An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.

Sauropod dinosaurs are a group of herbivorous dinosaurs which exceeded all other terrestrial vertebrates in mean and maximal body size. Sauropod dinosaurs were also the most successful and long-lived herbivorous tetrapod clade, but no abiological factors such as global environmental parameters condu...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	P Martin Sander
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d4289fbed207477f9d52834b4ef78e62
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d4289fbed207477f9d52834b4ef78e62
record_format	dspace
spelling	oai:doaj.org-article:d4289fbed207477f9d52834b4ef78e622021-11-18T08:48:52ZAn evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.1932-620310.1371/journal.pone.0078573https://doaj.org/article/d4289fbed207477f9d52834b4ef78e622013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24205267/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Sauropod dinosaurs are a group of herbivorous dinosaurs which exceeded all other terrestrial vertebrates in mean and maximal body size. Sauropod dinosaurs were also the most successful and long-lived herbivorous tetrapod clade, but no abiological factors such as global environmental parameters conducive to their gigantism can be identified. These facts justify major efforts by evolutionary biologists and paleontologists to understand sauropods as living animals and to explain their evolutionary success and uniquely gigantic body size. Contributions to this research program have come from many fields and can be synthesized into a biological evolutionary cascade model of sauropod dinosaur gigantism (sauropod gigantism ECM). This review focuses on the sauropod gigantism ECM, providing an updated version based on the contributions to the PLoS ONE sauropod gigantism collection and on other very recent published evidence. The model consist of five separate evolutionary cascades ("Reproduction", "Feeding", "Head and neck", "Avian-style lung", and "Metabolism"). Each cascade starts with observed or inferred basal traits that either may be plesiomorphic or derived at the level of Sauropoda. Each trait confers hypothetical selective advantages which permit the evolution of the next trait. Feedback loops in the ECM consist of selective advantages originating from traits higher in the cascades but affecting lower traits. All cascades end in the trait "Very high body mass". Each cascade is linked to at least one other cascade. Important plesiomorphic traits of sauropod dinosaurs that entered the model were ovipary as well as no mastication of food. Important evolutionary innovations (derived traits) were an avian-style respiratory system and an elevated basal metabolic rate. Comparison with other tetrapod lineages identifies factors limiting body size.P Martin SanderPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e78573 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q P Martin Sander An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
description	Sauropod dinosaurs are a group of herbivorous dinosaurs which exceeded all other terrestrial vertebrates in mean and maximal body size. Sauropod dinosaurs were also the most successful and long-lived herbivorous tetrapod clade, but no abiological factors such as global environmental parameters conducive to their gigantism can be identified. These facts justify major efforts by evolutionary biologists and paleontologists to understand sauropods as living animals and to explain their evolutionary success and uniquely gigantic body size. Contributions to this research program have come from many fields and can be synthesized into a biological evolutionary cascade model of sauropod dinosaur gigantism (sauropod gigantism ECM). This review focuses on the sauropod gigantism ECM, providing an updated version based on the contributions to the PLoS ONE sauropod gigantism collection and on other very recent published evidence. The model consist of five separate evolutionary cascades ("Reproduction", "Feeding", "Head and neck", "Avian-style lung", and "Metabolism"). Each cascade starts with observed or inferred basal traits that either may be plesiomorphic or derived at the level of Sauropoda. Each trait confers hypothetical selective advantages which permit the evolution of the next trait. Feedback loops in the ECM consist of selective advantages originating from traits higher in the cascades but affecting lower traits. All cascades end in the trait "Very high body mass". Each cascade is linked to at least one other cascade. Important plesiomorphic traits of sauropod dinosaurs that entered the model were ovipary as well as no mastication of food. Important evolutionary innovations (derived traits) were an avian-style respiratory system and an elevated basal metabolic rate. Comparison with other tetrapod lineages identifies factors limiting body size.
format	article
author	P Martin Sander
author_facet	P Martin Sander
author_sort	P Martin Sander
title	An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
title_short	An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
title_full	An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
title_fullStr	An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
title_full_unstemmed	An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
title_sort	evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/d4289fbed207477f9d52834b4ef78e62
work_keys_str_mv	AT pmartinsander anevolutionarycascademodelforsauropoddinosaurgigantismoverviewupdateandtests AT pmartinsander evolutionarycascademodelforsauropoddinosaurgigantismoverviewupdateandtests
_version_	1718421289815769088

An evolutionary cascade model for sauropod dinosaur gigantism--overview, update and tests.

Ejemplares similares