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Blood Parasites in Owls with Conservation Implications for the Spotted Owl (Strix occidentalis)

Overview of attention for article published in PLOS ONE, May 2008
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (84th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (62nd percentile)

Mentioned by

1 blog
1 Wikipedia page


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Readers on

168 Mendeley
1 Connotea
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Blood Parasites in Owls with Conservation Implications for the Spotted Owl (Strix occidentalis)
Published in
PLOS ONE, May 2008
DOI 10.1371/journal.pone.0002304
Pubmed ID

Heather D. Ishak, John P. Dumbacher, Nancy L. Anderson, John J. Keane, Gediminas Valkiūnas, Susan M. Haig, Lisa A. Tell, Ravinder N. M. Sehgal


The three subspecies of Spotted Owl (Northern, Strix occidentalis caurina; California, S. o. occidentalis; and Mexican, S. o. lucida) are all threatened by habitat loss and range expansion of the Barred Owl (S. varia). An unaddressed threat is whether Barred Owls could be a source of novel strains of disease such as avian malaria (Plasmodium spp.) or other blood parasites potentially harmful for Spotted Owls. Although Barred Owls commonly harbor Plasmodium infections, these parasites have not been documented in the Spotted Owl. We screened 111 Spotted Owls, 44 Barred Owls, and 387 owls of nine other species for haemosporidian parasites (Leucocytozoon, Plasmodium, and Haemoproteus spp.). California Spotted Owls had the greatest number of simultaneous multi-species infections (44%). Additionally, sequencing results revealed that the Northern and California Spotted Owl subspecies together had the highest number of Leucocytozoon parasite lineages (n = 17) and unique lineages (n = 12). This high level of sequence diversity is significant because only one Leucocytozoon species (L. danilewskyi) has been accepted as valid among all owls, suggesting that L. danilewskyi is a cryptic species. Furthermore, a Plasmodium parasite was documented in a Northern Spotted Owl for the first time. West Coast Barred Owls had a lower prevalence of infection (15%) when compared to sympatric Spotted Owls (S. o. caurina 52%, S. o. occidentalis 79%) and Barred Owls from the historic range (61%). Consequently, Barred Owls on the West Coast may have a competitive advantage over the potentially immune compromised Spotted Owls.

Mendeley readers

The data shown below were compiled from readership statistics for 168 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 7 4%
Colombia 1 <1%
Pakistan 1 <1%
Lithuania 1 <1%
Brazil 1 <1%
Romania 1 <1%
United Kingdom 1 <1%
Unknown 155 92%

Demographic breakdown

Readers by professional status Count As %
Researcher 40 24%
Student > Ph. D. Student 23 14%
Student > Master 23 14%
Student > Bachelor 21 13%
Student > Postgraduate 13 8%
Other 36 21%
Unknown 12 7%
Readers by discipline Count As %
Agricultural and Biological Sciences 95 57%
Environmental Science 13 8%
Medicine and Dentistry 9 5%
Biochemistry, Genetics and Molecular Biology 8 5%
Veterinary Science and Veterinary Medicine 8 5%
Other 20 12%
Unknown 15 9%

Attention Score in Context

This research output has an Altmetric Attention Score of 9. 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 24 December 2019.
All research outputs
of 22,653,392 outputs
Outputs from PLOS ONE
of 193,422 outputs
Outputs of similar age
of 83,077 outputs
Outputs of similar age from PLOS ONE
of 366 outputs
Altmetric has tracked 22,653,392 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 193,422 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 15.0. This one has done well, scoring higher than 76% 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 83,077 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 84% of its contemporaries.
We're also able to compare this research output to 366 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 62% of its contemporaries.