Evidence map›Paper›PMID 31095834›Full record

ArticleGlobal change biology2019

Response of cyanobacteria and phytoplankton abundance to warming, extreme rainfall events and nutrient enrichment.

Jessica Richardson, Heidrun Feuchtmayr, Claire Miller, Peter D Hunter, Stephen C Maberly, Laurence Carvalho

Open access · hybridAbstract read
In one paragraph

Article in Global change biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
9.4field-weighted citation impact, top 1% 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

20 citing papers in PubMed, 144 citations in OpenAlex.

  1. Article
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  7. Abrupt changes in algal biomass of thousands of US lakes are related to climate and are more likely in low-disturbance watersheds.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  11. The combined effects of filter-feeding bivalves (Frontiers in plant science · 2023
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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

6 authors at 3 institutions in 1 country.

Jessica RichardsonCentre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK.ORCID 0000-0002-3723-2361
Heidrun FeuchtmayrCentre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK.ORCID 0000-0002-2028-4843
Claire MillerSchool of Mathematics and Statistics, University of Glasgow, Glasgow, UK.
Peter D HunterBiological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, UK.
Stephen C MaberlyCentre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK.
Laurence CarvalhoCentre for Ecology & Hydrology, Penicuik, UK.
UK Centre for Ecology & Hydrology · GBUniversity of Stirling · GBUniversity of Glasgow · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyanobacterial blooms are an increasing threat to water quality and global water security caused by the nutrient enrichment of freshwaters. There is also a broad consensus that blooms are increasing with global warming, but the impacts of other concomitant environmental changes, such as an increase in extreme rainfall events, may affect this response. One of the potential effects of high rainfall events on phytoplankton communities is greater loss of biomass through hydraulic flushing. Here we used a shallow lake mesocosm experiment to test the combined effects of: warming (ambient vs. +4°C increase), high rainfall (flushing) events (no events vs. seasonal events) and nutrient loading (eutrophic vs. hypertrophic) on total phytoplankton chlorophyll-a and cyanobacterial abundance and composition. Our hypotheses were that: (a) total phytoplankton and cyanobacterial abundance would be higher in heated mesocosms; (b) the stimulatory effects of warming on cyanobacterial abundance would be enhanced in higher nutrient mesocosms, resulting in a synergistic interaction; (c) the recovery of biomass from flushing induced losses would be quicker in heated and nutrient-enriched treatments, and during the growing season. The results supported the first and, in part, the third hypotheses: total phytoplankton and cyanobacterial abundance increased in heated mesocosms with an increase in common bloom-forming taxa-Microcystis spp. and Dolichospermum spp. Recovery from flushing was slowest in the winter, but unaffected by warming or higher nutrient loading. Contrary to the second hypothesis, an antagonistic interaction between warming and nutrient enrichment was detected for both cyanobacteria and chlorophyll-a demonstrating that ecological surprises can occur, dependent on the environmental context. While this study highlights the clear need to mitigate against global warming, oversimplification of global change effects on cyanobacteria should be avoided; stressor gradients and seasonal effects should be considered as important factors shaping the response.

Indexed as

CyanobacteriaPhytoplanktonEutrophicationLakesNutrientsNutrientsclimate changeexperimentharmful algal bloomlakemesocosmMicrocystismultiple stressors

Identifiers

PMID31095834
PMCPMC6852574
OpenAlexW2945862717

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.