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Science Advances

A new time tree reveals Earth history’s imprint on the evolution of modern birds

Overview of attention for article published in Science Advances, December 2015
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (95th percentile)

Mentioned by

news
34 news outlets
blogs
8 blogs
twitter
513 X users
facebook
10 Facebook pages
wikipedia
61 Wikipedia pages
googleplus
20 Google+ users
reddit
3 Redditors
video
1 YouTube creator

Citations

dimensions_citation
304 Dimensions

Readers on

mendeley
440 Mendeley
Title
A new time tree reveals Earth history’s imprint on the evolution of modern birds
Published in
Science Advances, December 2015
DOI 10.1126/sciadv.1501005
Pubmed ID
Authors

Santiago Claramunt, Joel Cracraft

Abstract

Determining the timing of diversification of modern birds has been difficult. We combined DNA sequences of clock-like genes for most avian families with 130 fossil birds to generate a new time tree for Neornithes and investigated their biogeographic and diversification dynamics. We found that the most recent common ancestor of modern birds inhabited South America around 95 million years ago, but it was not until the Cretaceous-Paleogene transition (66 million years ago) that Neornithes began to diversify rapidly around the world. Birds used two main dispersion routes: reaching the Old World through North America, and reaching Australia and Zealandia through Antarctica. Net diversification rates increased during periods of global cooling, suggesting that fragmentation of tropical biomes stimulated speciation. Thus, we found pervasive evidence that avian evolution has been influenced by plate tectonics and environmental change, two basic features of Earth's dynamics.

X Demographics

X Demographics

The data shown below were collected from the profiles of 513 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 440 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 5 1%
Brazil 3 <1%
Germany 2 <1%
Canada 2 <1%
Czechia 2 <1%
Portugal 1 <1%
United Kingdom 1 <1%
Norway 1 <1%
Argentina 1 <1%
Other 3 <1%
Unknown 419 95%

Demographic breakdown

Readers by professional status Count As %
Researcher 76 17%
Student > Ph. D. Student 74 17%
Student > Bachelor 59 13%
Student > Master 57 13%
Student > Doctoral Student 22 5%
Other 77 18%
Unknown 75 17%
Readers by discipline Count As %
Agricultural and Biological Sciences 218 50%
Biochemistry, Genetics and Molecular Biology 38 9%
Environmental Science 30 7%
Earth and Planetary Sciences 30 7%
Nursing and Health Professions 4 <1%
Other 37 8%
Unknown 83 19%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 584. 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 28 February 2024.
All research outputs
#40,642
of 25,746,891 outputs
Outputs from Science Advances
#535
of 12,503 outputs
Outputs of similar age
#444
of 397,456 outputs
Outputs of similar age from Science Advances
#4
of 82 outputs
Altmetric has tracked 25,746,891 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 12,503 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 119.8. This one has done particularly well, scoring higher than 95% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 397,456 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 82 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.