Ecosystem health offers a fresh perspective on the management of natural
resources and the environment. While some of the root concepts can
surely be traced back to Aldo Leopold and even earlier, it is only in
the recent decade that a substantial body of work has emerged on this
topic. There is no question that a novel approach which is by its nature
cross- disciplinary, bridging the health and biological sciences, will
initially raise a number of questions particularly pertaining to the use
of metaphors and the validity of the analogy. This volume however goes
beyond merely the philosophical dimensions of the subject by covering a
number of case studies which have given rise to the development of
promising quantitative methods for diagnosis and rehabilitation of
ecosystems under stress. The focus of most studies is on regional
ecosystems i.e. ecosystems of large scale. As such, the methods and
approaches should have wide appeal to government agencies charged with
the responsibility of sustainable development of regional ecosystems and
natural resources. Health is one of those difficult concepts that
everyone thinks they can define, until they come to try. We all have
personal knowledge about health and illness and this makes the ecosystem
analogy so potentially powerful. Yet it is also clear that the
uncritical application of the concept could lead to overly simplistic
approaches to analysis and management of ecosystem health.