Seabird Energetics formatIsbn:Softcover 9781468448610 The area of hardware design formatIsbn:Softcover 9783322981196 The area of hardware design has traditionally been a fertile field for research in concurrency and Petri nets September 20 Wynne Edwards linked these two as part of his attempt to understand the mechanism of the regulation of animal populations in his book "Animal Dispersion in Relation to Social Behaviour" (1962) The complex interactions between social behaviour and ecology then received more attention and the sixties and seventies brought a flood of papers on ecology and on some social aspects of breeding ecology