A System of Stochastic Models Applicable to Studies of Animal Population Dynamics

摘要: During the course of a study energy flow through natural population grasshopper Chorthippus parallelus (Zetterstedt) (Qasrawi 1966) quantitative information about various aspects life-history was required. Since only site available for this work subject to interference from other users and could not be supervised, there no possibility using known techniques (e.g. Richards & Waloff 1954) observation hatching rate. Furthermore ground so excessively stony that it impracticable sample egg pods in field. Lacking which these methods should yield impossible apply analytical such as those Dempster (1961). A new approach problems dynamics, involving construction system mathematical models represent life-cycle organism, therefore adopted (Read Ashford 1968). These models, unlike (1961), are stochastic sense they take account chance variations one another. Their application populations mentioned above similar spittlebug Neophilaenus lineatus (L.) is discussed. The authors believe has potential value many types study, foreshadowed by particular advantages first their self-consistency, second considerable flexibility permit adaptation wide range different characteristics, habitat situations sampling programmes.