Evidence map›Paper›PMID 33774887›Full record

ArticleGlobal change biology2021

Increasingly severe cyanobacterial blooms and deep water hypoxia coincide with warming water temperatures in reservoirs.

Nathan J Smucker, Jake J Beaulieu, Christopher T Nietch, Jade L Young

Abstract read
In one paragraph

Article in Global change biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
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  8. Review
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  11. Article
  12. HABS-BLOCKS© InhibitedMicroorganisms · 2025
    Article
  13. Article
  14. Article
  15. Geosmin Events Associated withMicroorganisms · 2024
    Article
  16. Expert insights on managing harmful algal blooms.Frontiers in freshwater science · 2024
    Article
  17. Article
  18. Article
  19. Article
  20. Article
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

4 authors.

Nathan J SmuckerUnited States Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Cincinnati, OH, USA.ORCID https://orcid.org/0000-0002-7079-5190
Jake J BeaulieuUnited States Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Cincinnati, OH, USA.ORCID https://orcid.org/0000-0001-5750-0354
Christopher T NietchUnited States Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Cincinnati, OH, USA.ORCID https://orcid.org/0000-0002-6265-7070
Jade L YoungUnited States Army Corps of Engineers, Louisville District Water Quality, Louisville, KY, USA.

Funding

Intramural EPA EPA999999United States Army Corps of EngineersU.S. Environmental Protection Agency
6 · The paper itself

Abstract

Cyanobacterial blooms are expected to intensify and become more widespread with climate change and sustained nutrient pollution, subsequently increasing threats to lentic ecosystems, water quality, and human health. However, little is known about their rates of change because long-term monitoring data are rare, except for some well-studied individual lakes, which typically are large and broadly dispersed geographically. Using monitoring data spanning 1987-2018 for 20 temperate reservoirs located in the USA, we found that cyanobacteria cell densities mostly posed low-to-moderate human health risks until 2003-2005, after which cell densities rapidly increased. Increases were greatest in reservoirs with extensive agriculture in their watersheds, but even those with mostly forested watersheds experienced increases. Since 2009, cell densities posing high human health risks have become frequent with 75% of yearly observations exceeding 100,000 cells ml

Indexed as

CyanobacteriaEutrophicationEcosystemHumansHypoxiaLakesTemperatureclimate changeharmful algaehuman healthlakesnitrogennutrientsoxygenseasonality

Identifiers

PMID33774887
PMCPMC8168688

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.