Impacts of meadow connectivity on plant diversity in China’s Poyang Lake: novel insight into sustainable biodiversity conservation

Impacts of meadow connectivity on plant diversity in China’s Poyang Lake: novel insight into sustainable biodiversity conservation | 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 Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed.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. 23 May 2025 V1 Latest version Share on Impacts of meadow connectivity on plant diversity in China’s Poyang Lake: novel insight into sustainable biodiversity conservation Authors : Cheng Zhang 0000-0003-3666-5154 [email protected] , Wenbo Chen 0000-0001-7539-8410 , and Fangfang Huang Authors Info & Affiliations https://doi.org/10.22541/au.174799088.86194069/v1 180 views 148 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The decline of landscape connectivity caused by the increasing global habitat fragmentation has seriously threatened biodiversity. However, our understanding of how landscape connectivity affects biodiversity, especially for plant diversity, is limited. Taking the meadow of Poyang Lake as a case, this study firstly applied the landscape pattern metrics and the graph-theoretic connectivity metrics to analyze the changes of meadow structural connectivity and functional connectivity after determining the spatial distribution of meadow at each water level. Then, the impacts of meadow connectivity on plant diversity and its scale effects were revealed through the linear regression model (LRM), and the redundancy analysis (RDA) was used to explore the contrasted explanatory of meadow structural connectivity and functional connectivity to plant diversity patterns. The results showed that: (1) Meadow was submerged and divided by water and its shrinkage coexisted with fragmentation when the water level rose. While meadow emerged and spliced and its expansion co-occurred with cohesion when the water level fell. (2) When the water level increased, the shape of patch simplified, the area of patch shrank, the density of patch reduced, the aggregation of patch decreased and the meadow structural connectivity decreased progressively. Meanwhile, the number of components rose, the possibility of connectivity decreased and the meadow functional connectivity reduced dramatically. (3) Higher meadow connectivity not only led to greater plant species richness at the landscape scale but also increased plant community similarity at the patch scale. Functional connectivity explains plant diversity patterns better than structural connectivity. This thesis proposes a new insight of landscape connectivity for sustainable biodiversity conservation and landscape pattern optimization in lake areas. Supplementary Material File (manuscript.doc) Download 29.29 MB Information & Authors Information Version history V1 Version 1 23 May 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords habitat fragmentation landscape connectivity meadow plant diversity poyang lake scale effect Authors Affiliations Cheng Zhang 0000-0003-3666-5154 [email protected] Zhejiang University of Water Resources and Electric Power View all articles by this author Wenbo Chen 0000-0001-7539-8410 East China University of Technology View all articles by this author Fangfang Huang Zhejiang Guangsha Vocational and Technology University of Construction View all articles by this author Metrics & Citations Metrics Article Usage 180 views 148 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Cheng Zhang, Wenbo Chen, Fangfang Huang. Impacts of meadow connectivity on plant diversity in China’s Poyang Lake: novel insight into sustainable biodiversity conservation. Authorea . 23 May 2025. DOI: https://doi.org/10.22541/au.174799088.86194069/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. 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