Evidence map›Paper›PMID 21858513›Full record

ArticleEcotoxicology (London, England)2011

Spatial gradients of methylmercury for breeding common loons in the Laurentian Great Lakes region.

David C Evers, Kathryn A Williams, Michael W Meyer, Anton M Scheuhammer, Nina Schoch, Andrew T Gilbert, Lori Siegel, Robert J Taylor, Robert Poppenga, Christopher R Perkins

Abstract read
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In one paragraph

Article in Ecotoxicology (London, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.3field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 52 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 6 institutions in 2 countries.

David C EversBiodiversity Research Institute, Gorham, ME 04038, USA. david.evers@briloon.org
Kathryn A Williams
Michael W Meyer
Anton M Scheuhammer
Nina Schoch
Andrew T Gilbert
Lori Siegel
Robert J Taylor
Robert Poppenga
Christopher R Perkins
Biodiversity Research Institute · USEnvironment and Climate Change Canada · CAMitchell Institute · USUniversity of California, Davis · USUniversity of Connecticut · USWisconsin Department of Natural Resources · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Much of the Laurentian Great Lakes region is a mercury-sensitive landscape, in which atmospheric deposition and waterborne sources of mercury (Hg) have led to high concentrations of bioavailable methylmercury (MeHg) in predatory fish and piscivorous wildlife. Efforts since the early 1990s have established the common loon (Gavia immer) as the primary avian indicator for evaluating the exposure and effects of MeHg in North America. A regional Hg dataset was compiled from multiple loon tissue types and yellow perch (Perca flavescens), a preferred prey fish species for loons. Hg exposure in loons and perch was modeled to develop male and female loon units (MLU and FLU, respectively), standardized metrics that represent the estimated blood Hg exposure of a male or female loon for a given loon territory or water body. Using this common endpoint approach to assess loon Hg exposure, the authors demonstrate spatial trends in biotic Hg concentrations, examine MeHg availability in aquatic ecosystems of the Great Lakes region in relation to landscape-level characteristics, and identify areas with potentially significant adverse reproductive impacts to loons and other avian piscivores. Based on 8,101 MLUs, seven biological Hg hotspots were identified in the Great Lakes region. Policy-relevant applications are presented.

Indexed as

BirdsBreedingAnimalsEnvironmental ExposureEnvironmental MonitoringFemaleGreat Lakes RegionLakesMaleMethylmercury CompoundsMichiganMinnesotaNew YorkOntarioPerchesReproductionMethylmercury CompoundsWater Pollutants, Chemical

Identifiers

PMID21858513
OpenAlexW2019137180

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.