Some Results on the Analysis of a Climax Population Model : A Single-Species Two-Age Class Climax Population Model

ISBN-13: 9783639107418 / Angielski / Miękka / 2009 / 84 str.

Shurron Farmer

Opis

A difference equation model of a single climax species with two age classes (juvenile and adult) is studied. In a single species climax population model with no age structure, high population densities lead to extinction. Studies of discrete-time models of climax species with age structure is developing in the literature. In this monograph, it is shown that age structure makes it possible for a density that has extinction as its ultimate life history to have persistence as its ultimate fate with juvenile-adult competition. This suggests that juvenile-adult competition may be critical to species survival. Finally, the results of the analysis are also applied to popluation data of the purse-seine anchovy fish, Engraluis capensis, that is located off the West Cape coast of South Africa. While the phenonmena of intraspecific competition and age structure are not newly observed phenonmena, the study of this phenomena in climax models is developing.

O autorze

Dr. Shurron Farmer teaches in the Mathematics Department at the
University of the District of Columbia. He earned his B.S. in
Mathematics from Florida A&M University in 1994 and his M.S. and
Ph. D. in mathematics from Howard University in 1996 and 2001,
respectively. He's also taught at Morgan State University.