Bat recognition technology delivers
with excessive amounts of data is a problem about equal to
shoving a whale into a bottle. So why do we grab so much costly
information when monitoring bats? It hardly seems productive to
troll through gigabytes of information for hours on end just to
index general bat activity. Then
there is the problem of storing and sharing large blocks of data
to consider. Time for a rethink.
detectors are the first of a new generation of thinking sensors
designed to recognize the difference between echolocation
calls made by bats and environmental noise made by insects
This means that the weather can’t postpone your
monitoring effort – just put them out and these detectors will
work for up to 40 nights.
But the real power of the system kicks in when multiple
detectors are teamed up to form Arrays like the one that
identified rare short-tail bats in the Landsborough Valley in
New Zealand in 2010. Read about the
As well as being useful for bat conservation TrakaBat
Arrays also offer industry an effective way to improve their
environmental assessments of areas proposed for development
such as wind-farms, hydro dams or in forestry blocks scheduled for
The great news is that you don't have to be a techno-wiz
to deploy them and they won't bog you down
with hours of post analysis work. The results are
displayed in graphs that can be pasted into presentations or
reports. A text summary is also created. Data storage and
e-mail transfers are not a problem either because these devices
can pack 10,000 records into a tiny 130kB file.
TrakaBat detectors cost only $NZ880 per unit
. Check your currency here
and you will notice that the exchange rate makes this a competitive price for a
self-contained device capable of minimizing your overall
All of this makes TrakaBat detectors ideal
reconnaissance tools. If detailed call analysis
is your aim, then you can certainly improve your project's
efficiency by using TrakaBat Arrays to find the best
locations in which to place more expensive equipment.
Summary results from a
42-night monitoring period in Fiordland National Park. Both
New Zealand bat species are present. The time-line shows
most bat activity spans from 22:00 through to 05:00.
On low-noise nights short-tail bats (STB) were detected
every night at average rate of 67-passes per night. Long
tail bats were detected on most nights at a much lower
average rate of 2.7 passes per night. The most dominant
frequency range detected was 24-28kHz.