标题: A conceptual framework for constructing and evaluating directed ecological networks: Evidence from Wuhan Metropolitan Area, China

作者: Lu, YC (Lu, Yanchi); Huang, D (Huang, Dan); Tong, ZM (Tong, Zhaomin); Liu, YL (Liu, Yaolin); He, JH (He, Jianhua); Liu, YF (Liu, Yanfang)

来源出版物: ENVIRONMENTAL IMPACT ASSESSMENT REVIEW  卷: 106  文献号: 107464  DOI: 10.1016/j.eiar.2024.107464  Early Access Date: FEB 2024  Published Date: 2024 MAY  

摘要: Many ecologists have demonstrated that building ecological networks (ENs) can resist habitat fragmentation. However, existing studies have not yet explored the directionality of ENs. In this study, we proposed a research framework for the construction and structural evaluation of directed ENs from the perspective of dynamic biological flows. The framework reveals the operational essence of ENs, which is that dynamic biological flows rely on static carriers for directed movement. Thus, this framework overcomes the shortcomings of previous studies that only focused on static carriers and ignored dynamic biological flows. In other words, this study will guide the research of ENs from undirected to directed. The specific research and innovations are as follows. (1) First, the MaxEnt model and InVEST model were combined to evaluate habitat suitability in Wuhan Metropolitan Area (WHM), and 180 species habitats were identified accordingly. A total of 366 potential species migration corridors were extracted based on the identified species habitats and ecological resistance surfaces. (2) Second, we constructed a new relationship function between dynamic biological flows and potential biological flows, species dispersal probability, and species dispersal attraction. The results indicate that dynamic biological flows can serve as the measurement of directionality for directed ENs, and their density and intensity exhibit significant spatial heterogeneity. (3) Finally, we introduced the Chu-Liu/Edmonds' algorithm for complex network analysis to reveal the tree-like structure of directed ENs. The results show that the backbone and branches of directed ENs in WHM are species migration pathways with maximum dynamic biological flows linking global and local habitats, respectively. Meanwhile, the implementation of hierarchical protection according to the treelike structure of directed ENs can significantly enhance its robustness.

作者关键词: Directed ecological networks; Biological flow; Structure; Minimum spanning tree

地址: [Lu, Yanchi; Huang, Dan; Tong, Zhaomin; Liu, Yaolin; He, Jianhua; Liu, Yanfang] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Liu, Yaolin; He, Jianhua; Liu, Yanfang] Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, Wuhan 430079, Peoples R China.

[Liu, Yaolin; Liu, Yanfang] Wuhan Univ, Collaborat Innovat Ctr Geospatial Informat Technol, Wuhan 430079, Peoples R China.

[Liu, Yaolin] Duke Kunshan Univ, Kunshan 215316, Peoples R China.

通讯作者地址: Liu, YL (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址: yanchilu@whu.edu.cn; sunnyhd@whu.edu.cn; tongzm2215@126.com; yaolin610@163.com; hjianh@whu.edu.cn; yfliu610@163.com

影响因子：7.9