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A Milestone for the Orheiul Vechi Reserve: Barbastelle Bat Identified
Biologists have recently confirmed the presence of the Barbastelle bat (Barbastella barbastellus), a species extremely rare in Moldova, within the Orheiul Vechi Reserve. This discovery marks a first for the protected area, as the species had previously been documented in the country exclusively within the Saharna site. Classified as critically endangered and included in the Red Book, this small mammal serves as a biological indicator of forest ecosystem health. Its presence in Orheiul Vechi highlights the significant ecological value of the local forests, which provide vital natural habitats for its survival
Biology and Life Cycle
The Barbastelle bat is a remarkably adapted mammal, measuring 47–54 mm in length and weighing a modest 6–13 g. The species relies heavily on mature forest ecosystems featuring old, hollow trees, though it primarily utilizes stone mine galleries, caves, and rock crevices as secure hibernation sites. Its life cycle is equally fascinating: mating occurs toward the end of summer, often in harems consisting of one male and up to four females. Between May and June, females give birth to one or two pups, which they nurse for six weeks. During the summer, females gather in small maternity colonies of 10–20 individuals within tree hollows, while males tend to lead solitary lives. An agile hunter, the bat begins its activity at dusk, flying swiftly close to vegetation to prey on moths, dipterans, and small beetles, and can reach a lifespan of up to 23 years.
These underground tunnels provide the ideal microclimate for the Barbastelle bat to hibernate.
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