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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Cope’s rule in the evolution of marine animals
|
|---|---|
| Published in |
Science, February 2015
|
| DOI | 10.1126/science.1260065 |
| Pubmed ID | |
| Authors |
Noel A Heim, Matthew L Knope, Ellen K Schaal, Steve C Wang, Jonathan L Payne |
| Abstract |
Cope's rule proposes that animal lineages evolve toward larger body size over time. To test this hypothesis across all marine animals, we compiled a data set of body sizes for 17,208 genera of marine animals spanning the past 542 million years. Mean biovolume across genera has increased by a factor of 150 since the Cambrian, whereas minimum biovolume has decreased by less than a factor of 10, and maximum biovolume has increased by more than a factor of 100,000. Neutral drift from a small initial value cannot explain this pattern. Instead, most of the size increase reflects differential diversification across classes, indicating that the pattern does not reflect a simple scaling-up of widespread and persistent selection for larger size within populations. |
X Demographics
The data shown below were collected from the profiles of 110 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 33 | 30% |
| United Kingdom | 14 | 13% |
| Australia | 3 | 3% |
| Indonesia | 3 | 3% |
| Spain | 2 | 2% |
| Mexico | 1 | <1% |
| Japan | 1 | <1% |
| Hong Kong | 1 | <1% |
| Puerto Rico | 1 | <1% |
| Other | 9 | 8% |
| Unknown | 42 | 38% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 57 | 52% |
| Scientists | 46 | 42% |
| Science communicators (journalists, bloggers, editors) | 6 | 5% |
| Practitioners (doctors, other healthcare professionals) | 1 | <1% |
Mendeley readers
The data shown below were compiled from readership statistics for 321 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 6 | 2% |
| Japan | 4 | 1% |
| Germany | 3 | <1% |
| United Kingdom | 3 | <1% |
| France | 3 | <1% |
| Brazil | 2 | <1% |
| Switzerland | 2 | <1% |
| Argentina | 2 | <1% |
| Romania | 1 | <1% |
| Other | 2 | <1% |
| Unknown | 293 | 91% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 64 | 20% |
| Student > Ph. D. Student | 57 | 18% |
| Student > Master | 36 | 11% |
| Student > Bachelor | 34 | 11% |
| Professor > Associate Professor | 27 | 8% |
| Other | 70 | 22% |
| Unknown | 33 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 149 | 46% |
| Earth and Planetary Sciences | 72 | 22% |
| Environmental Science | 28 | 9% |
| Biochemistry, Genetics and Molecular Biology | 12 | 4% |
| Medicine and Dentistry | 4 | 1% |
| Other | 18 | 6% |
| Unknown | 38 | 12% |
Attention Score in Context
This research output has an Altmetric Attention Score of 663. 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 22 January 2024.
All research outputs
#32,864
of 25,736,439 outputs
Outputs from Science
#1,408
of 83,267 outputs
Outputs of similar age
#278
of 269,945 outputs
Outputs of similar age from Science
#25
of 1,363 outputs
Altmetric has tracked 25,736,439 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 83,267 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 65.9. This one has done particularly well, scoring higher than 98% 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 269,945 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 1,363 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 98% of its contemporaries.