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Mendeley readers
Attention Score in Context
| Title |
Female hatchling American kestrels have a larger hippocampus than males: A link with sexual size dimorphism?
|
|---|---|
| Published in |
Behavioural Brain Research, April 2018
|
| DOI | 10.1016/j.bbr.2018.04.037 |
| Pubmed ID | |
| Authors |
Mélanie F Guigueno, Natalie K Karouna-Renier, Paula F P Henry, Jessica A Head, Lisa E Peters, Vince P Palace, Robert J Letcher, Kim J Fernie |
| Abstract |
The brain and underlying cognition may vary adaptively according to an organism's ecology. As with all raptor species, adult American kestrels (Falco sparverius) are sexually dimorphic with females being larger than males. Related to this sexual dimorphism, kestrels display sex differences in hunting and migration, with females ranging more widely than males, suggesting possible sex differences in spatial cognition. However, hippocampus volume, the brain region responsible for spatial cognition, has not been investigated in raptors. Here, we measured hippocampus and telencephalon volumes in American kestrel hatchlings and found no significant difference between left and right hemispheres for either hippocampus or telencephalon. Female hatchlings had a significantly larger hippocampus relative to the telencephalon and brain weight than males (~12% larger), although telencephalon volume relative to brain weight and body size was similar between the sexes. The magnitude of this hippocampal sex difference is similar to that reported between male and female polygynous Microtus voles and subspecies of Zonotrichia sparrows. Future research should determine if this sex difference in relative hippocampus volume of hatchling kestrels persists into adulthood and if similar patterns exist in other raptor species, thus potentially linking sex differences in the brain to sex differences of space use of adults in the wild. |
X Demographics
The data shown below were collected from the profiles of 5 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 Kingdom | 2 | 40% |
| United States | 1 | 20% |
| Canada | 1 | 20% |
| Unknown | 1 | 20% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 2 | 40% |
| Members of the public | 2 | 40% |
| Practitioners (doctors, other healthcare professionals) | 1 | 20% |
Mendeley readers
The data shown below were compiled from readership statistics for 20 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 20 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 4 | 20% |
| Student > Bachelor | 2 | 10% |
| Professor > Associate Professor | 2 | 10% |
| Student > Master | 2 | 10% |
| Professor | 1 | 5% |
| Other | 3 | 15% |
| Unknown | 6 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 3 | 15% |
| Environmental Science | 2 | 10% |
| Social Sciences | 2 | 10% |
| Biochemistry, Genetics and Molecular Biology | 1 | 5% |
| Economics, Econometrics and Finance | 1 | 5% |
| Other | 3 | 15% |
| Unknown | 8 | 40% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. 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 27 May 2018.
All research outputs
#14,605,790
of 25,382,440 outputs
Outputs from Behavioural Brain Research
#2,551
of 4,976 outputs
Outputs of similar age
#169,782
of 339,945 outputs
Outputs of similar age from Behavioural Brain Research
#25
of 79 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. This one is in the 41st percentile – i.e., 41% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,976 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.4. This one is in the 47th percentile – i.e., 47% of its peers scored the same or lower than it.
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 339,945 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 49th percentile – i.e., 49% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 79 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 65% of its contemporaries.