Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\29765679
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 R+Soc+Open+Sci
2018 ; 5
(4
): 172303
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The bat-bird-bug battle: daily flight activity of insects and their predators
over a rice field revealed by high-resolution Scheimpflug Lidar
#MMPMID29765679
Malmqvist E
; Jansson S
; Zhu S
; Li W
; Svanberg K
; Svanberg S
; Rydell J
; Song Z
; Bood J
; Brydegaard M
; Åkesson S
R Soc Open Sci
2018[Apr]; 5
(4
): 172303
PMID29765679
show ga
We present the results of, to our knowledge, the first Lidar study applied to
continuous and simultaneous monitoring of aerial insects, bats and birds. It
illustrates how common patterns of flight activity, e.g. insect swarming around
twilight, depend on predation risk and other constraints acting on the faunal
components. Flight activity was monitored over a rice field in China during one
week in July 2016, using a high-resolution Scheimpflug Lidar system. The
monitored Lidar transect was about 520?m long and covered approximately 2.5?m(3).
The observed biomass spectrum was bimodal, and targets were separated into
insects and vertebrates in a categorization supported by visual observations.
Peak flight activity occurred at dusk and dawn, with a 37?min time difference
between the bat and insect peaks. Hence, bats started to feed in declining insect
activity after dusk and stopped before the rise in activity before dawn. A
similar time difference between insects and birds may have occurred, but it was
not obvious, perhaps because birds were relatively scarce. Our observations are
consistent with the hypothesis that flight activity of bats is constrained by
predation in bright light, and that crepuscular insects exploit this constraint
by swarming near to sunset/sunrise to minimize predation from bats.