Evidence map›Paper›PMID 33829209›Full record

ArticleJournal of nematology2020

Nematodes and the effect of seasonality in grassland habitats of South Africa.

Chantelle Girgan, Gerhard du Preez, Mariette Marais, Antoinette Swart, Hendrika Fourie

Open access · goldAbstract read
In one paragraph

Article in Journal of nematology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 18% 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

2 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. 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 3 institutions in 2 countries.

Chantelle GirganNematology Unit, Biosystematics, Agricultural Research Council-Plant Health and Protection (ARC-PHP), Private Bag X134, Queenswood, 0121, South Africa.
Gerhard du PreezUnit for Environmental Sciences and Management, North-West University (NWU), Private Bag X6001 Potchefstroom, 2520, South Africa.
Mariette MaraisNematology Unit, Biosystematics, Agricultural Research Council-Plant Health and Protection (ARC-PHP), Private Bag X134, Queenswood, 0121, South Africa.
Antoinette SwartNematology Unit, Biosystematics, Agricultural Research Council-Plant Health and Protection (ARC-PHP), Private Bag X134, Queenswood, 0121, South Africa.
Hendrika FourieUnit for Environmental Sciences and Management, North-West University (NWU), Private Bag X6001 Potchefstroom, 2520, South Africa.
Prognosys Biosciences (United States) · USAgricultural Research Council of South Africa · ZANorth-West University · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nematodes in South Africa have mainly been studied for their diversity and agricultural importance. However, the ecological status of nematodes and the effect of seasonal variation in local grasslands remain unknown. For this reason, a nematode study was conducted in the Telperion Nature Reserve and represented the first ecological study in a natural grassland area in South Africa. In total, 104 soil samples were collected during four consecutive seasons from 2015 until 2016 in three habitats, viz. (i) open grassland, (ii) shrubland with rocky outcrops, and (iii) riparian zone. From these the nematode community structure and soil ecosystem status were studied. In total, 93 genera from 50 families were recorded with herbivores and bacterivores being the most abundant trophic groups in all three habitats. Linear mixed models revealed that season had an overwhelmingly dominant impact on the condition, food web status, and functioning of the soil ecosystems with pairwise comparisons indicating that significantly higher values were recorded during winter. Interestingly, this seasonal shift can largely be attributed to fluctuations in the populations of only a few nematode groups (namely

Indexed as

Ecosystem functioningFood web statusGrassland habitatsSeasonal variationSoil ecology

Identifiers

PMID33829209
PMCPMC8015383
OpenAlexW3112462025

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.