REAL-TIME MOOSE TRACKING: AN INTERNET BASED MAPPING APPLICATION USING GPS/GSM-COLLARS IN SWEDEN

摘要: To date, moose (Alces alces) tracking has relied on techniques either based 'Very High Frequency' (VHF) / 'Ultra (UHF) radio collars, or Global Positioning System (GPS) often requiring significant effort in the field to collect data. Here we present a technique that automatically tracks and reports almost real time, presents positions movement paths with an interactive web-based map service. We equipped 25 female GPS/GSM collars Vasterbotten county, northern Sweden. The GPS receivers acquired position every 30 minutes transmitted them after 3.5 hours as standard Short Messaging Service (SMS) message using for Mobile communications (GSM) cell phone network. were extracted from receiving local GSM-modem stored database. During 18 days March 2003, 18,638 by 2,719 SMS messages. Of all positioning attempts 98.1% resulted valid position, whereof 99.7% 3-dimensional positions. real-time approach allows many new research studies; e.g., small- scale migrational studies adapted schedules different phases of migration. Further, public access data can be fundamental importance acceptance when dealing concerns. ALCES VOL. 40: 13-21 (2004)