Rainbow Lorikeets x 3 - Queanbeyan River

[martin butterfield <>]

Peter

My immediate answer to your question is yes.

I have attached a graph showing the values of A (Abundance ie average number of birds per site week)) and F (Frequency ie % of sites in which the species is reported) for the 28 years of the GBS.  Eyeballing the graphs shows pretty clear evidence of a rise in more recent years.  I have also shown a 4th order polynomial trend line for both series which smooths out the bumps: it is clearly a significant relationship for A and what I would term an evident, but not statistically significant realtionship for F.

regards

Martin

On Wed, Mar 31, 2010 at 10:51 AM, Peter Ormay <> wrote:

I'm interested. Keep the Rainbow Lorikeet reports from the region coming flotek. I thought they were very rare here.

 

Martin, has there been an increase in sightings over the last few years?

Peter