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Heterochrony repolarized: a phylogenetic analysis of developmental timing in plethodontid salamanders

Overview of attention for article published in EvoDevo, January 2014
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (82nd percentile)

Mentioned by

10 tweeters


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63 Mendeley
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Heterochrony repolarized: a phylogenetic analysis of developmental timing in plethodontid salamanders
Published in
EvoDevo, January 2014
DOI 10.1186/2041-9139-5-27
Pubmed ID

Ronald M Bonett, Michael A Steffen, Grant A Robison


Disentangling evolutionary shifts in developmental timing (heterochony) is dependent upon accurate estimates of ancestral patterns. However, many classic assessments of heterochronic patterns predate robust phylogenetic hypotheses and methods for trait reconstruction, and therefore may have been polarized with untested 'primitive' conditions. Here we revisit the heterochronic modes of development that underlie the evolution of metamorphosis, maturation, and paedomorphosis in plethodontid salamanders. We focus on the tribe Spelerpini, which is a diverse clade that exhibits tremendous variation in timing of metamorphosis and maturation, as well as multiple independent instances of larval form paedomorphosis. Based on morphology and biogeography, early investigators concluded that the most recent common ancestors of plethodontids, and also spelerpines, were large salamanders, with very long larval periods and late maturation times. This prevailing assumption influenced subsequent heterochronic assessments, which concluded that most modern spelerpines (with shorter larval periods) were derived through multiple independent accelerations in larval development. It was also concluded that most occurrences of larval form paedomorphosis in this clade resulted from progenesis (acceleration of gonadal development relative to metamorphosis).

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 63 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 2 3%
Chile 1 2%
Colombia 1 2%
Sweden 1 2%
Unknown 58 92%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 13 21%
Student > Master 13 21%
Researcher 9 14%
Professor 7 11%
Student > Bachelor 5 8%
Other 8 13%
Unknown 8 13%
Readers by discipline Count As %
Agricultural and Biological Sciences 34 54%
Biochemistry, Genetics and Molecular Biology 9 14%
Environmental Science 4 6%
Neuroscience 3 5%
Earth and Planetary Sciences 1 2%
Other 2 3%
Unknown 10 16%

Attention Score in Context

This research output has an Altmetric Attention Score of 8. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 January 2016.
All research outputs
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Outputs from EvoDevo
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Outputs of similar age
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Outputs of similar age from EvoDevo
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Altmetric has tracked 21,338,015 research outputs across all sources so far. Compared to these this one has done well and is in the 82nd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 312 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.4. This one has gotten more attention than average, scoring higher than 64% of its peers.
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