密度依赖的细粒度剖析：异种邻体的重要性

doi:10.1093/jpe/rtaf155

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密度依赖的细粒度剖析：异种邻体的重要性

收稿日期:2025-06-02 接受日期:2025-09-06

A Fine-Grained Look at Density Dependence: The Importance of Heterospecific Neighbors

Boliang Wei^1,2, Jiejie Jiao³, Fangdong Zheng², Guochun Shen⁴, Theint Theint Soe¹, Miaoyan Liu⁵, Jinwang Wang⁶, Yunquan Wang⁷, Lei Zhong^1,2, Jinliang Liu⁸, Yuan Tian⁵, Zupei Lei^2,*, Mingjian Yu^1,*

¹College of Life Sciences, Zhejiang University, Hangzhou 310058, China,²Zhejiang Wuyanling National Nature Reserve Management Center, Taishun 325500, China,³Zhejiang Academy of Forestry, Hangzhou 310023, China, ⁴Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China, ⁵Zhejiang Neusense Smart Technologies Ltd, Hangzhou 310030, China, ⁶Zhejiang Institute of Subtropical Crops, Wenzhou 325000, China, ⁷College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China, ⁸College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China

*Corresponding authors. E-mail: lzp2007@163.com (Z. L.); fishmj@zju.edu.cn (M. Y.)

Received:2025-06-02 Accepted:2025-09-06
Supported by:
This work was supported by the "Pioneer" and "Leading Goose" R&D Program of Zhejiang [grant numbers 2023C03137, 2024C03227].

摘要/Abstract

摘要： 同种和异种密度依赖在维持植物物种多样性中发挥着重要作用，但将所有异种视为均质整体显然忽视了不同异种邻体对目标物种存活或生长影响的差异。本研究基于邻域物种与目标物种的正负种间关联及动态变化，构建了异种邻体分类框架（Static-Dynamic Coupled Interspecific Association Classification Framework, SDIACF），并使用广义线性混合效应模型进一步分析了同种邻体和基于上述框架分类的不同异种邻体对目标物种存活率和生长速率的影响。结果显示，基于SDIACF解构出的不同异种邻体对目标物种具有不同的影响。其中，不考虑和目标物种的初始种间关联，种间关联更加负相关的异种邻体均对目标物种呈现负影响，更加正相关的异种邻体则呈现正影响。但在具有相同动态种间关联的异种邻体中，相比种间负相关的邻体，种间正相关的邻体对目标物种的存活呈现出稍强的促进作用，但对其生长略有不利。由此可见，异种邻体并非均质整体，它们在物种共存中发挥着重要且复杂的作用。SDIACF的提出不仅是对传统密度依赖研究的重要补充，更为我们进一步探索物种共存开辟了新视角。

关键词: 动静结合的种间关联, 解构异种邻体, 异种密度依赖, 同种密度依赖, 空间格局动态

Abstract: Density dependence, both conspecific and heterospecific, is widely recognized as a crucial driver of plant species diversity. However, treating multiple heterospecific species as a homogeneous group obviously overlooks the variability in the impacts of different heterospecific neighbors on the survival or growth of focal species. In this study, we developed the Static-Dynamic Coupled Interspecific Association Classification Framework (SDIACF), which categorizes heterospecific neighbors based on their positive/negative interspecific associations and dynamic changes with focal species. We further used generalized linear mixed-effect models to analyze how conspecific and various heterospecific neighbors classified by the above framework influenced the survival and growth rates of the focal species. Our results revealed that heterospecific neighbors, deconstructed using SDIACF, exerted distinct effects on the focal species. Specifically, regardless of their initial interspecific association with the focal species, heterospecific neighbors with more negative associations showed a negative impact on the focal species, while those with more positive associations showed a positive effect. However, among heterospecific neighbors exhibiting identical dynamic interspecific associations, positively associated neighbors were slightly more conducive to the survival of the focal species than negatively associated ones, but slightly detrimental to its growth. In summary, our results demonstrated that heterospecific neighbors are not a homogeneous entity but play important and complex roles in species coexistence. The development of SDIACF not only constitutes a significant supplement to traditional density dependence research but also offers a novel perspective for further exploring species coexistence.

Key words: Static-Dynamic Coupled Interspecific Association, Classification of heterospecific neighbors, Heterospecific density dependence, Conspecific density dependence, Spatial distribution dynamics

. 密度依赖的细粒度剖析：异种邻体的重要性[J]. Journal of Plant Ecology, DOI: 10.1093/jpe/rtaf155.

Boliang Wei, Jiejie Jiao, Fangdong Zheng, Guochun Shen, Theint Theint Soe, Miaoyan Liu, Jinwang Wang, Yunquan Wang, Lei Zhong, Jinliang Liu, Yuan Tian, Zupei Lei, Mingjian Yu. A Fine-Grained Look at Density Dependence: The Importance of Heterospecific Neighbors[J]. J Plant Ecol, DOI: 10.1093/jpe/rtaf155.