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Competitive Advantage of Broussonetia papyrifera Growing in a Native Area as Suggested by Structural Diversity

Biology (Basel, Switzerland), 2023-11, Vol.12 (11), p.1410 [Peer Reviewed Journal]

2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 2079-7737 ;EISSN: 2079-7737 ;DOI: 10.3390/biology12111410

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  • Title:
    Competitive Advantage of Broussonetia papyrifera Growing in a Native Area as Suggested by Structural Diversity
  • Author: Zhou, Yanrong ; Zhang, Guangfu
  • Subjects: Allelopathy ; biological invasion ; Broussonetia ; Broussonetia papyrifera ; Climate ; Competition ; Competitiveness ; Deciduous forests ; Females ; Forests ; Genetic diversity ; Geographical distribution ; Indigenous species ; Introduced species ; Invasive species ; paper mulberry ; Plot (Narrative) ; regenerating strategy ; structural diversity ; Trees
  • Is Part Of: Biology (Basel, Switzerland), 2023-11, Vol.12 (11), p.1410
  • Description: Paper mulberry (Broussonetia papyrifera) is currently an invasive species on several continents. However, little is known about whether paper mulberry has a competitive advantage over its surrounding trees in its native distribution range, subtropical regions of China. Here, we determined the relative intraspecific and interspecific competitive capacity of paper mulberry in three subtropical deciduous broad-leaved forests using the indices of structural diversity including the mixing index, the tree–tree interval index, and the diameter/height differentiation index. It was found that more than 80% of mingling index values were not greater than 0.25, suggesting a stronger competitiveness of paper mulberry relative to other tree species. The tree–tree interval index values ranged between 1 m and 2 m, suggesting a strong competition between paper mulberry and its neighbors. Moreover, more than 60% of the height differentiation index and diameter differentiation index values were positive, suggesting that the reference paper mulberry had a slight competitive advantage over neighboring trees in both the horizontal and vertical planes. These collectively suggest a competitive advantage over other tree species in the native distribution range, which may play a significant role in the ecological invasion of paper mulberry. Our findings not only help to reveal the invasion mechanism of paper mulberry, but also provide an important reference for the management and utilization of paper mulberry in invaded areas.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 2079-7737
    EISSN: 2079-7737
    DOI: 10.3390/biology12111410
  • Source: DOAJ Directory of Open Access Journals
    PubMed Central
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
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