SCIENCEsciencemag.org 10 JULY 2020•VOL 369 ISSUE 6500 189
C D
A B
Fig.1. The study system.(A) The study area in the Hula Valley, north Israel. Color
points mark the location of 14,314 individually mapped fruit trees, and green
polygons are fruit tree orchards ( 15 ). Yellow pentagons mark the five known bat
colonies (caves) in the area. (B) ATLAS recording of 9218 movement tracks of
172 bats. Examples of (C) all 148 tracks of one bat over 54 consecutive nights,
and (D) all 596 tracks of another bat over 219 consecutive nights. Dotted tracks were
defined as shortcuts or unrecorded routes, nondotted tracks are regular tracks.
The number in the legend indicates the night (after tagging) in which each particular
shortcut was made. Tracks of the same color were made on nights between the
previous shortcut and up to (including) the night of the shortcut of that color. Green
diamonds mark the trees this bat flew to, or from, the shortcuts or unrecorded
routes. Unrecorded routes not connected to a green diamond went or came back from
out of ATLAS range. Insets show ATLAS tags deployed on adult Egyptian fruit bats
using surgical glue (left) or a custom-made collar (right).
RESEARCH | REPORTS