Scientific research Historical overview Monitoring Amethyst meadow squill in the Plitvice Lakes National Park Studying and monitoring crayfish in the Plitvice Lakes National Park Harvesting of non-indigenous species of fish in the Plitvice Lakes National Park Varnished hook moss in the Plitvice Lakes National Park Siberian ligularia in the Plitvice Lakes National Park Lady’s slipper in the Plitvice Lakes National Park Beaver in the Plitvice Lakes National Park12