Blue list of successfully preserved or funded animal and plant species
In Switzerland, a list of animal or plant species that was once on the Red List of endangered animal and plant species and is no longer listed is called the Blue Lists of successfully preserved or promoted animal and plant species . There are several such lists. They are created regionally.
This only includes living animal species that have mostly been preserved due to targeted protection. Extinct species belong to the top group of animals on the red list (Extinct).
history
It was introduced by the Geobotanical Institute ETH Zurich (since 2006 part of the Institute for Integrative Biology in the Department of Environmental Sciences). It defines this as " directories of those red list species which have experienced a permanent population stabilization or increase in the worked area. " Therefore, a period of time must always be defined that is considered.
The benefits of species protection were unknown for a long time and could therefore be questioned by some. Therefore, a method was sought to measure the success of species conservation.
So they are intended as a psychological counterweight to the negative Red Lists. Its aim is to show the services of nature conservation.
Project of the Geobotanical Institute of the ETH Zurich
The project was started in 1980. It ran until 1995. In northern Switzerland, the cantons of Aargau , Zurich and Schaffhausen were selected, with an area of 3413 km². The method used was the same as for the Red Lists. Information from specialists, scientific literature and reports are included.
The aim was to develop a scientific method to measure success in species protection. This method was called the Blue List. In addition, the nature and environmental protection techniques that led to the stabilization or enlargement of the population should be described. Third, the new instrument should be tested in northern Switzerland .
The conclusion of the project was the proof that at least 317 species on the Red List in northern Switzerland could be stabilized or increased through species protection. Local projects had an impact on 531 other species, so that larger projects would likely put them on a Blue List.
It was concluded that Blue Lists are a useful and relatively simple tool for measuring conservation, useful for public relations . Furthermore, it is now clear that the knowledge for nature and environmental protection is available and effective.
Examples
Examples of successful species protection are:
- The middle woodpecker ( Dendrocopos medius ), whose population is still endangered, but has been stabilized by the protection of large wooded areas with oaks in northern Switzerland.
- The small orchis ( Orchis morio ), which is still endangered, has been stabilized through the regeneration of litter meadows and annual autumn mowing in northern Switzerland.
Categories
Three categories are defined for the Blue Lists:
- Delisting: d. H. the population increase is so great that the species can be removed from the red list.
- Portfolio increase: the portfolio increased, but it is not enough for a delisting.
- Permanent stock stabilization: the stock is permanently secured.
All three categories can be subdivided into sub-categories, depending on whether or not the stabilization or increase of the stand came about through the application of nature conservation and environmental protection techniques.
Web links
- Briefly summarizing poster (PDF file; 106 kB) about the ETH Zurich project
- Synopsis and summary (PDF file; 9 kB) on Blue Lists
Individual evidence
- ↑ Archive link ( Memento of the original from November 22, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ http://www.bluelist.ethz.ch/pdf_files/Poster_BL_Deutsch.pdf
- ↑ a b http://www.bluelists.ethz.ch/pdf_files/Zammlung_BL.pdf
