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Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and their eggs

Overview of attention for article published in Environmental Pollution, March 2016
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About this Attention Score

  • Above-average Attention Score compared to outputs of the same age (59th percentile)
  • Good Attention Score compared to outputs of the same age and source (71st percentile)

Mentioned by

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4 tweeters

Citations

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59 Dimensions

Readers on

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114 Mendeley
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Title
Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and their eggs
Published in
Environmental Pollution, March 2016
DOI 10.1016/j.envpol.2015.12.016
Pubmed ID
Authors

Joshua T. Ackerman, Collin A. Eagles-Smith, Mark P. Herzog, C. Alex Hartman

Abstract

We conducted a detailed assessment of the maternal transfer of mercury and selenium to eggs in three bird species (n = 107 parents and n = 339 eggs), and developed predictive equations linking contaminant concentrations in eggs to those in six tissues of the mother (blood, muscle, liver, kidney, breast feathers, and head feathers). Mercury concentrations in eggs were positively correlated with mercury concentrations in each of the mother's internal tissues (R(2) ≥ 0.95), but generally not with feathers. For each species, the proportion of mercury transferred to eggs decreased as mercury concentrations in the mother increased. At the same maternal mercury concentration, the proportion of mercury transferred to eggs differed among species, such that Forster's tern (Sterna forsteri) and black-necked stilt (Himantopus mexicanus) females transferred more methylmercury to their eggs than American avocet (Recurvirostra americana) females. Selenium concentrations in eggs also were correlated with selenium concentrations in the mother's liver (R(2) = 0.87). Furthermore, mercury and selenium concentrations in tern eggs were positively correlated with those in the father (R(2) = 0.84). Incubating male terns had 21% higher mercury concentrations in blood compared to incubating females at the same egg mercury concentration. We provide equations to predict contaminant concentrations in eggs from each of the commonly sampled bird tissues.

Twitter Demographics

The data shown below were collected from the profiles of 4 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 114 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 <1%
United States 1 <1%
Unknown 112 98%

Demographic breakdown

Readers by professional status Count As %
Student > Master 26 23%
Researcher 19 17%
Student > Bachelor 16 14%
Student > Ph. D. Student 13 11%
Other 6 5%
Other 14 12%
Unknown 20 18%
Readers by discipline Count As %
Agricultural and Biological Sciences 36 32%
Environmental Science 30 26%
Chemistry 7 6%
Pharmacology, Toxicology and Pharmaceutical Science 3 3%
Biochemistry, Genetics and Molecular Biology 3 3%
Other 9 8%
Unknown 26 23%

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 18 April 2016.
All research outputs
#8,746,723
of 15,985,155 outputs
Outputs from Environmental Pollution
#2,908
of 7,434 outputs
Outputs of similar age
#149,592
of 371,813 outputs
Outputs of similar age from Environmental Pollution
#39
of 135 outputs
Altmetric has tracked 15,985,155 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 7,434 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.9. This one has gotten more attention than average, scoring higher than 60% 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 371,813 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 59% of its contemporaries.
We're also able to compare this research output to 135 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 71% of its contemporaries.