The data consist of monthly abundance estimates of fish and crustaceans from January 1981 to January 1995. Time series for more than one hundred species are available for study. Details about data collection and habitat are also given. Dynamica was designed as a research tool to help explore the complex inter-relationships between species and environmental factors such as temperature, salinity and tides . The strong theme running through Dynamica is the study of community-level dynamics .
Books often portray communities and food webs as static entities.
This program will show you just how dynamic food webs are . Dynamica has been designed to be useful to anyone with an interest in natural time series. It presents a range of elementary techniques for time series analysis, including data transformations, autocorrelations, moving averages and fourier analysis . The program presents a wide range of natural dynamic behaviours which make good examples for study. One of the most vivid features of Dynamica is its animated food web , which demonstrates clearly how dynamic and variable a food web is through time.