We describe a test that can be used to accurately assess the significance of a population model from a data sample using freely available software. We apply this test to the study of lexical relationships and demonstrate that the results obtained using this test are both theoretically more reliable and diierent from the results obtained using previous approaches.

Population modelling spans many domains and techniques, and new technologies offer cutting-edge opportunities to a growing field. The population modelling working group has been recently active in coordination amongst different population modellers of different fields. One activity is mapping the population modelling domain by examples of work. This is the second collaborative paper by group me...

Population modelling spans many domains and techniques, and new technologies offer cutting-edge opportunities to a growing field. The population modelling working group has been recently active in coordination amongst different population modellers of different fields. One activity is mapping the population modelling domain by examples of work. This is the second collaborative paper by group me...

* Correspondence: csutmlang@163. com School of Mathematical Science and Computing Technology, Central South University, Changsha, 410083, China Abstract Based on an abstract continuous theorem of k-set contractive operator and some analysis skill, a new result is obtained for the existence of positive periodic solutions to a neutral multi-delay logarithmic population model. Some sufficient cond...

In this paper we derive a stage-structured model for a single species on a finite onedimensional lattice. There is no migration into or from the lattice. The resulting system of equations, to be solved for the total adult population on each patch, is a system of delay equations involving the maturation delay for the species, and the delay term is nonlocal involving the population on all patches...