Current Red Lists for the Canton of Basel-Stadt

The canton of Basel-Stadt is home to an impressive diversity of species that has been preserved thanks to its special geographical location and diverse habitats. However, many of these species are severely threatened by environmental changes, increasing land sealing and climate change. Red Lists are an indispensable tool in nature conservation for monitoring the population of native flora and fauna and enabling targeted conservation measures. They document the endangered status of individual species and provide a valuable basis for the implementation of nature conservation measures. They enable targeted conservation measures to be taken and also take regional particularities into account.

The canton's first Red Lists were published in 2000, but since then the endangered status of many species has changed due to environmental changes and climate change. Around 25 years later, they have therefore been updated with current data, including records from the nature inventories (NIBS I and II). In total, the classifications for 13 species groups have been updated.

The Red Lists cover the species groups that are important in connection with nature conservation and water protection projects: Vascular plants, bats, breeding birds, reptiles, amphibians, fish, butterflies, grasshoppers, dragonflies, mayflies, stoneflies, caddisflies, molluscs

They show: Many species are still under threat. 58 % of vascular plants and 44 % of animal species are considered endangered or extinct. The results emphasise the urgent need for action to protect the existing rare species. Species that depend on specific habitats, such as wetlands or semi-natural green spaces, are particularly affected.