Absolute abundance and preservation rate of <em>Tyrannosaurus rex</em>

doi:10.1126/science.abc8300

GSTDTAP > 气候变化

DOI	10.1126/science.abc8300
	Absolute abundance and preservation rate of Tyrannosaurus rex
	Charles R. Marshall; Daniel V. Latorre; Connor J. Wilson; Tanner M. Frank; Katherine M. Magoulick; Joshua B. Zimmt; Ashley W. Poust
	2021-04-16
发表期刊	Science
出版年	2021
英文摘要	Estimating the abundance of a species is a common practice for extant species and can reveal many aspects of its ecology, evolution, and threat level. Estimating abundance for species that are extinct, especially those long extinct, is a much trickier endeavor. Marshall et al. used a relationship established between body size and population density in extant species to estimate traits such as density, distribution, total biomass, and species persistence for one of the best-known dinosaurs, Tyrannosaurus rex , revealing previously hidden aspects of its population ecology. Science , this issue p. [284][1] Although much can be deduced from fossils alone, estimating abundance and preservation rates of extinct species requires data from living species. Here, we use the relationship between population density and body mass among living species combined with our substantial knowledge of Tyrannosaurus rex to calculate population variables and preservation rates for postjuvenile T. rex . We estimate that its abundance at any one time was ~20,000 individuals, that it persisted for ~127,000 generations, and that the total number of T. rex that ever lived was ~2.5 billion individuals, with a fossil recovery rate of 1 per ~80 million individuals or 1 per 16,000 individuals where its fossils are most abundant. The uncertainties in these values span more than two orders of magnitude, largely because of the variance in the density–body mass relationship rather than variance in the paleobiological input variables. [1]: /lookup/doi/10.1126/science.abc8300
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/322898
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Charles R. Marshall,Daniel V. Latorre,Connor J. Wilson,et al. Absolute abundance and preservation rate of Tyrannosaurus rex[J]. Science,2021.
APA	Charles R. Marshall.,Daniel V. Latorre.,Connor J. Wilson.,Tanner M. Frank.,Katherine M. Magoulick.,...&Ashley W. Poust.(2021).Absolute abundance and preservation rate of Tyrannosaurus rex.Science.
MLA	Charles R. Marshall,et al."Absolute abundance and preservation rate of Tyrannosaurus rex".Science (2021).