手法を比較

	食物網トポロジー解析	機能的多様性（Functional Diversity）
分野	生態学	生態学
系統	Process / pipeline	Process / pipeline
提唱年	2000	2008
提唱者	Richard Williams and Neo Martinez	Olivier Mouillot
種類	ecological network characterization	trait-based diversity analysis
原典	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.	Villéger, S., Mason, N. W., & Mouillot, D. (2008). New multidimensional functional diversity indices for a multifaceted framework in functional ecology. Ecology, 89(8), 2290-2301.
別名	food web structure, network topology, trophic network, food chain analysis	functional traits, trait diversity, ecological niche, functional space
関連	4	4
概要	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.	Functional diversity quantifies the range and abundance distribution of functional traits (morphology, physiology, behavior) among species in a community. Developed by Mouillot and colleagues (2008), functional diversity indices measure how different species are in their ecological roles and resource use strategies. Unlike species richness (number of species), functional diversity captures the breadth of ecological strategies, predicting ecosystem function and stability.