Reframing plant strategies: Identifying a competitive-facilitative continuum

Reframing plant strategies: Identifying a competitive-facilitative continuum | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 3 March 2025 V1 Latest version Share on Reframing plant strategies: Identifying a competitive-facilitative continuum Authors : Emily Holden 0000-0002-6454-9786 [email protected] and James Cahill Authors Info & Affiliations https://doi.org/10.22541/au.174100912.21220068/v1 255 views 123 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract A standard belief is that species can be organized in competitive hierarchies, leading to concepts of plant strategies. Based on species' average competition values, this approach may fail to predict specific outcomes and overlook common facilitative interactions, biasing understandings of species interactions. Using a mesocosm experiment, we examined interactions of 13 native grassland species grown alone and in 168 pairwise combinations under two nutrient conditions. We measured the positive and negative effects of plants on neighbours and their responses to neighbours. All species engaged in both facilitative and competitive interactions, and neighbour effects and responses were positively related, suggesting that species specialize at either end of the interaction gradient. Nutrient addition reduced the strength of both competitive and facilitative plant-plant interactions, thereby reducing variation in plant growth. These results suggest the existence of a competition-facilitation continuum, integrating both effects on and from neighbours, along which plant strategies may fall. Supplementary Material File (main document.docx) Download 945.95 KB Information & Authors Information Version history V1 Version 1 03 March 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords biomass response competitive effect competitive response grasslands intraspecific variation plant interactions Authors Affiliations Emily Holden 0000-0002-6454-9786 [email protected] University of Alberta View all articles by this author James Cahill University of Alberta View all articles by this author Metrics & Citations Metrics Article Usage 255 views 123 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Emily Holden, James Cahill. Reframing plant strategies: Identifying a competitive-facilitative continuum. Authorea . 03 March 2025. DOI: https://doi.org/10.22541/au.174100912.21220068/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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