The activity of the greater mole-rat was studied using a new technique. New data have been obtained on the characteristics of the daily and seasonal underground life of mole-rats in an isolated population in Mordovia. Polyphase daily activity is most pronounced in the spring and early fall periods. In spring, the maximum activity (about 20% of all daily registrations in separate hours) is confined to the periods from 8:00 to 9:00 a.m. and from 3:00 to 4:00 p.m. The peak of activity in the early fall was recorded from 9:00 to 10:00 a.m. At night, the activity of animals in different seasons was stably low. The burrowing activity, as a rule, began after midnight and stopped in the morning before 5:00 a.m. The maximum duration of the dormancy period in the evening in summer months was five hours. Statistically significant differences were obtained for the average number of passages of mole-rats in the burrow per day for different months using the Mann‒Whitney criterion (p < 0.05).
Andreychev A.V. Daily and seasonal feeding activity of the greater mole-rat (Spalax microphtalmus, Rodentia, Spalacidae) // Biology Bulletin. 2019. V. 46. № 9. P. 1172–1181.

The article presents the characteristics of the ground daily and seasonal activity of the local steppe marmot populations scattered in the north of the area in central part of European Russia. Revealed the alternation of single-phase and two-phase loops terrestrial activity Marmota bobak during the spring-summer period. For April and June marked single-phase active and revealed a biphasic activity for May, July and August. On average, marmots come out of the holes in the morning 28 minutes after sunrise. They hide in burrows marmots in the evenings, on average 1 hour 16 minutes before sunset.
Andreychev A., Zhalilov А. Daily and seasonal activity patterns in steppe marmot (Marmota bobak, Sciuridae, Rodentia) in central part of European Russia // Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2017. 8(2). P. 787–794.

Дана характеристика аборигенных и реакклиматизированных локальных популяций степного сурка (Marmota bobak) в Мордовии с привязкой к географическим координатам. Оценены численность и плотность населения. Определены темпы и приоритетные направления расселения. Спустя 28 лет после реакклиматизации сурков в регионе они распространились в среднем на 19.5 км от мест выпуска, при этом среднее значение темпов расселения 0.7 км в год. Размеры семейных участков животных варьируют от 0.4 до 11.5 га, при среднем значении на семью – 2.3 га. В качестве факторов, определяющих динамику развития локальных популяций, выступают природные субоптимальные условия региона, время существования реинтродуцированных колоний и браконьерство.
Андрейчев А.В., Жалилов А.Б., Кузнецов В.А. Состояние локальных популяций степного сурка (Marmota bobak) в Республике Мордовия // Зоологический журнал. 2015. Т. 94. № 6. С. 723–730.