Evidence map›Paper›PMID 34141481›Full record

ArticlePeerJ2021

Spatial patterns and associations of tree species at different developmental stages in a montane secondary temperate forest of northeastern China.

Jia Liu, Xuejiao Bai, You Yin, Wenguang Wang, Zhiqiang Li, Pengyu Ma

Abstract read
In one paragraph

Article in PeerJ, 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.

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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.

Jia LiuCollege of Forestry, Shenyang Agriculture University, Shenyang, China.
Xuejiao BaiCollege of Forestry, Shenyang Agriculture University, Shenyang, China.
You YinCollege of Forestry, Shenyang Agriculture University, Shenyang, China.
Wenguang WangCollege of Forestry, Shenyang Agriculture University, Shenyang, China.
Zhiqiang LiCollege of Forestry, Shenyang Agriculture University, Shenyang, China.
Pengyu MaCollege of Forestry, Shenyang Agriculture University, Shenyang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSecondary forests have become the major forest type worldwide. Research on spatial patterns and associations of tree species at different developmental stages may be informative in understanding the structure and dynamic processes of secondary forests.

methodsIn this study, we used point pattern analysis to analyze the spatial patterns and associations of tree species at seedling, sapling and adult stages in a 4ha plot in the montane secondary temperate forest of northeastern China.

resultsWe found that species showed similar patterns at seedling, sapling and adult stages, and aggregation was the dominant pattern. The spatial patterns of tree species were mainly affected by habitat heterogeneity. In addition, the strength of positive or negative associated pattern among tree species would decrease with developmental stages, which attributed to neighborhood competition and plant size increasing.

conclusionsOur results indicated that the spatial patterns and associations of tree species at seedling and sapling stages partly reflected that at adult stage; habitat heterogeneity and neighborhood competition jointly contributed to species coexistence in this secondary forest.

Indexed as

AggregationCompetitionDevelopmental stagesHabitat heterogeneityPlant sizePoint pattern analysisSecondary forestsSpatial associationSpatial patternSpecies coexistence

Identifiers

PMID34141481
PMCPMC8180193

What OpenQuestion holds

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LicenceCC BY
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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.