Premium
A New Model For Age‐Size Structure of a Population
Author(s) -
Sinko James W.,
Streifer William
Publication year - 1967
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1934533
Subject(s) - logistic function , age structure , structural equation modeling , statistical physics , ecology , population , population model , mathematics , econometrics , statistics , biology , demography , physics , sociology
An equation describing the dynamics of single species populations is derived. The model allows for variations in the physiological characteristics of animals of different ages and sizes. An analytical solution which holds under certain specific conditions is found. It is shown that Von Foerster's equation, the logistic equation and other prior models are special cases of the new model.