Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-24T00:45:52.789Z Has data issue: false hasContentIssue false

Testing for equality of rates of evolution

Published online by Cambridge University Press:  08 April 2016

Jennifer A. Kitchell
Affiliation:
Museum of Paleontology and Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109
George Estabrook
Affiliation:
Department of Biological Sciences, University of Michigan, Ann Arbor, Michigan 48109
Norman MacLeod
Affiliation:
Museum of Paleontology and Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109

Abstract

A new method of data analysis offers a potentially powerful tool for statistically evaluating hypotheses of rate in temporally-ordered evolutionary phenomena. We present a method for bootstrapping time-ordered data sets to test hypotheses of the equality of rate. This method is applicable to both nonrandom and random generative processes. The method is applied to the data of Malmgren et al. (1983) for the Globorotalia plesiotumida–G. tumida planktonic foraminiferan lineage and the data of Reyment (1982) for the benthonic foraminiferan Afrobolivina afar. G. plesiotumida is recognizable on the basis of independent data as a species distinct from G. tumida, its descendant. Evolutionary change rate during the evolution of G. tumida from G. plesiotumida is shown to be faster than rates within either species. The pattern of variation exhibited by A. afar includes a time interval of more rapid change; this more rapid change is observed post hoc. A bootstrapping model based on post hoc observations reveals the rate in this time interval to be not significantly faster than expected in such post hoc intervals.

Type
Articles
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Connor, E. F. 1986. Time series analysis of the fossil record. Pp. 119147. In: Raup, D. M. and Jablonski, D., eds. Patterns and Processes in the History of Life. Springer-Verlag; Berlin.Google Scholar
Efron, B. 1979. Computers and the theory of statistics: thinking the unthinkable. SIAM Rev. 21:460480.Google Scholar
Efron, B. 1982. The jackknife, the bootstrap, and other resampling plans. SIAM Monograph 38.Google Scholar
Efron, B. 1984. Better bootstrap confidence intervals. Dept. of Statistics, Stanford Univ. Tech. Rept. 226.Google Scholar
Efron, B. and Gong, G. 1983. A leisurely look at the bootstrap, the jackknife, and cross-validation. Amer. Statistician. 37:3648.Google Scholar
Efron, B. and Tibshirani, R. 1986. Bootstrap methods for standard errors, confidence intervals, and other measures of statistical accuracy. Statistical Science. 1:5477.Google Scholar
Felsenstein, J. 1985. Confidence limits on phylogenies: an approach using the bootstrap. Evolution. 39:783791.CrossRefGoogle ScholarPubMed
Gilinsky, N. L. and Bambach, R. K. 1986. The evolutionary bootstrap: a new approach to the study of taxonomic diversity. Paleobiology. 12:251268.Google Scholar
Gingerich, P. D. 1983. Rates of evolution: effects of time and temporal scaling. Science. 222:159161.Google Scholar
Gould, S. J., Young, N. D., and Kasson, B. 1985. The consequences of being different: sinistral coiling in Cerion. Evolution. 39:13641379.Google Scholar
Malmgren, B. A. and Berggren, W. A. 1984. Species formation through punctuated gradualism in planktonic foraminifera. Science. 225:317319.Google Scholar
Malmgren, B. A., Berggren, W. A., and Lohmann, G. P. 1983. Evidence of punctuated gradualism in the Late Neogene Globorotalia tumida lineage of planktonic foraminifera. Paleobiology. 9:377389.Google Scholar
Raup, D. M. and Sepkoski, J. J. Jr. 1984. Periodicity of extinctions in the geologic past. Proc. Natl. Acad. Sci. USA. 81:801805.Google Scholar
Reyment, R. A. 1982. Phenotypic evolution in a Cretaceous foraminifer. Evolution 36:11821199.Google Scholar