Journal
JOURNAL OF ORNITHOLOGY
Volume 163, Issue 3, Pages 849-854Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10336-022-01982-5
Keywords
Aquila fasciata; Aquila chrysaetos; Accumulation curve; Breakpoint regression; GPS; Kernel density; Telemetry; Territory
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Funding
- Red Electrica de Espana
- ACCIONA Eolica de Levante
- Lafarge Holcim
- Wildlife Service of the Valencian Community regional government (Conselleria d'Agricultura, Desenvolupament Rural, Emergencia Climatica i Transicio Ecologica, Generalitat Valenciana, Spain)
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In this paper, the authors demonstrate that between 2200 and 2800 fixes are sufficient to define the territory of two long-lived resident raptors marked by GPS transmitters. This finding is valuable for movement ecology studies lacking long-term GPS data series.
In this paper, we show how many fixes are enough to define the territory of two long-lived resident raptors marked by GPS transmitters. To this end, we analyzed high-resolution GPS data from 50 territorial Bonelli's eagles (Aquila fasciata) and 9 territorial Golden eagles (Aquila chrysaetos) equipped with GPS/GSM dataloggers. Our results show that between 2200 and 2800 fixes are enough to define the territory. This is interesting for movement ecology works where long-term GPS data series are not available.
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