Toxigenic Vibrio cholerae is the etiological agent of cholera, an acute dehydrating diarrhoea that occurs in epidemic form in many developing countries. Aquatic ecosystem is the major habitat of toxigenic V. cholerae, where it interacts with various abiotic and biotic factors to survive. To acknowledge the seasonal appearance, endemic nature and genetic deviation of V. cholerae it is essential ...

Few studies have examined seasonal diet variation and trophic relationships among fishes in shallow subtropical waters. We sampled consecutive wet and dry seasons within Biscayne Bay, Florida, USA, to examine seasonal diet and feeding habit variation in juvenile gray snapper Lutjanus griseus (GS), bluestriped grunt Haemulon sciurus (BSG), seabream Archosargus rhomboidalis (SB) and great barracu...

We constructed a mathematical model for the transmission of Schistosoma mekongi in Cambodia. The simulation of the model will be instrumental in planning schistosomiasis control measures. The model includes two definitive hosts, humans and dogs, as animal reservoirs. Dogs are recognized to play an important role in schistosomiasis transmission in Cambodia. For the purpose of dealing with age-sp...

First we deal with a brief introduction of the autotroph-herbivore model system along with deterministic analysis of local stability, bifurcation behavior, and persistence of the populations. The second part consists of the stochastic formulation of the model system to incorporate the effect of environmental fluctuation and then analysis of nonequilibrium fluctuation. Stochastic stability crite...

DY 10.1 Tue 9:30 ZEU 160 Fluctuation-Driven Shifts in Selection Regimes in Population Dynamics — •Yen Ting Lin1, Hyejin Kim2, and Charles Doering3 — 1Max Planck Institutes for the Physics of Complex Systems, Noetnitzer Str. 38, Dresden 01187 , Germany — 2Department of Mathematics, Michigan State University, East Lansing, MI 48824, USA — 3Department of Mathematics, University of Michigan, Ann Ar...

1.0 Introduction Seasonal variations in production and sales are a well known fact in business. Seasonality refers to regular and repetitive fluctuation in a time series which occurs periodically over a span of less than a year. The main cause of seasonal variations in time series data is the change in climate. For example, sales of woolen clothes generally increase in winter season. Besides th...