February 16, 2016

January Monitoring

On the 25th of January the onduline sheets and wooden disks were checked, after being out for 2 months. The main observations under the wooden disks were woodlice and centipedes. Nothing was observed under the onduline sheets. Under two of the disks at the shubland site a lizard was sighted; was not able to identify them as they moved away quickly.

Student Site:
1) Right from carpark: onduline - nothing, disk - woodlice * 2
2) Middle: onduline - nothing, disk - centipede
3) Closest to road: no onduline, disk - nothing

Bund:
1) Opposite track junction and sign: onduline nothing, disk - nothing
2) From track sign past 2nd cabbage tree: onduline nothing, disk - centipede
3) Not found

Pylon:
1) Front: onduline - centipede, disk - woodlice
2) Back right: onduline - nothing, disk - nothing
3) Corner left: onduline - woodlice, disk - nothing

Linwood Ave corner:
1) End: onduline - nothing (had only one sheet)
2) Linwood Ave side - onduline - nothing, disk - nothing
3) Opp side to 2 - onduline - nothing, disk - nothing

5) Old growth:
a) Just over fence: onduline - nothing, disk - skink
b) Further to right: onduline - nothing, disk - skink
c) Further in: onduline - nothing, disk - nothing

Posted on February 16, 2016 08:23 AM by estuarytrust estuarytrust | 0 comments | Leave a comment

December 14, 2015

Monitoring at Charlesworth Wetland Reserve

On the 23rd of November 2015 onduline and wooden disks (artificial retreat) where placed in the five monitoring sites. Three sets of onduline (two sheets) and three wooden disks have been placed randomly on the ground in each site. Before placement the grass under each artificial retreat was cut to ground level.

Wooden disks provide habitat and are a non-destructive way to monitor insects (Bowie & Frampton 2004). Two pieces of onduline sheets (a lightweight corrugated roofing material that has been cut into 285 * 300 pieces) are placed one on top of the other to provide habitat for lizards. Small stones are placed between the sheets to create a small gap from which the lizards can enter or leave. Previous research has shown that artificial retreats such as onduline sheets are used by skinks and geckos and are a useful technique to monitor these animals (Lettink et al. 2011).

The artificial retreats will be left undisturbed until the middle of January, they will then be checked every second month. Each wooden disk will be gently lifted and what is seen underneath will be recorded and a photo taken. The disk will then be gently placed back in the same position. The top sheets of the onduline will also be gently lifted and placed back in position when species are recorded.

If nothing is seen this will also be recorded.

References
Bowie, M. H., & Frampton, C. H. (2004). A practical technique for non-destructive monitoring of soil surface invertebrates for ecological restoration programmes. Ecological Management & Restoration, 5(1), 42.
Lettink, M., O'Donnell, C. F. J., & Hoare, J. M. (2011). Accuracy and precision of skink counts from artificial retreats. New Zealand Journal of Ecology, 35(3), 236-246.

Posted on December 14, 2015 02:38 AM by estuarytrust estuarytrust | 0 comments | Leave a comment

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