Current knowledge of the principles of population dynamics is unsatisfactory on both empirical and theoretical grounds. The main problems are a weak empirical base, overly simple models with but vague links to real systems, and little effective interplay between theory and experiment. We therefore believe there is a need for renewed emphasis on carefully controlled laboratory studies of populat...

Stock dynamics and demographic parameters of a family of annual icefishes (Salangidae) were investigated in Lake Nanyi in eastern China before and after construction of irrigation infrastructure. After hydroregulation, two of four icefish species, a migratory species (Hemisalanx brachyrostralis) and a previously rare species (Neosalanx tangkahkeii) were absent from survey samples. The relative ...

33 Begon, M. and Wall, R. (1987) Individual variation and competitor coexistence: a model, Funcf. Ecol. 1,237-241 Rogers, A.R. (1986) Population dynamics under exploitation competition, J. Theor. Biol. 119,363-368 Rogers, A.R. (1989) Resource partitioning and stability of population dynamics: a reply to Lomnicki and Sedziwy, J. Theor. Biol. 138, 545-549 Bjernstad, O.N. and Hansen, T.F. (1994) I...

Aznar, F. Javier, et al. 2001. Establishing the relative importance of sympatric definitive hosts in the transmission of the sealworm, Pseudoterranova decipiens: a host-community approach, pp. 161171 In: Geneviève Desportes and Gary McClelland, editors, Sealworms in the North Atlantic: ecology and population dynamics. North Atlantic Marine Mammal Commission, Tromso. NMML BOOK COLLECTION QL128 ....

Soliton rate equations are based on non-Kolmogorovian models of probability and naturally include autocatalytic processes. The formalism is not widely known but has great unexplored potential for applications to systems interacting with environments. Beginning with links of contextuality to nonKolmogorovity we introduce the general formalism of soliton rate equations and work out explicit examp...

We revisit the non-bilinear incidence rate model proposed by Severo, in order to introduce a derived dynamical model taking into account the heterogeneities related to environment, immunity and genetics. The properties of that model can be better understood by the means of the population dynamics theory.

It is well understood that populations cannot grow without bound and that it is competition between individuals for resources which restricts growth. Despite centuries of interest, the question of how best to model density dependent population growth still has no definitive answer. We address this question here through a number of individual based models of populations expressed using the proce...

We present supplementary investigations referring to the model of an evolving population described in Physica A 252 (1998) 325 335. The population is composed of individuals characterised by their genetic strings, phenotypes and ages. We discuss the in uence of probabilities of survival of the individuals on the dynamics and phenotypic variability of the population. We show that constant surviv...

Massive amounts of observation data recorded by amateurs are available for butterfl ies, allowing scientists to study their population dynamics and response to environmental threats. They report serious declines in many rarer species leading to an overall loss in biodiversity. As these declines refl ect the impacts of land use change, climate change and pesticide use, they also provide an alarm...

We describe a continuous-time modelling framework for biological population dynamics that accounts for demographic noise. In the spirit of the methodology used by statistical physicists, transitions between the states of the system are caused by individual events while the dynamics are described in terms of the time-evolution of a probability density function. In general, the application of the...