EARLY BURSTS OF BODY SIZE AND SHAPE EVOLUTION ARE RARE IN COMPARATIVE DATA

@article{Harmon2010EARLYBO,
  title={EARLY BURSTS OF BODY SIZE AND SHAPE EVOLUTION ARE RARE IN COMPARATIVE DATA},
  author={Luke J. Harmon and Jonathan B. Losos and T Jonathan Davies and Rosemary G. Gillespie and John L. Gittleman and W Bryan Jennings and Kenneth H Kozak and Mark A. McPeek and Franck Moreno-Roark and Thomas J. Near and Andy Purvis and Robert E. Ricklefs and Dolph Schluter and James A. Schulte II and O. Seehausen and Brian L Sidlauskas and Omar Torres‐Carvajal and Jason T. Weir and Arne O. Mooers},
  journal={Evolution},
  year={2010},
  volume={64}
}
George Gaylord Simpson famously postulated that much of life's diversity originated as adaptive radiations—more or less simultaneous divergences of numerous lines from a single ancestral adaptive type. However, identifying adaptive radiations has proven difficult due to a lack of broad‐scale comparative datasets. Here, we use phylogenetic comparative data on body size and shape in a diversity of animal clades to test a key model of adaptive radiation, in which initially rapid morphological… Expand
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References

SHOWING 1-10 OF 107 REFERENCES
Density-Dependent Cladogenesis in Birds
TLDR
A meta-analysis of the distribution of speciation events through time for 45 clades of birds shows a model of density-dependent speciation in birds, whereby speciation slows as ecological opportunities and geographical space place limits on clade growth. Expand
The pace of modern life II: from rates of contemporary microevolution to pattern and process.
TLDR
The results suggest that macroevolutionary transitions may ultimately arise through microevolution occasionally ‘writ large’ but are perhaps temporally characterized by microev evolution ‘ writes in fits and starts’. Expand
Density-dependent diversification in North American wood warblers
TLDR
This work develops a new conceptual framework that distinguishes density dependence from alternative processes that also produce temporally declining diversification, and demonstrates this approach using a new phylogeny of North American Dendroica wood warblers and suggests that the tempo of wood warbler diversification was mediated by ecological interactions among species. Expand
The Ecological Dynamics of Clade Diversification and Community Assembly
  • M. McPeek
  • Medicine, Biology
  • The American Naturalist
  • 2008
TLDR
The metacommunity model predicts that clades showing decelerating lineage accumulation rates are those that have diversified by ecological modes of speciation, whereasClades showing accelerating lineage accumulation Rates are those That have diversify primarily by modes of Speciation that generate little or no ecological diversification. Expand
COMPARATIVE ANALYSIS OF MORPHOLOGICAL DIVERSITY: DOES DISPARITY ACCUMULATE AT THE SAME RATE IN TWO LINEAGES OF CENTRARCHID FISHES?
TLDR
Investigating whether comparisons of morphological diversity can be used to identify differences in ecological diversity in two sister clades of centrarchid fishes found that Lepomis exhibits 4.4 and 7.4 times more variance than Micropterus on the first two principal components. Expand
The Rate of Morphological Evolution in Mammals from the Standpoint of the Neutral Expectation
  • M. Lynch
  • Biology
  • The American Naturalist
  • 1990
TLDR
The data suggest that, immediately after reproductive isolation, most lineages diverge morphologically at approximately the neutral rate and that this rate declines over evolutionary time, which suggests that the apparently rapid rates of morphological evolution in modern manrelative to other mammals and in mammals relative to other vertebrates are artifacts of temporal scaling. Expand
Evolutionary patterns in early tetrapods. I. Rapid initial diversification followed by decrease in rates of character change
TLDR
The results implicate biological explanations for this pattern of decreasing rates of change over time for Palaeozoic limbed tetrapods, which is difficult to ascribe to sampling biases or methodological biases. Expand
Simultaneous Quaternary Radiations of Three Damselfly Clades across the Holarctic
TLDR
Analysis of phylogenetic analyses of three radiating clades within the northern clade show similar, complex recent histories to produce 17 Nearctic and four Palearctic extant species, suggesting that recent climate fluctuations resulted in radiations driven by similar combinations of speciation processes acting in different lineages. Expand
Conservatism and diversification of plant functional traits: Evolutionary rates versus phylogenetic signal
  • D. Ackerly
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences
  • 2009
TLDR
Independent contrasts are used to estimate rates of evolution for continuous traits under a Brownian motion model of evolution and a unit for the rate of phenotypic diversification is introduced: the felsen, in honor of J. Felsenstein. Expand
Paleontology and the Comparative Method: Ancestral Node Reconstructions versus Observed Node Values
  • P. D. Polly
  • Biology, Medicine
  • The American Naturalist
  • 2001
TLDR
This study uses a fully resolved phylogeny of fossil carnivorans to compare observed ancestral node values with node estimates based on a Brownian motion model of evolution, and finds that evolution of at least some traits is conservative enough for node reconstruction techniques to be useful, despite their large standard errors. Expand
...
1
2
3
4
5
...