This is an open access book. This professional volume provides scientific background and practical guidance on forest management in light of ecological connectivity.Readers will gain a great understanding of shifting species in response to climate change and the resulting loss of various resources.The main drivers of these variations are the quality of the availability, quantity, and quality of habitats in the landscape, the genetic diversity of species populations, and the ability to navigate through a fragmented landscape matrix.The connectivity of habitats is gaining importance in the combat of both, the biodiversity crisis and the climate change crisis. Improving ecological connectivity, however, does not automatically benefit all species, as the examples described in the book demonstrate.Specific planning tools, active monitoring protocols, and management measures are needed to increase the benefit for species with low dispersal and small population size, which generally fail to migrate.Assisted migration can help to prevent species extinction, but also offer opportunities for pathogens to cross geographical barriers. The vast majority of the known diversity of plants, fungi, vertebrates, and invertebrates depends on forest ecosystems.This volume helps to spread this message and prepare students for their later careers in the forestry sector, while also informing active practitioners and policy makers.