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Homage to Linnaeus: How many parasites? How many hosts?

Overview of attention for article published in Proceedings of the National Academy of Sciences of the United States of America, August 2008
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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 (94th percentile)

Mentioned by

news
3 news outlets
blogs
6 blogs
policy
1 policy source
twitter
42 tweeters
wikipedia
4 Wikipedia pages
video
1 video uploader

Citations

dimensions_citation
451 Dimensions

Readers on

mendeley
675 Mendeley
citeulike
1 CiteULike
connotea
3 Connotea
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Title
Homage to Linnaeus: How many parasites? How many hosts?
Published in
Proceedings of the National Academy of Sciences of the United States of America, August 2008
DOI 10.1073/pnas.0803232105
Pubmed ID
Authors

Andy Dobson, Kevin D. Lafferty, Armand M. Kuris, Ryan F. Hechinger, Walter Jetz

Abstract

Estimates of the total number of species that inhabit the Earth have increased significantly since Linnaeus's initial catalog of 20,000 species. The best recent estimates suggest that there are approximately 6 million species. More emphasis has been placed on counts of free-living species than on parasitic species. We rectify this by quantifying the numbers and proportion of parasitic species. We estimate that there are between 75,000 and 300,000 helminth species parasitizing the vertebrates. We have no credible way of estimating how many parasitic protozoa, fungi, bacteria, and viruses exist. We estimate that between 3% and 5% of parasitic helminths are threatened with extinction in the next 50 to 100 years. Because patterns of parasite diversity do not clearly map onto patterns of host diversity, we can make very little prediction about geographical patterns of threat to parasites. If the threats reflect those experienced by avian hosts, then we expect climate change to be a major threat to the relatively small proportion of parasite diversity that lives in the polar and temperate regions, whereas habitat destruction will be the major threat to tropical parasite diversity. Recent studies of food webs suggest that approximately 75% of the links in food webs involve a parasitic species; these links are vital for regulation of host abundance and potentially for reducing the impact of toxic pollutants. This implies that parasite extinctions may have unforeseen costs that impact the health and abundance of a large number of free-living species.

Twitter Demographics

The data shown below were collected from the profiles of 42 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 675 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 6 <1%
Germany 5 <1%
Brazil 5 <1%
Portugal 2 <1%
Australia 2 <1%
Norway 2 <1%
Switzerland 2 <1%
Spain 2 <1%
France 1 <1%
Other 9 1%
Unknown 639 95%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 120 18%
Researcher 77 11%
Student > Master 75 11%
Student > Bachelor 58 9%
Professor 29 4%
Other 82 12%
Unknown 234 35%
Readers by discipline Count As %
Agricultural and Biological Sciences 283 42%
Environmental Science 56 8%
Biochemistry, Genetics and Molecular Biology 22 3%
Immunology and Microbiology 12 2%
Veterinary Science and Veterinary Medicine 11 2%
Other 31 5%
Unknown 260 39%

Attention Score in Context

This research output has an Altmetric Attention Score of 96. 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 03 April 2022.
All research outputs
#343,784
of 21,782,457 outputs
Outputs from Proceedings of the National Academy of Sciences of the United States of America
#6,676
of 96,571 outputs
Outputs of similar age
#2,265
of 251,675 outputs
Outputs of similar age from Proceedings of the National Academy of Sciences of the United States of America
#46
of 805 outputs
Altmetric has tracked 21,782,457 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 98th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 96,571 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 35.7. This one has done particularly well, scoring higher than 93% 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 251,675 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 805 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 94% of its contemporaries.