Brush turkeys, lyrebirds & dingos

Changes over time in the number of

Australian brush turkeys & Superb lyrebirds

in relation to the abundance of Dingoes:

Note the vertical yellow bars are the summer months (blue boxes = winter months).

Key findings (Dec'16):

Australian brush turkeys:

Brush turkey numbers peaked in any season and varied greatly between years.
There appeared to be no clear relationship between peaks in turkey numbers and peaks in dingo abundance.
Turkey numbers were at a record low just before the major pulse in dingo abundance within and about the 2014-15 summer. Turkey numbers then steadily increased suggesting little influence arising from this record pulse in dingo abundance.
Accordingly, there is little evidence that pulses in the abundance of dingoes negatively affect brush turkey numbers.

Superb lyrebirds:

Lyrebird numbers peaked in any season and varied greatly between years.
After the major pulse in dingo abundance within and about the 2014-15 summer, lyrebird numbers appeared little affected. However, there is a suggestion that their numbers actually increased and reached a higher more stable level.
Accordingly, there is little evidence that pulses in the abundance of dingoes negatively affect lyrebird numbers.