Speckled Ground Squirrel

The speckled ground squirrel has dark-brown fur with white spots on its back and a short, thin tail. It grows to a length of 25 cm (10 in) and a weight of 280 g (10 oz). Its dental formula is 1.0.2.31.0.1.3. It is smaller and less social than many other ground squirrels of the genus Spermophilus.

It is found in Belarus, Moldova, Poland, European Russia, and Ukraine. Its natural habitat is temperate grassland and it is also found on cultivated ground. It is threatened by the loss and fragmentation of its habitat. Causes of habitat loss include the expansion of agriculture and forestry, the reduction of pasturing, the development and growth of cities, and industrial development. Also, in some areas it is hunted as an agricultural pest. The speckled ground squirrel's range in Poland and southern Russia has contracted markedly, with only 10% of its area in the mid-twentieth century currently remaining. At the current rate of contraction of its range, the speckled ground squirrel will soon be extirpated from Poland.

The speckled ground squirrel is a diurnal species which hibernates from October to April. It is active in the morning once the sun warms the area slightly, retreats to its underground den during the heat of the day, then reemerges late in the day for another feeding bout. It feeds mostly on grasses and cereals, although small vertebrates and arthropods are also eaten. Compared with other Spermophilus species, it lives in a relatively closed habitat with high grasses that block visibility during its active seasons. Individuals live in separate burrows within a larger colony. These colonies can be up to over 160 individuals per ha. It mates between April and May. Gestation ranges from 23 to 26 days. Four to eight cubs are born per litter. Sporadic hybridization occurs where S. suslicus occurs sympatrically with the little (S. pygmaeus) and European ground squirrels (S. citellus).