Galanthus number of species are on the IUCN Red List of threatened species, with the conservation status being "G. trojanus" as critically endangered, four species vulnerable, "G. nivalis" is near threatened and several species show decreasing populations. "G. panjutinii" is considered endangered. One of its five known sites, at Sochi, was destroyed by preparations for the 2014 Winter Olympics. "Galanthus" species and cultivars are extremely popular as symbols of spring and are traded more than any other wild-source ornamental bulb genus. Millions of bulbs are exported annually from Turkey and Georgia. For instance export quotas for 2016 for "G. elwesii" are
Chlamydomonas nivalis have been found on the surface of "C. nivalis" cysts. The unknown bacteria were not detected in control samples that did not contain "C. nivalis" which strongly suggests that it must be associated with the algae. Another bacterium, "Mesorhizobium loti", was found as contamination in a "C. nivalis" culture, but further testing suggested that this bacteria may be synthesizing vitamin B12 for the algae. In cryoconite holes "C. nivalis" can be found among bacteria, virus-like particles, ciliates, and Chlorophyte species. Ice worms have also been found to live preferentially under "C. nivalis" in glaciers, possibly using the algae as a