Field test of a GPS location system for moose Alces alces under Scandinavian boreal conditions
Field test of a GPS location system for moose Alces alces under Scandinavian boreal conditions
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DOI：
10.2981/wlb.1997.006
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发表时间：
1997-01-01
期刊：
影响因子：
1.9
通讯作者：
Edenius, Lars
中科院分区：
文献类型：
--
作者：
Edenius, Lars
本文报道了瑞典北方驼鹿的动物载GPS遥测系统的现场试验。测试涉及位置的准确性（标准模式GPS），在不同的树冠条件下成功定位尝试的百分比，运动的影响，以及GPS遥测系统对自由放养驼鹿的性能。定位精度优于92和183米的95%的时间，优于42和74米的50%的时间，分别取决于是否GPS接收器记录的2-或3-维的位置（3或4颗卫星用于计算的位置）。定位成功率在69%~ 100%之间，且与地上冠层覆盖度和树干断面积成反比。厚的冠层覆盖和高茎断面积降低了定位精度和成功定位尝试的百分比。背包试验表明，3-4公里/小时的移动速度可能会降低成功的定位尝试的百分比在森林树冠下。在驼鹿身上，大约75%的尝试导致了一个位置，成功率在冬季/春季最高，秋季最低。得出的结论是，GPS在野生动物遥感研究中具有巨大的潜力，但运动和栖息地选择的影响必须进一步解决。
This paper reports on field tests of an animal-borne GPS telemetry system for moose Alces alces in northern Sweden. Tests involved accuracy of locations (standard mode GPS), percentage of successful location attempts under different canopy conditions, effect of movement, and performance of the GPS telemetry system on free-ranging moose. Locational accuracy was better than 92 and 183 m 95% of the time, and better than 42 and 74 m 50% of the time, respectively, dependent on whether the GPS receiver recorded a 2- or 3-dimensional location (3 or 4 satellites used to calculate the location). Percentage of successful location attempts ranged within 69-100%, and varied inversely with over-storey canopy cover and basal area of stems. Thick canopy cover and high stem basal area reduced locational accuracy and the percentage of successful location attempts. A backpack trial indicated that movement rate of 3-4 km/hour may reduce the percentage of successful location attempts under forest canopy. On moose, approximately 75% of attempts resulted in a location, the success rate being highest during winter/spring and lowest during fall. It is concluded that GPS has a great potential in wildlife telemetry studies, but effects of movement and habitat selection have to be addressed further.