Saxicolous Mouse

Bottego’s White-toothed Shrew

Common Name: Bottego’s White-toothed Shrew
Scientific Name: Sorex etruscus

Habitat: Bottego’s White-toothed Shrew is primarily found in the humid forests of the Caucasus region, particularly in parts of Georgia and Azerbaijan. This species favors moist, densely vegetated areas that provide ample cover and food sources. It thrives in both temperate and subtropical zones, often inhabiting leaf litter and underbrush.

Physical Characteristics: This small mammal typically measures around 8 to 10 cm in length, with a tail that is slightly shorter than its body. Bottego’s White-toothed Shrew features a distinctive pale underbelly and striking white incisors, from which it derives its common name. Its fur is generally dark brown or gray, providing excellent camouflage in its natural habitat. Noteworthy characteristics include its elongated snout and small, beady eyes, which enhance its sensory perception in low-light environments.

Behavior: Bottego’s White-toothed Shrew is primarily nocturnal, exhibiting activity during twilight hours and nighttime. It is known for its agile movement, allowing it to navigate through dense foliage with ease. This species is solitary and territorial, often marking its habitat with scent. Additionally, it engages in a variety of vocalizations, from high-pitched squeaks to chirps, which facilitate communication with potential mates or warn rivals of its presence.

Diet: The diet of Bottego’s White-toothed Shrew is predominantly insectivorous, consisting mainly of insects, worms, and other small invertebrates. It may also consume small amounts of plant matter. Its intense foraging behavior and high metabolic rate require it to consume large quantities of food relative to its body weight daily, making it a significant consumer in its forest ecosystem.

Reproduction: Bottego’s White-toothed Shrew typically breeds in the spring, with females capable of producing one to two litters per year. Each litter typically comprises three to six offspring. The young are altricial (born in a relatively undeveloped state) and begin to explore their surroundings after a few weeks. Parental care is mostly provided by the female until the young shrews are independent.

Conservation Status: Currently, Bottego’s White-toothed Shrew is listed as “Endangered” due to habitat loss and degradation caused by human activities such as agriculture and urban expansion. Conservation efforts are vital to ensure the survival of this unique species and its habitat.

Interesting Facts: Bottego’s White-toothed Shrew exhibits an exceptional adaptation for thermoregulation, allowing it to survive in cooler environments. Interestingly, they have been observed engaging in a behavior called “stone rolling,” where they manipulate small stones, likely to create shelters or look for food beneath them.

Role in Ecosystem: As an insectivore, Bottego’s White-toothed Shrew plays a critical role in controlling insect populations, contributing to the ecological balance within its habitat. Its presence supports the food web, serving as prey for various predators, including birds of prey and small mammals. Preserving this species is essential for maintaining the health of the forest ecosystems where it resides.