手法を比較

	機能的多様性（Functional Diversity）	食物網トポロジー解析
分野	生態学	生態学
系統	Process / pipeline	Process / pipeline
提唱年	2008	2000
提唱者	Olivier Mouillot	Richard Williams and Neo Martinez
種類	trait-based diversity analysis	ecological network characterization
原典	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.	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.
別名	functional traits, trait diversity, ecological niche, functional space	food web structure, network topology, trophic network, food chain analysis
関連	4	4
概要	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.	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.