The following journal articles provide background information about spatial statistical models on stream networks. Articles [1,2] are written for a statistical or quantitative ecological audience and provide technical details, as well as a discussion of spatial statistical models on stream networks. Article  also provides details about the spatial statistical models, but is written for an ecological audience, with numerous worked examples provided in the appendices. Article  provides an interesting application of the models to stream temperature data in the Boise Basin, USA. Articles  and  are the citations for STARS and SSN, respectively.