Disentangling the relative influence of regeneration processes on marsh plant assembly with a stage-structured plant assembly model

Qi, M; Zhao, F; Sun, T; Voinov, A

Disentangling the relative influence of regeneration processes on marsh plant assembly with a stage-structured plant assembly model

Qi, M Zhao, F Sun, T Voinov, A

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Ecological Modelling, 2021, 455
Issue Date:: 2021-09-01

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Field	Value	Language
dc.contributor.author	Qi, M
dc.contributor.author	Zhao, F
dc.contributor.author	Sun, T
dc.contributor.author	Voinov, A https://orcid.org/0000-0002-2985-4574
dc.date.accessioned	2022-08-06T06:11:22Z
dc.date.available	2022-08-06T06:11:22Z
dc.date.issued	2021-09-01
dc.identifier.citation	Ecological Modelling, 2021, 455
dc.identifier.issn	0304-3800
dc.identifier.issn	1872-7026
dc.identifier.uri	http://hdl.handle.net/10453/159704
dc.description.abstract	In salt marshes, abiotic factors, interspecific competition or facilitation, and herbivory have been discussed extensively as important drivers of marsh plant distribution patterns. However, the relative importance of various regeneration processes across stress gradients received little attention, despite their importance in explaining plant community dynamics. In this study, we built a stage-structured plant assembly model to study how the influence of each regeneration process on plant assembly dynamics varies with environmental stress level, plant succession stage and initial seed availability, in a salt marsh in Yellow River Delta National Nature Reserve in China. We found plant assembly at higher saline conditions is mainly governed by stress tolerance regardless of the stage of succession and initial seed availability, as salinity stress can suppress biomass accumulation and propagule production of salt intolerant species. Under less saline conditions with high seed availability, juvenile competition plays the most important role throughout succession. When initial seed availability is low, dispersal is more important at the beginning, but juvenile competition is more important at later stage and determines the plant competition outcomes. Our findings imply seed availability is important in determining plant succession trajectories under less stressful conditions, and should be given more attention during restoration management in coastal marshes.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Ecological Modelling
dc.relation.isbasedon	10.1016/j.ecolmodel.2021.109646
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Ecology
dc.title	Disentangling the relative influence of regeneration processes on marsh plant assembly with a stage-structured plant assembly model
dc.type	Journal Article
utslib.citation.volume	455
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - PERSWADE - Centre on Persuasive Systems for Wise Adaptive Living
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Computer Science
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-06T06:11:17Z
pubs.publication-status	Published
pubs.volume	455

Abstract:

In salt marshes, abiotic factors, interspecific competition or facilitation, and herbivory have been discussed extensively as important drivers of marsh plant distribution patterns. However, the relative importance of various regeneration processes across stress gradients received little attention, despite their importance in explaining plant community dynamics. In this study, we built a stage-structured plant assembly model to study how the influence of each regeneration process on plant assembly dynamics varies with environmental stress level, plant succession stage and initial seed availability, in a salt marsh in Yellow River Delta National Nature Reserve in China. We found plant assembly at higher saline conditions is mainly governed by stress tolerance regardless of the stage of succession and initial seed availability, as salinity stress can suppress biomass accumulation and propagule production of salt intolerant species. Under less saline conditions with high seed availability, juvenile competition plays the most important role throughout succession. When initial seed availability is low, dispersal is more important at the beginning, but juvenile competition is more important at later stage and determines the plant competition outcomes. Our findings imply seed availability is important in determining plant succession trajectories under less stressful conditions, and should be given more attention during restoration management in coastal marshes.

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http://hdl.handle.net/10453/159704