Sammenlign metoder

	Metabolisk økologisk teori	Leslie-matrise
Fagfelt	Økologi	Økologi
Familie	Process / pipeline	Process / pipeline
Opprinnelsesår	2004	1945
Opphavsperson	James Brown	Patrick Leslie
Type	metabolic scaling theory	structured population dynamics
Opprinnelig kilde	Brown, J. H., Gillooly, J. F., Allen, A. P., Savage, V. M., & West, G. B. (2004). Toward a metabolic basis of ecology. Ecology, 85(7), 1771-1789.	Leslie, P. H. (1945). On the use of matrices in certain population mathematics. Biometrika, 33(3), 183-212.
Alias	MTE, metabolic scaling, temperature-size rule, energy allocation	Leslie model, age-structured population model, matrix population model, population dynamics
Relaterte	4	4
Sammendrag	The Metabolic Theory of Ecology (MTE), developed by Brown and colleagues (2004), provides a unifying framework linking individual metabolic rate to ecological patterns across levels of organization (organisms, populations, ecosystems). MTE predicts how metabolic rate scales with body size (allometry) and temperature, and uses these scaling relationships to explain patterns in life history, population growth, community structure, and ecosystem dynamics. The theory is grounded in physics: metabolic rate is constrained by supply of resources (energy and nutrients) and demand determined by biochemical kinetics.	The Leslie matrix is a deterministic model of age-structured population dynamics, introduced by Patrick Leslie (1945). It projects population size and structure forward in time using age-specific fertility and survival rates. A Leslie matrix encodes these vital rates in a square matrix; multiplying the matrix by a population vector yields the population's composition at the next time step. This approach enables calculation of the population's asymptotic growth rate (λ), identification of stable age structure, and sensitivity analysis—understanding which vital rates most strongly influence population growth.