Fragmentation is one of the major threats to riverine ecosystems and this is most explicitly
expressed by the decline in numbers of migratory fish species. Yet each species has …

An inventory of anthropogenic barriers to longitudinal river connectivity in Greece is
presented based on an extensive literature review. We mapped Greece's 275 major dams …

Artificial barriers are one of the main threats to river ecosystems, resulting in habitat
fragmentation and loss of connectivity. Yet, the abundance and distribution of most artificial …

The Balkan region has some of the best conserved rivers in Europe, but is also the location
of~ 3000 planned hydropower dams that are expected to help decarbonise energy …

Abstract The Paiva River is considered one of the least polluted rivers in Europe and its
watershed has a high conservation value. However, the Paiva River basin suffers pressures …

Climate change may lead to range shifts, and barriers to such displacements may result in
extirpations from previously suitable habitats. This may be particularly important in …

Biodiversity loss is accelerating because of unceasing human activity and land clearing for
development projects (urbanisation, transport infrastructure, mining and quarrying…) …

Background Fragmentation (establishment of barriers eg, hydropower dams, reservoirs for
irrigation) is considered one of the greatest threats to conservation of river systems …

More than two thirds of large rivers worldwide are fragmented, threatening freshwater
biodiversity, river integrity, and the services that freshwater ecosystems provide for human …

The longitudinal dimension of river connectivity has been significantly disrupted by barriers
to compensate for water demand in the long periods of water scarcity in the Iberian …