Biology of an invasive species American mink (Mustela vision) on the Sazava River in the Czechomoravian highlands.
American mink is an alien, invasive species in the Czech Republic, and it could cause a serious damage to the natural ecosystems.
The range of the TELENAX´s TXE-207IH transmitter is 1000 meters (once implanted and with an internal coil antenna). In comparison with transmitters previously used from USA, the range is approximately the same.
This research helps us get to know the biology of this species and find out the real menace, which could be caused by this animal.
In between 2005-2006 we monitored 2 males of American mink with non-Telenax transmitters. In Autumn 2009 we decided to continue with this project and start monitoring some more individuals this time focusing on females.
During the last winter we caught two females and eight males. We implanted the transmitters into the two females and one male. Unfortunately one female died and the male got lost after one month. But the last female was monitored for the period of one year. In the end of January 2011 we recaptured it and reimplanted with a new transmitter. Recently we have also managed to catch another female and she got also a new Telenax transmitter.
The animals were released after recovering. They had no problems after the operation and their behavior was normal.
The range of the TXE-207IH transmitter is 1000 meters in ideal conditions (already implanted), but these animals are often hidden under a bank, so sometimes the range is shorter: 200-400m. (In comparison with the aforementioned transmitters from USA the range is approximately the same).
However, I have very much appreciated the fact that Telenax transmitters have mortality sensors, so we can be sure the animal is not dead even if it is not moving for a long time.
We monitor these animals every day (including a all night long, monitoring once a month).
TELENAX is pleased to thank Petra Hlavakova for sharing this article with us.