Wyniki wyszukiwania:

Ecology has long been shaped by ideas that stress the sharing of resources and the competition for those resources, and by the assumption that populations and communities typically exist under equilibrium conditions in habitats saturated with both individuals and species. However, much evidence contradicts these assumptions and it is likely that nonequilibrium is much more widespread than might be expected. This book is unique in focusing on nonequilibrium aspects of ecology, providing evidence for nonequilibrium and equilibrium in populations (and metapopulations), in extant communities and...

The first edition of this book, published in 1982 by the University of Queensland Press, established itself as the main introductory textbook on marine parasitology. The second edition has been revised to take account of recent advances and includes an additional chapter on the structure of marine parasite communities. There are also new sections on pollution, translocations of hosts and parasites, and on the effects of parasites on the aquaculture of marine fish, molluscs and crustacea. The chapters covering ecological, zoogeographical and economic aspects have also been significantly...

Ecology has long been shaped by ideas that stress the sharing of resources and the competition for those resources, and by the assumption that populations and communities typically exist under equilibrium conditions in habitats saturated with both individuals and species. However, much evidence contradicts these assumptions and it is likely that nonequilibrium is much more widespread than might be expected. This book is unique in focusing on nonequilibrium aspects of ecology, providing evidence for nonequilibrium and equilibrium in populations (and metapopulations), in extant communities and...

It is clear that nature is undergoing rapid changes as a result of human activities such as industry, agriculture, travel, fisheries and urbanisation. What effects do these activities have? Are they disturbing equilibria in ecological populations and communities, thus upsetting the balance of nature, or are they enhancing naturally occurring disequilibria, perhaps with even worse consequences? It is often argued that large-scale fluctuations in climate and sea-levels have occurred over and over again in the geological past, long before human activities could possibly have had any impact, and...

Das Fitness-Programm für deine FinanzenViele Stunden Arbeit in die Planung der eigenen Finanzen investiert und dennoch nicht sicher, alle Details berücksichtigt zu haben? Das ist wie Fitness-Training ohne Plan.Die neue DIN-Norm »Basis-Finanzanalyse für Privathaushalte« ist der Trainingsplan für deine Finanzen. Mit ihren klaren und übersichtlichen Kriterien kannst du deinen finanziellen Status ermitteln und feststellen, wo Handlungsbedarf besteht: Fehlt beispielsweise eine wichtige Versicherung? Betreibst du ausreichend Vorsorge, um deinen Lebensstandard im Alter zu halten? Wie viel...