canberrabirds

Superb Lyrebird future

To: Paul Fennell <>
Subject: Superb Lyrebird future
From: Martin Butterfield <>
Date: Sat, 21 Mar 2015 09:57:15 +1100
Paul

My starting point would be the definition of reporting rate.  If this takes as denominator the total number of datasheets submitted it could well be influenced by the proportion of data sheets submitted for (what I see as) core Lyrebird habitat.  I wonder what pattern you would get if you restricted the exercise to d -h and 08 - 29.

Martin


On 21 March 2015 at 09:16, Paul Fennell <> wrote:

Hello everyone

In compiling the current ABR I have come across some interesting statistics, one of which relates to the Superb Lyrebird.

 

The graph of reporting rates for the species is up and down, and as usual, there is always the puzzle as to what causes the ups and downs.  So I would appreciate any views on the how this pattern has come about.

 

There is the big dip for the 2003 fires, and then a recovery period. However, there are two periods of downward trend that could bear some explanation.

 

 

Paul Fennell

Editor Annual Bird Report

Manager COG Databases

0262541804

0407105460

 


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