the SST gradient exerts a mid-domain effect on the LGTR. The latitudinal positions of the modal values of the LGTR are also found to be influenced by the geographic origin of the simulated clade. Article in Journal/Newspaper Planktonic foraminifera HAL Lyon 1 (University Claude Bernard Lyon 1) |
institution |
Open Polar |
collection |
HAL Lyon 1 (University Claude Bernard Lyon 1) |
op_collection_id |
ftunivlyon1 |
language |
English |
topic |
Latitudinal gradient of taxonomic richness probabilistic model sea surface temperature currents mid-domain effect Planktonic Foraminifera Atlantic Ocean [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Latitudinal gradient of taxonomic richness probabilistic model sea surface temperature currents mid-domain effect Planktonic Foraminifera Atlantic Ocean [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Brayard, Arnaud Escarguel, Gilles Bucher, Hugo Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
topic_facet |
Latitudinal gradient of taxonomic richness probabilistic model sea surface temperature currents mid-domain effect Planktonic Foraminifera Atlantic Ocean [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience For several decades, the origin and ecological consequences of large-scale continental and marine Latitudinal Gradients of Taxonomic Richness (LGTR) have been intensively debated. Among the various hypotheses, it has been proposed that a LGTR is the by-product of a geographic middomain effect, i.e. the result of a random distribution of ranges of taxa between physical hard boundaries such as the continent/ocean interface. In order to more realistically evaluate the role of the mid-domain effect on the origin and evolution of the LGTR of marine planktonic organisms, we present a 2D model based on a cellular-automaton approach in which sea surface temperatures (SST) and currents are forced in the biogeographic dispersal of a randomly generated clade (a 2D ‘geophyletic' model). Sensitivity experiments allow to evaluate the effects of currents, SST and the geographical origin of a clade on the formation and shape of a LGTR for planktonic organisms when coupled with a geographic mid-domain effect. Results are discussed in the light of the empirical LGTR of extant planktonic Foraminifera in the Atlantic Ocean. Independently of any other biotic or abiotic parameter, inclusive of the surface currents and origination/extinction absolute and relative rates, our simulations show that the coupling of the mid-domain effect with two critical parameters, namely the shape and intensity of the SST gradient and the geographic origin of a clade, produces realistic patterns of diversity when compared with the observed LGTR of extant atlantic planktonic foraminifera. The results illustrate a non-linear relation between a unimodal latitudinal SST gradient and a resulting bimodal LGTR characterized by a drop in species richness near the equator. This relation indicates that the SST gradient exerts a mid-domain effect on the LGTR. The latitudinal positions of the modal values of the LGTR are also found to be influenced by the geographic origin of the simulated clade. |
author2 |
PaleoEnvironnements et PaleobioSphere (PEPS) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Paläontologisches Institut und Museum Universität Zürich Zürich = University of Zurich (UZH) |
format |
Article in Journal/Newspaper |
author |
Brayard, Arnaud Escarguel, Gilles Bucher, Hugo |
author_facet |
Brayard, Arnaud Escarguel, Gilles Bucher, Hugo |
author_sort |
Brayard, Arnaud |
title |
Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
title_short |
Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
title_full |
Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
title_fullStr |
Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
title_full_unstemmed |
Latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
title_sort |
latitudinal gradient of taxonomic richness: combined outcome of temperature and geographic mid-domains effects? |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00180263 https://doi.org/10.1111/j.1439-0469.2005.00311.178–188 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 0947-5745 EISSN: 1439-0469 Journal of Zoological Systematics and Evolutionary Research https://hal.science/hal-00180263 Journal of Zoological Systematics and Evolutionary Research, 2005, 43 (3), pp.178-188. ⟨10.1111/j.1439-0469.2005.00311.178–188⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0469.2005.00311.178–188 hal-00180263 https://hal.science/hal-00180263 doi:10.1111/j.1439-0469.2005.00311.178–188 |
op_doi |
https://doi.org/10.1111/j.1439-0469.2005.00311.178–188 |
_version_ |
1766169778952601600 |