10.6084/m9.figshare.5853621.v2
Joseph Woodgate
Joseph
Woodgate
James Makinson
James
Makinson
Ka Lim
Ka
Lim
Andrew Reynolds
Andrew
Reynolds
Lars Chittka
Lars
Chittka
doi:10.1038/s41598-017-17553-1: Radar tracks, raw data
figshare
2018
Bumblebee
Bee
Multi-destination routes
Foraging routes
Trapline
Traveling salesman
Harmonic radar
Animal Behaviour
Behavioural Ecology
2018-02-26 12:36:01
Dataset
https://figshare.com/articles/dataset/Radar_tracks_raw_data/5853621
<p>206 x text files (comma separated values)</p><p><br></p>
<p>These files contain
the raw output data from the harmonic radar for bee flights that underpin the publication:</p>
<p>Woodgate JL, Makinson
JC, Lim KS, Reynolds AM, Chittka L. Continuous Radar Tracking Illustrates the
Development of Multi-destination Routes of Bumblebees. Scientific reports. 2017
Dec 11;7(1):17323. doi:10.1038/s41598-017-17553-1</p><p><br></p>
<p>These files are the
output from the radar. For most uses, the processed data from these files
(provided in the linked OSF archive, section ‘Coordinate data from each track’) will be preferable
since they have been converted from radar-centric to geocentric coordinates so
can be compared to one another and aligned with features in the real world.</p><p><br></p>
<p>Each file contains
tracking data from one flight by one bee. Most files contain an entire flight
but in some cases a single flight has been broken up into several sections,
denoted ‘a’, ‘b’, etc. Flights were defined as the movements undertaken by a
bee between leaving the nest and subsequently returning again. The radar
revolves once every 3s and records a positional fix if a signal from a
transponder is detected during each rotation. </p><p><br></p>
<p>Filenames are of the
form ‘YYMMDD_BID_BoutXX’, where </p>
<p>YYMMDD: date on which
track was recorded.</p><p><br></p>
<p>BID: a unique
identifier for each individual bee (will be the same for every datapoint within
a file). The bees were renamed for clarity in the publication according to the
following scheme:</p>
<table>
<tr>
<td>
<p>Name in data files</p>
</td>
<td>
<p>Name in manuscript</p>
</td>
</tr>
<tr>
<td>
<p>B56</p>
</td>
<td>
<p>Bee 1</p>
</td>
</tr>
<tr>
<td>
<p>B61</p>
</td>
<td>
<p>Bee 2</p>
</td>
</tr>
<tr>
<td>
<p>B74</p>
</td>
<td>
<p>Bee 3</p>
</td>
</tr>
<tr>
<td>
<p>Y01</p>
</td>
<td>
<p>Bee 4</p>
</td>
</tr>
<tr>
<td>
<p>O72</p>
</td>
<td>
<p>Bee 5</p>
</td>
</tr>
<tr>
<td>
<p>G20</p>
</td>
<td>
<p>Bee 6</p>
</td>
</tr>
</table>
<p> </p>
<p><br></p><p>BoutXX: number
identifying how many flights each bee had made (A single bout encompasses all
the activity made between the bee leaving the nest and returning again.</p>
<p> </p>
<p><br></p><p>Each file is a text
file with a 3-line header identifying the radar software, the date on which the
tracks were extracted, and variable names for the subsequent rows. The rest of
the file consists of comma delimited columns with a single row for each
positional fix recorded. The variables are:</p><p><br></p>
<p>Date: date on which
recording was made.</p>
<p><br></p><p>Time: timestamp for
each positional fix.</p>
<p><br></p><p>Range: distance in m
of bee from radar.</p>
<p><br></p><p>Azimuth: angle of bee
from axis of radar (NB, the radar records bees’ position in polar coordinates
relative to the radar’s own position. The radar is mobile and cannot be
guaranteed to be in the same position on different days. To convert the track
data to geocentric coordinates we record the position of several fixed
landmarks at the beginning of each day’s tracking and use these to triangulate
the position of the radar.)</p>
<p><br></p><p>Elev_angle: data
recorded by the radar on its own state. Never used in any analysis for this
paper but included for completeness.</p>
<p><br></p><p>Elevation: data
recorded by the radar on its own state. Never used in any analysis for this
paper but included for completeness.</p>
<p><br></p><p>V1: data recorded by
the radar on its own state. Never used in any analysis for this paper but
included for completeness.</p>
<p><br></p><p>V2: data recorded by
the radar on its own state. Never used in any analysis for this paper but
included for completeness.</p>