Abstract
GPS-collar tracking devices have been used to track cattle (cows and semi-domesticated reindeer) in northeastern Namibia and northern Finland. Results have been used to analyze pasture use and pasture preference. GPS location data were studied in conjunction with other ancillary geographical data and indigenous knowledge. The first GPS-collar versions had engineering problems, but more recent versions seem to be working well. The risk of data loss can be reduced by using remote data downloaded by VHF-radio or GSM/satellite telephone connections. Although considered highly accurate, GPS data screening and accuracy assessment is highly recommendable. We found that only DOP or the number of satellites used for fix were not reliable for removing inaccurate data; a more complex set of criteria was necessary. Studies show clear patterns in pasture use by both Namibian cattle and Finnish reindeer. The movement of Namibian cattle was determined by the advance of the dry season and availability of water. Finnish reindeer have to migrate according to changing winter conditions and forestry operations. GPS-collars are a useful and reliable tool for studying cattle.
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Polojärvi, K., Colpaert, A., Matengu, K., Kumpula, J. (2011). GPS Collars in Studies of Cattle Movement: Cases of Northeast Namibia and North Finland. In: Brunn, S. (eds) Engineering Earth. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9920-4_12
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DOI: https://doi.org/10.1007/978-90-481-9920-4_12
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