the status and distribution of the greater one-horned rhino in nepal

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THE STATUS AND DISTRIBUTION OF THE GREATER ONE HORNED RHINO IN NEPAL
Figure 13: Observer team on elephant back
3.3.1. Track logging
Each elephant team carried a Garmin eTrex-H (High Antenna) GPS receiver to avoid under counts.
The GPS receivers were all set at the start of each day to automati cally record the census tracks.
The Garmin eTrex-H conti nuously worked in all the terrain including thick forest. The data were
downloaded at the end of each day on to a computer using DNRGarmin soft ware. Each track data
was then transformed into the same coordinate system as the underlying park satellite image
(Landsat ETM+ image of 2006 for Bardia NP and Landsat ETM+ mosaic created from images of
multi ple dates from 1999-2002 for Chitwan NP) and associated coverage maps (including park
boundary and survey blocks derived from Nepal Government topographic maps of 1:25,000 scale)
in ESRI ArcGIS soft ware (Figure 14).
Figure 14: Sample GPS tracks map showing a day’s coverage - Chitwan Nati onal Park