Universiteit Leiden

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Proefschrift

Towards an effective biodiversity conservation and governance in the Pontocaspian region

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known as the PC biota.

Auteur
Gogaladze, A.
Datum
30 november 2021
Links
Thesis in Leiden Repository

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known as the PC biota. The current status and trends in PC biodiversity are poorly known, however, deterioration of PC habitats is evident in the Black Sea and Caspian Sea Basins. This thesis aims to support an establishment of effective PC biodiversity conservation regime. I use the Black Sea Basin as a study system and outline current status and trends in PC biodiversity and assess the direct and indirect anthropogenic drivers of the PC biodiversity change. I show that PC biodiversity is severely declining as a result of human action. Identified direct drivers of decline include damming of rivers; habitat modifications; pollution and eutrophication; invasive alien species and climate change. Indirect drivers of PC biodiversity decline include current suboptimal legal arrangements, inadequate institutional design of environmental stakeholder organizations and non-inclusive governance systems, as well as the limited funding availability for PC biodiversity conservation, institutional instability and low recognition of the need for PC biodiversity conservation.

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