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Population models with environmental stochasticity

✍ Scribed by Mats Gyllenberg; Göran Högnäs; Timo Koski

Publisher
Springer
Year
1994
Tongue
English
Weight
822 KB
Volume
32
Category
Article
ISSN
0303-6812

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✦ Synopsis

Two discrete population models, one with stochasticity in the carrying capacity and one with stochasticity in the per capita growth rate, are investigated. Conditions under which the corresponding Markov processes are null recurrent and positively recurrent are derived.

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Preclusion of steady-state statistical e
Preclusion of steady-state statistical equilibrium in a population model with environmental stochasticity
✍ Gerald Rosen 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 361 KB

For a species population model with size and genetic composition influenced by randomly varying environmental factors, it is shown by exact analysis that a steady-state statistical equilibrium is precluded tfa measure of the environmental stochasticity is sufficiently large. In such cases, the form