An effective, low-tech drop-off solution to facilitate the retrieval of data loggers in animal-tracking studies
2018
ABSTRACTStudying the movement ecology of smaller birds generally implies the use of archival devices, which require retrieval in order to download tracking data. When recapturing fails, archival devices are usually lost and birds carry the devices for longer than necessary. We present a cheap, safe and simple method to detach archival devices from animals in a semi-controlled manner. We used Eco Balloon
Ribbon, a water-soluble
ribbon, to attach GPS loggers to European
Nightjars
Caprimulguseuropaeus via tail mounts. The
ribbonwas used as a weak link that dissolved within two minutes after heavy rain. The deployment duration could be estimated by following
weather forecastsand the GPS loggers retrieved using a GPS-enabled radio tag. During the course of one breeding season, we deployed 44 GPS loggers and successfully retrieved 39. Here, we share our experience with Eco Balloon
Ribbon, describe how to deploy a GPS logger using the tail-mount technique and provide useful tips to increase the success of dro...
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