Two new transmitters
New of the year is that the satellite transmitters are solar powered instead of battery powered as they were last year. This increase the lifetime of the transmitter (no battery) and data can be transmitted whenever there is enough sunlight. The tags are programmed for continuously transmission, which in practice mean that new positions are available daily in the tracking map. As they will only send when there is enough daylight, we will not be able to follow the movements the darkest period of the winter this year. Despite this there are the obvious advantages: the transmitter weighs less and will last longer than the battery powered counterpart. A solar powered satellite transmitter will last for 3-5 years and will provide us with interesting data on for example ivory gull breeding site fidelity.
Published Monday February 16 2009 by Cecilie Miljeteig