ABSTRACT
Patterns of animal distribution in space may generally be classed as random, clumped, or uniform. In a random pattern of distribution, each unit of space has an equal probability of having an organism present. Patterns of animal spatial distribution are often indicative of underlying behavioral responses. For example, a high degree of clumping may result from individuals being attracted to signals produced by members of their species. The chapter deals with practically any group of organisms, but is specifically intended for acoustical insects Field crickets are ideal since they are usually quite common in most areas during spring, summer, and early fall, and since they readily indicate their position in space by producing nearly-continuous acoustical signals. One popular method of determining spacial patterns uses a grid system in which the field is mapped in a series of quadrats.
