Strengthening of Environmental Filtering Reshapes Algal Assembly Processes in the Anthropocene

Strengthening of Environmental Filtering Reshapes Algal Assembly Processes in the Anthropocene | 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 Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed.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. 27 November 2025 V1 Latest version Share on Strengthening of Environmental Filtering Reshapes Algal Assembly Processes in the Anthropocene Authors : Rui Ma , Janne Soininen 0000-0002-8583-3137 , Aifeng Zhou 0000-0001-8349-8585 , Panpan Ji , and Jianhui Chen 0000-0002-6768-1619 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.176424144.48407435/v1 369 views 208 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Understanding community assembly processes across spatiotemporal scales represents a central challenge in ecology. Short-term assembly studies reveal key mechanisms but are inadequate for reconstructing the dynamics of assembly processes or separate natural and anthropogenic states, underscoring the importance of long-term studies. Here, we investigated algal assembly processes over the past two centuries in two natural lakes and two human-impacted lakes using sediment DNA and multiple approaches including null models and joint species distribution models. We revealed that, overall, stochastic processes have dominated algal assembly in these relatively remote lakes over the past two centuries. Interestingly, in recent decades, deterministic processes, particularly environmental filtering, increased temporal homogenization across communities in both lake types. Mechanistically, environmental filtering enhanced network interactions and niche overlap, driving homogenization that ultimately reduced community resilience. This study provides long-term insights into algal assembly processes under multifaceted environmental pressures. Crucially, we reveal a potential loss of resilience even in natural lakes in the Anthropocene, forewarning a pervasive crisis under global change. Supplementary Material File (main text.docx) Download 1.32 MB Information & Authors Information Version history V1 Version 1 27 November 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords anthropocene assembly processes environmental filtering homogenization resilience Authors Affiliations Rui Ma Lanzhou University View all articles by this author Janne Soininen 0000-0002-8583-3137 University of Helsinki View all articles by this author Aifeng Zhou 0000-0001-8349-8585 Lanzhou University View all articles by this author Panpan Ji Lanzhou University View all articles by this author Jianhui Chen 0000-0002-6768-1619 [email protected] Lanzhou University View all articles by this author Funding Information China Scholarship Council Metrics & Citations Metrics Article Usage 369 views 208 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Rui Ma, Janne Soininen, Aifeng Zhou, et al. Strengthening of Environmental Filtering Reshapes Algal Assembly Processes in the Anthropocene. Authorea . 27 November 2025. DOI: https://doi.org/10.22541/au.176424144.48407435/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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