Aukštadvaris
We carried out bat counts and bat mapping in Aukštadvaris Regional Park (southeastern Lithuania) in August 2005 and 2011. The results of the first study were published (Masing & Baranauskas, 2011).
Fig. 1. Main sites of study in two main habitat types in Aukštadvaris area in August 2005.
Fig. 2. Finding places of relatively rare bat species in Aukštadvaris area in August 2005.
Helsinki
Yrjö Siivonen made the first bat survey of Helsinki (Finland) in summer 2003 (Siivonen, 2004). Now we are planning the next bat survey in Helsinki, and additional surveys in other towns of Finland.
Fig. 3. Southern coast at Seurasaari, a famous bat site in Helsinki. (photo by Matti Masing, 2011)
Fig. 4. Viikki-Vanhankaupunginlahti Bay in Helsinki, a bat site in a nature reserve. (photo by Matti Masing, 2011)
Kaunas
The counts of hibernating bats were carried out in Kaunas Fortress (Lithuania) during 1978, 1979 and 1980 (Masing & Buša, 1983; Masing, 1984). In January 2007 we made a more detailed study the results of which were also published (Masing, Baranauskas, Siivonen & Wermundsen, 2009).
Fig. 5. Map of Kaunas Fortess showing nine forts, and bunkers 9A and 9B. (from Masing et al., 2009)
Fig. 6. Fort 1 in Kaunas in January 2007. (photo by Matti Masing)
Fig. 7. A pile of 24 Barbastelles hibernating on the wall of bunker 9B in Kaunas in February 1979.
(16 animals are visible here; photo by Matti Masing)
Fig. 8. Members of our team searching bats in underground tunnels of Kaunas Fortress in January 2007. (photo by Matti Masing)
Fig. 9. Two individuals of Eptesicus serotinus hibernating in a wall hole in Kaunas Fortress in February 1979. (photo by Matti Masing)
Oslo
We carried out bat counts in Oslo area (Norway) in July 2008 and 2009. During this research we revealed threatened bat populations requiring special protection measures to survive. Now we are ready to prepare a report on this study for Oslo community.
Pskov
Bat counts and bat mapping were carried out in Pskov (European part of Russia) in mid-August 2006. Part of the results were published (Chistyakov, Masing & Bogdarina, 2010). A summary of the results is given below.
Fig. 10. Map of Pskov showing 12 counting points established on riverbanks. During two nights in August 2006, eight bat species were found in this area.
Table 1. Results of night-time bat counts received from twelve 15-min counting points in Pskov in August 2006. A Pettersson D240 detector was used to count and identify bats. Sound samples were taken to analyse bat calls for species identification. (Masing, Chistyakov & Bogdarina, in prep.)
Study area
|
Habitat
|
Place
|
Point number
|
Start of count
(time)
*
|
Duration of count
(min)
|
Total bat flight minutes,
(BFM)**
|
Pskov
|
Riverbank, open
|
Velikaya river
|
1
|
00.58
|
15
|
2En, 1Md, 1Plsp, 1Pn, 1sp24
|
Pskov
|
Riverbank, open
|
Velikaya river
|
2
|
01.28
|
15
|
4En, 3Md, 1Nn
|
Pskov
|
Riverbank, open
|
Velikaya river
|
3
|
03.47
|
15
|
6En, 10Md, 7Mds, [Mn]
|
Pskov
|
Riverbank, open
|
Velikaya river
|
4
|
04.28
|
15
|
4Md
|
Pskov
|
Riverbank, open
|
Pskov river
|
5
|
02.40
|
15
|
5En, 16Md, 15Mds, 1Pn
|
Pskov
|
Riverbank, open
|
Pskov river
|
6
|
03.05
|
15
|
8En, 8Md, 11Mds, 1Nn
|
Pskov
|
Riverbank, open
|
Pskov river
|
7
|
02.09
|
15
|
3En, 6Md
|
Pskov
|
Riverbank, open
|
Pskov river
|
8
|
02.33
|
15
|
3En, 9Md, 3Mds, 1Mn, 1Nn, 2Plsp
|
Pskov
|
Riverbank, open
|
Pskov river
|
9
|
03.02
|
15
|
3En, 18Md, 1Vm
|
Pskov
|
Riverbank, open
|
Pskov river
|
10
|
03.31
|
15
|
5Md, 1Msp42-43
|
Pskov
|
Riverbank, open
|
Pskov river
|
11
|
04.01
|
15
|
3En, 2Md, 2Nn, 1Pn, 5sp24-28
|
Pskov
|
Riverbank, open
|
Pskov river
|
12
|
04.31
|
15
|
1Md, 5Nn, 4sp27-28
|
Pskov total
|
185 BFM
|
1-12
|
12
|
180
|
37 En, 83 Md, 36 Mds, 1 Mn, 10 Nn, 3 Plsp, 3 Pn, 1 Vm, 1 Msp, 10 sp, [Mn]
| |
Pskov,
BPPH
***
|
Count per 60 min
|
12.3 En, 27.7 Md, 12.0 Mds, 0.3 Mn, 3.3 Nn,1.0 Plsp, 1.0 Pn, 0.3 Vm, 0.3 Msp, 3.3 sp, [Mn]
|
* local summertime (zone time plus 1 hour)
** abbreviation of species' names: En – Eptesicus nilssonii, Md – M. daubentonii, Mds – Myotis dasycneme, Mn – M. nattereri, Nn – Nyctalus noctula, Plsp – Plecotus species (probably, auritus), Pn – Pipistrellus nathusii, Vm – Vespertilio murinus, Msp31-38 – Myotis species with peak frequency on 31-38 kHz, sp24-28 – Chiroptera species with peak frequency on 24-28 kHz, [Mn] – M. nattereri in Kremlin yard
*** BPPH (count per 60 min) – bat passes per hour (presence of bats during 1-min intervals, cumulative mean of data collected from 12 counting points)
Bats identified on the basis of sound from counts in Pskov, 14/15 and 17/18 August 2006 (total count at 12 points was 180 min, Pettersson D240 detector, peak frequencies are given in brackets)
Myotis dasycneme (37-41 kHz)
Myotis daubentonii (30-44 kHz)
Myotis nattereri (43-46 kHz, 20-31 kHz)
Pipistrellus nathusii (ca 40 kHz)
Eptesicus nilssonii (27-33 kHz)
Vespertilio murinus (26-30 kHz)
Nyctalus noctula (20-21 kHz)
Plecotus species (probably _auritus_) (ca 25-30 kHz)
The following animals were not identified on species level
Chiroptera species: 24-27, 27-28, 27-28 kHz
Myotis species: 42-43 kHz
