| [microbial nitrogen fixation in the gastro-intestinal tract of kalmykia gerbils (meriones. tamariscinus and meriones meridianus)]. | the nitrogen-fixing activity, nitrogen (n) and carbon (c) contents, and the number of microorganisms in the forestomach, cecum, and segmented intestine were detected in two gerbil species, granivorous meriones meridianus and m. tamariscinus, which consume a large amount of green parts of the plants. m. meridianus had higher levels of nitrogen-fixation activity in all investigated parts of the gastro-intestinal tract compared with m. tamariscinus. the highest levels were detected in the colon of ... | 2010 | 21077365 |
| [biotope distribution of two gerbil species (meriones meridianus and m. tamariscinus) (rodentia, gerbillinae) in southern kalmykia]. | our studies have been conducted in southern kalmykia (black lands) in 1994-1996. the data obtained on the same territories in 1981-1983, as well as in 1997-1998 were used for comparison. over the studied period, the size of meriones tamariscinus population underwent a significant increase. in the early 1980s, the colonies of this species were found only on sandy dunes covered with tamarix. at the present time, m. tamariscinus populations have spread over stabilized sands, abandoned shepherd camp ... | 2016 | 10881433 |