So sánh phương pháp

	Phân tích Giá trị Chỉ thị	Phân tích cấu trúc mạng lưới thức ăn
Lĩnh vực	Sinh thái học	Sinh thái học
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1997	2000
Người khởi xướng	Marc Dufrene and Pierre Legendre	Richard Williams and Neo Martinez
Loại	species-habitat association analysis	ecological network characterization
Công trình gốc	Dufrene, M., & Legendre, P. (1997). Species assemblages and indicator species: the need for a flexible asymmetrical approach. Ecological Monographs, 67(3), 345-366.	Dunne, J. A., Williams, R. J., & Martinez, N. D. (2002). Network structure and robustness of marine food webs. The American Naturalist, 160(1), 117-129.
Tên gọi khác	IndVal, indicator species, fidelity, specificity	food web structure, network topology, trophic network, food chain analysis
Liên quan	4	4
Tóm tắt	Indicator Value (IndVal) analysis, developed by Dufrene and Legendre (1997), identifies species that reliably indicate the presence of particular environmental conditions, habitat types, or community groups. The method quantifies the association between species and habitat, producing an indicator value that combines specificity (exclusive preference for certain habitats) and fidelity (consistent presence when the habitat occurs). IndVal is widely used in conservation to identify species of management concern, in habitat typing to discover indicator species, and in restoration ecology to assess whether recovered communities match reference conditions.	Food web topology analysis characterizes the structure of predator-prey interactions within ecological communities using network metrics. Pioneered by Williams and Martinez (2000) and extended by Dunne and colleagues (2002), this approach maps which species eat which and quantifies network properties (connectivity, clustering, robustness). Understanding food web structure reveals how ecosystems are organized, how stable they are to species loss, and what roles different species play in ecosystem function.