Sunday 7 February 2021

Revised Possum Lure: Experimenting with LED/Stats Update

 

As we have detailed previously we are preparing shortly to expand the possum part of the process significantly with a fresh look at data gathering at numerous locations in our area.

At each site we are deploying sound lures focussing on possums, and having a second site in the same general location with an indentical set up without the sound lure to compare the results.   Since September 2020 we have been doing this at one location.   Currently we have data that shows at the non sound lure location we have experienced or detailed 199 images of animals and identified 61 instances of specific pest animals, by the large brush tailed possums.   At the sound lure location we have 89 instances of specific pest animals and 458 images of these animals recorded by trail cameras.   

While it is but one location the evidence is suggesting of course that there are more brush tailed possums in the location with the sound lure and the animals at the sound lure location are spending a longer time there including engaging with the sound lure.   There is evidence to show that possums are also engaging with the non sound lure location, including recently rocking or tipping over the bait station (as the mother in the picture with her joey on her back) was seen doing.   Shortly we will be conducting multiple trials with a similar set up but data will be gathered from mulitplication locations including those being conducted by outside organisations to compare to ours.

There are an additional number of aspects to the trial taking place that we will be experimenting with as well. Andrew who is responsible for desiging and creating the electronics for the project has introduced a blinking LED light.   In the example on the left the LED can be seen at the front of the unit just below the line created by the green masking tape.   The LED when the unit plays a sound will repeatedly blink.   During darkness this blink is able to be viewed or noticed from a considerable distance.   While it is currently mounted on a DOC200 the intention is to place the LED in conjunction with a possum unit to encourage possums, who appear to be very curious, to enter the unit or interact with the trap.   

At this stage the LED is red, however further research will be conducted and experimented wtih to see which colour combinations and how ofter the LED is activated to see if it increases interactions with the brush tailed possum


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