of the main predators of the collared pika found in south-central Alaska is the stoat, but martens, weasels, foxes, eagles, coyotes, and various birds also contribute to predation. Collared pikas have also been found to be the victims of parasitism by fleas and parasitic helminthes, including some species of Sarcocystis, which have been found in their striated muscles. Conservation riskO. collaris'' has been classified as of least concern for conservation status according to the IUCN Red List of Threatened Species, yet as said by the Status of Endangered Wildlife in Canada, as a result of collared pikas inhabiting areas with fast climate changes and their sensitivity to climatic variation, they are considered of special concern. Currently, no actions are being taken to preserve this species, and no threats have been acknowledged against this species. Nevertheless, the collared pika may be susceptible to the negative effects of climate change, and some investigation should be instigated to monitor the negative effects of the new unlimited, year-round hunting rules that allow for the hunting of collared pikas. References Pikas Mammals of North America Mammals described in 1893 Taxa named by Edward William Nelson