Evidence map›Paper›PMID 34383236›Full record

ArticleEcotoxicology (London, England)2021

Geographic variation of mercury in breeding tidal marsh sparrows of the northeastern United States.

Christopher J Sayers, Mackenzie R Roeder, Lindsay M Forrette, Daniel Roche, Gaetan L B Dupont, Sam E Apgar, Alison R Kocek, Alexandra M Cook, W Gregory Shriver, Chris S Elphick and 2 more

Abstract read
PubMed Publisher
In one paragraph

Article in Ecotoxicology (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
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

12 authors.

Christopher J SayersDepartment of Natural Resources & the Environment, Cornell University, Ithaca, NY, 14850, USA. cjs347@cornell.edu.ORCID http://orcid.org/0000-0002-7394-3929
Mackenzie R RoederSchool of Biology and Ecology, University of Maine, Orono, ME, 04469, USA.ORCID http://orcid.org/0000-0002-5169-5397
Lindsay M ForretteSchool of Marine Programs, University of New England, Biddeford, ME, 04005, USA.ORCID http://orcid.org/0000-0002-2187-3105
Daniel RocheDivision of Forestry and Natural Resources, Wildlife and Fisheries Resources Program, West Virginia University, Morgantown, WV, 26501, USA.
Gaetan L B DupontDepartment of Organismic and Evolutionary Biology, University of Massachusetts Amherst, Amherst, MA, 01003, USA.ORCID http://orcid.org/0000-0003-1175-0694
Sam E ApgarDepartment of Ecology & Environmental Biology and Center of Biological Risk, University of Connecticut, Storrs, CT, 06269, USA.
Alison R KocekDepartment of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, NY, 13210, USA.ORCID http://orcid.org/0000-0001-5780-7065
Alexandra M CookDepartment of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, NY, 13210, USA.
W Gregory ShriverDepartment of Entomology and Wildlife Ecology, University of Delaware, Newark, DE, 19716, USA.ORCID http://orcid.org/0000-0003-0911-8462
Chris S ElphickDepartment of Ecology & Environmental Biology and Center of Biological Risk, University of Connecticut, Storrs, CT, 06269, USA.
Brian OlsenSchool of Biology and Ecology, University of Maine, Orono, ME, 04469, USA.ORCID http://orcid.org/0000-0001-5608-2779
David N BonterDepartment of Natural Resources & the Environment, Cornell University, Ithaca, NY, 14850, USA.ORCID http://orcid.org/0000-0003-1768-1941

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Saltmarsh sparrows (Ammospiza caudacuta) and seaside sparrows (A. maritima) are species of conservation concern primarily due to global sea-level rise and habitat degradation. Environmental mercury (Hg) contamination may present additional threats to their reproductive success and survival. To assess site-specific total mercury (THg) exposure and identify environmental correlates of THg detection, we sampled blood from adult male saltmarsh and seaside sparrows at 27 sites between Maine and Virginia, USA. The mean THg concentration (±1 SD) throughout the entire sampling range was 0.531 ± 0.287 µg/g wet weight (ww) for saltmarsh sparrows and 0.442 ± 0.316 µg/g ww for seaside sparrows. Individual THg concentrations ranged from 0.135-1.420 µg/g ww for saltmarsh sparrows and 0.153-1.530 µg/g ww for seaside sparrows. Model averaging from a suite of linear mixed models showed that saltmarsh sparrows averaged 20.1% higher blood THg concentrations than seaside sparrows, potentially due to differences in diet or foraging behavior. We found no evidence for a relationship between sparrow THg concentrations and land cover surrounding sampled marshes or average precipitation-based Hg deposition. Overall, our results suggest considerable, unexplained variation in tidal marsh sparrow blood THg concentrations over their co-occurring breeding ranges.

Indexed as

Environmental PollutantsMercurySparrowsAnimalsEnvironmental MonitoringFeathersMaleNew EnglandWetlandsEnvironmental PollutantsMercuryAmmospiza caudacutaAmmospiza maritima maritimaBioindicatorEstuaryMercurySalt marsh

Identifiers

PMID34383236

What OpenQuestion holds

Textmetadata
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Registered trials

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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.