The phylogeographic predictions of the strict cospeciation and episodic host-switching models were tested using the North American pika/parasite assemblage, with a primary focus on the American pika, Ochotona princeps (Richardson, 1828), and a suite of its endoparasitic cestodes and nematodes.
Key words: comparative phylogeography, co-evolution, host-switching, historical demography, Ochotona princeps, Pleistocene
flying squirrel (Glaucomys salmnus) 1 Unknown Sciuridae 5 Muridae 1 1% 8 9% Erethizontidae 1 1% Porcupine (Erithizon dorsatum) 1 Unknown Rodentia 4 5% Leporidae 2 3% Snowshoe hare (Lepus americanus) 2 Ochotonidae 2 3% 2 2% Pika (Ochotona princeps
) 2 2 Phasianidae 3 4% Corvidae 1 1% 1 1% Canidae Mustelidae 1 1% Summer Fobs (n = 24) Scat (n = 10) Family/Species No.
Seasonal changes in activity patterns and the adaptive value of haying in pikas (Ochotona princeps).
Kleptoparasitism in pikas (Ochotona princeps): Theft of hay.
Related to rabbits, American pikas (Ochotona princeps
) live in rocky, high-elevation habitats in the western mountains of North America.
North American pikas (Ochotona princeps
), small mammals belonging to the Order Lagomorpha, inhabit rocky, talus slopes above the tree line throughout western North America.
I tested the toxin-reduction and enhanced preservation hypotheses with the North American pika (Ochotona princeps: Lagomorpha).
Factors governing diet selection in a herbivorous mammal, the North American pika, Ochotona princeps. Dissertation.