期刊
ECOLOGY LETTERS
卷 10, 期 1, 页码 1-15出版社
WILEY
DOI: 10.1111/j.1461-0248.2006.01001.x
关键词
conservation; density-dependent models; elasticity; matrix calculus; matrix population models; sensitivity; subsidized populations; time-varying models; transient dynamics
类别
Short-term, transient population dynamics can differ in important ways from long-term asymptotic dynamics. Just as perturbation analysis (sensitivity and elasticity) of the asymptotic growth rate reveals the effects of the vital rates on long-term growth, the perturbation analysis of transient dynamics can reveal the determinants of short-term patterns. In this article, I present a completely new approach to transient sensitivity and elasticity analysis, using methods from matrix calculus. Unlike previous methods, this approach applies not only to linear time-invariant models but also to time-varying, subsidized, stochastic, nonlinear and spatial models. It is computationally simple, and does not require calculation of eigenvalues or eigenvectors. The method is presented along with applications to plant and animal populations.
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