Pygmy Possum Project

Shrinking Spread

Using my EPP distribution map for the 5 years of observation from 2014 to 2018, I was able to compare this with my 2019 EPP resurvey map to ascertain any change in EPP distribution due to a prolonged period of rainfall insufficiency. The changes are summarised on the 2019 Distribution Change map. In the main changes show a shrinkage in EPP distribution. The resurvey was achieved primarily by 10-night remote camera deployments with freshly-blooming Banksia ericifolia or spinulosa blooms as the targets. Negatives were followed up with a deployment of multiple cameras aligned in transects to pick up the start of occurrence or as groups to determine low occurrence areas. The resurvey map was created solely by myself, Bob I Jones, on 1 September 2019. The data points used for the map were mainly sourced by my own camera deployments (43 sites), but with minor additions from the Ku-ring-gai Council EPP Monitoring program (9 sites) to which I also contributed and the Southern Brown Bandicoot Monitoring program (5 sites) which uses lures very similar to those I trialled near the beginning of my program.

Comparing the 2019 resurvey map with the 2013-2018 base map of EPP distribution we can see the distribution of EPPs has shrunk in its spread in the following ways:

  • Disappeared from the following areas of or adjacent to the western section of Garigal National Park - a substantial shrinkage in occurrence:
    1. HART Driver Training area of the upper Middle Harbour Creek catchment.
    2. Acron Oval - Cambourne Track area of the upper Middle Harbour Creek catchment.
    3. Founders Way - westernmost Bungaroo Track area of the middle Middle Harbour Creek catchment (but still found just to the east).
    4. Eastern Killara point area of the middle Middle Harbour Creek catchment.
  • Disappeared from the following areas of or adjacent to the western section of Ku-ring-gai Chase National Park - minor patchy shrinkage of occurrence:
    1. Northernmost Barton - Grosvenor firetrail area (but still found on either side of this).
    2. Stonecrop - Gwydir firestail area..
  • Disappeared from the following areas of or adjacent to the middle section of Ku-ring-gai Chase National Park - only one particular area/event.
    1. Peninsula Firearm Academy construction area (occurrence sites now completely cleared).

 

 

 
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