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Journal of Mammalogy, 84(2):571578, 2003 A NEW SYSTEM FOR AUTOMATIC RADIOTRACKING
 

Summary: 571
Journal of Mammalogy, 84(2):571≠578, 2003
A NEW SYSTEM FOR AUTOMATIC RADIOTRACKING
OF SMALL MAMMALS
THOMAS BRINER,* JEAN-PIERRE AIROLDI, FRITZ DELLSPERGER, SIMON EGGIMANN, AND
WOLFGANG NENTWIG
Zoological Institute, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland (TB, J-PA, WN)
Institute of Engineering and Architecture, University of Applied Sciences, Bern,
Morgartenstrasse 2c, 3000 Bern 22, Switzerland (FD, SE)
We developed a radiotracking system for automatic and continuous data collection, which
allows the radiotracking of several animals at the same time. Based on a system controller,
3 fixed antennas, and small-size radiotransmitters ( 2 g, 14 by 12 by 4 mm), the system
has the capacity to record several individuals continuously at intervals of 5 min. Antennas,
positioned at fixed points in the field, forward the signals from tagged animals to the system
controller, where data are collected. The coordinates of the individual's locations are cal-
culated through triangulation on the basis of the angles of incidence from the transmitter
signal to each antenna. Transmitters are individually identified by the chronological se-
quence of their signals. Field tests with Microtus arvalis show the utility of the new tech-
nique and possibilities for the system.
Key words: automatic system, continuous radiotracking, field test, Microtus arvalis

  

Source: Airoldi, Jean-Pierre - Zoologischen Institut, Universitšt Bern
Richner, Heinz - Zoologischen Institut, Universitšt Bern

 

Collections: Environmental Sciences and Ecology