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Attention Score in Context
| Title |
Phylogenetic relationships within the Alcidae (Charadriiformes: Aves) inferred from total molecular evidence
|
|---|---|
| Published in |
Molecular Biology and Evolution, February 1996
|
| DOI | 10.1093/oxfordjournals.molbev.a025595 |
| Pubmed ID | |
| Authors |
V. L. Friesen, A. J. Baker, J. F. Piatt |
| Abstract |
The Alcidae is a unique assemblage of Northern Hemisphere seabirds that forage by "flying" underwater. Despite obvious affinities among the species, their evolutionary relationships are unclear. We analyzed nucleotide sequences of 1,045 base pairs of the mitochondrial cytochrome b gene and allelic profiles for 37 allozyme loci in all 22 extant species. Trees were constructed on independent and combined data sets using maximum parsimony and distance methods that correct for superimposed changes. Alternative methods of analysis produced only minor differences in relationships that were supported strongly by bootstrapping or standard error tests. Combining sequence and allozyme data into a single analysis provided the greatest number of relationships receiving strong support. Addition of published morphological and ecological data did not improve support for any additional relationship. All analyses grouped species into six distinct lineages: (1) the dovekie (Alle alle) and auks, (2) guillemots, (3) brachyramphine murrelets, (4) synthliboramphine murrelets, (5) true auklets, and (6) the rhinoceros auklet (Cerorhinca monocerata) and puffins. The two murres (genus Uria) were sister taxa, and the black guillemot (Cepphus grylle) was basal to the other guillemots. The Asian subspecies of the marbled murrelet (Brachyramphus marmoratus perdix) was the most divergent brachyramphine murrelet, and two distinct lineages occurred within the synthliboramphine murrelets. Cassin's auklet (Ptychoramphus aleuticus) and the rhinoceros auklet were basal to the other auklets and puffins, respectively, and the Atlantic (Fratercula arctica) and horned (Fratercula corniculata) puffins were sister taxa. Several relationships among tribes, among the dovekie and auks, and among the auklets could not be resolved but resembled "star" phylogenies indicative of adaptive radiations at different depths within the trees. |
Mendeley readers
The data shown below were compiled from readership statistics for 89 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Mexico | 2 | 2% |
| Chile | 1 | 1% |
| Norway | 1 | 1% |
| Portugal | 1 | 1% |
| Sweden | 1 | 1% |
| Argentina | 1 | 1% |
| Spain | 1 | 1% |
| United States | 1 | 1% |
| Unknown | 80 | 90% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 19 | 21% |
| Researcher | 16 | 18% |
| Student > Master | 16 | 18% |
| Professor | 10 | 11% |
| Student > Bachelor | 9 | 10% |
| Other | 17 | 19% |
| Unknown | 2 | 2% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 55 | 62% |
| Environmental Science | 14 | 16% |
| Biochemistry, Genetics and Molecular Biology | 7 | 8% |
| Psychology | 1 | 1% |
| Earth and Planetary Sciences | 1 | 1% |
| Other | 4 | 4% |
| Unknown | 7 | 8% |
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 30 July 2023.
All research outputs
#7,695,695
of 23,410,748 outputs
Outputs from Molecular Biology and Evolution
#3,091
of 5,003 outputs
Outputs of similar age
#17,239
of 80,416 outputs
Outputs of similar age from Molecular Biology and Evolution
#6
of 25 outputs
Altmetric has tracked 23,410,748 research outputs across all sources so far. This one is in the 44th percentile – i.e., 44% of other outputs scored the same or lower than it.
So far Altmetric has tracked 5,003 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 16.4. This one is in the 24th percentile – i.e., 24% 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 80,416 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 19th percentile – i.e., 19% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 25 others from the same source and published within six weeks on either side of this one. This one is in the 16th percentile – i.e., 16% of its contemporaries scored the same or lower than it.