Christoph Dreiser

Black Forest National Park · Department for Ecological Monitoring, Research and Species Protection

National parks play an important role in protecting global biodiversity. The development and implementation of a biodiversity assessment program that enables the analysis and evaluation of biodiversity development under protection is a task of the national park administration. This paper presents the sampling design and assessment methods used for...

Das Haselhuhn (Tetrastes bonasia rupestris) ist in Baden-Württemberg vor allem aufgrund Lebensraumverlusts erloschen. Im Nationalpark Schwarzwald, Teil des EG-Vogelschutzgebiets Nordschwarzwald, entstehen derzeit durch unterschiedliche Prozesse wahrscheinlich wieder geeignete Haselhuhnhabitate in größerem Umfang. Dies wirft die Frage nach einer mög...

Most European migratory birds are broad-front migrants. In Southwest Germany the preferred migratory direction in autumn is NE to SW. If these birds encounter mountain ranges on their way, spatial concentrations of the broad-front migration appear. This phenomenon is also known from the Northern Black Forest. During the last three decades we studie...

For monitoring protected forest landscapes over time it is essential to follow changes in tree species composition and forest dynamics. Data driven remote sensing methods provide valuable options if terrestrial approaches for forest inventories and monitoring activities cannot be applied efficiently due to restrictions or the size of the study area...

As a bird species of the uplands and mountains, the Alpine Ring Ouzel is considered particularly susceptible to potential direct and indirect effects of climate change; it is now considered as critically endangered in Baden-Württemberg. In this context, we investigated changes in the species’ population size and distribution in the northern Black F...

Due to habitat degradation and a loss of food resources, the Wryneck has experienced a severe population decline in Baden-Württemberg in recent years. In contrast to this general trend, the observations of displaying Wrynecks on storm-deforested sites in the Northern Black Forest (900 to 1100 m above m.s.l.) have increased significantly since 2004...

We report the results of a complete survey of the Meadow Pipit breeding population in the Black Forest National Park area in 2015. Compared with 1995–1997, the survey documents a substantial decline from the initial 85 territories to a current number of 28. While local populations remained rather stable on historically deforested mountain tops (“Gr...

Mit diesem Beitrag möchten wir das naturwissenschaftliche Monitoringkonzept des Nationalparks Schwarzwald vor- und zur Diskussion stellen. Die Forstwissenschaftliche Tagung bietet ein exzellentes Forum da wir zusammen mit verschiedensten Forschungsinstituten die wichtigen wissenschaftlichen Fragen von heute, aber auch die von Morgen beantworten möc...

Foreword Development is continuous change. And sustainable development is development that harmonises our present needs with those of the coming generations in an economically efficient and socially fair way and under wise preservation and utilisation of the natural base of existence – our environment. Consequently, a very important task in sustain...

The map details presented here are part of a sustainable planning system based on geospatial data. The system was published as the Sustainable Development Assessment Atlas of Guyuan District. The planning system includes such planning sectors as ecosystems, agriculture, health, traffic, and tourism and comprises more than fifty maps. For each plann...

This paper introduces the approach of the Systems research Network (SysNet) for land use planning in tropical Asia with a focus on its main scientific–technical output: the development of the land use planning and analysis system (LUPAS) and its component models. These include crop simulation models, expert systems, GIS, and multiple goal linear pr...

Land use planning deals with complex issues, so planners and other decision-makers need simplified tools to help them make informed decisions about the "best use" of limited resources. Because different (often conflicting) interests exist, one of the challenges is to develop methods and tools that can illustrate possible solutions, quantify trade-o...

Using GIS technology, model results for maize fertilizer trials were extrapolated to district level in a pilot district in Kenya.

Since 1972 pictures have been clear and useful, and allow the making of digital maps at close intervals. This article refers to a dry area that is inaccessible. It describes the area, the acquisition of data, examples of maps, explains the Landsat system, the evaluation of data, the Perpendicular Vegetation Index, automatic classification (11 class...