Teichfledermaus
Myotis dasycnemeTrend
Uncertain
Insufficient data!
Insufficient data!
Numbers
Based on a total of 398 visits from 7 sources in 22 sites.
Teichfledermaus
Myotis dasycnemeTeichfledermaus
The pond bat is a rare, medium-sized bat that bears a strong resemblance to the smaller Daubenton's bat (Myotis daubentonii) and, like the latter, has conspicuously large feet with long bristles.
habitat description
Wooded areas with large lakes and rivers, e.g. northern German lowlands. But also hibernates in the mountains.
quarters
Maternity roosts (approx. 50 - 300 animals) in attics of churches and barns, as well as tree hollows. Migrates partly in autumn up to 300 km to mountain ranges, where they hibernate in caves and tunnels before flying back in March.
reproduction
About first half of June birth of young, which are ready to fly after about 30 days. Mating somewhat August to September. Young become sexually mature in 2nd year of life.
size
- Head-torso length: 52-65 mm
- Forearm length: 43-49 mm
- Wingspan: 240-300 mm
weight
14–20 g
color/fur
dense, relatively long on the back. Upper side grayish with silky sheen. Underside whitish to yellowish gray. All hairs bicolored with black base.
nose shape
typical "tube-like" nostrils
ear shape
- Outer edge of ears without indentation.
- Tragus short
- Narrows only slightly upwards with slight inward bend
wing shape
Long, broad. Arm flight skin attaches to heel. Tip of tail extends slightly above caudal flight skin. Underside of tail flight skin along lower leg slightly hairy.
flight
Brisk, agile. Cover long distances (up to 10 km) to hunting grounds to which they fly along ditches over fixed routes. Hunt over ponds and lakes, over meadows and fields, in parks.
ultrasonic calls
Nearly linear frequency modulation with start frequencies of 65-85 kHz and end frequencies at 25-35 kHz. Main frequency at 36-41 kHz. Dry, often irregular calls. In between, single, low-frequency calls (main frequency at 36-41 kHz) and considered a reliable identification feature.
endangerment
Probable decline in population density.
IUCN (2016): Near Threatened
Red List of Germany (2020): Endangerment of unknown extent
© Marcus Fritze
© Christian Giese
© Marcus Fritze
© Christian Giese
