Specifications for Lotek bird and bat nanotags can be viewed on the Lotek Website. The main difference between traditional ‘beeper’ tags and nanotags is that the latter type are digitally coded. This allows for multiple tags operating on the same frequency to be uniquely identified.
There are several important criteria to consider prior to ordering tags:
- Size – Minimize weight of the tag + attachment materials.
- Operational life – Battery size and burst interval (amount of time between consecutive pulses) influence the operational life of a tag. Bigger batteries have a longer lifespan, but increased weight. A longer burst interval results in a longer lifespan but reduced detection rate. When ordering Lotek coded tags, please specify “extended life” tags. “Standard life” tags do not work reliably with SensorGnome receivers
- Burst interval – Although a longer burst interval provides a longer operational life, increasing the burst interval reduces the number of data points attainable within a given time period.
- Attachment method – Modifications to tags (e.g. tubes) may be necessary for certain attachment methods.