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Publications (3)      

1. Helldin, Jan O. 2019 Predicted impacts of transport infrastructure and traffic on bird conservation in Swedish Special Protection Areas Nature Conservation 26: 1-16.
2. Helldin, Jan O. 2022 Are several small wildlife crossing structures better than a single large? Arguments from the perspective of large wildlife conservation Nature Conservation 47: 197-213.
3. Helldin, Jan O., Jörgen Wissman & Tommy Lennartsson. 2015 Abundance of red-listed species in infrastructure habitats – ”responsibility species” as a priority-setting tool for transportation agencies´ conservation action Nature Conservation 11: 143–158.