Bøker av P Barbosa

The abundance of insects can change dramatically from generation to generation; these generational changes may occur within a growing season or over a period of years. Such extraordinary density changes or "outbreaks" may be abrupt and ostensibly random, or population peaks may occur in a more or less cyclic fashion.

Efforts to explore ecological interactions between insects and plants across several trophic levels are presented in this book, which emphasizes the mediation of complex interaction by plant allelochemicals and traces their physiological effects in animal behaviour and population regulation.

Exploring the scope and diversity of microbial effects on plant-herbivore relationships, this book takes a "net effects" perspective throughout - elucidating the patterns in these interactions by comparing their net effects on either the plant or the herbivore.