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Egg‐laying sequence influences egg mercury concentrations and egg size in three bird species: Implications for contaminant monitoring programs

Overview of attention for article published in Environmental Toxicology & Chemistry, March 2016
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Title
Egg‐laying sequence influences egg mercury concentrations and egg size in three bird species: Implications for contaminant monitoring programs
Published in
Environmental Toxicology & Chemistry, March 2016
DOI 10.1002/etc.3291
Pubmed ID
Authors

Joshua T Ackerman, Collin A Eagles-Smith, Mark P Herzog, Julie L Yee, C Alex Hartman

Abstract

Bird eggs are commonly used in contaminant monitoring programs and toxicological risk assessments, but intra-clutch variation and sampling methodology could influence interpretability. We examined the influence of egg laying sequence on egg mercury concentrations and burdens in American avocets, black-necked stilts, and Forster's terns. The average decline in mercury concentrations between the first and last egg laid was 33% for stilts, 22% for terns, and 11% for avocets, and most of this decline occurred between the first and second eggs laid (24% for stilts, 18% for terns, and 9% for avocets). Trends in egg size with egg laying order were inconsistent among species and overall differences in egg volume, mass, length, and width were <3%. We summarized the literature and, among 17 species studied, mercury concentrations generally declined by 16% between the first and second eggs laid. Despite the strong effect of egg laying sequence, most of the variance in egg mercury concentrations still occurred among clutches (75%-91%) rather than within clutches (9%-25%). Using simulations, we determined that to accurately estimate a population's mean egg mercury concentration using only a single random egg from a subset of nests, it would require sampling >60 nests to represent a large population (10% accuracy) or ≥14 nests to represent a small colony that contained <100 nests (20% accuracy). This article is protected by copyright. All rights reserved.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 28 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 4%
Unknown 27 96%

Demographic breakdown

Readers by professional status Count As %
Researcher 9 32%
Student > Master 7 25%
Student > Ph. D. Student 4 14%
Student > Bachelor 4 14%
Professor 2 7%
Other 1 4%
Unknown 1 4%
Readers by discipline Count As %
Agricultural and Biological Sciences 10 36%
Environmental Science 8 29%
Mathematics 1 4%
Nursing and Health Professions 1 4%
Medicine and Dentistry 1 4%
Other 2 7%
Unknown 5 18%
Attention Score in Context

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 12 November 2015.
All research outputs
#14,915,476
of 25,374,917 outputs
Outputs from Environmental Toxicology & Chemistry
#3,635
of 5,612 outputs
Outputs of similar age
#153,185
of 314,268 outputs
Outputs of similar age from Environmental Toxicology & Chemistry
#32
of 96 outputs
Altmetric has tracked 25,374,917 research outputs across all sources so far. This one is in the 40th percentile – i.e., 40% of other outputs scored the same or lower than it.
So far Altmetric has tracked 5,612 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.9. This one is in the 34th percentile – i.e., 34% 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 314,268 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 50% of its contemporaries.
We're also able to compare this research output to 96 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 66% of its contemporaries.