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Data from: Testing for unequal rates of morphological diversification in the absence of a detailed phylogeny: a case study from characiform fishes

When using this data, please cite the original article:

Sidlauskas B (2007) Testing for unequal rates of morphological diversification in the absence of a detailed phylogeny: a case study from characiform fishes. Evolution 61: 299–316. doi:10.1111/j.1558-5646.2007.00022.x

Additionally, please cite the Dryad data package:

Sidlauskas B (2007) Data from: Testing for unequal rates of morphological diversification in the absence of a detailed phylogeny: a case study from characiform fishes. Dryad Digital Repository. doi:10.5061/dryad.20
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Dryad Package Identifier doi:10.5061/dryad.20    389 views  
Abstract This study develops the random phylogenies rate test (RAPRATE), a likelihood method that simulates morphological evolution along randomly generated phylogenies, and uses it to determine whether a considerable difference in morphological diversity between two sister clades of South American fishes should be taken as evidence of differing rates of morphological change or lineage turnover. Despite identical ages of origin, similar species richness, and sympatric geographic distributions, the morphological and ecological diversity of the superfamily Anostomoidea exceeds that of the Curimatoidea. The test shows with 90% confidence (using variance among species as the measure of morphological diversity) or 99% confidence (using volume of occupied morphospace) that the rate of morphological change per unit time in the Anostomoidea likely exceeded that of the Curimatoidea. Variation in the rate of lineage turnover (speciation and extinction rates) is not found to affect greatly the morphological diversity of simulated clades and is not a likely explanation of the observed difference in morphological diversity in this case study. Though a 17% or greater delay in the onset of diversification in the Curimatoidea remains a possible alternative explanation of unequal morphological diversification, further simulations suggest that two clades drawn from the possible treespace of the Anostomoidea and Curimatoidea will rarely differ so greatly in the onset of diversification. Several uniquely derived morphological and ecological features of the Anostomoidea and Curimatoidea may have accelerated or decelerated their rate of morphological change, including a marked lengthening of the quadrate that may have relaxed structural constraints on the evolution of the anostomoid jaw.
Keywords tempo, disparity, adaptive radiation, Brownian evolution, evolutionary rates, mode, freshwater fishes,
Date Deposited 2007-12-17T20:28:42Z
Scientific Names Curimatoidea
Anostomoidea
Spatial Coverage South America
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Morphospace Specimens    128 views   50 downloads View File Details
Species, lot numbers and numbers of specimens used to create the morphospace. Institutional abbreviations are as listed at http://www.asih.org/files/codons.pdf
Download: Evo_22_Table S1.doc ( 454.6Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  


Relative Warps    93 views   39 downloads View File Details
Results of a relative warps analysis done in tpsRelw using the data in http://hdl.handle.net/10255/dryad.57. The data in the Excel spreadsheet were used to prepare the morphospace figures that appear in Sidlauskas 2007. The order of taxa in the spreadsheet should match the order of taxa in the TPS file.
Download: Sidlauskas 2007 Data.xls ( 131.5Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  


Landmark Consensuses    81 views   33 downloads View File Details
Raw 2D coordinate positions representing the geometry of anatomical landmarks taken from the skulls of 151 fish species. This is a raw text file. Each entry includes the line LM=21 (indicating that there are 21 landmarks per species), a list of the 21 landmarks (X and Y coordinates), and an ID line that includes the name of the species to which the 21 landmarks _above_ the ID belong. The file is intended to be analyzed with the tpsRelw program by F. James Rohlf, which is available at http://life.bio.sunysb.edu/morph/
Download: Sidlauskas 2007 Landmark Consensuses.tps ( 155.6Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  


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