Zobrazeno 1 - 10
of 339
pro vyhledávání: '"McKane, A. J."'
The dataset collected at the Cape Rodney-Okakari Point Marine (CR-OPM) reserve on the North Island of New Zealand is rather unique. It describes the cyclic time evolution of a rocky intertidal community, with the relative abundances of the various co
Externí odkaz:
http://arxiv.org/abs/2409.19378
Autor:
McKane, Alan J
Publikováno v:
J. Phys. A 52, 055401 (2019)
The question of the asymptotic form of the perturbation expansion in scalar field theories is reconsidered. Renewed interest in the computation of terms in the epsilon-expansion, used to calculate critical exponents, has been frustrated by the differ
Externí odkaz:
http://arxiv.org/abs/1807.00656
Publikováno v:
J. Stat. Phys. 172, 3-43 (2018)
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 indi
Externí odkaz:
http://arxiv.org/abs/1707.08235
Autor:
Parra-Rojas, César, McKane, Alan J.
Publikováno v:
Europhys. Lett. 122, 18001 (2018)
We explore a model of metapopulation genetics which is based on a more ecologically motivated approach than is frequently used in population genetics. The size of the population is regulated by competition between individuals, rather than by artifici
Externí odkaz:
http://arxiv.org/abs/1707.07145
Publikováno v:
Phys. Rev. E 96, 022416 (2017)
The relationship between the M-species stochastic Lotka-Volterra competition (SLVC) model and the M-allele Moran model of population genetics is explored via timescale separation arguments. When selection for species is weak and the population size i
Externí odkaz:
http://arxiv.org/abs/1704.07565
Publikováno v:
Phys. Rev. E 94, 062408 (2016)
Networks of contacts capable of spreading infectious diseases are often observed to be highly heterogeneous, with the majority of individuals having fewer contacts than the mean, and a significant minority having relatively very many contacts. We der
Externí odkaz:
http://arxiv.org/abs/1609.08450
Publikováno v:
Proc. Natl. Acad. Sci., 113:E4745-E4754 (2016)
Deterministic evolutionary theory robustly predicts that populations displaying altruistic behaviours will be driven to extinction by mutant cheats that absorb common benefits but do not themselves contribute. Here we show that when demographic stoch
Externí odkaz:
http://arxiv.org/abs/1608.03471
Publikováno v:
Phys. Rev. E 94, 052133 (2016)
We explore the properties of discrete-time stochastic processes with a bounded state space, whose deterministic limit is given by a map of the unit interval. We find that, in the mesoscopic description of the system, the large jumps between successiv
Externí odkaz:
http://arxiv.org/abs/1607.03544
Publikováno v:
PLoS ONE 11(6): e0157261 (2016)
Modellers of complex biological or social systems are often faced with an invidious choice: to use simple models with few mechanisms that can be fully analysed, or to construct complicated models that include all the features which are thought releva
Externí odkaz:
http://arxiv.org/abs/1604.00903
Publikováno v:
Phys. Rev. E 93, 052119 (2016)
We study individual-based dynamics in finite populations, subject to randomly switching environmental conditions. These are inspired by models in which genes transition between on and off states, regulating underlying protein dynamics. Similarly swit
Externí odkaz:
http://arxiv.org/abs/1512.00785