Population dynamics in variable environments. II. Correlated environments,sensitivity analysis and dynamics |
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Authors: | S.D. Tuljapurkar |
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Affiliation: | Department of Physics, Environmental Sciences Program, Portland State University, Portland, Oregon 97207 U.S.A. |
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Abstract: | Mean and mean square number are studied for age-structured populations with serially correlated temporally fluctuating vital rates. Results are that (1) Moments of population number can be used effectively to analyse growth rates of the coefficient of variation and an approximate median population number. (2) Analytical approximations to the growth rates of moments reveal dynamic consequences of covarying phenotypic traits and of temporal correlation along environmental sequences. (3) Dynamic properties can be explicitly related to the static sensitivity of an average vital rate matrix. (4) The use of (1), (2) and (3) allows an extension of many applications of static vital rate theory to dynamics with fluctuating rates. |
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