Biased estimates of pollen limitation due to resource reallocation across modular levels in the alpine herb Veratrum grandiflorum

Biased estimates of pollen limitation due to resource reallocation across modular levels in the alpine herb Veratrum grandiflorum | 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 Search Search ADVANCED SEARCH SCROLL Nordic Journal of Botany This is a preprint and has not been peer reviewed. Data may be preliminary. 18 March 2025 V1 Latest version Share on Biased estimates of pollen limitation due to resource reallocation across modular levels in the alpine herb Veratrum grandiflorum Authors : Xia Jiang 0009-0003-1547-4954 , Kai-Hsiu Chen , Shengman Lyu , Ling Liu , Meixian Yu , John Pannell , and GuoXing Cao [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174229609.97540183/v1 303 views 162 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Pollen limitation, a decrease in reproductive success via the female function due to deficient pollen receipt, may influence plant demography and the evolution of sexual systems. Nonetheless, empirical estimation of pollen limitation by pollen supplementation is prone to overestimation due to potential resource reallocation among resource pools within an individual, e.g., among flowers and inflorescences. Yet little empirical research has simultaneously evaluated the effect of resource reallocation across different modular levels within a single species, especially in alpine plants. We estimated pollen limitation at three modular levels (i.e., flower, raceme, and whole-plant) in the perennial alpine herb Veratrum grandiflorum in the eastern Himalayan Hengduan Mountains, using fruit set and seed production as two proxies for female reproductive success. Based on seed production, we found that pollen limitation differed significantly among modular levels, with the highest and lowest values being at the flower and whole-plant levels, respectively; this result points to resource reallocation among modules within individuals. In contrast, fruit set was relatively insensitive to pollen supplementation, so estimates of pollen limitation were low and did not differ among modular levels. These results highlight the importance of multi-modular and multi-metric approaches for accurately assessing pollen limitation, which may often be overestimated at lower modular levels. Supplementary Material File (main document.pdf) Download 6.38 MB Information & Authors Information Version history V1 Version 1 18 March 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Nordic Journal of Botany Keywords melanthiaceae plant reproduction pollen limitation pollinator resource redistribution supplemental pollination Authors Affiliations Xia Jiang 0009-0003-1547-4954 Sichuan Agricultural University View all articles by this author Kai-Hsiu Chen University of Lausanne View all articles by this author Shengman Lyu University of Lausanne View all articles by this author Ling Liu Sichuan Agricultural University College of Forestry View all articles by this author Meixian Yu Sichuan Agricultural University College of Forestry View all articles by this author John Pannell University of Lausanne View all articles by this author GuoXing Cao [email protected] Sichuan Agricultural University College of Forestry View all articles by this author Metrics & Citations Metrics Article Usage 303 views 162 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Xia Jiang, Kai-Hsiu Chen, Shengman Lyu, et al. Biased estimates of pollen limitation due to resource reallocation across modular levels in the alpine herb Veratrum grandiflorum. Authorea . 18 March 2025. DOI: https://doi.org/10.22541/au.174229609.97540183/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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