Rates of Dinosaur Body Mass Evolution Indicate 170 Million Years of Sustained Ecological Innovation on the Avian Stem Lineage

IVPP-IR > 中科院古脊椎所（2000年以后）

	Rates of Dinosaur Body Mass Evolution Indicate 170 Million Years of Sustained Ecological Innovation on the Avian Stem Lineage
	Benson, Roger B. J.1; Campione, Nicolas E.2,3,4; Carrano, Matthew T.5; Mannion, Philip D.6; Sullivan, Corwin 7; Upchurch, Paul 8; Evans, David C.4,9
	2014-05-01
发表期刊	PLOS BIOLOGY
卷号	12 期号:5
文章类型	Article
摘要	Large-scale adaptive radiations might explain the runaway success of a minority of extant vertebrate clades. This hypothesis predicts, among other things, rapid rates of morphological evolution during the early history of major groups, as lineages invade disparate ecological niches. However, few studies of adaptive radiation have included deep time data, so the links between extant diversity and major extinct radiations are unclear. The intensively studied Mesozoic dinosaur record provides a model system for such investigation, representing an ecologically diverse group that dominated terrestrial ecosystems for 170 million years. Furthermore, with 10,000 species, extant dinosaurs (birds) are the most speciose living tetrapod clade. We assembled composite trees of 614-622 Mesozoic dinosaurs/birds, and a comprehensive body mass dataset using the scaling relationship of limb bone robustness. Maximum-likelihood modelling and the node height test reveal rapid evolutionary rates and a predominance of rapid shifts among size classes in early (Triassic) dinosaurs. This indicates an early burst niche-filling pattern and contrasts with previous studies that favoured gradualistic rates. Subsequently, rates declined in most lineages, which rarely exploited new ecological niches. However, feathered maniraptoran dinosaurs (including Mesozoic birds) sustained rapid evolution from at least the Middle Jurassic, suggesting that these taxa evaded the effects of niche saturation. This indicates that a long evolutionary history of continuing ecological innovation paved the way for a second great radiation of dinosaurs, in birds. We therefore demonstrate links between the predominantly extinct deep time adaptive radiation of non-avian dinosaurs and the phenomenal diversification of birds, via continuing rapid rates of evolution along the phylogenetic stem lineage. This raises the possibility that the uneven distribution of biodiversity results not just from large-scale extrapolation of the process of adaptive radiation in a few extant clades, but also from the maintenance of evolvability on vast time scales across the history of life, in key lineages.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	CRETACEOUS-PALEOGENE BOUNDARY ; ADAPTIVE RADIATION ; SIZE EVOLUTION ; MORPHOLOGICAL DISPARITY ; STABILIZING SELECTION ; SPECIES-DIVERSITY ; CHARACTER CHANGE ; RED QUEEN ; MAMMALS ; EXTINCTION
收录类别	SCI
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics
WOS类目	Biochemistry & Molecular Biology ; Biology
WOS记录号	WOS:000336969200004
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7362
专题	中科院古脊椎所（2000年以后）
作者单位	1.Univ Oxford, Dept Earth Sci, Oxford OX1 3PR, England 2.Uppsala Univ, Dept Earth Sci Palaeobiol, Uppsala, Sweden 3.Uppsala Univ, Dept Organismal Biol Evolut & Dev, Uppsala, Sweden 4.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON, Canada 5.Smithsonian Inst, Dept Paleobiol, Washington, DC 20560 USA 6.Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London, England 7.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 8.UCL, Dept Earth Sci, London, England 9.Royal Ontario Museum, Dept Nat Hist, Toronto, ON M5S 2C6, Canada
推荐引用方式 GB/T 7714	Benson, Roger B. J.,Campione, Nicolas E.,Carrano, Matthew T.,et al. Rates of Dinosaur Body Mass Evolution Indicate 170 Million Years of Sustained Ecological Innovation on the Avian Stem Lineage[J]. PLOS BIOLOGY,2014,12(5).
APA	Benson, Roger B. J..,Campione, Nicolas E..,Carrano, Matthew T..,Mannion, Philip D..,Sullivan, Corwin.,...&Evans, David C..(2014).Rates of Dinosaur Body Mass Evolution Indicate 170 Million Years of Sustained Ecological Innovation on the Avian Stem Lineage.PLOS BIOLOGY,12(5).
MLA	Benson, Roger B. J.,et al."Rates of Dinosaur Body Mass Evolution Indicate 170 Million Years of Sustained Ecological Innovation on the Avian Stem Lineage".PLOS BIOLOGY 12.5(2014).