2018
DOI: 10.1111/nph.15528
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Facilitation from an intraspecific perspective – stress tolerance determines facilitative effect and response in plants

Abstract: Summary Plant–plant interactions are reciprocal and include effects on and response to neighbours. Distinct traits confer competitive effect and response ability, but how specific traits determine effect and response in facilitative interactions has not been studied experimentally. We utilized the model species Arabidopsis thaliana to test for trait dependence of facilitative interactions. Salt‐sensitive (sos) mutants or salt‐tolerant wild‐types were exposed to an experimental salinity gradient with and with… Show more

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Cited by 34 publications
(34 citation statements)
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“…However, few existing studies have attempted to explicitly link density-dependence with changes of plant interactions along stress gradients. Facilitation involves benefactors and beneficiaries, i.e., stress amelioration by benefactors (facilitative effect) and sensitivity of beneficiaries to this amelioration (facilitative response) are equally important 34 . Nevertheless, most studies focus either on beneficiaries or on benefactors alone 35,36 and so are the few studies investigating density-dependence 24,27 .…”
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confidence: 99%
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“…However, few existing studies have attempted to explicitly link density-dependence with changes of plant interactions along stress gradients. Facilitation involves benefactors and beneficiaries, i.e., stress amelioration by benefactors (facilitative effect) and sensitivity of beneficiaries to this amelioration (facilitative response) are equally important 34 . Nevertheless, most studies focus either on beneficiaries or on benefactors alone 35,36 and so are the few studies investigating density-dependence 24,27 .…”
mentioning
confidence: 99%
“…Indeed, facilitation may be observed less easily among conspecifics due to larger niche overlap 19,20 and stronger intraspecific competition. However, the advantage is that it could provide a general framework, which is unconfounded by species-specifity of facilitative effect and response 34,39 . Namely, (conspecific) benefactors and beneficiaries do not differ in their niches and are affected similarly by any given stress factor and vice-versa, share the very same resources.…”
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confidence: 99%
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“…We provide some support for these modelssmaller offspring were advantageous when stress was reduced (albeit through facilitation, rather than fecundity), whereas larger offspring won when stress was not ameliorated (i.e., neighborfree conditions). Surprisingly, stress-tolerance models do not consider that facilitation may create spatial heterogeneity in stress for propagules (D'Andrea et al 2013;Muller-Landau 2010), despite well-established links between facilitation and stress tolerance more generally (Liancourt et al 2005;Zhang and Tielbörger 2019). Given our findings, explicit exploration of positive interactions may greatly extend these theories.…”
Section: Discussionmentioning
confidence: 69%
“…; Muller‐Landau ), despite well‐established links between facilitation and stress tolerance more generally (Liancourt et al. ; Zhang and Tielbörger ). Given our findings, explicit exploration of positive interactions may greatly extend these theories.…”
Section: Discussionmentioning
confidence: 99%