Contribution to understanding the origin and the genesis of the Nišava riverside valley fauna

Jaksic, P., Momirovic, M.: Contribution to understanding the origin and the genesisof the Nisavariverside valley fauna. Biologica Nyssana, 1 (1-2), December 2010: 123-130. The fact that very early biologists registered an extraordinary faunistic richnes in the greater area of Nis(Nisava’s riverside) is pointed out. The conditions that contributed to this variety are analyzed. Theimportance of geological history of this region is explained, from the ancient lakephase trough the glacialepochs including the present state. The dilemma about lake terraces and the water level of the Neogenelakesystem is discussed. A list of gorges, speleologicalobjects, springs, mountain tops as habitats of endemic andrelict species is given. All the endemic and relict species in these habitats are listed. Key words : FaunaOrigin, Fauna Genesis, Nisava Riverside, Serbia