Evidence map›Paper›PMID 27733762›Full record

ArticleScientific reports2016

Chytrid parasitism facilitates trophic transfer between bloom-forming cyanobacteria and zooplankton (Daphnia).

Ramsy Agha, Manja Saebelfeld, Christin Manthey, Thomas Rohrlack, Justyna Wolinska

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
6.2field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 88 citations in OpenAlex.

  1. Article
  2. Fungal parasites infecting NNature communications · 2026
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  14. Article
  15. Effects of water movement and temperature onFrontiers in microbiology · 2023
    Article
  16. Chytrids enhanceFreshwater biology · 2023
    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

5 authors at 2 institutions in 2 countries.

Ramsy AghaLeibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany.
Manja SaebelfeldLeibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany.
Christin MantheyLeibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany.
Thomas RohrlackNorwegian University of Life Sciences (NMBU), Department of Environmental Sciences, Ås, Norway.
Justyna WolinskaLeibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany.
Leibniz Institute of Freshwater Ecology and Inland Fisheries · DENorwegian University of Life Sciences · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parasites are rarely included in food web studies, although they can strongly alter trophic interactions. In aquatic ecosystems, poorly grazed cyanobacteria often dominate phytoplankton communities, leading to the decoupling of primary and secondary production. Here, we addressed the interface between predator-prey and host-parasite interactions by conducting a life-table experiment, in which four Daphnia galeata genotypes were maintained on quantitatively comparable diets consisting of healthy cyanobacteria or cyanobacteria infected by a fungal (chytrid) parasite. In four out of five fitness parameters, at least one Daphnia genotype performed better on parasitised cyanobacteria than in the absence of infection. Further treatments consisting of purified chytrid zoospores and heterotrophic bacteria suspensions established the causes of improved fitness. First, Daphnia feed on chytrid zoospores which trophically upgrade cyanobacterial carbon. Second, an increase in heterotrophic bacterial biomass, promoted by cyanobacterial decay, provides an additional food source for Daphnia. In addition, chytrid infection induces fragmentation of cyanobacterial filaments, which could render cyanobacteria more edible. Our results demonstrate that chytrid parasitism can sustain zooplankton under cyanobacterial bloom conditions, and exemplify the potential of parasites to alter interactions between trophic levels.

Indexed as

AnimalsBehavior, AnimalCyanobacteriaDaphniaFeeding BehaviorFood ChainFungiGenotypeHost-Parasite InteractionsZooplankton

Identifiers

PMID27733762
PMCPMC5062065
OpenAlexW2529913820

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.