| comparative anatomical and neurohistological observations on the tongue of japanese pika. (ochotona hyperborea yezoensis, kishida). | | 1966 | 5922497 |
| species of coccidia (apicomplexa: eimeriidae) infecting pikas from alaska, u.s.a. and northeastern siberia, russia. | eighty-eight fecal samples from 2 species of pika, ochotona collaris and ochotona hyperborea, collected in alaska (n = 53) and russia (n = 35), respectively, were examined for the presence of coccidia (apicomplexa: eimeriidae). five oocyst morphotypes were observed. in o. collaris, we found eitmeria calentinei, eimeria cryptobarretti, and eimeria klondikensis, whereas in o. hyperborea, we found eimeria banffensis, e. calentinei, e. cryptobarretti, e. klondikensis, and isospora marquardti. this s ... | 2007 | 18163366 |
| diversity of diazotrophic gut inhabitants of pikas (ochotonidae) revealed by pcr-dgge analysis. | diazotrophic gut symbionts are considered to act as nitrogen providers for their hosts, as was shown for various termite species. although the diet of lagomorphs, like pikas or rabbits, is very poor in nitrogen and energy, their fecal matter contains 30-40% of protein. since our hypothesis was that pikas maintained a diazotrophic consortium in their gastrointestinal tract, we conducted the first investigation of microbial diversity in pika guts. we obtained gut samples from animals of several oc ... | 2015 | 25842897 |
| ohbayashinema abei sp. n. (nematoda: heligmosomidae) from the northern pika, ochotona hyperborea pallas, in hokkaido, japan. | | 1986 | 3820905 |
| two cases of adiaspiromycosis in the japanese pika (ochotona hyperborea yesoensis kishida). | | 2013 | 3981833 |
| pseudogenization of ccl14 in the ochotonidae (pika) family. | the interaction between chemokines and their receptors is crucial for inflammatory cell trafficking. ccl14 binds with high affinity to ccr5. in leporids, ccr5 underwent gene conversion with ccr2. the study of ccr5 ligands in leporid species showed that ccl8 is pseudogenized, while ccl3, ccl4 and ccl5 are functional. here, we study the evolution of ccl14 in mammals with emphasis in the order lagomorpha. by employing maximum likelihood methods we detected six sites under positive selection. some o ... | 2015 | 25817712 |
| [on the peculiar structure of the large intestine of ochotona hyperborea yesoensis]. | | 1963 | 14186454 |