@techreport{oai:soar-ir.repo.nii.ac.jp:00017007,
 author = {酒井,  秋男 and 上田,  五雨 and 柳平,  坦徳 and 竹岡,  みち子 and 野村,  達次 and 勝,  国奇 and 張,  彦博},
 month = {Mar},
 note = {Pika (the genus Ochotona)， paleontologicallyproved to be extremely primitive， is one of native high altitude species and the distribution ranged widely from low to high altitudes (about 10-6，l00m above sea leveD. In August 1986， we captured the Pikas at Qinghai areas in China，2 ，300 m (n =1 3)，3 ，300m (n =1 5)，a nd 4.460 m (n = 14) above sea level and measured some hemodynamic parameters in captured places. In August 1987， we used the low-altitude Pikas (alt 650m， n=10) which had been imported from France to Japan in 1974 and were bred by a Japanese animal company. We measured the pulmonary artery pressure (PPA)， right ventricular weight ratio (RVW /L VW) as an index of the right entricularhypertrophy， number of red blood cell (RBC)， mean cell volume (MCV)， hamatocrit (Ht)， blood viscosity， red cell def ormability and theoxygenconsu mption (V02) in the low altitude Pikas. The values were compared with those of rats. The results were as follows : 1) The PPA， RVW/LVW and Ht in Pika showed significantly low values compared with those of rats in all altitude ranges 2) The PPA， RVW/LVW and Ht values increased with altitudes in both Pika and rat，b ut the extents of increase with altitude in Pikas was respectively less than that of rats. 3) By comparing the low-alltitude Pikas with rats，the values of PPA，R VW/LVW，Ht. MCV，b lood viscosty，a nd VO2 in Pika were shown to be lower than those of rats. The differnces werestatisticallysiginificant. although no difference was found in RBC and red cell deformability Conclusion: The low-altitude pikes also indicated some signs of high -altitudeadaptatlOn, Article, 信州大学環境科学論集10:1-6(1988)},
 title = {チベット高地に生息するPika（ナキウサギ）の高地順応特性について},
 year = {1988}
}