Auswirkungen landnutzungs- und klimawandelbedingter Umweltveränderungen auf Tierarten und naturschutzfachliche Handlungsoptionen [article]

Janine Sybertz, Aletta Bonn, Michael Reich, University, My, University, My
2020
The conservation of biodiversity is a task of great importance for society. In recent decades, political awareness for biodiversity issues has risen, yet, global as well as national objectives to halt the loss of biodiversity have failed. Important causes of biodiversity loss include land use change as well as climatic changes. From the second half of the twentieth century, agricultural intensification has increasingly led to a decline of farmland biodiversity. This decline is caused by a
more » ... s caused by a multitude of factors, particularly a loss of semi-natural habitats and structural diversity as well as a shortage of food supply due to a usage of herbicides and insecticides. Since the end of the twentieth century, climatic changes have increasingly become apparent as another threat to biodiversity. Along with increasing temperatures, shifts of distribution ranges as well as in the phenology of species have already been observed. By the end of the 21st century, further increasing mean temperatures, an increase of hot extremes, a decrease of cold periods, a shift in annual precipitation regimes and a further rise of sea levels can be expected. Climate and land use interact in a variety of ways - as do their effects on species and overall biodiversity. Thus, methods to capture and evaluate the effects of land use and climatic changes on species, and measures to prevent or mitigate the impacts, are greatly needed. Important stakeholders for the implementation of such measures are nature conservation authorities and organisations. However, protecting farmland biodiversity also requires the involvement of farmers to ensure sustainable and long-term effects. One way to involve farmers in nature conservation programs is to address the food companies they supply their products to. Food companies, especially from the organic sector, are increasingly looking for ways to transparently and credibly communicate to their customers how farmers (the suppliers) preserve and enhance biodiversity on their land. As company-wide biodiversity survey [...]
doi:10.15488/9382 fatcat:wifzvldyc5bibpme7zdmyuoiqu