Spatial distributions of intra-community tree species under topographically variable conditions

Lv, Ting; Zhao, Rong; Wang, Ningjie; Xie, Lei; Feng, Yueyao; Li, Yao; Ding, Hui; Fang, Yanming

doi:10.1007/s11629-022-7642-9

Cited by 2 publications

(2 citation statements)

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“…The combined influence of habitat heterogeneity and dispersal restriction emerges as the primary determinant shaping species spatial distribution. Key words: monsoon evergreen broad-leaved forest; point pattern analysis; habitat heterogeneity; seed dispersal restrictions; intra-/interspecific associations 种群的空间分布格局是指同一生物的所有个体在特定时空范围内的分布状况(姚蓓等, 2015), 在一定程度上能够反映物种个体间的关系、物种对资源的利用方式以及物种与环境之间的相互作用 (Janík et al, 2016)。种群空间分布格局包括聚集分布、均匀分布和随机分布, 并且分布格局会随尺度变化而变化。因此, 分析森林群落中物种的空间分布格局和种内/种间关联是探索森林群落演替过程的有效途径, 有利于揭示种群的更新和维持机制 (Zhang et al, 2020;Wiegand et al, 2021;Lv et al, 2023 (Hubbell, 1979;Martínez et al, 2010;Shen et al, 2013;Nguyen et al, 2016)…”

Section: Discussionunclassified

Spatial pattern of dominant species with different seed dispersal modes in a monsoon evergreen broad-leaved forest in Pu’er, Yunnan Province

Wang,

Chen,

et al. 2023

Biodiversity Science

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Section: Discussionunclassified

Spatial pattern of dominant species with different seed dispersal modes in a monsoon evergreen broad-leaved forest in Pu’er, Yunnan Province

Wang,

Chen,

et al. 2023

Biodiversity Science

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“…species i represents the species of the reference tree, while species j represents the species of one of the four nearest trees to the reference tree. Here, i denotes the nth tree within the subplot, and j denotes the nth of the four nearest trees to the reference tree, where n = 1, 2, 3, 4 [39].…”

Section: Explanatory Variables Equation Notementioning

confidence: 99%

Neighborhood Competition and Understory-Associated Vegetation Are Important Factors Influencing the Natural Regeneration of Subtropical Mountain Forests

Wang,

Qin,

Fang

et al. 2024

Forests

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Natural regeneration is deemed essential for maintaining biodiversity and ecosystem stability. Previous studies, however, have primarily concentrated on regions exhibiting limited environmental and climatic variability, overlooking the classification of natural regeneration based on age and source. Research conducted at the mesoscale, characterized by increased environmental variability and the incorporation of neighborhood competition and understory-associated vegetation, enhances our comprehension of the multifaceted influences on natural regeneration. To comprehend this issue, this study implemented 60 plots, each measuring 20 m × 20 m, across five distinct areas of Chongqing, China. Twenty explanatory variables were chosen from five diverse categories: understory vegetation, neighborhood competition, stand structure, climatic factors, and environmental factors. And the naturally regenerated species were classified into seedlings and saplings, as well as endogenous and exogenous species, based on their age and origin. We examined the response of the different categories of natural regeneration to various factors and constructed a structural equation model (SEM) for significant factors to investigate their direct and indirect effects on natural regeneration. A total of 61 regenerated tree species belonging to 29 families and 42 genera were found in the study area, and the naturally regenerating species with high importance values were Quercus fabri, Robinia pseudoacacia, Alangium chinense, Cunninghamia lanceolata, and Ligustrum lucidum. It was found that neighborhood competition and understory-associated vegetation explained the largest proportion (more than 50%) of the variation in the different categories of natural regeneration, and forests with clumped distribution (W), a high mingling index (M) and strong competition (H) had a reduced natural regeneration capacity. Understory-associated herbs significantly reduced natural regeneration and the crowdedness index (C) significantly inhibited the understory-associated herbs, thus indirectly promoting natural regeneration. The shrub cover is significantly and positively correlated with the number of naturally regenerated plants and can be used as an indicator of a forest community’s regeneration potential. Understanding the differences in the importance of various factors at the mesoscale, as well as their direct and indirect impacts, can help us further comprehend the mechanisms of natural regeneration and provide a foundation for the sustainable development of forests.

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Spatial distributions of intra-community tree species under topographically variable conditions

Cited by 2 publications

References 46 publications

Spatial pattern of dominant species with different seed dispersal modes in a monsoon evergreen broad-leaved forest in Pu’er, Yunnan Province

Spatial pattern of dominant species with different seed dispersal modes in a monsoon evergreen broad-leaved forest in Pu’er, Yunnan Province

Neighborhood Competition and Understory-Associated Vegetation Are Important Factors Influencing the Natural Regeneration of Subtropical Mountain Forests

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