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Table 2 Changing numbers (N) of soprano pipistrelles in a bat box with ambient temperature (°C)

From: Activity patterns of the soprano pipistrelle Pipistrellus pygmaeus throughout the year in southern Norway

Date

N

°C

Sound

21 Dec

5–7

7.0

 

22 Dec

  

5

23 Dec

7

4.5

2

26 Dec

2

−2.2

 

27 Dec

2

2.8

 

28 Dec 10 h

3–4

3.9

 

28 Dec 23 h

4–5

6.4

 

29 Dec

5–6

9.8

4

31 Dec

  

3

1 Jan

5–6

4.5

1

2 Jan

7

6.8

 

4 Jan

7–10

−0.4

 
  1. Winter recordings made from 21 December 2019 to 4 January 2020 in Frafjord, SW Norway. The ambient temperature was recorded about 8 m from the box at the time of counting. Sound is the number of minute intervals during which echolocation of flying pipistrelles were recorded by the data-logger
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BMC Zoology

ISSN: 2056-3132

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