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Phylogenetically patterned speciation rates and extinction risks change the loss of evolutionary history during extinctions

2000; Royal Society; Volume: 267; Issue: 1443 Linguagem: Inglês

10.1098/rspb.2000.1046

1471-2954

Stephen B. Heard, Arne Ø. Mooers,

Evolution and Genetic Dynamics

Restricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article 2000Phylogenetically patterned speciation rates and extinction risks change the loss of evolutionary history during extinctionsProc. R. Soc. Lond. B.267613–620http://doi.org/10.1098/rspb.2000.1046SectionRestricted accessPhylogenetically patterned speciation rates and extinction risks change the loss of evolutionary history during extinctions Published:22 March 2000https://doi.org/10.1098/rspb.2000.1046AbstractIf we are to plan conservation strategies that minimize the loss of evolutionary history through human–caused extinctions, we must understand how this loss is related to phylogenetic patterns in current extinction risks and past speciation rates. Nee & May (1997, Science 278, 692–694) showed that for a randomly evolving clade (i) a single round of random extinction removed relatively little evolutionary history, and (ii) extinction management (choosing which taxa to sacrifice) offered only marginal improvement. However, both speciation rates and extinction risks vary across lineages within real clades. We simulated evolutionary trees with phylogenetically patterned speciation rates and extinction risks (closely related lineages having similar rates and risks) and then subjected them to several biologically informed models of extinction. Increasing speciation rate variation increases the extinction–management pay–off. When extinction risks vary among lineages but are uncorrelated with speciation rates, extinction removes more history (compared with random trees), but the difference is small. When extinction risks vary and are correlated with speciation rates, history loss can dramatically increase (negative correlation) or decrease (positive correlation) with speciation rate variation. The loss of evolutionary history via human–caused extinctions may therefore be more severe, yet more manageable, than first suggested. Previous ArticleNext Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsCited byVoskamp A, Hof C, Biber M, Böhning-Gaese K, Hickler T, Niamir A, Willis S and Fritz S (2022) Projected climate change impacts on the phylogenetic diversity of the world's terrestrial birds: more than species numbers, Proceedings of the Royal Society B: Biological Sciences, 289:1979, Online publication date: 27-Jul-2022. Tims A and Alroy J (2021) Phylogeny‐based conservation priorities for Australian freshwater fishes, Conservation Biology, 10.1111/cobi.13811, 36:2, Online publication date: 1-Apr-2022. 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